Merge tag 'drm-misc-next-2022-09-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.1:

UAPI Changes:

Cross-subsystem Changes:
  - dma-buf: Improve signaling when debugging

Core Changes:
  - Backlight handling improvements
  - format-helper: Add drm_fb_build_fourcc_list()
  - fourcc: Kunit tests improvements
  - modes: Add DRM_MODE_INIT() macro
  - plane: Remove drm_plane_init(), Allocate planes with drm_universal_plane_alloc()
  - plane-helper: Add drm_plane_helper_atomic_check()
  - probe-helper: Add drm_connector_helper_get_modes_fixed() and
    drm_crtc_helper_mode_valid_fixed()
  - tests: Conversion to parametrized tests, test name consistency

Driver Changes:
  - amdgpu: Fix for a VRAM eviction issue
  - ast: Resolution handling improvements
  - mediatek: small code improvements for DP
  - omap: Refcounting fix, small improvements
  - rockchip: RK3568 support, Gamma support for RK3399
  - sun4i: Build failure fix when !OF
  - udl: Multiple fixes here and there
  - vc4: HDMI hotplug handling improvements
  - vkms: Warning fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923073943.d43tne5hni3iknlv@houat

129 files changed, 2316 insertions, 2090 deletions

diff --git a/Documentation/devicetree/bindings/display/bridge/chrontel,ch7033.yaml b/Documentation/devicetree/bindings/display/bridge/chrontel,ch7033.yaml
index 984b90893583..bb6289c7d375 100644
--- a/Documentation/devicetree/bindings/display/bridge/chrontel,ch7033.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/chrontel,ch7033.yaml
@@ -14,19 +14,6 @@ properties:
   compatible:
     const: chrontel,ch7033
 
-  chrontel,byteswap:
-    $ref: /schemas/types.yaml#/definitions/uint8
-    enum:
-      - 0  # BYTE_SWAP_RGB
-      - 1  # BYTE_SWAP_RBG
-      - 2  # BYTE_SWAP_GRB
-      - 3  # BYTE_SWAP_GBR
-      - 4  # BYTE_SWAP_BRG
-      - 5  # BYTE_SWAP_BGR
-    description: |
-      Set the byteswap value of the bridge. This is optional and if not
-      set value of BYTE_SWAP_BGR is used.
-
   reg:
     maxItems: 1
     description: I2C address of the device
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
index 39792f051d2d..9a223df8530c 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
@@ -8,6 +8,7 @@ Required properties:
 	"rockchip,px30-mipi-dsi", "snps,dw-mipi-dsi"
 	"rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi"
 	"rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi"
+	"rockchip,rk3568-mipi-dsi", "snps,dw-mipi-dsi"
 - reg: Represent the physical address range of the controller.
 - interrupts: Represent the controller's interrupt to the CPU(s).
 - clocks, clock-names: Phandles to the controller's pll reference
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 7634c27ac562..393d218e4a0c 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -679,6 +679,74 @@ Contact: Sam Ravnborg
 
 Level: Advanced
 
+Brightness handling on devices with multiple internal panels
+============================================================
+
+On x86/ACPI devices there can be multiple backlight firmware interfaces:
+(ACPI) video, vendor specific and others. As well as direct/native (PWM)
+register programming by the KMS driver.
+
+To deal with this backlight drivers used on x86/ACPI call
+acpi_video_get_backlight_type() which has heuristics (+quirks) to select
+which backlight interface to use; and backlight drivers which do not match
+the returned type will not register themselves, so that only one backlight
+device gets registered (in a single GPU setup, see below).
+
+At the moment this more or less assumes that there will only
+be 1 (internal) panel on a system.
+
+On systems with 2 panels this may be a problem, depending on
+what interface acpi_video_get_backlight_type() selects:
+
+1. native: in this case the KMS driver is expected to know which backlight
+   device belongs to which output so everything should just work.
+2. video: this does support controlling multiple backlights, but some work
+   will need to be done to get the output <-> backlight device mapping
+
+The above assumes both panels will require the same backlight interface type.
+Things will break on systems with multiple panels where the 2 panels need
+a different type of control. E.g. one panel needs ACPI video backlight control,
+where as the other is using native backlight control. Currently in this case
+only one of the 2 required backlight devices will get registered, based on
+the acpi_video_get_backlight_type() return value.
+
+If this (theoretical) case ever shows up, then supporting this will need some
+work. A possible solution here would be to pass a device and connector-name
+to acpi_video_get_backlight_type() so that it can deal with this.
+
+Note in a way we already have a case where userspace sees 2 panels,
+in dual GPU laptop setups with a mux. On those systems we may see
+either 2 native backlight devices; or 2 native backlight devices.
+
+Userspace already has code to deal with this by detecting if the related
+panel is active (iow which way the mux between the GPU and the panels
+points) and then uses that backlight device. Userspace here very much
+assumes a single panel though. It picks only 1 of the 2 backlight devices
+and then only uses that one.
+
+Note that all userspace code (that I know off) is currently hardcoded
+to assume a single panel.
+
+Before the recent changes to not register multiple (e.g. video + native)
+/sys/class/backlight devices for a single panel (on a single GPU laptop),
+userspace would see multiple backlight devices all controlling the same
+backlight.
+
+To deal with this userspace had to always picks one preferred device under
+/sys/class/backlight and will ignore the others. So to support brightness
+control on multiple panels userspace will need to be updated too.
+
+There are plans to allow brightness control through the KMS API by adding
+a "display brightness" property to drm_connector objects for panels. This
+solves a number of issues with the /sys/class/backlight API, including not
+being able to map a sysfs backlight device to a specific connector. Any
+userspace changes to add support for brightness control on devices with
+multiple panels really should build on top of this new KMS property.
+
+Contact: Hans de Goede
+
+Level: Advanced
+
 Outside DRM
 ===========
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e1581b90d9d..4f2fa9925116 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14532,6 +14532,7 @@ M:	Daniel Dadap <ddadap@nvidia.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Supported
 F:	drivers/platform/x86/nvidia-wmi-ec-backlight.c
+F:	include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h
 
 NVM EXPRESS DRIVER
 M:	Keith Busch <kbusch@kernel.org>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 7802d8846a8d..44ad4b6bd234 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -212,6 +212,7 @@ config ACPI_VIDEO
 	tristate "Video"
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on INPUT
+	depends on ACPI_WMI || !X86
 	select THERMAL
 	help
 	  This driver implements the ACPI Extensions For Display Adapters
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 5cbe2196176d..a7c3d11e0dac 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -73,6 +73,16 @@ module_param(device_id_scheme, bool, 0444);
 static int only_lcd = -1;
 module_param(only_lcd, int, 0444);
 
+/*
+ * Display probing is known to take up to 5 seconds, so delay the fallback
+ * backlight registration by 5 seconds + 3 seconds for some extra margin.
+ */
+static int register_backlight_delay = 8;
+module_param(register_backlight_delay, int, 0444);
+MODULE_PARM_DESC(register_backlight_delay,
+	"Delay in seconds before doing fallback (non GPU driver triggered) "
+	"backlight registration, set to 0 to disable.");
+
 static bool may_report_brightness_keys;
 static int register_count;
 static DEFINE_MUTEX(register_count_mutex);
@@ -81,7 +91,9 @@ static LIST_HEAD(video_bus_head);
 static int acpi_video_bus_add(struct acpi_device *device);
 static int acpi_video_bus_remove(struct acpi_device *device);
 static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
-void acpi_video_detect_exit(void);
+static void acpi_video_bus_register_backlight_work(struct work_struct *ignored);
+static DECLARE_DELAYED_WORK(video_bus_register_backlight_work,
+			    acpi_video_bus_register_backlight_work);
 
 /*
  * Indices in the _BCL method response: the first two items are special,
@@ -1859,8 +1871,6 @@ static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)
 	if (video->backlight_registered)
 		return 0;
 
-	acpi_video_run_bcl_for_osi(video);
-
 	if (acpi_video_get_backlight_type() != acpi_backlight_video)
 		return 0;
 
@@ -2086,7 +2096,11 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	list_add_tail(&video->entry, &video_bus_head);
 	mutex_unlock(&video_list_lock);
 
-	acpi_video_bus_register_backlight(video);
+	/*
+	 * The userspace visible backlight_device gets registered separately
+	 * from acpi_video_register_backlight().
+	 */
+	acpi_video_run_bcl_for_osi(video);
 	acpi_video_bus_add_notify_handler(video);
 
 	return 0;
@@ -2111,20 +2125,25 @@ static int acpi_video_bus_remove(struct acpi_device *device)
 
 	video = acpi_driver_data(device);
 
-	acpi_video_bus_remove_notify_handler(video);
-	acpi_video_bus_unregister_backlight(video);
-	acpi_video_bus_put_devices(video);
-
 	mutex_lock(&video_list_lock);
 	list_del(&video->entry);
 	mutex_unlock(&video_list_lock);
 
+	acpi_video_bus_remove_notify_handler(video);
+	acpi_video_bus_unregister_backlight(video);
+	acpi_video_bus_put_devices(video);
+
 	kfree(video->attached_array);
 	kfree(video);
 
 	return 0;
 }
 
+static void acpi_video_bus_register_backlight_work(struct work_struct *ignored)
+{
+	acpi_video_register_backlight();
+}
+
 static int __init is_i740(struct pci_dev *dev)
 {
 	if (dev->device == 0x00D1)
@@ -2235,6 +2254,18 @@ int acpi_video_register(void)
 	 */
 	register_count = 1;
 
+	/*
+	 * acpi_video_bus_add() skips registering the userspace visible
+	 * backlight_device. The intend is for this to be registered by the
+	 * drm/kms driver calling acpi_video_register_backlight() *after* it is
+	 * done setting up its own native backlight device. The delayed work
+	 * ensures that acpi_video_register_backlight() always gets called
+	 * eventually, in case there is no drm/kms driver or it is disabled.
+	 */
+	if (register_backlight_delay)
+		schedule_delayed_work(&video_bus_register_backlight_work,
+				      register_backlight_delay * HZ);
+
 leave:
 	mutex_unlock(&register_count_mutex);
 	return ret;
@@ -2245,6 +2276,7 @@ void acpi_video_unregister(void)
 {
 	mutex_lock(&register_count_mutex);
 	if (register_count) {
+		cancel_delayed_work_sync(&video_bus_register_backlight_work);
 		acpi_bus_unregister_driver(&acpi_video_bus);
 		register_count = 0;
 		may_report_brightness_keys = false;
@@ -2253,19 +2285,16 @@ void acpi_video_unregister(void)
 }
 EXPORT_SYMBOL(acpi_video_unregister);
 
-void acpi_video_unregister_backlight(void)
+void acpi_video_register_backlight(void)
 {
 	struct acpi_video_bus *video;
 
-	mutex_lock(&register_count_mutex);
-	if (register_count) {
-		mutex_lock(&video_list_lock);
-		list_for_each_entry(video, &video_bus_head, entry)
-			acpi_video_bus_unregister_backlight(video);
-		mutex_unlock(&video_list_lock);
-	}
-	mutex_unlock(&register_count_mutex);
+	mutex_lock(&video_list_lock);
+	list_for_each_entry(video, &video_bus_head, entry)
+		acpi_video_bus_register_backlight(video);
+	mutex_unlock(&video_list_lock);
 }
+EXPORT_SYMBOL(acpi_video_register_backlight);
 
 bool acpi_video_handles_brightness_key_presses(void)
 {
@@ -2302,7 +2331,6 @@ static int __init acpi_video_init(void)
 
 static void __exit acpi_video_exit(void)
 {
-	acpi_video_detect_exit();
 	acpi_video_unregister();
 }
 
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 5d7f38016a24..db2474fe58ac 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -17,8 +17,9 @@
  * Otherwise vendor specific drivers like thinkpad_acpi, asus-laptop,
  * sony_acpi,... can take care about backlight brightness.
  *
- * Backlight drivers can use acpi_video_get_backlight_type() to determine
- * which driver should handle the backlight.
+ * Backlight drivers can use acpi_video_get_backlight_type() to determine which
+ * driver should handle the backlight. RAW/GPU-driver backlight drivers must
+ * use the acpi_video_backlight_use_native() helper for this.
  *
  * If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)
  * this file will not be compiled and acpi_video_get_backlight_type() will
@@ -27,20 +28,16 @@
 
 #include <linux/export.h>
 #include <linux/acpi.h>
+#include <linux/apple-gmux.h>
 #include <linux/backlight.h>
 #include <linux/dmi.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/platform_data/x86/nvidia-wmi-ec-backlight.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
 #include <acpi/video.h>
 
-void acpi_video_unregister_backlight(void);
-
-static bool backlight_notifier_registered;
-static struct notifier_block backlight_nb;
-static struct work_struct backlight_notify_work;
-
 static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef;
 static enum acpi_backlight_type acpi_backlight_dmi = acpi_backlight_undef;
 
@@ -78,6 +75,36 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
 	return AE_OK;
 }
 
+/* This depends on ACPI_WMI which is X86 only */
+#ifdef CONFIG_X86
+static bool nvidia_wmi_ec_supported(void)
+{
+	struct wmi_brightness_args args = {
+		.mode = WMI_BRIGHTNESS_MODE_GET,
+		.val = 0,
+		.ret = 0,
+	};
+	struct acpi_buffer buf = { (acpi_size)sizeof(args), &args };
+	acpi_status status;
+
+	status = wmi_evaluate_method(WMI_BRIGHTNESS_GUID, 0,
+				     WMI_BRIGHTNESS_METHOD_SOURCE, &buf, &buf);
+	if (ACPI_FAILURE(status))
+		return false;
+
+	/*
+	 * If brightness is handled by the EC then nvidia-wmi-ec-backlight
+	 * should be used, else the GPU driver(s) should be used.
+	 */
+	return args.ret == WMI_BRIGHTNESS_SOURCE_EC;
+}
+#else
+static bool nvidia_wmi_ec_supported(void)
+{
+	return false;
+}
+#endif
+
 /* Force to use vendor driver when the ACPI device is known to be
  * buggy */
 static int video_detect_force_vendor(const struct dmi_system_id *d)
@@ -105,63 +132,143 @@ static int video_detect_force_none(const struct dmi_system_id *d)
 }
 
 static const struct dmi_system_id video_detect_dmi_table[] = {
-	/* On Samsung X360, the BIOS will set a flag (VDRV) if generic
-	 * ACPI backlight device is used. This flag will definitively break
-	 * the backlight interface (even the vendor interface) until next
-	 * reboot. It's why we should prevent video.ko from being used here
-	 * and we can't rely on a later call to acpi_video_unregister().
-	 */
 	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1128309 */
 	 .callback = video_detect_force_vendor,
-	 /* X360 */
+	 /* Acer KAV80 */
 	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
-		DMI_MATCH(DMI_BOARD_NAME, "X360"),
+		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
 		},
 	},
 	{
-	.callback = video_detect_force_vendor,
-	/* Asus UL30VT */
-	.matches = {
+	 .callback = video_detect_force_vendor,
+	 /* Asus UL30VT */
+	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"),
 		},
 	},
 	{
-	.callback = video_detect_force_vendor,
-	/* Asus UL30A */
-	.matches = {
+	 .callback = video_detect_force_vendor,
+	 /* Asus UL30A */
+	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
 		},
 	},
 	{
-	.callback = video_detect_force_vendor,
-	/* GIGABYTE GB-BXBT-2807 */
-	.matches = {
+	 .callback = video_detect_force_vendor,
+	 /* Asus X55U */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Asus X101CH */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Asus X401U */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Asus X501U */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Asus 1015CX */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* GIGABYTE GB-BXBT-2807 */
+	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"),
 		},
 	},
 	{
-	.callback = video_detect_force_vendor,
-	/* Sony VPCEH3U1E */
-	.matches = {
+	 .callback = video_detect_force_vendor,
+	 /* Samsung N150/N210/N220 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+		DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Samsung NF110/NF210/NF310 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
+		DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Samsung NC210 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"),
+		DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 /* Sony VPCEH3U1E */
+	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"),
 		},
 	},
 	{
-	.callback = video_detect_force_vendor,
-	/* Xiaomi Mi Pad 2 */
-	.matches = {
+	 .callback = video_detect_force_vendor,
+	 /* Xiaomi Mi Pad 2 */
+	 .matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
 		},
 	},
 
 	/*
+	 * Toshiba models with Transflective display, these need to use
+	 * the toshiba_acpi vendor driver for proper Transflective handling.
+	 */
+	{
+	 .callback = video_detect_force_vendor,
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R500"),
+		},
+	},
+	{
+	 .callback = video_detect_force_vendor,
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R600"),
+		},
+	},
+
+	/*
 	 * These models have a working acpi_video backlight control, and using
 	 * native backlight causes a regression where backlight does not work
 	 * when userspace is not handling brightness key events. Disable
@@ -390,130 +497,119 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		},
 	},
 	{
-	 /* https://bugzilla.kernel.org/show_bug.cgi?id=207835 */
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1012674 */
 	 .callback = video_detect_force_native,
-	 /* Acer TravelMate 5735Z */
+	 /* Acer Aspire 5741 */
 	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5735Z"),
-		DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"),
+		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	/* ASUSTeK COMPUTER INC. GA401 */
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "GA401"),
-		},
-	},
-	{
-	.callback = video_detect_force_native,
-	/* ASUSTeK COMPUTER INC. GA502 */
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "GA502"),
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=42993 */
+	 .callback = video_detect_force_native,
+	 /* Acer Aspire 5750 */
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	/* ASUSTeK COMPUTER INC. GA503 */
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "GA503"),
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=42833 */
+	 .callback = video_detect_force_native,
+	 /* Acer Extensa 5235 */
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
 		},
 	},
-	/*
-	 * Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a
-	 * working native and video interface. However the default detection
-	 * mechanism first registers the video interface before unregistering
-	 * it again and switching to the native interface during boot. This
-	 * results in a dangling SBIOS request for backlight change for some
-	 * reason, causing the backlight to switch to ~2% once per boot on the
-	 * first power cord connect or disconnect event. Setting the native
-	 * interface explicitly circumvents this buggy behaviour, by avoiding
-	 * the unregistering process.
-	 */
 	{
-	.callback = video_detect_force_native,
-	.ident = "Clevo NL5xRU",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+	 .callback = video_detect_force_native,
+	 /* Acer TravelMate 4750 */
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "Clevo NL5xRU",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
-		DMI_MATCH(DMI_BOARD_NAME, "AURA1501"),
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=207835 */
+	 .callback = video_detect_force_native,
+	 /* Acer TravelMate 5735Z */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5735Z"),
+		DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "Clevo NL5xRU",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
-		DMI_MATCH(DMI_BOARD_NAME, "EDUBOOK1502"),
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=36322 */
+	 .callback = video_detect_force_native,
+	 /* Acer TravelMate 5760 */
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "Clevo NL5xNU",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+	 .callback = video_detect_force_native,
+	 /* ASUSTeK COMPUTER INC. GA401 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "GA401"),
 		},
 	},
-	/*
-	 * The TongFang PF5PU1G, PF4NU1F, PF5NU1G, and PF5LUXG/TUXEDO BA15 Gen10,
-	 * Pulse 14/15 Gen1, and Pulse 15 Gen2 have the same problem as the Clevo
-	 * NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2. See the description
-	 * above.
-	 */
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF5PU1G",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "PF5PU1G"),
+	 .callback = video_detect_force_native,
+	 /* ASUSTeK COMPUTER INC. GA502 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "GA502"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF4NU1F",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "PF4NU1F"),
+	 .callback = video_detect_force_native,
+	 /* ASUSTeK COMPUTER INC. GA503 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "GA503"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF4NU1F",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
-		DMI_MATCH(DMI_BOARD_NAME, "PULSE1401"),
+	 .callback = video_detect_force_native,
+	 /* Asus UX303UB */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF5NU1G",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "PF5NU1G"),
+	 .callback = video_detect_force_native,
+	 /* Samsung N150P */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
+		DMI_MATCH(DMI_BOARD_NAME, "N150P"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF5NU1G",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
-		DMI_MATCH(DMI_BOARD_NAME, "PULSE1501"),
+	 .callback = video_detect_force_native,
+	 /* Samsung N145P/N250P/N260P */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
+		DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
 		},
 	},
 	{
-	.callback = video_detect_force_native,
-	.ident = "TongFang PF5LUXG",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_NAME, "PF5LUXG"),
+	 .callback = video_detect_force_native,
+	 /* Samsung N250P */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "N250P"),
+		DMI_MATCH(DMI_BOARD_NAME, "N250P"),
 		},
 	},
+
 	/*
 	 * Desktops which falsely report a backlight and which our heuristics
 	 * for this do not catch.
@@ -537,43 +633,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 	{ },
 };
 
-/* This uses a workqueue to avoid various locking ordering issues */
-static void acpi_video_backlight_notify_work(struct work_struct *work)
-{
-	if (acpi_video_get_backlight_type() != acpi_backlight_video)
-		acpi_video_unregister_backlight();
-}
-
-static int acpi_video_backlight_notify(struct notifier_block *nb,
-				       unsigned long val, void *bd)
-{
-	struct backlight_device *backlight = bd;
-
-	/* A raw bl registering may change video -> native */
-	if (backlight->props.type == BACKLIGHT_RAW &&
-	    val == BACKLIGHT_REGISTERED)
-		schedule_work(&backlight_notify_work);
-
-	return NOTIFY_OK;
-}
-
 /*
  * Determine which type of backlight interface to use on this system,
  * First check cmdline, then dmi quirks, then do autodetect.
- *
- * The autodetect order is:
- * 1) Is the acpi-video backlight interface supported ->
- *  no, use a vendor interface
- * 2) Is this a win8 "ready" BIOS and do we have a native interface ->
- *  yes, use a native interface
- * 3) Else use the acpi-video interface
- *
- * Arguably the native on win8 check should be done first, but that would
- * be a behavior change, which may causes issues.
  */
-enum acpi_backlight_type acpi_video_get_backlight_type(void)
+static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native)
 {
 	static DEFINE_MUTEX(init_mutex);
+	static bool nvidia_wmi_ec_present;
+	static bool native_available;
 	static bool init_done;
 	static long video_caps;
 
@@ -585,48 +653,60 @@ enum acpi_backlight_type acpi_video_get_backlight_type(void)
 		acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 				    ACPI_UINT32_MAX, find_video, NULL,
 				    &video_caps, NULL);
-		INIT_WORK(&backlight_notify_work,
-			  acpi_video_backlight_notify_work);
-		backlight_nb.notifier_call = acpi_video_backlight_notify;
-		backlight_nb.priority = 0;
-		if (backlight_register_notifier(&backlight_nb) == 0)
-			backlight_notifier_registered = true;
+		nvidia_wmi_ec_present = nvidia_wmi_ec_supported();
 		init_done = true;
 	}
+	if (native)
+		native_available = true;
 	mutex_unlock(&init_mutex);
 
+	/*
+	 * The below heuristics / detection steps are in order of descending
+	 * presedence. The commandline takes presedence over anything else.
+	 */
 	if (acpi_backlight_cmdline != acpi_backlight_undef)
 		return acpi_backlight_cmdline;
 
+	/* DMI quirks override any autodetection. */
 	if (acpi_backlight_dmi != acpi_backlight_undef)
 		return acpi_backlight_dmi;
 
-	if (!(video_caps & ACPI_VIDEO_BACKLIGHT))
-		return acpi_backlight_vendor;
+	/* Special cases such as nvidia_wmi_ec and apple gmux. */
+	if (nvidia_wmi_ec_present)
+		return acpi_backlight_nvidia_wmi_ec;
 
-	if (acpi_osi_is_win8() && backlight_device_get_by_type(BACKLIGHT_RAW))
-		return acpi_backlight_native;
+	if (apple_gmux_present())
+		return acpi_backlight_apple_gmux;
+
+	/* On systems with ACPI video use either native or ACPI video. */
+	if (video_caps & ACPI_VIDEO_BACKLIGHT) {
+		/*
+		 * Windows 8 and newer no longer use the ACPI video interface,
+		 * so it often does not work. If the ACPI tables are written
+		 * for win8 and native brightness ctl is available, use that.
+		 *
+		 * The native check deliberately is inside the if acpi-video
+		 * block on older devices without acpi-video support native
+		 * is usually not the best choice.
+		 */
+		if (acpi_osi_is_win8() && native_available)
+			return acpi_backlight_native;
+		else
+			return acpi_backlight_video;
+	}
 
-	return acpi_backlight_video;
+	/* No ACPI video (old hw), use vendor specific fw methods. */
+	return acpi_backlight_vendor;
 }
-EXPORT_SYMBOL(acpi_video_get_backlight_type);
 
-/*
- * Set the preferred backlight interface type based on DMI info.
- * This function allows DMI blacklists to be implemented by external
- * platform drivers instead of putting a big blacklist in video_detect.c
- */
-void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type)
+enum acpi_backlight_type acpi_video_get_backlight_type(void)
 {
-	acpi_backlight_dmi = type;
-	/* Remove acpi-video backlight interface if it is no longer desired */
-	if (acpi_video_get_backlight_type() != acpi_backlight_video)
-		acpi_video_unregister_backlight();
+	return __acpi_video_get_backlight_type(false);
 }
-EXPORT_SYMBOL(acpi_video_set_dmi_backlight_type);
+EXPORT_SYMBOL(acpi_video_get_backlight_type);
 
-void __exit acpi_video_detect_exit(void)
+bool acpi_video_backlight_use_native(void)
 {
-	if (backlight_notifier_registered)
-		backlight_unregister_notifier(&backlight_nb);
+	return __acpi_video_get_backlight_type(true) == acpi_backlight_native;
 }
+EXPORT_SYMBOL(acpi_video_backlight_use_native);
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 066400ed8841..406b4e26f538 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -136,6 +136,10 @@ struct dma_fence *dma_fence_get_stub(void)
 			       &dma_fence_stub_ops,
 			       &dma_fence_stub_lock,
 			       0, 0);
+
+		set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
+			&dma_fence_stub.flags);
+
 		dma_fence_signal_locked(&dma_fence_stub);
 	}
 	spin_unlock(&dma_fence_stub_lock);
@@ -161,6 +165,10 @@ struct dma_fence *dma_fence_allocate_private_stub(void)
 		       &dma_fence_stub_ops,
 		       &dma_fence_stub_lock,
 		       0, 0);
+
+	set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
+		&dma_fence_stub.flags);
+
 	dma_fence_signal(fence);
 
 	return fence;
@@ -500,6 +508,8 @@ dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout)
 
 	__dma_fence_might_wait();
 
+	dma_fence_enable_sw_signaling(fence);
+
 	trace_dma_fence_wait_start(fence);
 	if (fence->ops->wait)
 		ret = fence->ops->wait(fence, intr, timeout);
@@ -601,9 +611,6 @@ void dma_fence_enable_sw_signaling(struct dma_fence *fence)
 {
 	unsigned long flags;
 
-	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
-		return;
-
 	spin_lock_irqsave(fence->lock, flags);
 	__dma_fence_enable_signaling(fence);
 	spin_unlock_irqrestore(fence->lock, flags);
@@ -756,19 +763,16 @@ dma_fence_default_wait(struct dma_fence *fence, bool intr, signed long timeout)
 	unsigned long flags;
 	signed long ret = timeout ? timeout : 1;
 
-	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
-		return ret;
-
 	spin_lock_irqsave(fence->lock, flags);
 
+	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
+		goto out;
+
 	if (intr && signal_pending(current)) {
 		ret = -ERESTARTSYS;
 		goto out;
 	}
 
-	if (!__dma_fence_enable_signaling(fence))
-		goto out;
-
 	if (!timeout) {
 		ret = 0;
 		goto out;
diff --git a/drivers/dma-buf/st-dma-fence-chain.c b/drivers/dma-buf/st-dma-fence-chain.c
index 8ce1ea59d31b..0a9b099d0518 100644
--- a/drivers/dma-buf/st-dma-fence-chain.c
+++ b/drivers/dma-buf/st-dma-fence-chain.c
@@ -87,6 +87,8 @@ static int sanitycheck(void *arg)
 	if (!chain)
 		err = -ENOMEM;
 
+	dma_fence_enable_sw_signaling(chain);
+
 	dma_fence_signal(f);
 	dma_fence_put(f);
 
@@ -143,6 +145,8 @@ static int fence_chains_init(struct fence_chains *fc, unsigned int count,
 		}
 
 		fc->tail = fc->chains[i];
+
+		dma_fence_enable_sw_signaling(fc->chains[i]);
 	}
 
 	fc->chain_length = i;
diff --git a/drivers/dma-buf/st-dma-fence-unwrap.c b/drivers/dma-buf/st-dma-fence-unwrap.c
index 4105d5ea8dde..f0cee984b6c7 100644
--- a/drivers/dma-buf/st-dma-fence-unwrap.c
+++ b/drivers/dma-buf/st-dma-fence-unwrap.c
@@ -102,6 +102,8 @@ static int sanitycheck(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	array = mock_array(1, f);
 	if (!array)
 		return -ENOMEM;
@@ -124,12 +126,16 @@ static int unwrap_array(void *arg)
 	if (!f1)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f1);
+
 	f2 = mock_fence();
 	if (!f2) {
 		dma_fence_put(f1);
 		return -ENOMEM;
 	}
 
+	dma_fence_enable_sw_signaling(f2);
+
 	array = mock_array(2, f1, f2);
 	if (!array)
 		return -ENOMEM;
@@ -164,12 +170,16 @@ static int unwrap_chain(void *arg)
 	if (!f1)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f1);
+
 	f2 = mock_fence();
 	if (!f2) {
 		dma_fence_put(f1);
 		return -ENOMEM;
 	}
 
+	dma_fence_enable_sw_signaling(f2);
+
 	chain = mock_chain(f1, f2);
 	if (!chain)
 		return -ENOMEM;
@@ -204,12 +214,16 @@ static int unwrap_chain_array(void *arg)
 	if (!f1)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f1);
+
 	f2 = mock_fence();
 	if (!f2) {
 		dma_fence_put(f1);
 		return -ENOMEM;
 	}
 
+	dma_fence_enable_sw_signaling(f2);
+
 	array = mock_array(2, f1, f2);
 	if (!array)
 		return -ENOMEM;
@@ -248,12 +262,16 @@ static int unwrap_merge(void *arg)
 	if (!f1)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f1);
+
 	f2 = mock_fence();
 	if (!f2) {
 		err = -ENOMEM;
 		goto error_put_f1;
 	}
 
+	dma_fence_enable_sw_signaling(f2);
+
 	f3 = dma_fence_unwrap_merge(f1, f2);
 	if (!f3) {
 		err = -ENOMEM;
@@ -296,10 +314,14 @@ static int unwrap_merge_complex(void *arg)
 	if (!f1)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f1);
+
 	f2 = mock_fence();
 	if (!f2)
 		goto error_put_f1;
 
+	dma_fence_enable_sw_signaling(f2);
+
 	f3 = dma_fence_unwrap_merge(f1, f2);
 	if (!f3)
 		goto error_put_f2;
diff --git a/drivers/dma-buf/st-dma-fence.c b/drivers/dma-buf/st-dma-fence.c
index c8a12d7ad71a..fb6e0a6ae2c9 100644
--- a/drivers/dma-buf/st-dma-fence.c
+++ b/drivers/dma-buf/st-dma-fence.c
@@ -102,6 +102,8 @@ static int sanitycheck(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_fence_signal(f);
 	dma_fence_put(f);
 
@@ -117,6 +119,8 @@ static int test_signaling(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	if (dma_fence_is_signaled(f)) {
 		pr_err("Fence unexpectedly signaled on creation\n");
 		goto err_free;
@@ -190,6 +194,8 @@ static int test_late_add_callback(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_fence_signal(f);
 
 	if (!dma_fence_add_callback(f, &cb.cb, simple_callback)) {
@@ -282,6 +288,8 @@ static int test_status(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	if (dma_fence_get_status(f)) {
 		pr_err("Fence unexpectedly has signaled status on creation\n");
 		goto err_free;
@@ -308,6 +316,8 @@ static int test_error(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_fence_set_error(f, -EIO);
 
 	if (dma_fence_get_status(f)) {
@@ -337,6 +347,8 @@ static int test_wait(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	if (dma_fence_wait_timeout(f, false, 0) != -ETIME) {
 		pr_err("Wait reported complete before being signaled\n");
 		goto err_free;
@@ -379,6 +391,8 @@ static int test_wait_timeout(void *arg)
 	if (!wt.f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(wt.f);
+
 	if (dma_fence_wait_timeout(wt.f, false, 1) != -ETIME) {
 		pr_err("Wait reported complete before being signaled\n");
 		goto err_free;
@@ -458,6 +472,8 @@ static int thread_signal_callback(void *arg)
 			break;
 		}
 
+		dma_fence_enable_sw_signaling(f1);
+
 		rcu_assign_pointer(t->fences[t->id], f1);
 		smp_wmb();
 
diff --git a/drivers/dma-buf/st-dma-resv.c b/drivers/dma-buf/st-dma-resv.c
index 813779e3c9be..15dbea1462ed 100644
--- a/drivers/dma-buf/st-dma-resv.c
+++ b/drivers/dma-buf/st-dma-resv.c
@@ -45,6 +45,8 @@ static int sanitycheck(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_fence_signal(f);
 	dma_fence_put(f);
 
@@ -69,6 +71,8 @@ static int test_signaling(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_resv_init(&resv);
 	r = dma_resv_lock(&resv, NULL);
 	if (r) {
@@ -114,6 +118,8 @@ static int test_for_each(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_resv_init(&resv);
 	r = dma_resv_lock(&resv, NULL);
 	if (r) {
@@ -173,6 +179,8 @@ static int test_for_each_unlocked(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_resv_init(&resv);
 	r = dma_resv_lock(&resv, NULL);
 	if (r) {
@@ -244,6 +252,8 @@ static int test_get_fences(void *arg)
 	if (!f)
 		return -ENOMEM;
 
+	dma_fence_enable_sw_signaling(f);
+
 	dma_resv_init(&resv);
 	r = dma_resv_lock(&resv, NULL);
 	if (r) {
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 2f52e8941074..198ba846d34b 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -235,6 +235,13 @@ config DRM_RADEON
 	select HWMON
 	select BACKLIGHT_CLASS_DEVICE
 	select INTERVAL_TREE
+	# radeon depends on ACPI_VIDEO when ACPI is enabled, for select to work
+	# ACPI_VIDEO's dependencies must also be selected.
+	select INPUT if ACPI
+	select ACPI_VIDEO if ACPI
+	# On x86 ACPI_VIDEO also needs ACPI_WMI
+	select X86_PLATFORM_DEVICES if ACPI && X86
+	select ACPI_WMI if ACPI && X86
 	help
 	  Choose this option if you have an ATI Radeon graphics card.  There
 	  are both PCI and AGP versions.  You don't need to choose this to
@@ -260,6 +267,13 @@ config DRM_AMDGPU
 	select BACKLIGHT_CLASS_DEVICE
 	select INTERVAL_TREE
 	select DRM_BUDDY
+	# amdgpu depends on ACPI_VIDEO when ACPI is enabled, for select to work
+	# ACPI_VIDEO's dependencies must also be selected.
+	select INPUT if ACPI
+	select ACPI_VIDEO if ACPI
+	# On x86 ACPI_VIDEO also needs ACPI_WMI
+	select X86_PLATFORM_DEVICES if ACPI && X86
+	select ACPI_WMI if ACPI && X86
 	help
 	  Choose this option if you have a recent AMD Radeon graphics card.
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index d1a2619fa89f..73a517bcf5c1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -746,7 +746,7 @@ static bool amdgpu_vram_mgr_intersects(struct ttm_resource_manager *man,
 			(amdgpu_vram_mgr_block_size(block) >> PAGE_SHIFT);
 
 		if (place->fpfn < lpfn &&
-		    (place->lpfn && place->lpfn > fpfn))
+		    (!place->lpfn || place->lpfn > fpfn))
 			return true;
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
index fa7421afb9a6..6be9ac2b9c5b 100644
--- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
@@ -26,6 +26,8 @@
 
 #include <linux/pci.h>
 
+#include <acpi/video.h>
+
 #include <drm/drm_crtc_helper.h>
 #include <drm/amdgpu_drm.h>
 #include "amdgpu.h"
@@ -182,7 +184,12 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode
 		return;
 
 	if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU))
-		return;
+		goto register_acpi_backlight;
+
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(dev, "Skipping amdgpu atom DIG backlight registration\n");
+		goto register_acpi_backlight;
+	}
 
 	pdata = kmalloc(sizeof(struct amdgpu_backlight_privdata), GFP_KERNEL);
 	if (!pdata) {
@@ -218,6 +225,11 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode
 error:
 	kfree(pdata);
 	return;
+
+register_acpi_backlight:
+	/* Try registering an ACPI video backlight device instead. */
+	acpi_video_register_backlight();
+	return;
 }
 
 void
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 5da2a1d97b81..44675b51b205 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -90,6 +90,8 @@
 #include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
 
+#include <acpi/video.h>
+
 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
 
 #include "dcn/dcn_1_0_offset.h"
@@ -4038,6 +4040,13 @@ amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
 	amdgpu_dm_update_backlight_caps(dm, dm->num_of_edps);
 	dm->brightness[dm->num_of_edps] = AMDGPU_MAX_BL_LEVEL;
 
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(adev_to_drm(dm->adev), "Skipping amdgpu DM backlight registration\n");
+		/* Try registering an ACPI video backlight device instead. */
+		acpi_video_register_backlight();
+		return;
+	}
+
 	props.max_brightness = AMDGPU_MAX_BL_LEVEL;
 	props.brightness = AMDGPU_MAX_BL_LEVEL;
 	props.type = BACKLIGHT_RAW;
diff --git a/drivers/gpu/drm/amd/pm/powerplay/inc/hardwaremanager.h b/drivers/gpu/drm/amd/pm/powerplay/inc/hardwaremanager.h
index 6e0be6027705..01a7d66864f2 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/inc/hardwaremanager.h
+++ b/drivers/gpu/drm/amd/pm/powerplay/inc/hardwaremanager.h
@@ -401,8 +401,6 @@ extern int phm_powerdown_uvd(struct pp_hwmgr *hwmgr);
 extern int phm_setup_asic(struct pp_hwmgr *hwmgr);
 extern int phm_enable_dynamic_state_management(struct pp_hwmgr *hwmgr);
 extern int phm_disable_dynamic_state_management(struct pp_hwmgr *hwmgr);
-extern bool phm_is_hw_access_blocked(struct pp_hwmgr *hwmgr);
-extern int phm_block_hw_access(struct pp_hwmgr *hwmgr, bool block);
 extern int phm_set_power_state(struct pp_hwmgr *hwmgr,
 		    const struct pp_hw_power_state *pcurrent_state,
 		 const struct pp_hw_power_state *pnew_power_state);
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 103bd4fa698b..1bc0220e6783 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -113,6 +113,9 @@ static bool ast_get_vbios_mode_info(const struct drm_format_info *format,
 	case 1024:
 		vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
 		break;
+	case 1152:
+		vbios_mode->enh_table = &res_1152x864[refresh_rate_index];
+		break;
 	case 1280:
 		if (mode->crtc_vdisplay == 800)
 			vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
@@ -310,7 +313,7 @@ static void ast_set_crtc_reg(struct ast_private *ast,
 	u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
 	u16 temp, precache = 0;
 
-	if ((ast->chip == AST2500) &&
+	if ((ast->chip == AST2500 || ast->chip == AST2600) &&
 	    (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
 		precache = 40;
 
@@ -351,6 +354,12 @@ static void ast_set_crtc_reg(struct ast_private *ast,
 	ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
 	ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
 
+	// Workaround for HSync Time non octave pixels (1920x1080@60Hz HSync 44 pixels);
+	if ((ast->chip == AST2600) && (mode->crtc_vdisplay == 1080))
+		ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xFC, 0xFD, 0x02);
+	else
+		ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xFC, 0xFD, 0x00);
+
 	/* vert timings */
 	temp = (mode->crtc_vtotal) - 2;
 	if (temp & 0x100)
@@ -428,7 +437,7 @@ static void ast_set_dclk_reg(struct ast_private *ast,
 {
 	const struct ast_vbios_dclk_info *clk_info;
 
-	if (ast->chip == AST2500)
+	if ((ast->chip == AST2500) || (ast->chip == AST2600))
 		clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
 	else
 		clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
@@ -1057,6 +1066,8 @@ ast_crtc_helper_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode
 			return MODE_OK;
 		if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
 			return MODE_OK;
+		if ((mode->hdisplay == 1152) && (mode->vdisplay == 864))
+			return MODE_OK;
 
 		if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
 		    (ast->chip == AST2300) || (ast->chip == AST2400) ||
@@ -1089,6 +1100,10 @@ ast_crtc_helper_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode
 		if (mode->vdisplay == 768)
 			status = MODE_OK;
 		break;
+	case 1152:
+		if (mode->vdisplay == 864)
+			status = MODE_OK;
+		break;
 	case 1280:
 		if (mode->vdisplay == 1024)
 			status = MODE_OK;
diff --git a/drivers/gpu/drm/ast/ast_tables.h b/drivers/gpu/drm/ast/ast_tables.h
index dbe1cc620f6e..0378c9bc079b 100644
--- a/drivers/gpu/drm/ast/ast_tables.h
+++ b/drivers/gpu/drm/ast/ast_tables.h
@@ -272,6 +272,13 @@ static const struct ast_vbios_enhtable res_1600x1200[] = {
 	 (SyncPP | Charx8Dot), 0xFF, 1, 0x33 },
 };
 
+static const struct ast_vbios_enhtable res_1152x864[] = {
+	{1600, 1152, 64, 128,  900,  864, 1, 3, VCLK108,	/* 75Hz */
+	 (SyncPP | Charx8Dot | NewModeInfo), 75, 1, 0x3B },
+	{1600, 1152, 64, 128,  900,  864, 1, 3, VCLK108,	/* end */
+	 (SyncPP | Charx8Dot | NewModeInfo), 0xFF, 1, 0x3B },
+};
+
 /* 16:9 */
 static const struct ast_vbios_enhtable res_1360x768[] = {
 	{1792, 1360, 64, 112, 795, 768, 3, 6, VCLK85_5,		/* 60Hz */
diff --git a/drivers/gpu/drm/bridge/chrontel-ch7033.c b/drivers/gpu/drm/bridge/chrontel-ch7033.c
index c5719908ce2d..ba060277c3fd 100644
--- a/drivers/gpu/drm/bridge/chrontel-ch7033.c
+++ b/drivers/gpu/drm/bridge/chrontel-ch7033.c
@@ -68,7 +68,6 @@ enum {
 	BYTE_SWAP_GBR	= 3,
 	BYTE_SWAP_BRG	= 4,
 	BYTE_SWAP_BGR	= 5,
-	BYTE_SWAP_MAX	= 6,
 };
 
 /* Page 0, Register 0x19 */
@@ -356,8 +355,6 @@ static void ch7033_bridge_mode_set(struct drm_bridge *bridge,
 	int hsynclen = mode->hsync_end - mode->hsync_start;
 	int vbporch = mode->vsync_start - mode->vdisplay;
 	int vsynclen = mode->vsync_end - mode->vsync_start;
-	u8 byte_swap;
-	int ret;
 
 	/*
 	 * Page 4
@@ -401,16 +398,8 @@ static void ch7033_bridge_mode_set(struct drm_bridge *bridge,
 	regmap_write(priv->regmap, 0x15, vbporch);
 	regmap_write(priv->regmap, 0x16, vsynclen);
 
-	/* Input color swap. Byte order is optional and will default to
-	 * BYTE_SWAP_BGR to preserve backwards compatibility with existing
-	 * driver.
-	 */
-	ret = of_property_read_u8(priv->bridge.of_node, "chrontel,byteswap",
-				  &byte_swap);
-	if (!ret && byte_swap < BYTE_SWAP_MAX)
-		regmap_update_bits(priv->regmap, 0x18, SWAP, byte_swap);
-	else
-		regmap_update_bits(priv->regmap, 0x18, SWAP, BYTE_SWAP_BGR);
+	/* Input color swap. */
+	regmap_update_bits(priv->regmap, 0x18, SWAP, BYTE_SWAP_BGR);
 
 	/* Input clock and sync polarity. */
 	regmap_update_bits(priv->regmap, 0x19, 0x1, mode->clock >> 16);
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index 2bb957cffd94..2767b70fa2cb 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -563,7 +563,7 @@ static void it6505_debug_print(struct it6505 *it6505, unsigned int reg,
 	struct device *dev = &it6505->client->dev;
 	int val;
 
-	if (likely(!(__drm_debug & DRM_UT_DRIVER)))
+	if (!drm_debug_enabled(DRM_UT_DRIVER))
 		return;
 
 	val = it6505_read(it6505, reg);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
index 7d2ed0ed2fe2..4efb62bcdb63 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
@@ -542,8 +542,8 @@ static int snd_dw_hdmi_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	strlcpy(card->driver, DRIVER_NAME, sizeof(card->driver));
-	strlcpy(card->shortname, "DW-HDMI", sizeof(card->shortname));
+	strscpy(card->driver, DRIVER_NAME, sizeof(card->driver));
+	strscpy(card->shortname, "DW-HDMI", sizeof(card->shortname));
 	snprintf(card->longname, sizeof(card->longname),
 		 "%s rev 0x%02x, irq %d", card->shortname, revision,
 		 data->irq);
@@ -561,7 +561,7 @@ static int snd_dw_hdmi_probe(struct platform_device *pdev)
 
 	dw->pcm = pcm;
 	pcm->private_data = dw;
-	strlcpy(pcm->name, DRIVER_NAME, sizeof(pcm->name));
+	strscpy(pcm->name, DRIVER_NAME, sizeof(pcm->name));
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_dw_hdmi_ops);
 
 	/*
diff --git a/drivers/gpu/drm/display/drm_scdc_helper.c b/drivers/gpu/drm/display/drm_scdc_helper.c
index 81881e81ceae..c3ad4ab2b456 100644
--- a/drivers/gpu/drm/display/drm_scdc_helper.c
+++ b/drivers/gpu/drm/display/drm_scdc_helper.c
@@ -35,6 +35,19 @@
  * HDMI 2.0 specification. It is a point-to-point protocol that allows the
  * HDMI source and HDMI sink to exchange data. The same I2C interface that
  * is used to access EDID serves as the transport mechanism for SCDC.
+ *
+ * Note: The SCDC status is going to be lost when the display is
+ * disconnected. This can happen physically when the user disconnects
+ * the cable, but also when a display is switched on (such as waking up
+ * a TV).
+ *
+ * This is further complicated by the fact that, upon a disconnection /
+ * reconnection, KMS won't change the mode on its own. This means that
+ * one can't just rely on setting the SCDC status on enable, but also
+ * has to track the connector status changes using interrupts and
+ * restore the SCDC status. The typical solution for this is to trigger an
+ * empty modeset in drm_connector_helper_funcs.detect_ctx(), like what vc4 does
+ * in vc4_hdmi_reset_link().
  */
 
 #define SCDC_I2C_SLAVE_ADDRESS 0x54
diff --git a/drivers/gpu/drm/drm_aperture.c b/drivers/gpu/drm/drm_aperture.c
index fdb7d5c17ba1..3b8fdeeafd53 100644
--- a/drivers/gpu/drm/drm_aperture.c
+++ b/drivers/gpu/drm/drm_aperture.c
@@ -74,7 +74,7 @@
  * given framebuffer memory. Ownership of the framebuffer memory is achieved
  * by calling devm_aperture_acquire_from_firmware(). On success, the driver
  * is the owner of the framebuffer range. The function fails if the
- * framebuffer is already by another driver. See below for an example.
+ * framebuffer is already owned by another driver. See below for an example.
  *
  * .. code-block:: c
  *
@@ -112,7 +112,7 @@
  *
  * The generic driver is now subject to forced removal by other drivers. This
  * only works for platform drivers that support hot unplug.
- * When a driver calls drm_aperture_remove_conflicting_framebuffers() et al
+ * When a driver calls drm_aperture_remove_conflicting_framebuffers() et al.
  * for the registered framebuffer range, the aperture helpers call
  * platform_device_unregister() and the generic driver unloads itself. It
  * may not access the device's registers, framebuffer memory, ROM, etc
@@ -164,7 +164,7 @@ EXPORT_SYMBOL(devm_aperture_acquire_from_firmware);
  * @primary: also kick vga16fb if present
  * @req_driver: requesting DRM driver
  *
- * This function removes graphics device drivers which use memory range described by
+ * This function removes graphics device drivers which use the memory range described by
  * @base and @size.
  *
  * Returns:
@@ -182,8 +182,8 @@ EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers);
  * @pdev: PCI device
  * @req_driver: requesting DRM driver
  *
- * This function removes graphics device drivers using memory range configured
- * for any of @pdev's memory bars. The function assumes that PCI device with
+ * This function removes graphics device drivers using the memory range configured
+ * for any of @pdev's memory bars. The function assumes that a PCI device with
  * shadowed ROM drives a primary display and so kicks out vga16fb.
  *
  * Returns:
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index ee5fea48b5cb..98cc3137c062 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -786,7 +786,7 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
 EXPORT_SYMBOL(drm_atomic_helper_check_modeset);
 
 /**
- * drm_atomic_helper_check_wb_connector_state() - Check writeback encoder state
+ * drm_atomic_helper_check_wb_encoder_state() - Check writeback encoder state
  * @encoder: encoder state to check
  * @conn_state: connector state to check
  *
diff --git a/drivers/gpu/drm/drm_damage_helper.c b/drivers/gpu/drm/drm_damage_helper.c
index 937b699ac2a8..d8b2955e88fd 100644
--- a/drivers/gpu/drm/drm_damage_helper.c
+++ b/drivers/gpu/drm/drm_damage_helper.c
@@ -224,6 +224,7 @@ drm_atomic_helper_damage_iter_init(struct drm_atomic_helper_damage_iter *iter,
 				   const struct drm_plane_state *old_state,
 				   const struct drm_plane_state *state)
 {
+	struct drm_rect src;
 	memset(iter, 0, sizeof(*iter));
 
 	if (!state || !state->crtc || !state->fb || !state->visible)
@@ -233,10 +234,12 @@ drm_atomic_helper_damage_iter_init(struct drm_atomic_helper_damage_iter *iter,
 	iter->num_clips = drm_plane_get_damage_clips_count(state);
 
 	/* Round down for x1/y1 and round up for x2/y2 to catch all pixels */
-	iter->plane_src.x1 = state->src.x1 >> 16;
-	iter->plane_src.y1 = state->src.y1 >> 16;
-	iter->plane_src.x2 = (state->src.x2 >> 16) + !!(state->src.x2 & 0xFFFF);
-	iter->plane_src.y2 = (state->src.y2 >> 16) + !!(state->src.y2 & 0xFFFF);
+	src = drm_plane_state_src(state);
+
+	iter->plane_src.x1 = src.x1 >> 16;
+	iter->plane_src.y1 = src.y1 >> 16;
+	iter->plane_src.x2 = (src.x2 >> 16) + !!(src.x2 & 0xFFFF);
+	iter->plane_src.y2 = (src.y2 >> 16) + !!(src.y2 & 0xFFFF);
 
 	if (!iter->clips || !drm_rect_equals(&state->src, &old_state->src)) {
 		iter->clips = NULL;
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index 56642816fdff..4afc4ac27342 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -793,3 +793,111 @@ void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitc
 	kfree(src32);
 }
 EXPORT_SYMBOL(drm_fb_xrgb8888_to_mono);
+
+static bool is_listed_fourcc(const uint32_t *fourccs, size_t nfourccs, uint32_t fourcc)
+{
+	const uint32_t *fourccs_end = fourccs + nfourccs;
+
+	while (fourccs < fourccs_end) {
+		if (*fourccs == fourcc)
+			return true;
+		++fourccs;
+	}
+	return false;
+}
+
+/**
+ * drm_fb_build_fourcc_list - Filters a list of supported color formats against
+ *                            the device's native formats
+ * @dev: DRM device
+ * @native_fourccs: 4CC codes of natively supported color formats
+ * @native_nfourccs: The number of entries in @native_fourccs
+ * @driver_fourccs: 4CC codes of all driver-supported color formats
+ * @driver_nfourccs: The number of entries in @driver_fourccs
+ * @fourccs_out: Returns 4CC codes of supported color formats
+ * @nfourccs_out: The number of available entries in @fourccs_out
+ *
+ * This function create a list of supported color format from natively
+ * supported formats and the emulated formats.
+ * At a minimum, most userspace programs expect at least support for
+ * XRGB8888 on the primary plane. Devices that have to emulate the
+ * format, and possibly others, can use drm_fb_build_fourcc_list() to
+ * create a list of supported color formats. The returned list can
+ * be handed over to drm_universal_plane_init() et al. Native formats
+ * will go before emulated formats. Other heuristics might be applied
+ * to optimize the order. Formats near the beginning of the list are
+ * usually preferred over formats near the end of the list.
+ *
+ * Returns:
+ * The number of color-formats 4CC codes returned in @fourccs_out.
+ */
+size_t drm_fb_build_fourcc_list(struct drm_device *dev,
+				const u32 *native_fourccs, size_t native_nfourccs,
+				const u32 *driver_fourccs, size_t driver_nfourccs,
+				u32 *fourccs_out, size_t nfourccs_out)
+{
+	u32 *fourccs = fourccs_out;
+	const u32 *fourccs_end = fourccs_out + nfourccs_out;
+	bool found_native = false;
+	size_t i;
+
+	/*
+	 * The device's native formats go first.
+	 */
+
+	for (i = 0; i < native_nfourccs; ++i) {
+		u32 fourcc = native_fourccs[i];
+
+		if (is_listed_fourcc(fourccs_out, fourccs - fourccs_out, fourcc)) {
+			continue; /* skip duplicate entries */
+		} else if (fourccs == fourccs_end) {
+			drm_warn(dev, "Ignoring native format %p4cc\n", &fourcc);
+			continue; /* end of available output buffer */
+		}
+
+		drm_dbg_kms(dev, "adding native format %p4cc\n", &fourcc);
+
+		if (!found_native)
+			found_native = is_listed_fourcc(driver_fourccs, driver_nfourccs, fourcc);
+		*fourccs = fourcc;
+		++fourccs;
+	}
+
+	/*
+	 * The plane's atomic_update helper converts the framebuffer's color format
+	 * to a native format when copying to device memory.
+	 *
+	 * If there is not a single format supported by both, device and
+	 * driver, the native formats are likely not supported by the conversion
+	 * helpers. Therefore *only* support the native formats and add a
+	 * conversion helper ASAP.
+	 */
+	if (!found_native) {
+		drm_warn(dev, "Format conversion helpers required to add extra formats.\n");
+		goto out;
+	}
+
+	/*
+	 * The extra formats, emulated by the driver, go second.
+	 */
+
+	for (i = 0; (i < driver_nfourccs) && (fourccs < fourccs_end); ++i) {
+		u32 fourcc = driver_fourccs[i];
+
+		if (is_listed_fourcc(fourccs_out, fourccs - fourccs_out, fourcc)) {
+			continue; /* skip duplicate and native entries */
+		} else if (fourccs == fourccs_end) {
+			drm_warn(dev, "Ignoring emulated format %p4cc\n", &fourcc);
+			continue; /* end of available output buffer */
+		}
+
+		drm_dbg_kms(dev, "adding emulated format %p4cc\n", &fourcc);
+
+		*fourccs = fourcc;
+		++fourccs;
+	}
+
+out:
+	return fourccs - fourccs_out;
+}
+EXPORT_SYMBOL(drm_fb_build_fourcc_list);
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index 84abc3920b57..a6ac56580876 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -310,6 +310,24 @@ err_drm_dev_exit:
 }
 
 /**
+ * mipi_dbi_pipe_mode_valid - MIPI DBI mode-valid helper
+ * @pipe: Simple display pipe
+ * @mode: The mode to test
+ *
+ * This function validates a given display mode against the MIPI DBI's hardware
+ * display. Drivers can use this as their &drm_simple_display_pipe_funcs->mode_valid
+ * callback.
+ */
+enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
+					      const struct drm_display_mode *mode)
+{
+	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
+
+	return drm_crtc_helper_mode_valid_fixed(&pipe->crtc, mode, &dbidev->mode);
+}
+EXPORT_SYMBOL(mipi_dbi_pipe_mode_valid);
+
+/**
  * mipi_dbi_pipe_update - Display pipe update helper
  * @pipe: Simple display pipe
  * @old_state: Old plane state
@@ -415,26 +433,8 @@ EXPORT_SYMBOL(mipi_dbi_pipe_disable);
 static int mipi_dbi_connector_get_modes(struct drm_connector *connector)
 {
 	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(connector->dev);
-	struct drm_display_mode *mode;
-
-	mode = drm_mode_duplicate(connector->dev, &dbidev->mode);
-	if (!mode) {
-		DRM_ERROR("Failed to duplicate mode\n");
-		return 0;
-	}
-
-	if (mode->name[0] == '\0')
-		drm_mode_set_name(mode);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-	drm_mode_probed_add(connector, mode);
-
-	if (mode->width_mm) {
-		connector->display_info.width_mm = mode->width_mm;
-		connector->display_info.height_mm = mode->height_mm;
-	}
 
-	return 1;
+	return drm_connector_helper_get_modes_fixed(connector, &dbidev->mode);
 }
 
 static const struct drm_connector_helper_funcs mipi_dbi_connector_hfuncs = {
diff --git a/drivers/gpu/drm/drm_modeset_helper.c b/drivers/gpu/drm/drm_modeset_helper.c
index bd609a978848..f858dfedf2cf 100644
--- a/drivers/gpu/drm/drm_modeset_helper.c
+++ b/drivers/gpu/drm/drm_modeset_helper.c
@@ -100,8 +100,7 @@ EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct);
  * This is the minimal list of formats that seem to be safe for modeset use
  * with all current DRM drivers.  Most hardware can actually support more
  * formats than this and drivers may specify a more accurate list when
- * creating the primary plane.  However drivers that still call
- * drm_plane_init() will use this minimal format list as the default.
+ * creating the primary plane.
  */
 static const uint32_t safe_modeset_formats[] = {
 	DRM_FORMAT_XRGB8888,
@@ -109,43 +108,9 @@ static const uint32_t safe_modeset_formats[] = {
 };
 
 static const struct drm_plane_funcs primary_plane_funcs = {
-	.update_plane = drm_plane_helper_update_primary,
-	.disable_plane = drm_plane_helper_disable_primary,
-	.destroy = drm_plane_helper_destroy,
+	DRM_PLANE_NON_ATOMIC_FUNCS,
 };
 
-static struct drm_plane *create_primary_plane(struct drm_device *dev)
-{
-	struct drm_plane *primary;
-	int ret;
-
-	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
-	if (primary == NULL) {
-		DRM_DEBUG_KMS("Failed to allocate primary plane\n");
-		return NULL;
-	}
-
-	/*
-	 * Remove the format_default field from drm_plane when dropping
-	 * this helper.
-	 */
-	primary->format_default = true;
-
-	/* possible_crtc's will be filled in later by crtc_init */
-	ret = drm_universal_plane_init(dev, primary, 0,
-				       &primary_plane_funcs,
-				       safe_modeset_formats,
-				       ARRAY_SIZE(safe_modeset_formats),
-				       NULL,
-				       DRM_PLANE_TYPE_PRIMARY, NULL);
-	if (ret) {
-		kfree(primary);
-		primary = NULL;
-	}
-
-	return primary;
-}
-
 /**
  * drm_crtc_init - Legacy CRTC initialization function
  * @dev: DRM device
@@ -177,10 +142,33 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 		  const struct drm_crtc_funcs *funcs)
 {
 	struct drm_plane *primary;
+	int ret;
+
+	/* possible_crtc's will be filled in later by crtc_init */
+	primary = __drm_universal_plane_alloc(dev, sizeof(*primary), 0, 0,
+					      &primary_plane_funcs,
+					      safe_modeset_formats,
+					      ARRAY_SIZE(safe_modeset_formats),
+					      NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
+	if (IS_ERR(primary))
+		return PTR_ERR(primary);
 
-	primary = create_primary_plane(dev);
-	return drm_crtc_init_with_planes(dev, crtc, primary, NULL, funcs,
-					 NULL);
+	/*
+	 * Remove the format_default field from drm_plane when dropping
+	 * this helper.
+	 */
+	primary->format_default = true;
+
+	ret = drm_crtc_init_with_planes(dev, crtc, primary, NULL, funcs, NULL);
+	if (ret)
+		goto err_drm_plane_cleanup;
+
+	return 0;
+
+err_drm_plane_cleanup:
+	drm_plane_cleanup(primary);
+	kfree(primary);
+	return ret;
 }
 EXPORT_SYMBOL(drm_crtc_init);
 
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index fc1728d46ac2..8a0c0e0bb5bd 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -103,6 +103,12 @@ static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
+	.width = 1080,
+	.height = 1920,
+	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
+};
+
 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 	.width = 1200,
 	.height = 1920,
@@ -128,6 +134,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* Anbernic Win600 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
+		},
+		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* Asus T100HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@@ -152,6 +164,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* AYA NEO AIR */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
+		  DMI_MATCH(DMI_BOARD_NAME, "AIR"),
+		},
+		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* AYA NEO NEXT */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 726f2f163c26..33357629a7f5 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -448,6 +448,44 @@ void *__drmm_universal_plane_alloc(struct drm_device *dev, size_t size,
 }
 EXPORT_SYMBOL(__drmm_universal_plane_alloc);
 
+void *__drm_universal_plane_alloc(struct drm_device *dev, size_t size,
+				  size_t offset, uint32_t possible_crtcs,
+				  const struct drm_plane_funcs *funcs,
+				  const uint32_t *formats, unsigned int format_count,
+				  const uint64_t *format_modifiers,
+				  enum drm_plane_type type,
+				  const char *name, ...)
+{
+	void *container;
+	struct drm_plane *plane;
+	va_list ap;
+	int ret;
+
+	if (drm_WARN_ON(dev, !funcs))
+		return ERR_PTR(-EINVAL);
+
+	container = kzalloc(size, GFP_KERNEL);
+	if (!container)
+		return ERR_PTR(-ENOMEM);
+
+	plane = container + offset;
+
+	va_start(ap, name);
+	ret = __drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
+					 formats, format_count, format_modifiers,
+					 type, name, ap);
+	va_end(ap);
+	if (ret)
+		goto err_kfree;
+
+	return container;
+
+err_kfree:
+	kfree(container);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(__drm_universal_plane_alloc);
+
 int drm_plane_register_all(struct drm_device *dev)
 {
 	unsigned int num_planes = 0;
@@ -483,38 +521,6 @@ void drm_plane_unregister_all(struct drm_device *dev)
 }
 
 /**
- * drm_plane_init - Initialize a legacy plane
- * @dev: DRM device
- * @plane: plane object to init
- * @possible_crtcs: bitmask of possible CRTCs
- * @funcs: callbacks for the new plane
- * @formats: array of supported formats (DRM_FORMAT\_\*)
- * @format_count: number of elements in @formats
- * @is_primary: plane type (primary vs overlay)
- *
- * Legacy API to initialize a DRM plane.
- *
- * New drivers should call drm_universal_plane_init() instead.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
-		   uint32_t possible_crtcs,
-		   const struct drm_plane_funcs *funcs,
-		   const uint32_t *formats, unsigned int format_count,
-		   bool is_primary)
-{
-	enum drm_plane_type type;
-
-	type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
-	return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
-					formats, format_count,
-					NULL, type, NULL);
-}
-EXPORT_SYMBOL(drm_plane_init);
-
-/**
  * drm_plane_cleanup - Clean up the core plane usage
  * @plane: plane to cleanup
  *
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index c7785967f5bf..865bd999b187 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -30,8 +30,10 @@
 #include <drm/drm_atomic_uapi.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_device.h>
+#include <drm/drm_drv.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_plane_helper.h>
+#include <drm/drm_print.h>
 #include <drm/drm_rect.h>
 
 #define SUBPIXEL_MASK 0xffff
@@ -195,10 +197,14 @@ int drm_plane_helper_update_primary(struct drm_plane *plane, struct drm_crtc *cr
 		.x2 = crtc_x + crtc_w,
 		.y2 = crtc_y + crtc_h,
 	};
+	struct drm_device *dev = plane->dev;
 	struct drm_connector **connector_list;
 	int num_connectors, ret;
 	bool visible;
 
+	if (drm_WARN_ON_ONCE(dev, drm_drv_uses_atomic_modeset(dev)))
+		return -EINVAL;
+
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    &src, &dest,
 					    DRM_MODE_ROTATE_0,
@@ -260,6 +266,10 @@ EXPORT_SYMBOL(drm_plane_helper_update_primary);
 int drm_plane_helper_disable_primary(struct drm_plane *plane,
 				     struct drm_modeset_acquire_ctx *ctx)
 {
+	struct drm_device *dev = plane->dev;
+
+	drm_WARN_ON_ONCE(dev, drm_drv_uses_atomic_modeset(dev));
+
 	return -EINVAL;
 }
 EXPORT_SYMBOL(drm_plane_helper_disable_primary);
@@ -278,3 +288,33 @@ void drm_plane_helper_destroy(struct drm_plane *plane)
 	kfree(plane);
 }
 EXPORT_SYMBOL(drm_plane_helper_destroy);
+
+/**
+ * drm_plane_helper_atomic_check() - Helper to check plane atomic-state
+ * @plane: plane to check
+ * @state: atomic state object
+ *
+ * Provides a default plane-state check handler for planes whose atomic-state
+ * scale and positioning are not expected to change since the plane is always
+ * a fullscreen scanout buffer.
+ *
+ * This is often the case for the primary plane of simple framebuffers.
+ *
+ * RETURNS:
+ * Zero on success, or an errno code otherwise.
+ */
+int drm_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct drm_crtc *new_crtc = new_plane_state->crtc;
+	struct drm_crtc_state *new_crtc_state = NULL;
+
+	if (new_crtc)
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, new_crtc);
+
+	return drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
+						   DRM_PLANE_NO_SCALING,
+						   DRM_PLANE_NO_SCALING,
+						   false, false);
+}
+EXPORT_SYMBOL(drm_plane_helper_atomic_check);
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index bb427c5a4f1f..69b0b2b9cc1c 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -1015,6 +1015,30 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
 EXPORT_SYMBOL(drm_helper_hpd_irq_event);
 
 /**
+ * drm_crtc_helper_mode_valid_fixed - Validates a display mode
+ * @crtc: the crtc
+ * @mode: the mode to validate
+ * @fixed_mode: the display hardware's mode
+ *
+ * Returns:
+ * MODE_OK on success, or another mode-status code otherwise.
+ */
+enum drm_mode_status drm_crtc_helper_mode_valid_fixed(struct drm_crtc *crtc,
+						      const struct drm_display_mode *mode,
+						      const struct drm_display_mode *fixed_mode)
+{
+	if (mode->hdisplay != fixed_mode->hdisplay && mode->vdisplay != fixed_mode->vdisplay)
+		return MODE_ONE_SIZE;
+	else if (mode->hdisplay != fixed_mode->hdisplay)
+		return MODE_ONE_WIDTH;
+	else if (mode->vdisplay != fixed_mode->vdisplay)
+		return MODE_ONE_HEIGHT;
+
+	return MODE_OK;
+}
+EXPORT_SYMBOL(drm_crtc_helper_mode_valid_fixed);
+
+/**
  * drm_connector_helper_get_modes_from_ddc - Updates the connector's EDID
  *                                           property from the connector's
  *                                           DDC channel
@@ -1051,6 +1075,46 @@ int drm_connector_helper_get_modes_from_ddc(struct drm_connector *connector)
 EXPORT_SYMBOL(drm_connector_helper_get_modes_from_ddc);
 
 /**
+ * drm_connector_helper_get_modes_fixed - Duplicates a display mode for a connector
+ * @connector: the connector
+ * @fixed_mode: the display hardware's mode
+ *
+ * This function duplicates a display modes for a connector. Drivers for hardware
+ * that only supports a single fixed mode can use this function in their connector's
+ * get_modes helper.
+ *
+ * Returns:
+ * The number of created modes.
+ */
+int drm_connector_helper_get_modes_fixed(struct drm_connector *connector,
+					 const struct drm_display_mode *fixed_mode)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(dev, fixed_mode);
+	if (!mode) {
+		drm_err(dev, "Failed to duplicate mode " DRM_MODE_FMT "\n",
+			DRM_MODE_ARG(fixed_mode));
+		return 0;
+	}
+
+	if (mode->name[0] == '\0')
+		drm_mode_set_name(mode);
+
+	mode->type |= DRM_MODE_TYPE_PREFERRED;
+	drm_mode_probed_add(connector, mode);
+
+	if (mode->width_mm)
+		connector->display_info.width_mm = mode->width_mm;
+	if (mode->height_mm)
+		connector->display_info.height_mm = mode->height_mm;
+
+	return 1;
+}
+EXPORT_SYMBOL(drm_connector_helper_get_modes_fixed);
+
+/**
  * drm_connector_helper_get_modes - Read EDID and update connector.
  * @connector: The connector
  *
diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index 0cff20265f97..807b989e3c77 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -7,6 +7,8 @@ config DRM_GMA500
 	select ACPI_VIDEO if ACPI
 	select BACKLIGHT_CLASS_DEVICE if ACPI
 	select INPUT if ACPI
+	select X86_PLATFORM_DEVICES if ACPI
+	select ACPI_WMI if ACPI
 	help
 	  Say yes for an experimental 2D KMS framebuffer driver for the
 	  Intel GMA500 (Poulsbo), Intel GMA600 (Moorestown/Oak Trail) and
diff --git a/drivers/gpu/drm/gma500/backlight.c b/drivers/gpu/drm/gma500/backlight.c
index 46b9c0f13d6d..577a4987b193 100644
--- a/drivers/gpu/drm/gma500/backlight.c
+++ b/drivers/gpu/drm/gma500/backlight.c
@@ -7,75 +7,109 @@
  * Authors: Eric Knopp
  */
 
+#include <acpi/video.h>
+
 #include "psb_drv.h"
 #include "psb_intel_reg.h"
 #include "psb_intel_drv.h"
 #include "intel_bios.h"
 #include "power.h"
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-static void do_gma_backlight_set(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	backlight_update_status(dev_priv->backlight_device);
-}
-#endif
-
 void gma_backlight_enable(struct drm_device *dev)
 {
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+
 	dev_priv->backlight_enabled = true;
-	if (dev_priv->backlight_device) {
-		dev_priv->backlight_device->props.brightness = dev_priv->backlight_level;
-		do_gma_backlight_set(dev);
-	}
-#endif	
+	dev_priv->ops->backlight_set(dev, dev_priv->backlight_level);
 }
 
 void gma_backlight_disable(struct drm_device *dev)
 {
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+
 	dev_priv->backlight_enabled = false;
-	if (dev_priv->backlight_device) {
-		dev_priv->backlight_device->props.brightness = 0;
-		do_gma_backlight_set(dev);
-	}
-#endif
+	dev_priv->ops->backlight_set(dev, 0);
 }
 
 void gma_backlight_set(struct drm_device *dev, int v)
 {
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+
 	dev_priv->backlight_level = v;
-	if (dev_priv->backlight_device && dev_priv->backlight_enabled) {
-		dev_priv->backlight_device->props.brightness = v;
-		do_gma_backlight_set(dev);
-	}
-#endif
+	if (dev_priv->backlight_enabled)
+		dev_priv->ops->backlight_set(dev, v);
+}
+
+static int gma_backlight_get_brightness(struct backlight_device *bd)
+{
+	struct drm_device *dev = bl_get_data(bd);
+	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+
+	if (dev_priv->ops->backlight_get)
+		return dev_priv->ops->backlight_get(dev);
+
+	return dev_priv->backlight_level;
 }
 
+static int gma_backlight_update_status(struct backlight_device *bd)
+{
+	struct drm_device *dev = bl_get_data(bd);
+	int level = backlight_get_brightness(bd);
+
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
+
+	gma_backlight_set(dev, level);
+	return 0;
+}
+
+static const struct backlight_ops gma_backlight_ops __maybe_unused = {
+	.get_brightness = gma_backlight_get_brightness,
+	.update_status  = gma_backlight_update_status,
+};
+
 int gma_backlight_init(struct drm_device *dev)
 {
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+	struct backlight_properties props __maybe_unused = {};
+	int ret;
+
 	dev_priv->backlight_enabled = true;
-	return dev_priv->ops->backlight_init(dev);
-#else
-	return 0;
+	dev_priv->backlight_level = 100;
+
+	ret = dev_priv->ops->backlight_init(dev);
+	if (ret)
+		return ret;
+
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(dev, "Skipping %s backlight registration\n",
+			 dev_priv->ops->backlight_name);
+		return 0;
+	}
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	props.brightness = dev_priv->backlight_level;
+	props.max_brightness = PSB_MAX_BRIGHTNESS;
+	props.type = BACKLIGHT_RAW;
+
+	dev_priv->backlight_device =
+		backlight_device_register(dev_priv->ops->backlight_name,
+					  dev->dev, dev,
+					  &gma_backlight_ops, &props);
+	if (IS_ERR(dev_priv->backlight_device))
+		return PTR_ERR(dev_priv->backlight_device);
 #endif
+
+	return 0;
 }
 
 void gma_backlight_exit(struct drm_device *dev)
 {
 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	if (dev_priv->backlight_device) {
-		dev_priv->backlight_device->props.brightness = 0;
-		backlight_update_status(dev_priv->backlight_device);
+
+	if (dev_priv->backlight_device)
 		backlight_device_unregister(dev_priv->backlight_device);
-	}
 #endif
 }
diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index dd32b484dd82..3065596257e9 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -5,7 +5,6 @@
  *
  **************************************************************************/
 
-#include <linux/backlight.h>
 #include <linux/delay.h>
 
 #include <drm/drm.h>
@@ -62,14 +61,10 @@ static int cdv_output_init(struct drm_device *dev)
 	return 0;
 }
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-
 /*
  *	Cedartrail Backlght Interfaces
  */
 
-static struct backlight_device *cdv_backlight_device;
-
 static int cdv_backlight_combination_mode(struct drm_device *dev)
 {
 	return REG_READ(BLC_PWM_CTL2) & PWM_LEGACY_MODE;
@@ -92,9 +87,8 @@ static u32 cdv_get_max_backlight(struct drm_device *dev)
 	return max;
 }
 
-static int cdv_get_brightness(struct backlight_device *bd)
+static int cdv_get_brightness(struct drm_device *dev)
 {
-	struct drm_device *dev = bl_get_data(bd);
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
 
@@ -106,20 +100,13 @@ static int cdv_get_brightness(struct backlight_device *bd)
 		val *= lbpc;
 	}
 	return (val * 100)/cdv_get_max_backlight(dev);
-
 }
 
-static int cdv_set_brightness(struct backlight_device *bd)
+static void cdv_set_brightness(struct drm_device *dev, int level)
 {
-	struct drm_device *dev = bl_get_data(bd);
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	int level = bd->props.brightness;
 	u32 blc_pwm_ctl;
 
-	/* Percentage 1-100% being valid */
-	if (level < 1)
-		level = 1;
-
 	level *= cdv_get_max_backlight(dev);
 	level /= 100;
 
@@ -136,38 +123,18 @@ static int cdv_set_brightness(struct backlight_device *bd)
 	blc_pwm_ctl = REG_READ(BLC_PWM_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
 	REG_WRITE(BLC_PWM_CTL, (blc_pwm_ctl |
 				(level << BACKLIGHT_DUTY_CYCLE_SHIFT)));
-	return 0;
 }
 
-static const struct backlight_ops cdv_ops = {
-	.get_brightness = cdv_get_brightness,
-	.update_status  = cdv_set_brightness,
-};
-
 static int cdv_backlight_init(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	struct backlight_properties props;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = 100;
-	props.type = BACKLIGHT_PLATFORM;
-
-	cdv_backlight_device = backlight_device_register("psb-bl",
-					NULL, (void *)dev, &cdv_ops, &props);
-	if (IS_ERR(cdv_backlight_device))
-		return PTR_ERR(cdv_backlight_device);
-
-	cdv_backlight_device->props.brightness =
-			cdv_get_brightness(cdv_backlight_device);
-	backlight_update_status(cdv_backlight_device);
-	dev_priv->backlight_device = cdv_backlight_device;
-	dev_priv->backlight_enabled = true;
+
+	dev_priv->backlight_level = cdv_get_brightness(dev);
+	cdv_set_brightness(dev, dev_priv->backlight_level);
+
 	return 0;
 }
 
-#endif
-
 /*
  *	Provide the Cedarview specific chip logic and low level methods
  *	for power management
@@ -581,11 +548,9 @@ static const struct psb_offset cdv_regmap[2] = {
 static int cdv_chip_setup(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	INIT_WORK(&dev_priv->hotplug_work, cdv_hotplug_work_func);
 
-	if (pci_enable_msi(pdev))
-		dev_warn(dev->dev, "Enabling MSI failed!\n");
+	dev_priv->use_msi = true;
 	dev_priv->regmap = cdv_regmap;
 	gma_get_core_freq(dev);
 	psb_intel_opregion_init(dev);
@@ -615,9 +580,10 @@ const struct psb_ops cdv_chip_ops = {
 	.hotplug = cdv_hotplug_event,
 	.hotplug_enable = cdv_hotplug_enable,
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	.backlight_init = cdv_backlight_init,
-#endif
+	.backlight_get = cdv_get_brightness,
+	.backlight_set = cdv_set_brightness,
+	.backlight_name = "psb-bl",
 
 	.init_pm = cdv_init_pm,
 	.save_regs = cdv_save_display_registers,
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index bd40c040a2c9..b0ea911b27de 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -552,28 +552,11 @@ int gma_crtc_page_flip(struct drm_crtc *crtc,
 	return ret;
 }
 
-int gma_crtc_set_config(struct drm_mode_set *set,
-			struct drm_modeset_acquire_ctx *ctx)
-{
-	struct drm_device *dev = set->crtc->dev;
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	int ret;
-
-	if (!dev_priv->rpm_enabled)
-		return drm_crtc_helper_set_config(set, ctx);
-
-	pm_runtime_forbid(dev->dev);
-	ret = drm_crtc_helper_set_config(set, ctx);
-	pm_runtime_allow(dev->dev);
-
-	return ret;
-}
-
 const struct drm_crtc_funcs gma_crtc_funcs = {
 	.cursor_set = gma_crtc_cursor_set,
 	.cursor_move = gma_crtc_cursor_move,
 	.gamma_set = gma_crtc_gamma_set,
-	.set_config = gma_crtc_set_config,
+	.set_config = drm_crtc_helper_set_config,
 	.destroy = gma_crtc_destroy,
 	.page_flip = gma_crtc_page_flip,
 	.enable_vblank = gma_crtc_enable_vblank,
diff --git a/drivers/gpu/drm/gma500/gma_display.h b/drivers/gpu/drm/gma500/gma_display.h
index 113cf048105e..c8b611a2f6c6 100644
--- a/drivers/gpu/drm/gma500/gma_display.h
+++ b/drivers/gpu/drm/gma500/gma_display.h
@@ -69,8 +69,6 @@ extern int gma_crtc_page_flip(struct drm_crtc *crtc,
 			      struct drm_pending_vblank_event *event,
 			      uint32_t page_flip_flags,
 			      struct drm_modeset_acquire_ctx *ctx);
-extern int gma_crtc_set_config(struct drm_mode_set *set,
-			       struct drm_modeset_acquire_ctx *ctx);
 
 extern void gma_crtc_save(struct drm_crtc *crtc);
 extern void gma_crtc_restore(struct drm_crtc *crtc);
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index 5923a9c89312..2531959d3d77 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -5,7 +5,6 @@
  *
  **************************************************************************/
 
-#include <linux/backlight.h>
 #include <linux/delay.h>
 #include <linux/dmi.h>
 #include <linux/module.h>
@@ -37,29 +36,18 @@ static int oaktrail_output_init(struct drm_device *dev)
  *	Provide the low level interfaces for the Moorestown backlight
  */
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-
 #define MRST_BLC_MAX_PWM_REG_FREQ	    0xFFFF
 #define BLC_PWM_PRECISION_FACTOR 100	/* 10000000 */
 #define BLC_PWM_FREQ_CALC_CONSTANT 32
 #define MHz 1000000
 #define BLC_ADJUSTMENT_MAX 100
 
-static struct backlight_device *oaktrail_backlight_device;
-static int oaktrail_brightness;
-
-static int oaktrail_set_brightness(struct backlight_device *bd)
+static void oaktrail_set_brightness(struct drm_device *dev, int level)
 {
-	struct drm_device *dev = bl_get_data(oaktrail_backlight_device);
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	int level = bd->props.brightness;
 	u32 blc_pwm_ctl;
 	u32 max_pwm_blc;
 
-	/* Percentage 1-100% being valid */
-	if (level < 1)
-		level = 1;
-
 	if (gma_power_begin(dev, 0)) {
 		/* Calculate and set the brightness value */
 		max_pwm_blc = REG_READ(BLC_PWM_CTL) >> 16;
@@ -82,19 +70,9 @@ static int oaktrail_set_brightness(struct backlight_device *bd)
 		REG_WRITE(BLC_PWM_CTL, (max_pwm_blc << 16) | blc_pwm_ctl);
 		gma_power_end(dev);
 	}
-	oaktrail_brightness = level;
-	return 0;
-}
-
-static int oaktrail_get_brightness(struct backlight_device *bd)
-{
-	/* return locally cached var instead of HW read (due to DPST etc.) */
-	/* FIXME: ideally return actual value in case firmware fiddled with
-	   it */
-	return oaktrail_brightness;
 }
 
-static int device_backlight_init(struct drm_device *dev)
+static int oaktrail_backlight_init(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 	unsigned long core_clock;
@@ -123,44 +101,11 @@ static int device_backlight_init(struct drm_device *dev)
 		REG_WRITE(BLC_PWM_CTL, value | (value << 16));
 		gma_power_end(dev);
 	}
-	return 0;
-}
-
-static const struct backlight_ops oaktrail_ops = {
-	.get_brightness = oaktrail_get_brightness,
-	.update_status  = oaktrail_set_brightness,
-};
 
-static int oaktrail_backlight_init(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	int ret;
-	struct backlight_properties props;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = 100;
-	props.type = BACKLIGHT_PLATFORM;
-
-	oaktrail_backlight_device = backlight_device_register("oaktrail-bl",
-				NULL, (void *)dev, &oaktrail_ops, &props);
-
-	if (IS_ERR(oaktrail_backlight_device))
-		return PTR_ERR(oaktrail_backlight_device);
-
-	ret = device_backlight_init(dev);
-	if (ret < 0) {
-		backlight_device_unregister(oaktrail_backlight_device);
-		return ret;
-	}
-	oaktrail_backlight_device->props.brightness = 100;
-	oaktrail_backlight_device->props.max_brightness = 100;
-	backlight_update_status(oaktrail_backlight_device);
-	dev_priv->backlight_device = oaktrail_backlight_device;
+	oaktrail_set_brightness(dev, PSB_MAX_BRIGHTNESS);
 	return 0;
 }
 
-#endif
-
 /*
  *	Provide the Moorestown specific chip logic and low level methods
  *	for power management
@@ -501,12 +446,9 @@ static const struct psb_offset oaktrail_regmap[2] = {
 static int oaktrail_chip_setup(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	int ret;
 
-	if (pci_enable_msi(pdev))
-		dev_warn(dev->dev, "Enabling MSI failed!\n");
-
+	dev_priv->use_msi = true;
 	dev_priv->regmap = oaktrail_regmap;
 
 	ret = mid_chip_setup(dev);
@@ -548,9 +490,9 @@ const struct psb_ops oaktrail_chip_ops = {
 
 	.output_init = oaktrail_output_init,
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 	.backlight_init = oaktrail_backlight_init,
-#endif
+	.backlight_set = oaktrail_set_brightness,
+	.backlight_name = "oaktrail-bl",
 
 	.save_regs = oaktrail_save_display_registers,
 	.restore_regs = oaktrail_restore_display_registers,
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 4d98df189e10..75b4eb1c8884 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -61,7 +61,6 @@ static void oaktrail_lvds_set_power(struct drm_device *dev,
 			pp_status = REG_READ(PP_STATUS);
 		} while (pp_status & PP_ON);
 		dev_priv->is_lvds_on = false;
-		pm_request_idle(dev->dev);
 	}
 	gma_power_end(dev);
 }
diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
index dc494df71a48..0c271072af63 100644
--- a/drivers/gpu/drm/gma500/opregion.c
+++ b/drivers/gpu/drm/gma500/opregion.c
@@ -150,21 +150,17 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 	struct opregion_asle *asle = dev_priv->opregion.asle;
-	struct backlight_device *bd = dev_priv->backlight_device;
 
 	DRM_DEBUG_DRIVER("asle set backlight %x\n", bclp);
 
 	if (!(bclp & ASLE_BCLP_VALID))
 		return ASLE_BACKLIGHT_FAILED;
 
-	if (bd == NULL)
-		return ASLE_BACKLIGHT_FAILED;
-
 	bclp &= ASLE_BCLP_MSK;
 	if (bclp > 255)
 		return ASLE_BACKLIGHT_FAILED;
 
-	gma_backlight_set(dev, bclp * bd->props.max_brightness / 255);
+	gma_backlight_set(dev, bclp * PSB_MAX_BRIGHTNESS / 255);
 
 	asle->cblv = (bclp * 0x64) / 0xff | ASLE_CBLV_VALID;
 
diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c
index b91de6d36e41..186af29bea6f 100644
--- a/drivers/gpu/drm/gma500/power.c
+++ b/drivers/gpu/drm/gma500/power.c
@@ -37,9 +37,6 @@
 #include <linux/mutex.h>
 #include <linux/pm_runtime.h>
 
-static struct mutex power_mutex;	/* Serialize power ops */
-static DEFINE_SPINLOCK(power_ctrl_lock);	/* Serialize power claim */
-
 /**
  *	gma_power_init		-	initialise power manager
  *	@dev: our device
@@ -54,13 +51,23 @@ void gma_power_init(struct drm_device *dev)
 	dev_priv->apm_base = dev_priv->apm_reg & 0xffff;
 	dev_priv->ospm_base &= 0xffff;
 
-	dev_priv->display_power = true;	/* We start active */
-	dev_priv->display_count = 0;	/* Currently no users */
-	dev_priv->suspended = false;	/* And not suspended */
-	mutex_init(&power_mutex);
-
 	if (dev_priv->ops->init_pm)
 		dev_priv->ops->init_pm(dev);
+
+	/*
+	 * Runtime pm support is broken atm. So for now unconditionally
+	 * call pm_runtime_get() here and put it again in psb_driver_unload()
+	 *
+	 * To fix this we need to call pm_runtime_get() once for each active
+	 * pipe at boot and then put() / get() for each pipe disable / enable
+	 * so that the device gets runtime suspended when no pipes are active.
+	 * Once this is in place the pm_runtime_get() below should be replaced
+	 * by a pm_runtime_allow() call to undo the pm_runtime_forbid() from
+	 * pci_pm_init().
+	 */
+	pm_runtime_get(dev->dev);
+
+	dev_priv->pm_initialized = true;
 }
 
 /**
@@ -71,8 +78,12 @@ void gma_power_init(struct drm_device *dev)
  */
 void gma_power_uninit(struct drm_device *dev)
 {
-	pm_runtime_disable(dev->dev);
-	pm_runtime_set_suspended(dev->dev);
+	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+
+	if (!dev_priv->pm_initialized)
+		return;
+
+	pm_runtime_put_noidle(dev->dev);
 }
 
 /**
@@ -85,11 +96,8 @@ static void gma_suspend_display(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 
-	if (dev_priv->suspended)
-		return;
 	dev_priv->ops->save_regs(dev);
 	dev_priv->ops->power_down(dev);
-	dev_priv->display_power = false;
 }
 
 /**
@@ -106,8 +114,6 @@ static void gma_resume_display(struct pci_dev *pdev)
 
 	/* turn on the display power island */
 	dev_priv->ops->power_up(dev);
-	dev_priv->suspended = false;
-	dev_priv->display_power = true;
 
 	PSB_WVDC32(dev_priv->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
 	pci_write_config_word(pdev, PSB_GMCH_CTRL,
@@ -131,21 +137,14 @@ static void gma_suspend_pci(struct pci_dev *pdev)
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 	int bsm, vbt;
 
-	if (dev_priv->suspended)
-		return;
-
 	pci_save_state(pdev);
 	pci_read_config_dword(pdev, 0x5C, &bsm);
 	dev_priv->regs.saveBSM = bsm;
 	pci_read_config_dword(pdev, 0xFC, &vbt);
 	dev_priv->regs.saveVBT = vbt;
-	pci_read_config_dword(pdev, PSB_PCIx_MSI_ADDR_LOC, &dev_priv->msi_addr);
-	pci_read_config_dword(pdev, PSB_PCIx_MSI_DATA_LOC, &dev_priv->msi_data);
 
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
-
-	dev_priv->suspended = true;
 }
 
 /**
@@ -155,29 +154,17 @@ static void gma_suspend_pci(struct pci_dev *pdev)
  *	Perform the resume processing on our PCI device state - rewrite
  *	register state and re-enable the PCI device
  */
-static bool gma_resume_pci(struct pci_dev *pdev)
+static int gma_resume_pci(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	int ret;
-
-	if (!dev_priv->suspended)
-		return true;
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 	pci_write_config_dword(pdev, 0x5c, dev_priv->regs.saveBSM);
 	pci_write_config_dword(pdev, 0xFC, dev_priv->regs.saveVBT);
-	/* restoring MSI address and data in PCIx space */
-	pci_write_config_dword(pdev, PSB_PCIx_MSI_ADDR_LOC, dev_priv->msi_addr);
-	pci_write_config_dword(pdev, PSB_PCIx_MSI_DATA_LOC, dev_priv->msi_data);
-	ret = pci_enable_device(pdev);
 
-	if (ret != 0)
-		dev_err(&pdev->dev, "pci_enable failed: %d\n", ret);
-	else
-		dev_priv->suspended = false;
-	return !dev_priv->suspended;
+	return pci_enable_device(pdev);
 }
 
 /**
@@ -192,20 +179,10 @@ int gma_power_suspend(struct device *_dev)
 {
 	struct pci_dev *pdev = to_pci_dev(_dev);
 	struct drm_device *dev = pci_get_drvdata(pdev);
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 
-	mutex_lock(&power_mutex);
-	if (!dev_priv->suspended) {
-		if (dev_priv->display_count) {
-			mutex_unlock(&power_mutex);
-			dev_err(dev->dev, "GPU hardware busy, cannot suspend\n");
-			return -EBUSY;
-		}
-		gma_irq_uninstall(dev);
-		gma_suspend_display(dev);
-		gma_suspend_pci(pdev);
-	}
-	mutex_unlock(&power_mutex);
+	gma_irq_uninstall(dev);
+	gma_suspend_display(dev);
+	gma_suspend_pci(pdev);
 	return 0;
 }
 
@@ -220,28 +197,13 @@ int gma_power_resume(struct device *_dev)
 	struct pci_dev *pdev = to_pci_dev(_dev);
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
-	mutex_lock(&power_mutex);
 	gma_resume_pci(pdev);
 	gma_resume_display(pdev);
-	gma_irq_preinstall(dev);
-	gma_irq_postinstall(dev);
-	mutex_unlock(&power_mutex);
+	gma_irq_install(dev);
 	return 0;
 }
 
 /**
- *	gma_power_is_on		-	returne true if power is on
- *	@dev: our DRM device
- *
- *	Returns true if the display island power is on at this moment
- */
-bool gma_power_is_on(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	return dev_priv->display_power;
-}
-
-/**
  *	gma_power_begin		-	begin requiring power
  *	@dev: our DRM device
  *	@force_on: true to force power on
@@ -251,35 +213,10 @@ bool gma_power_is_on(struct drm_device *dev)
  */
 bool gma_power_begin(struct drm_device *dev, bool force_on)
 {
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	int ret;
-	unsigned long flags;
-
-	spin_lock_irqsave(&power_ctrl_lock, flags);
-	/* Power already on ? */
-	if (dev_priv->display_power) {
-		dev_priv->display_count++;
-		pm_runtime_get(dev->dev);
-		spin_unlock_irqrestore(&power_ctrl_lock, flags);
-		return true;
-	}
-	if (force_on == false)
-		goto out_false;
-
-	/* Ok power up needed */
-	ret = gma_resume_pci(pdev);
-	if (ret == 0) {
-		gma_irq_preinstall(dev);
-		gma_irq_postinstall(dev);
-		pm_runtime_get(dev->dev);
-		dev_priv->display_count++;
-		spin_unlock_irqrestore(&power_ctrl_lock, flags);
-		return true;
-	}
-out_false:
-	spin_unlock_irqrestore(&power_ctrl_lock, flags);
-	return false;
+	if (force_on)
+		return pm_runtime_resume_and_get(dev->dev) == 0;
+	else
+		return pm_runtime_get_if_in_use(dev->dev) == 1;
 }
 
 /**
@@ -291,46 +228,5 @@ out_false:
  */
 void gma_power_end(struct drm_device *dev)
 {
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	unsigned long flags;
-	spin_lock_irqsave(&power_ctrl_lock, flags);
-	dev_priv->display_count--;
-	WARN_ON(dev_priv->display_count < 0);
-	spin_unlock_irqrestore(&power_ctrl_lock, flags);
 	pm_runtime_put(dev->dev);
 }
-
-int psb_runtime_suspend(struct device *dev)
-{
-	return gma_power_suspend(dev);
-}
-
-int psb_runtime_resume(struct device *dev)
-{
-	return gma_power_resume(dev);
-}
-
-int psb_runtime_idle(struct device *dev)
-{
-	struct drm_device *drmdev = pci_get_drvdata(to_pci_dev(dev));
-	struct drm_psb_private *dev_priv = to_drm_psb_private(drmdev);
-	if (dev_priv->display_count)
-		return 0;
-	else
-		return 1;
-}
-
-int gma_power_thaw(struct device *_dev)
-{
-	return gma_power_resume(_dev);
-}
-
-int gma_power_freeze(struct device *_dev)
-{
-	return gma_power_suspend(_dev);
-}
-
-int gma_power_restore(struct device *_dev)
-{
-	return gma_power_resume(_dev);
-}
diff --git a/drivers/gpu/drm/gma500/power.h b/drivers/gpu/drm/gma500/power.h
index 0c89c4d6ec20..063328d66652 100644
--- a/drivers/gpu/drm/gma500/power.h
+++ b/drivers/gpu/drm/gma500/power.h
@@ -43,9 +43,6 @@ void gma_power_uninit(struct drm_device *dev);
  */
 int gma_power_suspend(struct device *dev);
 int gma_power_resume(struct device *dev);
-int gma_power_thaw(struct device *dev);
-int gma_power_freeze(struct device *dev);
-int gma_power_restore(struct device *_dev);
 
 /*
  * These are the functions the driver should use to wrap all hw access
@@ -54,19 +51,4 @@ int gma_power_restore(struct device *_dev);
 bool gma_power_begin(struct drm_device *dev, bool force);
 void gma_power_end(struct drm_device *dev);
 
-/*
- * Use this function to do an instantaneous check for if the hw is on.
- * Only use this in cases where you know the mutex is already held such
- * as in irq install/uninstall and you need to
- * prevent a deadlock situation.  Otherwise use gma_power_begin().
- */
-bool gma_power_is_on(struct drm_device *dev);
-
-/*
- * GFX-Runtime PM callbacks
- */
-int psb_runtime_suspend(struct device *dev);
-int psb_runtime_resume(struct device *dev);
-int psb_runtime_idle(struct device *dev);
-
 #endif /*_PSB_POWERMGMT_H_*/
diff --git a/drivers/gpu/drm/gma500/psb_device.c b/drivers/gpu/drm/gma500/psb_device.c
index 71534f4ca834..3c294c38bdb4 100644
--- a/drivers/gpu/drm/gma500/psb_device.c
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -5,8 +5,6 @@
  *
  **************************************************************************/
 
-#include <linux/backlight.h>
-
 #include <drm/drm.h>
 
 #include "gma_device.h"
@@ -24,8 +22,6 @@ static int psb_output_init(struct drm_device *dev)
 	return 0;
 }
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-
 /*
  *	Poulsbo Backlight Interfaces
  */
@@ -41,18 +37,6 @@ static int psb_output_init(struct drm_device *dev)
 #define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
 #define PSB_BACKLIGHT_PWM_CTL_SHIFT	(16)
 
-static int psb_brightness;
-static struct backlight_device *psb_backlight_device;
-
-static int psb_get_brightness(struct backlight_device *bd)
-{
-	/* return locally cached var instead of HW read (due to DPST etc.) */
-	/* FIXME: ideally return actual value in case firmware fiddled with
-	   it */
-	return psb_brightness;
-}
-
-
 static int psb_backlight_setup(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
@@ -86,62 +70,13 @@ static int psb_backlight_setup(struct drm_device *dev)
 		REG_WRITE(BLC_PWM_CTL,
 			(value << PSB_BACKLIGHT_PWM_CTL_SHIFT) | (value));
 	}
-	return 0;
-}
-
-static int psb_set_brightness(struct backlight_device *bd)
-{
-	struct drm_device *dev = bl_get_data(psb_backlight_device);
-	int level = bd->props.brightness;
-
-	/* Percentage 1-100% being valid */
-	if (level < 1)
-		level = 1;
-
-	psb_intel_lvds_set_brightness(dev, level);
-	psb_brightness = level;
-	return 0;
-}
-
-static const struct backlight_ops psb_ops = {
-	.get_brightness = psb_get_brightness,
-	.update_status  = psb_set_brightness,
-};
-
-static int psb_backlight_init(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	int ret;
-	struct backlight_properties props;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = 100;
-	props.type = BACKLIGHT_PLATFORM;
-
-	psb_backlight_device = backlight_device_register("psb-bl",
-					NULL, (void *)dev, &psb_ops, &props);
-	if (IS_ERR(psb_backlight_device))
-		return PTR_ERR(psb_backlight_device);
-
-	ret = psb_backlight_setup(dev);
-	if (ret < 0) {
-		backlight_device_unregister(psb_backlight_device);
-		psb_backlight_device = NULL;
-		return ret;
-	}
-	psb_backlight_device->props.brightness = 100;
-	psb_backlight_device->props.max_brightness = 100;
-	backlight_update_status(psb_backlight_device);
-	dev_priv->backlight_device = psb_backlight_device;
 
+	psb_intel_lvds_set_brightness(dev, PSB_MAX_BRIGHTNESS);
 	/* This must occur after the backlight is properly initialised */
 	psb_lid_timer_init(dev_priv);
-
 	return 0;
 }
 
-#endif
-
 /*
  *	Provide the Poulsbo specific chip logic and low level methods
  *	for power management
@@ -345,9 +280,9 @@ const struct psb_ops psb_chip_ops = {
 
 	.output_init = psb_output_init,
 
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-	.backlight_init = psb_backlight_init,
-#endif
+	.backlight_init = psb_backlight_setup,
+	.backlight_set = psb_intel_lvds_set_brightness,
+	.backlight_name = "psb-bl",
 
 	.init_pm = psb_init_pm,
 	.save_regs = psb_save_display_registers,
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 1d8744f3e702..cd9c73f5a64a 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -169,8 +169,7 @@ static void psb_driver_unload(struct drm_device *dev)
 
 	/* TODO: Kill vblank etc here */
 
-	if (dev_priv->backlight_device)
-		gma_backlight_exit(dev);
+	gma_backlight_exit(dev);
 	psb_modeset_cleanup(dev);
 
 	gma_irq_uninstall(dev);
@@ -383,7 +382,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 	PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 
-	gma_irq_install(dev, pdev->irq);
+	gma_irq_install(dev);
 
 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
 
@@ -399,6 +398,8 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 		if (gma_encoder->type == INTEL_OUTPUT_LVDS ||
 		    gma_encoder->type == INTEL_OUTPUT_MIPI) {
 			ret = gma_backlight_init(dev);
+			if (ret == 0)
+				acpi_video_register_backlight();
 			break;
 		}
 	}
@@ -407,11 +408,6 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 	if (ret)
 		return ret;
 	psb_intel_opregion_enable_asle(dev);
-#if 0
-	/* Enable runtime pm at last */
-	pm_runtime_enable(dev->dev);
-	pm_runtime_set_active(dev->dev);
-#endif
 
 	return devm_add_action_or_reset(dev->dev, psb_device_release, dev);
 
@@ -420,33 +416,6 @@ out_err:
 	return ret;
 }
 
-static inline void get_brightness(struct backlight_device *bd)
-{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-	if (bd) {
-		bd->props.brightness = bd->ops->get_brightness(bd);
-		backlight_update_status(bd);
-	}
-#endif
-}
-
-static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
-			       unsigned long arg)
-{
-	struct drm_file *file_priv = filp->private_data;
-	struct drm_device *dev = file_priv->minor->dev;
-	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-	static unsigned int runtime_allowed;
-
-	if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
-		runtime_allowed++;
-		pm_runtime_allow(dev->dev);
-		dev_priv->rpm_enabled = 1;
-	}
-	return drm_ioctl(filp, cmd, arg);
-	/* FIXME: do we need to wrap the other side of this */
-}
-
 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	struct drm_psb_private *dev_priv;
@@ -493,22 +462,13 @@ static void psb_pci_remove(struct pci_dev *pdev)
 	drm_dev_unregister(dev);
 }
 
-static const struct dev_pm_ops psb_pm_ops = {
-	.resume = gma_power_resume,
-	.suspend = gma_power_suspend,
-	.thaw = gma_power_thaw,
-	.freeze = gma_power_freeze,
-	.restore = gma_power_restore,
-	.runtime_suspend = psb_runtime_suspend,
-	.runtime_resume = psb_runtime_resume,
-	.runtime_idle = psb_runtime_idle,
-};
+static DEFINE_RUNTIME_DEV_PM_OPS(psb_pm_ops, gma_power_suspend, gma_power_resume, NULL);
 
 static const struct file_operations psb_gem_fops = {
 	.owner = THIS_MODULE,
 	.open = drm_open,
 	.release = drm_release,
-	.unlocked_ioctl = psb_unlocked_ioctl,
+	.unlocked_ioctl = drm_ioctl,
 	.compat_ioctl = drm_compat_ioctl,
 	.mmap = drm_gem_mmap,
 	.poll = drm_poll,
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 0ea3d23575f3..ae544b69fc47 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -172,6 +172,8 @@
 #define PSB_WATCHDOG_DELAY (HZ * 2)
 #define PSB_LID_DELAY (HZ / 10)
 
+#define PSB_MAX_BRIGHTNESS		100
+
 #define PSB_PWR_STATE_ON		1
 #define PSB_PWR_STATE_OFF		2
 
@@ -426,9 +428,7 @@ struct drm_psb_private {
 	spinlock_t irqmask_lock;
 
 	/* Power */
-	bool suspended;
-	bool display_power;
-	int display_count;
+	bool pm_initialized;
 
 	/* Modesetting */
 	struct psb_intel_mode_device mode_dev;
@@ -486,10 +486,8 @@ struct drm_psb_private {
 	unsigned int core_freq;
 	uint32_t iLVDS_enable;
 
-	/* Runtime PM state */
-	int rpm_enabled;
-
 	/* MID specific */
+	bool use_msi;
 	bool has_gct;
 	struct oaktrail_gct_data gct_data;
 
@@ -499,10 +497,6 @@ struct drm_psb_private {
 	/* Register state */
 	struct psb_save_area regs;
 
-	/* MSI reg save */
-	uint32_t msi_addr;
-	uint32_t msi_data;
-
 	/* Hotplug handling */
 	struct work_struct hotplug_work;
 
@@ -530,10 +524,6 @@ struct drm_psb_private {
 
 	struct drm_fb_helper *fb_helper;
 
-	/* Panel brightness */
-	int brightness;
-	int brightness_adjusted;
-
 	bool dsr_enable;
 	u32 dsr_fb_update;
 	bool dpi_panel_on[3];
@@ -602,10 +592,13 @@ struct psb_ops {
 	void (*disable_sr)(struct drm_device *dev);
 
 	void (*lvds_bl_power)(struct drm_device *dev, bool on);
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+
 	/* Backlight */
 	int (*backlight_init)(struct drm_device *dev);
-#endif
+	void (*backlight_set)(struct drm_device *dev, int level);
+	int (*backlight_get)(struct drm_device *dev);
+	const char *backlight_name;
+
 	int i2c_bus;		/* I2C bus identifier for Moorestown */
 };
 
diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h
index 8ccba116821b..8a1111fe714b 100644
--- a/drivers/gpu/drm/gma500/psb_intel_drv.h
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -197,8 +197,6 @@ extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 extern void oaktrail_lvds_init(struct drm_device *dev,
 			   struct psb_intel_mode_device *mode_dev);
 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
-extern void oaktrail_dsi_init(struct drm_device *dev,
-			   struct psb_intel_mode_device *mode_dev);
 struct gma_i2c_chan *oaktrail_lvds_i2c_init(struct drm_device *dev);
 extern void mid_dsi_init(struct drm_device *dev,
 		    struct psb_intel_mode_device *mode_dev, int dsi_num);
@@ -219,9 +217,6 @@ extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 						 int pipe);
 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 					     int sdvoB);
-extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
-extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
-				   int enable);
 extern int intelfb_probe(struct drm_device *dev);
 extern int intelfb_remove(struct drm_device *dev,
 			  struct drm_framebuffer *fb);
diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
index e6e6d61bbeab..d421031462df 100644
--- a/drivers/gpu/drm/gma500/psb_irq.c
+++ b/drivers/gpu/drm/gma500/psb_irq.c
@@ -228,7 +228,7 @@ static irqreturn_t gma_irq_handler(int irq, void *arg)
 	vdc_stat &= dev_priv->vdc_irq_mask;
 	spin_unlock(&dev_priv->irqmask_lock);
 
-	if (dsp_int && gma_power_is_on(dev)) {
+	if (dsp_int) {
 		gma_vdc_interrupt(dev, vdc_stat);
 		handled = 1;
 	}
@@ -264,13 +264,12 @@ void gma_irq_preinstall(struct drm_device *dev)
 
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	if (gma_power_is_on(dev)) {
-		PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
-		PSB_WVDC32(0x00000000, PSB_INT_MASK_R);
-		PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
-		PSB_WSGX32(0x00000000, PSB_CR_EVENT_HOST_ENABLE);
-		PSB_RSGX32(PSB_CR_EVENT_HOST_ENABLE);
-	}
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+	PSB_WVDC32(0x00000000, PSB_INT_MASK_R);
+	PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
+	PSB_WSGX32(0x00000000, PSB_CR_EVENT_HOST_ENABLE);
+	PSB_RSGX32(PSB_CR_EVENT_HOST_ENABLE);
+
 	if (dev->vblank[0].enabled)
 		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEA_FLAG;
 	if (dev->vblank[1].enabled)
@@ -316,17 +315,24 @@ void gma_irq_postinstall(struct drm_device *dev)
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 }
 
-int gma_irq_install(struct drm_device *dev, unsigned int irq)
+int gma_irq_install(struct drm_device *dev)
 {
+	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	int ret;
 
-	if (irq == IRQ_NOTCONNECTED)
+	if (dev_priv->use_msi && pci_enable_msi(pdev)) {
+		dev_warn(dev->dev, "Enabling MSI failed!\n");
+		dev_priv->use_msi = false;
+	}
+
+	if (pdev->irq == IRQ_NOTCONNECTED)
 		return -ENOTCONN;
 
 	gma_irq_preinstall(dev);
 
 	/* PCI devices require shared interrupts. */
-	ret = request_irq(irq, gma_irq_handler, IRQF_SHARED, dev->driver->name, dev);
+	ret = request_irq(pdev->irq, gma_irq_handler, IRQF_SHARED, dev->driver->name, dev);
 	if (ret)
 		return ret;
 
@@ -369,6 +375,8 @@ void gma_irq_uninstall(struct drm_device *dev)
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 
 	free_irq(pdev->irq, dev);
+	if (dev_priv->use_msi)
+		pci_disable_msi(pdev);
 }
 
 int gma_crtc_enable_vblank(struct drm_crtc *crtc)
diff --git a/drivers/gpu/drm/gma500/psb_irq.h b/drivers/gpu/drm/gma500/psb_irq.h
index b51e395194ff..7648f69824a5 100644
--- a/drivers/gpu/drm/gma500/psb_irq.h
+++ b/drivers/gpu/drm/gma500/psb_irq.h
@@ -17,7 +17,7 @@ struct drm_device;
 
 void gma_irq_preinstall(struct drm_device *dev);
 void gma_irq_postinstall(struct drm_device *dev);
-int  gma_irq_install(struct drm_device *dev, unsigned int irq);
+int  gma_irq_install(struct drm_device *dev);
 void gma_irq_uninstall(struct drm_device *dev);
 
 int  gma_crtc_enable_vblank(struct drm_crtc *crtc);
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 7ae3b7d67fcf..3efce05d7b57 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -23,6 +23,8 @@ config DRM_I915
 	# but for select to work, need to select ACPI_VIDEO's dependencies, ick
 	select BACKLIGHT_CLASS_DEVICE if ACPI
 	select INPUT if ACPI
+	select X86_PLATFORM_DEVICES if ACPI
+	select ACPI_WMI if ACPI
 	select ACPI_VIDEO if ACPI
 	select ACPI_BUTTON if ACPI
 	select SYNC_FILE
diff --git a/drivers/gpu/drm/i915/display/intel_acpi.c b/drivers/gpu/drm/i915/display/intel_acpi.c
index e78430001f07..9df78e7caa2b 100644
--- a/drivers/gpu/drm/i915/display/intel_acpi.c
+++ b/drivers/gpu/drm/i915/display/intel_acpi.c
@@ -7,6 +7,7 @@
 
 #include <linux/pci.h>
 #include <linux/acpi.h>
+#include <acpi/video.h>
 
 #include "i915_drv.h"
 #include "intel_acpi.h"
@@ -331,3 +332,29 @@ void intel_acpi_assign_connector_fwnodes(struct drm_i915_private *i915)
 	 */
 	fwnode_handle_put(fwnode);
 }
+
+void intel_acpi_video_register(struct drm_i915_private *i915)
+{
+	struct drm_connector_list_iter conn_iter;
+	struct drm_connector *connector;
+
+	acpi_video_register();
+
+	/*
+	 * If i915 is driving an internal panel without registering its native
+	 * backlight handler try to register the acpi_video backlight.
+	 * For panels not driven by i915 another GPU driver may still register
+	 * a native backlight later and acpi_video_register_backlight() should
+	 * only be called after any native backlights have been registered.
+	 */
+	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
+	drm_for_each_connector_iter(connector, &conn_iter) {
+		struct intel_panel *panel = &to_intel_connector(connector)->panel;
+
+		if (panel->backlight.funcs && !panel->backlight.device) {
+			acpi_video_register_backlight();
+			break;
+		}
+	}
+	drm_connector_list_iter_end(&conn_iter);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_acpi.h b/drivers/gpu/drm/i915/display/intel_acpi.h
index 4a760a2baed9..6a0007452f95 100644
--- a/drivers/gpu/drm/i915/display/intel_acpi.h
+++ b/drivers/gpu/drm/i915/display/intel_acpi.h
@@ -14,6 +14,7 @@ void intel_unregister_dsm_handler(void);
 void intel_dsm_get_bios_data_funcs_supported(struct drm_i915_private *i915);
 void intel_acpi_device_id_update(struct drm_i915_private *i915);
 void intel_acpi_assign_connector_fwnodes(struct drm_i915_private *i915);
+void intel_acpi_video_register(struct drm_i915_private *i915);
 #else
 static inline void intel_register_dsm_handler(void) { return; }
 static inline void intel_unregister_dsm_handler(void) { return; }
@@ -23,6 +24,8 @@ static inline
 void intel_acpi_device_id_update(struct drm_i915_private *i915) { return; }
 static inline
 void intel_acpi_assign_connector_fwnodes(struct drm_i915_private *i915) { return; }
+static inline
+void intel_acpi_video_register(struct drm_i915_private *i915) { return; }
 #endif /* CONFIG_ACPI */
 
 #endif /* __INTEL_ACPI_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
index 11a1342d6d37..beba39a38c87 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -8,6 +8,8 @@
 #include <linux/pwm.h>
 #include <linux/string_helpers.h>
 
+#include <acpi/video.h>
+
 #include "intel_backlight.h"
 #include "intel_backlight_regs.h"
 #include "intel_connector.h"
@@ -953,6 +955,11 @@ int intel_backlight_device_register(struct intel_connector *connector)
 
 	WARN_ON(panel->backlight.max == 0);
 
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(&i915->drm, "Skipping intel_backlight registration\n");
+		return 0;
+	}
+
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index accf5311b664..dd008ba8afe3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -9045,7 +9045,7 @@ void intel_display_driver_register(struct drm_i915_private *i915)
 
 	/* Must be done after probing outputs */
 	intel_opregion_register(i915);
-	acpi_video_register();
+	intel_acpi_video_register(i915);
 
 	intel_audio_init(i915);
 
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index dfa942ca62da..9d085c05c49c 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -1222,8 +1222,8 @@ static void mtk_dp_video_mute(struct mtk_dp *mtk_dp, bool enable)
 		      mtk_dp->data->smc_cmd, enable,
 		      0, 0, 0, 0, 0, &res);
 
-	dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: 0x%x, ret: 0x%lx-0x%lx\n",
-		mtk_dp->data->smc_cmd, enable, res.a0, res.a1);
+	dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: %s, ret: 0x%lx-0x%lx\n",
+		mtk_dp->data->smc_cmd, enable ? "enable" : "disable", res.a0, res.a1);
 }
 
 static void mtk_dp_audio_mute(struct mtk_dp *mtk_dp, bool mute)
@@ -1933,39 +1933,41 @@ static enum drm_connector_status mtk_dp_bdg_detect(struct drm_bridge *bridge)
 	bool enabled = mtk_dp->enabled;
 	u8 sink_count = 0;
 
-	if (mtk_dp->train_info.cable_plugged_in) {
-		if (!enabled) {
-			/* power on aux */
-			mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
-					   DP_PWR_STATE_BANDGAP_TPLL_LANE,
-					   DP_PWR_STATE_MASK);
-
-			/* power on panel */
-			drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
-			usleep_range(2000, 5000);
-		}
-		/*
-		 * Some dongles still source HPD when they do not connect to any
-		 * sink device. To avoid this, we need to read the sink count
-		 * to make sure we do connect to sink devices. After this detect
-		 * function, we just need to check the HPD connection to check
-		 * whether we connect to a sink device.
-		 */
-		drm_dp_dpcd_readb(&mtk_dp->aux, DP_SINK_COUNT, &sink_count);
-		if (DP_GET_SINK_COUNT(sink_count))
-			ret = connector_status_connected;
-
-		if (!enabled) {
-			/* power off panel */
-			drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3);
-			usleep_range(2000, 3000);
-
-			/* power off aux */
-			mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
-					   DP_PWR_STATE_BANDGAP_TPLL,
-					   DP_PWR_STATE_MASK);
-		}
+	if (!mtk_dp->train_info.cable_plugged_in)
+		return ret;
+
+	if (!enabled) {
+		/* power on aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL_LANE,
+				   DP_PWR_STATE_MASK);
+
+		/* power on panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
+		usleep_range(2000, 5000);
 	}
+	/*
+	 * Some dongles still source HPD when they do not connect to any
+	 * sink device. To avoid this, we need to read the sink count
+	 * to make sure we do connect to sink devices. After this detect
+	 * function, we just need to check the HPD connection to check
+	 * whether we connect to a sink device.
+	 */
+	drm_dp_dpcd_readb(&mtk_dp->aux, DP_SINK_COUNT, &sink_count);
+	if (DP_GET_SINK_COUNT(sink_count))
+		ret = connector_status_connected;
+
+	if (!enabled) {
+		/* power off panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3);
+		usleep_range(2000, 3000);
+
+		/* power off aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL,
+				   DP_PWR_STATE_MASK);
+	}
+
 	return ret;
 }
 
@@ -2642,7 +2644,7 @@ static const struct of_device_id mtk_dp_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mtk_dp_of_match);
 
-struct platform_driver mtk_dp_driver = {
+static struct platform_driver mtk_dp_driver = {
 	.probe = mtk_dp_probe,
 	.remove = mtk_dp_remove,
 	.driver = {
diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
index 096ad6572a5e..84e38cef03c2 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
+++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
@@ -153,8 +153,6 @@
 #define CH_STATUS_1_DP_ENC0_P0_MASK			GENMASK(15, 0)
 #define MTK_DP_ENC0_P0_3094			0x3094
 #define CH_STATUS_2_DP_ENC0_P0_MASK			GENMASK(7, 0)
-#define MTK_DP_ENC0_P0_30A0			0x30a0
-#define DP_ENC0_30A0_MASK				(BIT(7) | BIT(8) | BIT(12))
 #define MTK_DP_ENC0_P0_30A4			0x30a4
 #define AU_TS_CFG_DP_ENC0_P0_MASK			GENMASK(7, 0)
 #define MTK_DP_ENC0_P0_30A8			0x30a8
@@ -171,8 +169,6 @@
 #define MTK_DP_ENC0_P0_312C			0x312c
 #define ASP_HB2_DP_ENC0_P0_MASK				GENMASK(7, 0)
 #define ASP_HB3_DP_ENC0_P0_MASK				GENMASK(15, 8)
-#define MTK_DP_ENC0_P0_3130			0x3130
-#define MTK_DP_ENC0_P0_3138			0x3138
 #define MTK_DP_ENC0_P0_3154			0x3154
 #define PGEN_HTOTAL_DP_ENC0_P0_MASK			GENMASK(13, 0)
 #define MTK_DP_ENC0_P0_3158			0x3158
@@ -206,8 +202,6 @@
 #define SDP_PACKET_TYPE_DP_ENC1_P0_MASK			GENMASK(4, 0)
 #define SDP_PACKET_W_DP_ENC1_P0				BIT(5)
 #define SDP_PACKET_W_DP_ENC1_P0_MASK			BIT(5)
-#define MTK_DP_ENC1_P0_328C			0x328c
-#define VSC_DATA_RDY_VESA_DP_ENC1_P0_MASK		BIT(7)
 #define MTK_DP_ENC1_P0_3300			0x3300
 #define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_VAL		2
 #define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_MASK		GENMASK(9, 8)
diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
index 660c4cbc0b3d..ee92d576d277 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
@@ -1276,37 +1276,9 @@ static const uint32_t modeset_formats[] = {
 };
 
 static const struct drm_plane_funcs nv04_primary_plane_funcs = {
-	.update_plane = drm_plane_helper_update_primary,
-	.disable_plane = drm_plane_helper_disable_primary,
-	.destroy = drm_plane_helper_destroy,
+	DRM_PLANE_NON_ATOMIC_FUNCS,
 };
 
-static struct drm_plane *
-create_primary_plane(struct drm_device *dev)
-{
-        struct drm_plane *primary;
-        int ret;
-
-        primary = kzalloc(sizeof(*primary), GFP_KERNEL);
-        if (primary == NULL) {
-                DRM_DEBUG_KMS("Failed to allocate primary plane\n");
-                return NULL;
-        }
-
-        /* possible_crtc's will be filled in later by crtc_init */
-        ret = drm_universal_plane_init(dev, primary, 0,
-				       &nv04_primary_plane_funcs,
-                                       modeset_formats,
-                                       ARRAY_SIZE(modeset_formats), NULL,
-                                       DRM_PLANE_TYPE_PRIMARY, NULL);
-        if (ret) {
-                kfree(primary);
-                primary = NULL;
-        }
-
-        return primary;
-}
-
 static int nv04_crtc_vblank_handler(struct nvif_notify *notify)
 {
 	struct nouveau_crtc *nv_crtc =
@@ -1321,6 +1293,7 @@ nv04_crtc_create(struct drm_device *dev, int crtc_num)
 {
 	struct nouveau_display *disp = nouveau_display(dev);
 	struct nouveau_crtc *nv_crtc;
+	struct drm_plane *primary;
 	int ret;
 
 	nv_crtc = kzalloc(sizeof(*nv_crtc), GFP_KERNEL);
@@ -1335,8 +1308,18 @@ nv04_crtc_create(struct drm_device *dev, int crtc_num)
 	nv_crtc->save = nv_crtc_save;
 	nv_crtc->restore = nv_crtc_restore;
 
-	drm_crtc_init_with_planes(dev, &nv_crtc->base,
-                                  create_primary_plane(dev), NULL,
+	primary = __drm_universal_plane_alloc(dev, sizeof(*primary), 0, 0,
+					      &nv04_primary_plane_funcs,
+					      modeset_formats,
+					      ARRAY_SIZE(modeset_formats), NULL,
+					      DRM_PLANE_TYPE_PRIMARY, NULL);
+	if (IS_ERR(primary)) {
+		ret = PTR_ERR(primary);
+		kfree(nv_crtc);
+		return ret;
+	}
+
+	drm_crtc_init_with_planes(dev, &nv_crtc->base, primary, NULL,
                                   &nv04_crtc_funcs, NULL);
 	drm_crtc_helper_add(&nv_crtc->base, &nv04_crtc_helper_funcs);
 	drm_mode_crtc_set_gamma_size(&nv_crtc->base, 256);
diff --git a/drivers/gpu/drm/nouveau/dispnv04/overlay.c b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
index 37e63e98cd08..33f29736024a 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/overlay.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
@@ -296,9 +296,10 @@ nv10_overlay_init(struct drm_device *device)
 		break;
 	}
 
-	ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */,
-			     &nv10_plane_funcs,
-			     formats, num_formats, false);
+	ret = drm_universal_plane_init(device, &plane->base, 3 /* both crtc's */,
+				       &nv10_plane_funcs,
+				       formats, num_formats, NULL,
+				       DRM_PLANE_TYPE_OVERLAY, NULL);
 	if (ret)
 		goto err;
 
@@ -475,9 +476,9 @@ nv04_overlay_init(struct drm_device *device)
 	if (!plane)
 		return;
 
-	ret = drm_plane_init(device, &plane->base, 1 /* single crtc */,
-			     &nv04_plane_funcs,
-			     formats, 2, false);
+	ret = drm_universal_plane_init(device, &plane->base, 1 /* single crtc */,
+				       &nv04_plane_funcs, formats, 2, NULL,
+				       DRM_PLANE_TYPE_OVERLAY, NULL);
 	if (ret)
 		goto err;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 6140db756d06..8cf096f841a9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -386,3 +386,13 @@ nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector)
 
 	return kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 }
+
+bool nouveau_acpi_video_backlight_use_native(void)
+{
+	return acpi_video_backlight_use_native();
+}
+
+void nouveau_acpi_video_register_backlight(void)
+{
+	acpi_video_register_backlight();
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.h b/drivers/gpu/drm/nouveau/nouveau_acpi.h
index 330f9b837066..e39dd8b94b8b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.h
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.h
@@ -11,6 +11,8 @@ void nouveau_register_dsm_handler(void);
 void nouveau_unregister_dsm_handler(void);
 void nouveau_switcheroo_optimus_dsm(void);
 void *nouveau_acpi_edid(struct drm_device *, struct drm_connector *);
+bool nouveau_acpi_video_backlight_use_native(void);
+void nouveau_acpi_video_register_backlight(void);
 #else
 static inline bool nouveau_is_optimus(void) { return false; };
 static inline bool nouveau_is_v1_dsm(void) { return false; };
@@ -18,6 +20,8 @@ static inline void nouveau_register_dsm_handler(void) {}
 static inline void nouveau_unregister_dsm_handler(void) {}
 static inline void nouveau_switcheroo_optimus_dsm(void) {}
 static inline void *nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) { return NULL; }
+static inline bool nouveau_acpi_video_backlight_use_native(void) { return true; }
+static inline void nouveau_acpi_video_register_backlight(void) {}
 #endif
 
 #endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index a2141d3d9b1d..a614582779ca 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -38,6 +38,7 @@
 #include "nouveau_reg.h"
 #include "nouveau_encoder.h"
 #include "nouveau_connector.h"
+#include "nouveau_acpi.h"
 
 static struct ida bl_ida;
 #define BL_NAME_SIZE 15 // 12 for name + 2 for digits + 1 for '\0'
@@ -405,6 +406,11 @@ nouveau_backlight_init(struct drm_connector *connector)
 		goto fail_alloc;
 	}
 
+	if (!nouveau_acpi_video_backlight_use_native()) {
+		NV_INFO(drm, "Skipping nv_backlight registration\n");
+		goto fail_alloc;
+	}
+
 	if (!nouveau_get_backlight_name(backlight_name, bl)) {
 		NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
 		goto fail_alloc;
@@ -430,6 +436,13 @@ nouveau_backlight_init(struct drm_connector *connector)
 
 fail_alloc:
 	kfree(bl);
+	/*
+	 * If we get here we have an internal panel, but no nv_backlight,
+	 * try registering an ACPI video backlight device instead.
+	 */
+	if (ret == 0)
+		nouveau_acpi_video_register_backlight();
+
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index c4de142cc85b..0ee344ebcd1c 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -2451,7 +2451,7 @@ static int dispc_ovl_calc_scaling_44xx(struct dispc_device *dispc,
 
 	*decim_x = DIV_ROUND_UP(width, in_width_max);
 
-	*decim_x = *decim_x > decim_x_min ? *decim_x : decim_x_min;
+	*decim_x = max(*decim_x, decim_x_min);
 	if (*decim_x > *x_predecim)
 		return -EINVAL;
 
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index 0399f3390a0a..c4febb861910 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss.c
@@ -1176,6 +1176,7 @@ static void __dss_uninit_ports(struct dss_device *dss, unsigned int num_ports)
 		default:
 			break;
 		}
+		of_node_put(port);
 	}
 }
 
@@ -1208,11 +1209,13 @@ static int dss_init_ports(struct dss_device *dss)
 		default:
 			break;
 		}
+		of_node_put(port);
 	}
 
 	return 0;
 
 error:
+	of_node_put(port);
 	__dss_uninit_ports(dss, i);
 	return r;
 }
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index ac869acf80ea..61a27dd7392e 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -813,10 +813,8 @@ static int omap_dmm_probe(struct platform_device *dev)
 	}
 
 	omap_dmm->irq = platform_get_irq(dev, 0);
-	if (omap_dmm->irq < 0) {
-		dev_err(&dev->dev, "failed to get IRQ resource\n");
+	if (omap_dmm->irq < 0)
 		goto fail;
-	}
 
 	omap_dmm->dev = &dev->dev;
 
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
index 7da09e34385d..39dc40cf681f 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
@@ -576,6 +576,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs ili9341_dbi_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = ili9341_dbi_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 0eae05dfb385..c841c273222e 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -32,6 +32,8 @@
 #include <drm/drm_file.h>
 #include <drm/radeon_drm.h>
 
+#include <acpi/video.h>
+
 #include "atom.h"
 #include "radeon_atombios.h"
 #include "radeon.h"
@@ -209,6 +211,11 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
 	if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU))
 		return;
 
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(dev, "Skipping radeon atom DIG backlight registration\n");
+		return;
+	}
+
 	pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL);
 	if (!pdata) {
 		DRM_ERROR("Memory allocation failed\n");
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 8be4799a98ef..638f861af80f 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -34,8 +34,6 @@
 #include "r600_reg_safe.h"
 
 static int r600_nomm;
-extern void r600_cs_legacy_get_tiling_conf(struct drm_device *dev, u32 *npipes, u32 *nbanks, u32 *group_size);
-
 
 struct r600_cs_track {
 	/* configuration we mirror so that we use same code btw kms/ums */
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 08f83bf2c330..166c18d62f6d 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -116,7 +116,6 @@ extern int radeon_use_pflipirq;
 extern int radeon_bapm;
 extern int radeon_backlight;
 extern int radeon_auxch;
-extern int radeon_mst;
 extern int radeon_uvd;
 extern int radeon_vce;
 extern int radeon_si_support;
@@ -2950,8 +2949,6 @@ struct radeon_hdmi_acr {
 
 };
 
-extern struct radeon_hdmi_acr r600_hdmi_acr(uint32_t clock);
-
 extern u32 r6xx_remap_render_backend(struct radeon_device *rdev,
 				     u32 tiling_pipe_num,
 				     u32 max_rb_num,
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 35c535e48b8d..fbc0a2182318 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -30,6 +30,8 @@
 #include <drm/drm_device.h>
 #include <drm/radeon_drm.h>
 
+#include <acpi/video.h>
+
 #include "radeon.h"
 #include "radeon_atombios.h"
 #include "radeon_legacy_encoders.h"
@@ -167,7 +169,7 @@ static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 		return;
 
 	if (radeon_backlight == 0) {
-		return;
+		use_bl = false;
 	} else if (radeon_backlight == 1) {
 		use_bl = true;
 	} else if (radeon_backlight == -1) {
@@ -193,6 +195,13 @@ static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 		else
 			radeon_legacy_backlight_init(radeon_encoder, connector);
 	}
+
+	/*
+	 * If there is no native backlight device (which may happen even when
+	 * use_bl==true) try registering an ACPI video backlight device instead.
+	 */
+	if (!rdev->mode_info.bl_encoder)
+		acpi_video_register_backlight();
 }
 
 void
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 1a66fb969ee7..0cd32c65456c 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -33,6 +33,8 @@
 #include <drm/drm_util.h>
 #include <drm/radeon_drm.h>
 
+#include <acpi/video.h>
+
 #include "radeon.h"
 #include "radeon_asic.h"
 #include "radeon_legacy_encoders.h"
@@ -387,6 +389,11 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
 		return;
 #endif
 
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(dev, "Skipping radeon legacy LVDS backlight registration\n");
+		return;
+	}
+
 	pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL);
 	if (!pdata) {
 		DRM_ERROR("Memory allocation failed\n");
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 6a6a73204226..9f5be416454f 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -874,7 +874,6 @@ extern struct radeon_encoder_tv_dac *
 radeon_atombios_get_tv_dac_info(struct radeon_encoder *encoder);
 extern struct radeon_encoder_lvds *
 radeon_combios_get_lvds_info(struct radeon_encoder *encoder);
-extern void radeon_combios_get_ext_tmds_info(struct radeon_encoder *encoder);
 extern struct radeon_encoder_tv_dac *
 radeon_combios_get_tv_dac_info(struct radeon_encoder *encoder);
 extern struct radeon_encoder_primary_dac *
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 110e83aad9bb..bf6948125b84 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -179,6 +179,23 @@
 #define RK3399_TXRX_SRC_SEL_ISP0	BIT(4)
 #define RK3399_TXRX_TURNREQUEST		GENMASK(3, 0)
 
+#define RK3568_GRF_VO_CON2		0x0368
+#define RK3568_DSI0_SKEWCALHS		(0x1f << 11)
+#define RK3568_DSI0_FORCETXSTOPMODE	(0xf << 4)
+#define RK3568_DSI0_TURNDISABLE		BIT(2)
+#define RK3568_DSI0_FORCERXMODE		BIT(0)
+
+/*
+ * Note these registers do not appear in the datasheet, they are
+ * however present in the BSP driver which is where these values
+ * come from. Name GRF_VO_CON3 is assumed.
+ */
+#define RK3568_GRF_VO_CON3		0x36c
+#define RK3568_DSI1_SKEWCALHS		(0x1f << 11)
+#define RK3568_DSI1_FORCETXSTOPMODE	(0xf << 4)
+#define RK3568_DSI1_TURNDISABLE		BIT(2)
+#define RK3568_DSI1_FORCERXMODE		BIT(0)
+
 #define HIWORD_UPDATE(val, mask)	(val | (mask) << 16)
 
 enum {
@@ -735,8 +752,9 @@ static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi)
 static void dw_mipi_dsi_rockchip_set_lcdsel(struct dw_mipi_dsi_rockchip *dsi,
 					    int mux)
 {
-	regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
-		mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
+	if (dsi->cdata->lcdsel_grf_reg < 0)
+		regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
+			mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
 }
 
 static int
@@ -963,6 +981,8 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 		DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");
 		goto out_pll_clk;
 	}
+	rockchip_drm_encoder_set_crtc_endpoint_id(&dsi->encoder,
+						  dev->of_node, 0, 0);
 
 	ret = dw_mipi_dsi_bind(dsi->dmd, &dsi->encoder.encoder);
 	if (ret) {
@@ -1612,6 +1632,30 @@ static const struct rockchip_dw_dsi_chip_data rk3399_chip_data[] = {
 	{ /* sentinel */ }
 };
 
+static const struct rockchip_dw_dsi_chip_data rk3568_chip_data[] = {
+	{
+		.reg = 0xfe060000,
+		.lcdsel_grf_reg = -1,
+		.lanecfg1_grf_reg = RK3568_GRF_VO_CON2,
+		.lanecfg1 = HIWORD_UPDATE(0, RK3568_DSI0_SKEWCALHS |
+					  RK3568_DSI0_FORCETXSTOPMODE |
+					  RK3568_DSI0_TURNDISABLE |
+					  RK3568_DSI0_FORCERXMODE),
+		.max_data_lanes = 4,
+	},
+	{
+		.reg = 0xfe070000,
+		.lcdsel_grf_reg = -1,
+		.lanecfg1_grf_reg = RK3568_GRF_VO_CON3,
+		.lanecfg1 = HIWORD_UPDATE(0, RK3568_DSI1_SKEWCALHS |
+					  RK3568_DSI1_FORCETXSTOPMODE |
+					  RK3568_DSI1_TURNDISABLE |
+					  RK3568_DSI1_FORCERXMODE),
+		.max_data_lanes = 4,
+	},
+	{ /* sentinel */ }
+};
+
 static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
 	{
 	 .compatible = "rockchip,px30-mipi-dsi",
@@ -1622,6 +1666,9 @@ static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
 	}, {
 	 .compatible = "rockchip,rk3399-mipi-dsi",
 	 .data = &rk3399_chip_data,
+	}, {
+	 .compatible = "rockchip,rk3568-mipi-dsi",
+	 .data = &rk3568_chip_data,
 	},
 	{ /* sentinel */ }
 };
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index bdd48f87d098..c356de5dd220 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -9,6 +9,7 @@
 #include <linux/delay.h>
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
+#include <linux/log2.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -67,6 +68,9 @@
 #define VOP_REG_SET(vop, group, name, v) \
 		    vop_reg_set(vop, &vop->data->group->name, 0, ~0, v, #name)
 
+#define VOP_HAS_REG(vop, group, name) \
+		(!!(vop->data->group->name.mask))
+
 #define VOP_INTR_SET_TYPE(vop, name, type, v) \
 	do { \
 		int i, reg = 0, mask = 0; \
@@ -184,12 +188,6 @@ struct vop {
 	struct vop_win win[];
 };
 
-static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v)
-{
-	writel(v, vop->regs + offset);
-	vop->regsbak[offset >> 2] = v;
-}
-
 static inline uint32_t vop_readl(struct vop *vop, uint32_t offset)
 {
 	return readl(vop->regs + offset);
@@ -1188,7 +1186,7 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
 	 *
 	 * Key points:
 	 *
-	 * - DRM works in in kHz.
+	 * - DRM works in kHz.
 	 * - Clock framework works in Hz.
 	 * - Rockchip's clock driver picks the clock rate that is the
 	 *   same _OR LOWER_ than the one requested.
@@ -1223,17 +1221,22 @@ static bool vop_dsp_lut_is_enabled(struct vop *vop)
 	return vop_read_reg(vop, 0, &vop->data->common->dsp_lut_en);
 }
 
+static u32 vop_lut_buffer_index(struct vop *vop)
+{
+	return vop_read_reg(vop, 0, &vop->data->common->lut_buffer_index);
+}
+
 static void vop_crtc_write_gamma_lut(struct vop *vop, struct drm_crtc *crtc)
 {
 	struct drm_color_lut *lut = crtc->state->gamma_lut->data;
-	unsigned int i;
+	unsigned int i, bpc = ilog2(vop->data->lut_size);
 
 	for (i = 0; i < crtc->gamma_size; i++) {
 		u32 word;
 
-		word = (drm_color_lut_extract(lut[i].red, 10) << 20) |
-		       (drm_color_lut_extract(lut[i].green, 10) << 10) |
-			drm_color_lut_extract(lut[i].blue, 10);
+		word = (drm_color_lut_extract(lut[i].red, bpc) << (2 * bpc)) |
+		       (drm_color_lut_extract(lut[i].green, bpc) << bpc) |
+			drm_color_lut_extract(lut[i].blue, bpc);
 		writel(word, vop->lut_regs + i * 4);
 	}
 }
@@ -1243,38 +1246,66 @@ static void vop_crtc_gamma_set(struct vop *vop, struct drm_crtc *crtc,
 {
 	struct drm_crtc_state *state = crtc->state;
 	unsigned int idle;
+	u32 lut_idx, old_idx;
 	int ret;
 
 	if (!vop->lut_regs)
 		return;
-	/*
-	 * To disable gamma (gamma_lut is null) or to write
-	 * an update to the LUT, clear dsp_lut_en.
-	 */
-	spin_lock(&vop->reg_lock);
-	VOP_REG_SET(vop, common, dsp_lut_en, 0);
-	vop_cfg_done(vop);
-	spin_unlock(&vop->reg_lock);
 
-	/*
-	 * In order to write the LUT to the internal memory,
-	 * we need to first make sure the dsp_lut_en bit is cleared.
-	 */
-	ret = readx_poll_timeout(vop_dsp_lut_is_enabled, vop,
-				 idle, !idle, 5, 30 * 1000);
-	if (ret) {
-		DRM_DEV_ERROR(vop->dev, "display LUT RAM enable timeout!\n");
-		return;
-	}
+	if (!state->gamma_lut || !VOP_HAS_REG(vop, common, update_gamma_lut)) {
+		/*
+		 * To disable gamma (gamma_lut is null) or to write
+		 * an update to the LUT, clear dsp_lut_en.
+		 */
+		spin_lock(&vop->reg_lock);
+		VOP_REG_SET(vop, common, dsp_lut_en, 0);
+		vop_cfg_done(vop);
+		spin_unlock(&vop->reg_lock);
 
-	if (!state->gamma_lut)
-		return;
+		/*
+		 * In order to write the LUT to the internal memory,
+		 * we need to first make sure the dsp_lut_en bit is cleared.
+		 */
+		ret = readx_poll_timeout(vop_dsp_lut_is_enabled, vop,
+					 idle, !idle, 5, 30 * 1000);
+		if (ret) {
+			DRM_DEV_ERROR(vop->dev, "display LUT RAM enable timeout!\n");
+			return;
+		}
+
+		if (!state->gamma_lut)
+			return;
+	} else {
+		/*
+		 * On RK3399 the gamma LUT can updated without clearing dsp_lut_en,
+		 * by setting update_gamma_lut then waiting for lut_buffer_index change
+		 */
+		old_idx = vop_lut_buffer_index(vop);
+	}
 
 	spin_lock(&vop->reg_lock);
 	vop_crtc_write_gamma_lut(vop, crtc);
 	VOP_REG_SET(vop, common, dsp_lut_en, 1);
+	VOP_REG_SET(vop, common, update_gamma_lut, 1);
 	vop_cfg_done(vop);
 	spin_unlock(&vop->reg_lock);
+
+	if (VOP_HAS_REG(vop, common, update_gamma_lut)) {
+		ret = readx_poll_timeout(vop_lut_buffer_index, vop,
+					 lut_idx, lut_idx != old_idx, 5, 30 * 1000);
+		if (ret) {
+			DRM_DEV_ERROR(vop->dev, "gamma LUT update timeout!\n");
+			return;
+		}
+
+		/*
+		 * update_gamma_lut is auto cleared by HW, but write 0 to clear the bit
+		 * in our backup of the regs.
+		 */
+		spin_lock(&vop->reg_lock);
+		VOP_REG_SET(vop, common, update_gamma_lut, 0);
+		spin_unlock(&vop->reg_lock);
+	}
 }
 
 static void vop_crtc_atomic_begin(struct drm_crtc *crtc,
@@ -1324,14 +1355,6 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc,
 		return;
 	}
 
-	/*
-	 * If we have a GAMMA LUT in the state, then let's make sure
-	 * it's updated. We might be coming out of suspend,
-	 * which means the LUT internal memory needs to be re-written.
-	 */
-	if (crtc->state->gamma_lut)
-		vop_crtc_gamma_set(vop, crtc, old_state);
-
 	mutex_lock(&vop->vop_lock);
 
 	WARN_ON(vop->event);
@@ -1422,6 +1445,14 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc,
 
 	VOP_REG_SET(vop, common, standby, 0);
 	mutex_unlock(&vop->vop_lock);
+
+	/*
+	 * If we have a GAMMA LUT in the state, then let's make sure
+	 * it's updated. We might be coming out of suspend,
+	 * which means the LUT internal memory needs to be re-written.
+	 */
+	if (crtc->state->gamma_lut)
+		vop_crtc_gamma_set(vop, crtc, old_state);
 }
 
 static bool vop_fs_irq_is_pending(struct vop *vop)
@@ -2147,8 +2178,8 @@ static int vop_bind(struct device *dev, struct device *master, void *data)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	if (res) {
-		if (!vop_data->lut_size) {
-			DRM_DEV_ERROR(dev, "no gamma LUT size defined\n");
+		if (vop_data->lut_size != 1024 && vop_data->lut_size != 256) {
+			DRM_DEV_ERROR(dev, "unsupported gamma LUT size %d\n", vop_data->lut_size);
 			return -EINVAL;
 		}
 		vop->lut_regs = devm_ioremap_resource(dev, res);
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index ba88addc1a75..8502849833d9 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -113,6 +113,8 @@ struct vop_common {
 	struct vop_reg dither_down_en;
 	struct vop_reg dither_up;
 	struct vop_reg dsp_lut_en;
+	struct vop_reg update_gamma_lut;
+	struct vop_reg lut_buffer_index;
 	struct vop_reg gate_en;
 	struct vop_reg mmu_en;
 	struct vop_reg out_mode;
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index d03dd0402923..014f99e8928e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -875,6 +875,24 @@ static const struct vop_output rk3399_output = {
 	.mipi_dual_channel_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 3),
 };
 
+static const struct vop_common rk3399_common = {
+	.standby = VOP_REG_SYNC(RK3399_SYS_CTRL, 0x1, 22),
+	.gate_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 23),
+	.mmu_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 20),
+	.dither_down_sel = VOP_REG(RK3399_DSP_CTRL1, 0x1, 4),
+	.dither_down_mode = VOP_REG(RK3399_DSP_CTRL1, 0x1, 3),
+	.dither_down_en = VOP_REG(RK3399_DSP_CTRL1, 0x1, 2),
+	.pre_dither_down = VOP_REG(RK3399_DSP_CTRL1, 0x1, 1),
+	.dither_up = VOP_REG(RK3399_DSP_CTRL1, 0x1, 6),
+	.dsp_lut_en = VOP_REG(RK3399_DSP_CTRL1, 0x1, 0),
+	.update_gamma_lut = VOP_REG(RK3399_DSP_CTRL1, 0x1, 7),
+	.lut_buffer_index = VOP_REG(RK3399_DBG_POST_REG1, 0x1, 1),
+	.data_blank = VOP_REG(RK3399_DSP_CTRL0, 0x1, 19),
+	.dsp_blank = VOP_REG(RK3399_DSP_CTRL0, 0x3, 18),
+	.out_mode = VOP_REG(RK3399_DSP_CTRL0, 0xf, 0),
+	.cfg_done = VOP_REG_SYNC(RK3399_REG_CFG_DONE, 0x1, 0),
+};
+
 static const struct vop_yuv2yuv_phy rk3399_yuv2yuv_win01_data = {
 	.y2r_coefficients = {
 		VOP_REG(RK3399_WIN0_YUV2YUV_Y2R + 0, 0xffff, 0),
@@ -957,7 +975,7 @@ static const struct vop_data rk3399_vop_big = {
 	.version = VOP_VERSION(3, 5),
 	.feature = VOP_FEATURE_OUTPUT_RGB10,
 	.intr = &rk3366_vop_intr,
-	.common = &rk3288_common,
+	.common = &rk3399_common,
 	.modeset = &rk3288_modeset,
 	.output = &rk3399_output,
 	.afbc = &rk3399_vop_afbc,
@@ -965,6 +983,7 @@ static const struct vop_data rk3399_vop_big = {
 	.win = rk3399_vop_win_data,
 	.win_size = ARRAY_SIZE(rk3399_vop_win_data),
 	.win_yuv2yuv = rk3399_vop_big_win_yuv2yuv_data,
+	.lut_size = 1024,
 };
 
 static const struct vop_win_data rk3399_vop_lit_win_data[] = {
@@ -983,13 +1002,14 @@ static const struct vop_win_yuv2yuv_data rk3399_vop_lit_win_yuv2yuv_data[] = {
 static const struct vop_data rk3399_vop_lit = {
 	.version = VOP_VERSION(3, 6),
 	.intr = &rk3366_vop_intr,
-	.common = &rk3288_common,
+	.common = &rk3399_common,
 	.modeset = &rk3288_modeset,
 	.output = &rk3399_output,
 	.misc = &rk3368_misc,
 	.win = rk3399_vop_lit_win_data,
 	.win_size = ARRAY_SIZE(rk3399_vop_lit_win_data),
 	.win_yuv2yuv = rk3399_vop_lit_win_yuv2yuv_data,
+	.lut_size = 256,
 };
 
 static const struct vop_win_data rk3228_vop_win_data[] = {
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.h b/drivers/gpu/drm/rockchip/rockchip_vop_reg.h
index 0b3cd65ba5c1..406e981c75bd 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.h
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.h
@@ -628,6 +628,7 @@
 #define RK3399_YUV2YUV_WIN			0x02c0
 #define RK3399_YUV2YUV_POST			0x02c4
 #define RK3399_AUTO_GATING_EN			0x02cc
+#define RK3399_DBG_POST_REG1			0x036c
 #define RK3399_WIN0_CSC_COE			0x03a0
 #define RK3399_WIN1_CSC_COE			0x03c0
 #define RK3399_WIN2_CSC_COE			0x03e0
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index e5a4ecde0063..4f2395d1a791 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -829,7 +829,7 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
 	job = list_first_entry_or_null(&sched->pending_list,
 				       struct drm_sched_job, list);
 
-	if (job && dma_fence_is_signaled(&job->s_fence->finished)) {
+	if (job && dma_fence_is_signaled(job->s_fence->parent)) {
 		/* remove job from pending_list */
 		list_del_init(&job->list);
 
@@ -841,7 +841,7 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
 
 		if (next) {
 			next->s_fence->scheduled.timestamp =
-				job->s_fence->finished.timestamp;
+				job->s_fence->parent->timestamp;
 			/* start TO timer for next job */
 			drm_sched_start_timeout(sched);
 		}
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
index 54228424793a..6c5f0cbe7d95 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_plane.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
@@ -252,9 +252,10 @@ int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index)
 	splane->index = index;
 	splane->alpha = 255;
 
-	ret = drm_plane_init(sdev->ddev, &splane->plane, 1,
-			     &shmob_drm_plane_funcs, formats,
-			     ARRAY_SIZE(formats), false);
+	ret = drm_universal_plane_init(sdev->ddev, &splane->plane, 1,
+				       &shmob_drm_plane_funcs,
+				       formats, ARRAY_SIZE(formats), NULL,
+				       DRM_PLANE_TYPE_OVERLAY, NULL);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
index c95221fff474..7fae9480aa11 100644
--- a/drivers/gpu/drm/solomon/ssd130x.c
+++ b/drivers/gpu/drm/solomon/ssd130x.c
@@ -565,22 +565,6 @@ static int ssd130x_fb_blit_rect(struct drm_framebuffer *fb, const struct iosys_m
 	return ret;
 }
 
-static int ssd130x_primary_plane_helper_atomic_check(struct drm_plane *plane,
-						     struct drm_atomic_state *new_state)
-{
-	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(new_state, plane);
-	struct drm_crtc *new_crtc = new_plane_state->crtc;
-	struct drm_crtc_state *new_crtc_state = NULL;
-
-	if (new_crtc)
-		new_crtc_state = drm_atomic_get_new_crtc_state(new_state, new_crtc);
-
-	return drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
-						   DRM_PLANE_NO_SCALING,
-						   DRM_PLANE_NO_SCALING,
-						   false, false);
-}
-
 static void ssd130x_primary_plane_helper_atomic_update(struct drm_plane *plane,
 						       struct drm_atomic_state *old_state)
 {
@@ -623,7 +607,7 @@ static void ssd130x_primary_plane_helper_atomic_disable(struct drm_plane *plane,
 
 static const struct drm_plane_helper_funcs ssd130x_primary_plane_helper_funcs = {
 	DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
-	.atomic_check = ssd130x_primary_plane_helper_atomic_check,
+	.atomic_check = drm_plane_helper_atomic_check,
 	.atomic_update = ssd130x_primary_plane_helper_atomic_update,
 	.atomic_disable = ssd130x_primary_plane_helper_atomic_disable,
 };
diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
index d76f83833e75..7a2b2d6bc3fe 100644
--- a/drivers/gpu/drm/tests/drm_buddy_test.c
+++ b/drivers/gpu/drm/tests/drm_buddy_test.c
@@ -13,7 +13,7 @@
 
 #include "../lib/drm_random.h"
 
-#define IGT_TIMEOUT(name__)                                                    \
+#define TIMEOUT(name__)								\
 	unsigned long name__ = jiffies + MAX_SCHEDULE_TIMEOUT
 
 static unsigned int random_seed;
@@ -24,7 +24,7 @@ static inline u64 get_size(int order, u64 chunk_size)
 }
 
 __printf(2, 3)
-static bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
+static bool __timeout(unsigned long timeout, const char *fmt, ...)
 {
 	va_list va;
 
@@ -43,8 +43,8 @@ static bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
 	return true;
 }
 
-static void __igt_dump_block(struct kunit *test, struct drm_buddy *mm,
-			     struct drm_buddy_block *block, bool buddy)
+static void __dump_block(struct kunit *test, struct drm_buddy *mm,
+			 struct drm_buddy_block *block, bool buddy)
 {
 	kunit_err(test, "block info: header=%llx, state=%u, order=%d, offset=%llx size=%llx root=%d buddy=%d\n",
 		  block->header, drm_buddy_block_state(block),
@@ -52,20 +52,20 @@ static void __igt_dump_block(struct kunit *test, struct drm_buddy *mm,
 			  drm_buddy_block_size(mm, block), !block->parent, buddy);
 }
 
-static void igt_dump_block(struct kunit *test, struct drm_buddy *mm,
-			   struct drm_buddy_block *block)
+static void dump_block(struct kunit *test, struct drm_buddy *mm,
+		       struct drm_buddy_block *block)
 {
 	struct drm_buddy_block *buddy;
 
-	__igt_dump_block(test, mm, block, false);
+	__dump_block(test, mm, block, false);
 
 	buddy = drm_get_buddy(block);
 	if (buddy)
-		__igt_dump_block(test, mm, buddy, true);
+		__dump_block(test, mm, buddy, true);
 }
 
-static int igt_check_block(struct kunit *test, struct drm_buddy *mm,
-			   struct drm_buddy_block *block)
+static int check_block(struct kunit *test, struct drm_buddy *mm,
+		       struct drm_buddy_block *block)
 {
 	struct drm_buddy_block *buddy;
 	unsigned int block_state;
@@ -137,8 +137,8 @@ static int igt_check_block(struct kunit *test, struct drm_buddy *mm,
 	return err;
 }
 
-static int igt_check_blocks(struct kunit *test, struct drm_buddy *mm,
-			    struct list_head *blocks, u64 expected_size, bool is_contiguous)
+static int check_blocks(struct kunit *test, struct drm_buddy *mm,
+			struct list_head *blocks, u64 expected_size, bool is_contiguous)
 {
 	struct drm_buddy_block *block;
 	struct drm_buddy_block *prev;
@@ -150,7 +150,7 @@ static int igt_check_blocks(struct kunit *test, struct drm_buddy *mm,
 	total = 0;
 
 	list_for_each_entry(block, blocks, link) {
-		err = igt_check_block(test, mm, block);
+		err = check_block(test, mm, block);
 
 		if (!drm_buddy_block_is_allocated(block)) {
 			kunit_err(test, "block not allocated\n");
@@ -190,16 +190,16 @@ static int igt_check_blocks(struct kunit *test, struct drm_buddy *mm,
 
 	if (prev) {
 		kunit_err(test, "prev block, dump:\n");
-		igt_dump_block(test, mm, prev);
+		dump_block(test, mm, prev);
 	}
 
 	kunit_err(test, "bad block, dump:\n");
-	igt_dump_block(test, mm, block);
+	dump_block(test, mm, block);
 
 	return err;
 }
 
-static int igt_check_mm(struct kunit *test, struct drm_buddy *mm)
+static int check_mm(struct kunit *test, struct drm_buddy *mm)
 {
 	struct drm_buddy_block *root;
 	struct drm_buddy_block *prev;
@@ -233,7 +233,7 @@ static int igt_check_mm(struct kunit *test, struct drm_buddy *mm)
 			break;
 		}
 
-		err = igt_check_block(test, mm, root);
+		err = check_block(test, mm, root);
 
 		if (!drm_buddy_block_is_free(root)) {
 			kunit_err(test, "root not free\n");
@@ -289,18 +289,18 @@ static int igt_check_mm(struct kunit *test, struct drm_buddy *mm)
 
 	if (prev) {
 		kunit_err(test, "prev root(%u), dump:\n", i - 1);
-		igt_dump_block(test, mm, prev);
+		dump_block(test, mm, prev);
 	}
 
 	if (root) {
 		kunit_err(test, "bad root(%u), dump:\n", i);
-		igt_dump_block(test, mm, root);
+		dump_block(test, mm, root);
 	}
 
 	return err;
 }
 
-static void igt_mm_config(u64 *size, u64 *chunk_size)
+static void mm_config(u64 *size, u64 *chunk_size)
 {
 	DRM_RND_STATE(prng, random_seed);
 	u32 s, ms;
@@ -321,7 +321,7 @@ static void igt_mm_config(u64 *size, u64 *chunk_size)
 	*size = (u64)s << 12;
 }
 
-static void igt_buddy_alloc_pathological(struct kunit *test)
+static void drm_test_buddy_alloc_pathological(struct kunit *test)
 {
 	u64 mm_size, size, start = 0;
 	struct drm_buddy_block *block;
@@ -402,7 +402,7 @@ static void igt_buddy_alloc_pathological(struct kunit *test)
 	drm_buddy_fini(&mm);
 }
 
-static void igt_buddy_alloc_smoke(struct kunit *test)
+static void drm_test_buddy_alloc_smoke(struct kunit *test)
 {
 	u64 mm_size, chunk_size, start = 0;
 	unsigned long flags = 0;
@@ -411,9 +411,9 @@ static void igt_buddy_alloc_smoke(struct kunit *test)
 	int i;
 
 	DRM_RND_STATE(prng, random_seed);
-	IGT_TIMEOUT(end_time);
+	TIMEOUT(end_time);
 
-	igt_mm_config(&mm_size, &chunk_size);
+	mm_config(&mm_size, &chunk_size);
 
 	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, chunk_size),
 			       "buddy_init failed\n");
@@ -430,7 +430,7 @@ static void igt_buddy_alloc_smoke(struct kunit *test)
 		LIST_HEAD(tmp);
 		int order, err;
 
-		KUNIT_ASSERT_FALSE_MSG(test, igt_check_mm(test, &mm),
+		KUNIT_ASSERT_FALSE_MSG(test, check_mm(test, &mm),
 				       "pre-mm check failed, abort\n");
 
 		order = max_order;
@@ -466,19 +466,19 @@ retry:
 
 			total += drm_buddy_block_size(&mm, block);
 
-			if (__igt_timeout(end_time, NULL)) {
+			if (__timeout(end_time, NULL)) {
 				timeout = true;
 				break;
 			}
 		} while (total < mm.size);
 
 		if (!err)
-			err = igt_check_blocks(test, &mm, &blocks, total, false);
+			err = check_blocks(test, &mm, &blocks, total, false);
 
 		drm_buddy_free_list(&mm, &blocks);
 
 		if (!err) {
-			KUNIT_EXPECT_FALSE_MSG(test, igt_check_mm(test, &mm),
+			KUNIT_EXPECT_FALSE_MSG(test, check_mm(test, &mm),
 					       "post-mm check failed\n");
 		}
 
@@ -492,7 +492,7 @@ retry:
 	drm_buddy_fini(&mm);
 }
 
-static void igt_buddy_alloc_pessimistic(struct kunit *test)
+static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
 {
 	u64 mm_size, size, start = 0;
 	struct drm_buddy_block *block, *bn;
@@ -587,7 +587,7 @@ static void igt_buddy_alloc_pessimistic(struct kunit *test)
 	drm_buddy_fini(&mm);
 }
 
-static void igt_buddy_alloc_optimistic(struct kunit *test)
+static void drm_test_buddy_alloc_optimistic(struct kunit *test)
 {
 	u64 mm_size, size, start = 0;
 	struct drm_buddy_block *block;
@@ -633,7 +633,7 @@ static void igt_buddy_alloc_optimistic(struct kunit *test)
 	drm_buddy_fini(&mm);
 }
 
-static void igt_buddy_alloc_range(struct kunit *test)
+static void drm_test_buddy_alloc_range(struct kunit *test)
 {
 	unsigned long flags = DRM_BUDDY_RANGE_ALLOCATION;
 	u64 offset, size, rem, chunk_size, end;
@@ -641,12 +641,12 @@ static void igt_buddy_alloc_range(struct kunit *test)
 	struct drm_buddy mm;
 	LIST_HEAD(blocks);
 
-	igt_mm_config(&size, &chunk_size);
+	mm_config(&size, &chunk_size);
 
 	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, size, chunk_size),
 			       "buddy_init failed");
 
-	KUNIT_ASSERT_FALSE_MSG(test, igt_check_mm(test, &mm),
+	KUNIT_ASSERT_FALSE_MSG(test, check_mm(test, &mm),
 			       "pre-mm check failed, abort!");
 
 	rem = mm.size;
@@ -671,7 +671,7 @@ static void igt_buddy_alloc_range(struct kunit *test)
 				    "alloc_range start offset mismatch, found=%llx, expected=%llx\n",
 							drm_buddy_block_offset(block), offset);
 
-		KUNIT_ASSERT_FALSE(test, igt_check_blocks(test, &mm, &tmp, size, true));
+		KUNIT_ASSERT_FALSE(test, check_blocks(test, &mm, &tmp, size, true));
 
 		list_splice_tail(&tmp, &blocks);
 
@@ -686,12 +686,12 @@ static void igt_buddy_alloc_range(struct kunit *test)
 
 	drm_buddy_free_list(&mm, &blocks);
 
-	KUNIT_EXPECT_FALSE_MSG(test, igt_check_mm(test, &mm), "post-mm check failed\n");
+	KUNIT_EXPECT_FALSE_MSG(test, check_mm(test, &mm), "post-mm check failed\n");
 
 	drm_buddy_fini(&mm);
 }
 
-static void igt_buddy_alloc_limit(struct kunit *test)
+static void drm_test_buddy_alloc_limit(struct kunit *test)
 {
 	u64 size = U64_MAX, start = 0;
 	struct drm_buddy_block *block;
@@ -735,12 +735,12 @@ static int drm_buddy_init_test(struct kunit *test)
 }
 
 static struct kunit_case drm_buddy_tests[] = {
-	KUNIT_CASE(igt_buddy_alloc_limit),
-	KUNIT_CASE(igt_buddy_alloc_range),
-	KUNIT_CASE(igt_buddy_alloc_optimistic),
-	KUNIT_CASE(igt_buddy_alloc_pessimistic),
-	KUNIT_CASE(igt_buddy_alloc_smoke),
-	KUNIT_CASE(igt_buddy_alloc_pathological),
+	KUNIT_CASE(drm_test_buddy_alloc_limit),
+	KUNIT_CASE(drm_test_buddy_alloc_range),
+	KUNIT_CASE(drm_test_buddy_alloc_optimistic),
+	KUNIT_CASE(drm_test_buddy_alloc_pessimistic),
+	KUNIT_CASE(drm_test_buddy_alloc_smoke),
+	KUNIT_CASE(drm_test_buddy_alloc_pathological),
 	{}
 };
 
diff --git a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
index 09b806e27506..34790e7a3760 100644
--- a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
+++ b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
@@ -11,7 +11,7 @@
 
 static const struct drm_connector no_connector = {};
 
-static void drm_cmdline_test_force_e_only(struct kunit *test)
+static void drm_test_cmdline_force_e_only(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "e";
@@ -29,7 +29,7 @@ static void drm_cmdline_test_force_e_only(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_force_D_only_not_digital(struct kunit *test)
+static void drm_test_cmdline_force_D_only_not_digital(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "D";
@@ -51,7 +51,7 @@ static const struct drm_connector connector_hdmi = {
 	.connector_type	= DRM_MODE_CONNECTOR_HDMIB,
 };
 
-static void drm_cmdline_test_force_D_only_hdmi(struct kunit *test)
+static void drm_test_cmdline_force_D_only_hdmi(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "D";
@@ -73,7 +73,7 @@ static const struct drm_connector connector_dvi = {
 	.connector_type	= DRM_MODE_CONNECTOR_DVII,
 };
 
-static void drm_cmdline_test_force_D_only_dvi(struct kunit *test)
+static void drm_test_cmdline_force_D_only_dvi(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "D";
@@ -91,7 +91,7 @@ static void drm_cmdline_test_force_D_only_dvi(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
 }
 
-static void drm_cmdline_test_force_d_only(struct kunit *test)
+static void drm_test_cmdline_force_d_only(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "d";
@@ -109,7 +109,7 @@ static void drm_cmdline_test_force_d_only(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static void drm_cmdline_test_res(struct kunit *test)
+static void drm_test_cmdline_res(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480";
@@ -131,7 +131,7 @@ static void drm_cmdline_test_res(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_vesa(struct kunit *test)
+static void drm_test_cmdline_res_vesa(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480M";
@@ -153,7 +153,7 @@ static void drm_cmdline_test_res_vesa(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_vesa_rblank(struct kunit *test)
+static void drm_test_cmdline_res_vesa_rblank(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480MR";
@@ -175,7 +175,7 @@ static void drm_cmdline_test_res_vesa_rblank(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_rblank(struct kunit *test)
+static void drm_test_cmdline_res_rblank(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480R";
@@ -197,7 +197,7 @@ static void drm_cmdline_test_res_rblank(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bpp(struct kunit *test)
+static void drm_test_cmdline_res_bpp(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24";
@@ -220,7 +220,7 @@ static void drm_cmdline_test_res_bpp(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_refresh(struct kunit *test)
+static void drm_test_cmdline_res_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480@60";
@@ -243,7 +243,7 @@ static void drm_cmdline_test_res_refresh(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bpp_refresh(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60";
@@ -267,7 +267,7 @@ static void drm_cmdline_test_res_bpp_refresh(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_interlaced(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_interlaced(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60i";
@@ -291,7 +291,7 @@ static void drm_cmdline_test_res_bpp_refresh_interlaced(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_margins(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_margins(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60m";
@@ -315,7 +315,7 @@ static void drm_cmdline_test_res_bpp_refresh_margins(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_force_off(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_force_off(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60d";
@@ -339,7 +339,7 @@ static void drm_cmdline_test_res_bpp_refresh_force_off(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_force_on(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60e";
@@ -363,7 +363,7 @@ static void drm_cmdline_test_res_bpp_refresh_force_on(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_force_on_analog(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_force_on_analog(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60D";
@@ -387,7 +387,7 @@ static void drm_cmdline_test_res_bpp_refresh_force_on_analog(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_force_on_digital(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_force_on_digital(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	static const struct drm_connector connector = {
@@ -414,7 +414,7 @@ static void drm_cmdline_test_res_bpp_refresh_force_on_digital(struct kunit *test
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
 }
 
-static void drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on(struct kunit *test)
+static void drm_test_cmdline_res_bpp_refresh_interlaced_margins_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24@60ime";
@@ -438,7 +438,7 @@ static void drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on(struct
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_res_margins_force_on(struct kunit *test)
+static void drm_test_cmdline_res_margins_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480me";
@@ -460,7 +460,7 @@ static void drm_cmdline_test_res_margins_force_on(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_res_vesa_margins(struct kunit *test)
+static void drm_test_cmdline_res_vesa_margins(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480Mm";
@@ -482,7 +482,7 @@ static void drm_cmdline_test_res_vesa_margins(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_name(struct kunit *test)
+static void drm_test_cmdline_name(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "NTSC";
@@ -494,7 +494,7 @@ static void drm_cmdline_test_name(struct kunit *test)
 	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 }
 
-static void drm_cmdline_test_name_bpp(struct kunit *test)
+static void drm_test_cmdline_name_bpp(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "NTSC-24";
@@ -509,7 +509,7 @@ static void drm_cmdline_test_name_bpp(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 }
 
-static void drm_cmdline_test_name_option(struct kunit *test)
+static void drm_test_cmdline_name_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "NTSC,rotate=180";
@@ -521,7 +521,7 @@ static void drm_cmdline_test_name_option(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
 }
 
-static void drm_cmdline_test_name_bpp_option(struct kunit *test)
+static void drm_test_cmdline_name_bpp_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "NTSC-24,rotate=180";
@@ -535,7 +535,7 @@ static void drm_cmdline_test_name_bpp_option(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 }
 
-static void drm_cmdline_test_rotate_0(struct kunit *test)
+static void drm_test_cmdline_rotate_0(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,rotate=0";
@@ -558,7 +558,7 @@ static void drm_cmdline_test_rotate_0(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_rotate_90(struct kunit *test)
+static void drm_test_cmdline_rotate_90(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,rotate=90";
@@ -581,7 +581,7 @@ static void drm_cmdline_test_rotate_90(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_rotate_180(struct kunit *test)
+static void drm_test_cmdline_rotate_180(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,rotate=180";
@@ -604,7 +604,7 @@ static void drm_cmdline_test_rotate_180(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_rotate_270(struct kunit *test)
+static void drm_test_cmdline_rotate_270(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,rotate=270";
@@ -627,7 +627,7 @@ static void drm_cmdline_test_rotate_270(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_hmirror(struct kunit *test)
+static void drm_test_cmdline_hmirror(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,reflect_x";
@@ -650,7 +650,7 @@ static void drm_cmdline_test_hmirror(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_vmirror(struct kunit *test)
+static void drm_test_cmdline_vmirror(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,reflect_y";
@@ -673,7 +673,7 @@ static void drm_cmdline_test_vmirror(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_margin_options(struct kunit *test)
+static void drm_test_cmdline_margin_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline =
@@ -700,7 +700,7 @@ static void drm_cmdline_test_margin_options(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_multiple_options(struct kunit *test)
+static void drm_test_cmdline_multiple_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480,rotate=270,reflect_x";
@@ -723,7 +723,7 @@ static void drm_cmdline_test_multiple_options(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_bpp_extra_and_option(struct kunit *test)
+static void drm_test_cmdline_bpp_extra_and_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480-24e,rotate=180";
@@ -747,7 +747,7 @@ static void drm_cmdline_test_bpp_extra_and_option(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_extra_and_option(struct kunit *test)
+static void drm_test_cmdline_extra_and_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "720x480e,rotate=180";
@@ -769,7 +769,7 @@ static void drm_cmdline_test_extra_and_option(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_freestanding_options(struct kunit *test)
+static void drm_test_cmdline_freestanding_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "margin_right=14,margin_left=24,margin_bottom=36,margin_top=42";
@@ -792,7 +792,7 @@ static void drm_cmdline_test_freestanding_options(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static void drm_cmdline_test_freestanding_force_e_and_options(struct kunit *test)
+static void drm_test_cmdline_freestanding_force_e_and_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "e,margin_right=14,margin_left=24,margin_bottom=36,margin_top=42";
@@ -815,7 +815,7 @@ static void drm_cmdline_test_freestanding_force_e_and_options(struct kunit *test
 	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static void drm_cmdline_test_panel_orientation(struct kunit *test)
+static void drm_test_cmdline_panel_orientation(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
 	const char *cmdline = "panel_orientation=upside_down";
@@ -840,7 +840,7 @@ struct drm_cmdline_invalid_test {
 	const char *cmdline;
 };
 
-static void drm_cmdline_test_invalid(struct kunit *test)
+static void drm_test_cmdline_invalid(struct kunit *test)
 {
 	const struct drm_cmdline_invalid_test *params = test->param_value;
 	struct drm_cmdline_mode mode = { };
@@ -938,45 +938,45 @@ static void drm_cmdline_invalid_desc(const struct drm_cmdline_invalid_test *t,
 KUNIT_ARRAY_PARAM(drm_cmdline_invalid, drm_cmdline_invalid_tests, drm_cmdline_invalid_desc);
 
 static struct kunit_case drm_cmdline_parser_tests[] = {
-	KUNIT_CASE(drm_cmdline_test_force_d_only),
-	KUNIT_CASE(drm_cmdline_test_force_D_only_dvi),
-	KUNIT_CASE(drm_cmdline_test_force_D_only_hdmi),
-	KUNIT_CASE(drm_cmdline_test_force_D_only_not_digital),
-	KUNIT_CASE(drm_cmdline_test_force_e_only),
-	KUNIT_CASE(drm_cmdline_test_res),
-	KUNIT_CASE(drm_cmdline_test_res_vesa),
-	KUNIT_CASE(drm_cmdline_test_res_vesa_rblank),
-	KUNIT_CASE(drm_cmdline_test_res_rblank),
-	KUNIT_CASE(drm_cmdline_test_res_bpp),
-	KUNIT_CASE(drm_cmdline_test_res_refresh),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_margins),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_off),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_analog),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_digital),
-	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on),
-	KUNIT_CASE(drm_cmdline_test_res_margins_force_on),
-	KUNIT_CASE(drm_cmdline_test_res_vesa_margins),
-	KUNIT_CASE(drm_cmdline_test_name),
-	KUNIT_CASE(drm_cmdline_test_name_bpp),
-	KUNIT_CASE(drm_cmdline_test_name_option),
-	KUNIT_CASE(drm_cmdline_test_name_bpp_option),
-	KUNIT_CASE(drm_cmdline_test_rotate_0),
-	KUNIT_CASE(drm_cmdline_test_rotate_90),
-	KUNIT_CASE(drm_cmdline_test_rotate_180),
-	KUNIT_CASE(drm_cmdline_test_rotate_270),
-	KUNIT_CASE(drm_cmdline_test_hmirror),
-	KUNIT_CASE(drm_cmdline_test_vmirror),
-	KUNIT_CASE(drm_cmdline_test_margin_options),
-	KUNIT_CASE(drm_cmdline_test_multiple_options),
-	KUNIT_CASE(drm_cmdline_test_bpp_extra_and_option),
-	KUNIT_CASE(drm_cmdline_test_extra_and_option),
-	KUNIT_CASE(drm_cmdline_test_freestanding_options),
-	KUNIT_CASE(drm_cmdline_test_freestanding_force_e_and_options),
-	KUNIT_CASE(drm_cmdline_test_panel_orientation),
-	KUNIT_CASE_PARAM(drm_cmdline_test_invalid, drm_cmdline_invalid_gen_params),
+	KUNIT_CASE(drm_test_cmdline_force_d_only),
+	KUNIT_CASE(drm_test_cmdline_force_D_only_dvi),
+	KUNIT_CASE(drm_test_cmdline_force_D_only_hdmi),
+	KUNIT_CASE(drm_test_cmdline_force_D_only_not_digital),
+	KUNIT_CASE(drm_test_cmdline_force_e_only),
+	KUNIT_CASE(drm_test_cmdline_res),
+	KUNIT_CASE(drm_test_cmdline_res_vesa),
+	KUNIT_CASE(drm_test_cmdline_res_vesa_rblank),
+	KUNIT_CASE(drm_test_cmdline_res_rblank),
+	KUNIT_CASE(drm_test_cmdline_res_bpp),
+	KUNIT_CASE(drm_test_cmdline_res_refresh),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_interlaced),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_margins),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_force_off),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_force_on),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_force_on_analog),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_force_on_digital),
+	KUNIT_CASE(drm_test_cmdline_res_bpp_refresh_interlaced_margins_force_on),
+	KUNIT_CASE(drm_test_cmdline_res_margins_force_on),
+	KUNIT_CASE(drm_test_cmdline_res_vesa_margins),
+	KUNIT_CASE(drm_test_cmdline_name),
+	KUNIT_CASE(drm_test_cmdline_name_bpp),
+	KUNIT_CASE(drm_test_cmdline_name_option),
+	KUNIT_CASE(drm_test_cmdline_name_bpp_option),
+	KUNIT_CASE(drm_test_cmdline_rotate_0),
+	KUNIT_CASE(drm_test_cmdline_rotate_90),
+	KUNIT_CASE(drm_test_cmdline_rotate_180),
+	KUNIT_CASE(drm_test_cmdline_rotate_270),
+	KUNIT_CASE(drm_test_cmdline_hmirror),
+	KUNIT_CASE(drm_test_cmdline_vmirror),
+	KUNIT_CASE(drm_test_cmdline_margin_options),
+	KUNIT_CASE(drm_test_cmdline_multiple_options),
+	KUNIT_CASE(drm_test_cmdline_bpp_extra_and_option),
+	KUNIT_CASE(drm_test_cmdline_extra_and_option),
+	KUNIT_CASE(drm_test_cmdline_freestanding_options),
+	KUNIT_CASE(drm_test_cmdline_freestanding_force_e_and_options),
+	KUNIT_CASE(drm_test_cmdline_panel_orientation),
+	KUNIT_CASE_PARAM(drm_test_cmdline_invalid, drm_cmdline_invalid_gen_params),
 	{}
 };
 
diff --git a/drivers/gpu/drm/tests/drm_damage_helper_test.c b/drivers/gpu/drm/tests/drm_damage_helper_test.c
index bf250bd08d7e..115034fc3421 100644
--- a/drivers/gpu/drm/tests/drm_damage_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_damage_helper_test.c
@@ -59,6 +59,11 @@ static int drm_damage_helper_init(struct kunit *test)
 static void set_plane_src(struct drm_plane_state *state, int x1, int y1, int x2,
 			  int y2)
 {
+	state->src_x = x1;
+	state->src_y = y1;
+	state->src_w = x2 - x1;
+	state->src_h = y2 - y1;
+
 	state->src.x1 = x1;
 	state->src.y1 = y1;
 	state->src.x2 = x2;
@@ -111,7 +116,7 @@ static void check_damage_clip(struct kunit *test, struct drm_rect *r,
 			   r->x1, r->y1, r->x2, r->y2, x1, y1, x2, y2);
 }
 
-static void igt_damage_iter_no_damage(struct kunit *test)
+static void drm_test_damage_iter_no_damage(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -129,7 +134,7 @@ static void igt_damage_iter_no_damage(struct kunit *test)
 	check_damage_clip(test, &clip, 0, 0, 2048, 2048);
 }
 
-static void igt_damage_iter_no_damage_fractional_src(struct kunit *test)
+static void drm_test_damage_iter_no_damage_fractional_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -150,7 +155,7 @@ static void igt_damage_iter_no_damage_fractional_src(struct kunit *test)
 	check_damage_clip(test, &clip, 3, 3, 1028, 772);
 }
 
-static void igt_damage_iter_no_damage_src_moved(struct kunit *test)
+static void drm_test_damage_iter_no_damage_src_moved(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -169,7 +174,7 @@ static void igt_damage_iter_no_damage_src_moved(struct kunit *test)
 	check_damage_clip(test, &clip, 10, 10, 1034, 778);
 }
 
-static void igt_damage_iter_no_damage_fractional_src_moved(struct kunit *test)
+static void drm_test_damage_iter_no_damage_fractional_src_moved(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -189,7 +194,7 @@ static void igt_damage_iter_no_damage_fractional_src_moved(struct kunit *test)
 	check_damage_clip(test, &clip, 4, 4, 1029, 773);
 }
 
-static void igt_damage_iter_no_damage_not_visible(struct kunit *test)
+static void drm_test_damage_iter_no_damage_not_visible(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -207,7 +212,7 @@ static void igt_damage_iter_no_damage_not_visible(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
 }
 
-static void igt_damage_iter_no_damage_no_crtc(struct kunit *test)
+static void drm_test_damage_iter_no_damage_no_crtc(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -225,7 +230,7 @@ static void igt_damage_iter_no_damage_no_crtc(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
 }
 
-static void igt_damage_iter_no_damage_no_fb(struct kunit *test)
+static void drm_test_damage_iter_no_damage_no_fb(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -243,7 +248,7 @@ static void igt_damage_iter_no_damage_no_fb(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
 }
 
-static void igt_damage_iter_simple_damage(struct kunit *test)
+static void drm_test_damage_iter_simple_damage(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -266,7 +271,7 @@ static void igt_damage_iter_simple_damage(struct kunit *test)
 	check_damage_clip(test, &clip, 0, 0, 1024, 768);
 }
 
-static void igt_damage_iter_single_damage(struct kunit *test)
+static void drm_test_damage_iter_single_damage(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -288,7 +293,7 @@ static void igt_damage_iter_single_damage(struct kunit *test)
 	check_damage_clip(test, &clip, 256, 192, 768, 576);
 }
 
-static void igt_damage_iter_single_damage_intersect_src(struct kunit *test)
+static void drm_test_damage_iter_single_damage_intersect_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -311,7 +316,7 @@ static void igt_damage_iter_single_damage_intersect_src(struct kunit *test)
 	check_damage_clip(test, &clip, 256, 192, 1024, 768);
 }
 
-static void igt_damage_iter_single_damage_outside_src(struct kunit *test)
+static void drm_test_damage_iter_single_damage_outside_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -333,7 +338,7 @@ static void igt_damage_iter_single_damage_outside_src(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
 }
 
-static void igt_damage_iter_single_damage_fractional_src(struct kunit *test)
+static void drm_test_damage_iter_single_damage_fractional_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -358,7 +363,7 @@ static void igt_damage_iter_single_damage_fractional_src(struct kunit *test)
 	check_damage_clip(test, &clip, 10, 10, 256, 330);
 }
 
-static void igt_damage_iter_single_damage_intersect_fractional_src(struct kunit *test)
+static void drm_test_damage_iter_single_damage_intersect_fractional_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -385,7 +390,7 @@ static void igt_damage_iter_single_damage_intersect_fractional_src(struct kunit
 	check_damage_clip(test, &clip, 10, 4, 1029, 330);
 }
 
-static void igt_damage_iter_single_damage_outside_fractional_src(struct kunit *test)
+static void drm_test_damage_iter_single_damage_outside_fractional_src(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -410,7 +415,7 @@ static void igt_damage_iter_single_damage_outside_fractional_src(struct kunit *t
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 0, "Should have no damage.");
 }
 
-static void igt_damage_iter_single_damage_src_moved(struct kunit *test)
+static void drm_test_damage_iter_single_damage_src_moved(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -435,7 +440,7 @@ static void igt_damage_iter_single_damage_src_moved(struct kunit *test)
 	check_damage_clip(test, &clip, 10, 10, 1034, 778);
 }
 
-static void igt_damage_iter_single_damage_fractional_src_moved(struct kunit *test)
+static void drm_test_damage_iter_single_damage_fractional_src_moved(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -462,7 +467,7 @@ static void igt_damage_iter_single_damage_fractional_src_moved(struct kunit *tes
 	check_damage_clip(test, &clip, 4, 4, 1029, 773);
 }
 
-static void igt_damage_iter_damage(struct kunit *test)
+static void drm_test_damage_iter_damage(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -490,7 +495,7 @@ static void igt_damage_iter_damage(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 2, "Should return damage when set.");
 }
 
-static void igt_damage_iter_damage_one_intersect(struct kunit *test)
+static void drm_test_damage_iter_damage_one_intersect(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -520,7 +525,7 @@ static void igt_damage_iter_damage_one_intersect(struct kunit *test)
 	KUNIT_EXPECT_EQ_MSG(test, num_hits, 2, "Should return damage when set.");
 }
 
-static void igt_damage_iter_damage_one_outside(struct kunit *test)
+static void drm_test_damage_iter_damage_one_outside(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -544,7 +549,7 @@ static void igt_damage_iter_damage_one_outside(struct kunit *test)
 	check_damage_clip(test, &clip, 240, 200, 280, 250);
 }
 
-static void igt_damage_iter_damage_src_moved(struct kunit *test)
+static void drm_test_damage_iter_damage_src_moved(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -571,7 +576,7 @@ static void igt_damage_iter_damage_src_moved(struct kunit *test)
 	check_damage_clip(test, &clip, 3, 3, 1028, 772);
 }
 
-static void igt_damage_iter_damage_not_visible(struct kunit *test)
+static void drm_test_damage_iter_damage_not_visible(struct kunit *test)
 {
 	struct drm_damage_mock *mock = test->priv;
 	struct drm_atomic_helper_damage_iter iter;
@@ -599,27 +604,27 @@ static void igt_damage_iter_damage_not_visible(struct kunit *test)
 }
 
 static struct kunit_case drm_damage_helper_tests[] = {
-	KUNIT_CASE(igt_damage_iter_no_damage),
-	KUNIT_CASE(igt_damage_iter_no_damage_fractional_src),
-	KUNIT_CASE(igt_damage_iter_no_damage_src_moved),
-	KUNIT_CASE(igt_damage_iter_no_damage_fractional_src_moved),
-	KUNIT_CASE(igt_damage_iter_no_damage_not_visible),
-	KUNIT_CASE(igt_damage_iter_no_damage_no_crtc),
-	KUNIT_CASE(igt_damage_iter_no_damage_no_fb),
-	KUNIT_CASE(igt_damage_iter_simple_damage),
-	KUNIT_CASE(igt_damage_iter_single_damage),
-	KUNIT_CASE(igt_damage_iter_single_damage_intersect_src),
-	KUNIT_CASE(igt_damage_iter_single_damage_outside_src),
-	KUNIT_CASE(igt_damage_iter_single_damage_fractional_src),
-	KUNIT_CASE(igt_damage_iter_single_damage_intersect_fractional_src),
-	KUNIT_CASE(igt_damage_iter_single_damage_outside_fractional_src),
-	KUNIT_CASE(igt_damage_iter_single_damage_src_moved),
-	KUNIT_CASE(igt_damage_iter_single_damage_fractional_src_moved),
-	KUNIT_CASE(igt_damage_iter_damage),
-	KUNIT_CASE(igt_damage_iter_damage_one_intersect),
-	KUNIT_CASE(igt_damage_iter_damage_one_outside),
-	KUNIT_CASE(igt_damage_iter_damage_src_moved),
-	KUNIT_CASE(igt_damage_iter_damage_not_visible),
+	KUNIT_CASE(drm_test_damage_iter_no_damage),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_fractional_src),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_src_moved),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_fractional_src_moved),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_not_visible),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_no_crtc),
+	KUNIT_CASE(drm_test_damage_iter_no_damage_no_fb),
+	KUNIT_CASE(drm_test_damage_iter_simple_damage),
+	KUNIT_CASE(drm_test_damage_iter_single_damage),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_intersect_src),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_outside_src),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_fractional_src),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_intersect_fractional_src),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_outside_fractional_src),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_src_moved),
+	KUNIT_CASE(drm_test_damage_iter_single_damage_fractional_src_moved),
+	KUNIT_CASE(drm_test_damage_iter_damage),
+	KUNIT_CASE(drm_test_damage_iter_damage_one_intersect),
+	KUNIT_CASE(drm_test_damage_iter_damage_one_outside),
+	KUNIT_CASE(drm_test_damage_iter_damage_src_moved),
+	KUNIT_CASE(drm_test_damage_iter_damage_not_visible),
 	{ }
 };
 
diff --git a/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c b/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c
index 1d2fade56227..65c9d225b558 100644
--- a/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c
@@ -16,7 +16,7 @@
 
 #include "../display/drm_dp_mst_topology_internal.h"
 
-static void igt_dp_mst_calc_pbn_mode(struct kunit *test)
+static void drm_test_dp_mst_calc_pbn_mode(struct kunit *test)
 {
 	int pbn, i;
 	const struct {
@@ -177,7 +177,7 @@ out:
 	return result;
 }
 
-static void igt_dp_mst_sideband_msg_req_decode(struct kunit *test)
+static void drm_test_dp_mst_sideband_msg_req_decode(struct kunit *test)
 {
 	struct drm_dp_sideband_msg_req_body in = { 0 };
 	u8 data[] = { 0xff, 0x0, 0xdd };
@@ -271,8 +271,8 @@ static void igt_dp_mst_sideband_msg_req_decode(struct kunit *test)
 }
 
 static struct kunit_case drm_dp_mst_helper_tests[] = {
-	KUNIT_CASE(igt_dp_mst_calc_pbn_mode),
-	KUNIT_CASE(igt_dp_mst_sideband_msg_req_decode),
+	KUNIT_CASE(drm_test_dp_mst_calc_pbn_mode),
+	KUNIT_CASE(drm_test_dp_mst_sideband_msg_req_decode),
 	{ }
 };
 
diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c
index 828487071796..ab49f5e8796c 100644
--- a/drivers/gpu/drm/tests/drm_format_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_format_helper_test.c
@@ -192,7 +192,7 @@ static void convert_xrgb8888_case_desc(struct convert_xrgb8888_case *t,
 KUNIT_ARRAY_PARAM(convert_xrgb8888, convert_xrgb8888_cases,
 		  convert_xrgb8888_case_desc);
 
-static void xrgb8888_to_rgb332_test(struct kunit *test)
+static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test)
 {
 	const struct convert_xrgb8888_case *params = test->param_value;
 	const struct convert_to_rgb332_result *result = &params->rgb332_result;
@@ -222,7 +222,7 @@ static void xrgb8888_to_rgb332_test(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
 }
 
-static void xrgb8888_to_rgb565_test(struct kunit *test)
+static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test)
 {
 	const struct convert_xrgb8888_case *params = test->param_value;
 	const struct convert_to_rgb565_result *result = &params->rgb565_result;
@@ -256,8 +256,8 @@ static void xrgb8888_to_rgb565_test(struct kunit *test)
 }
 
 static struct kunit_case drm_format_helper_test_cases[] = {
-	KUNIT_CASE_PARAM(xrgb8888_to_rgb332_test, convert_xrgb8888_gen_params),
-	KUNIT_CASE_PARAM(xrgb8888_to_rgb565_test, convert_xrgb8888_gen_params),
+	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb332, convert_xrgb8888_gen_params),
+	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb565, convert_xrgb8888_gen_params),
 	{}
 };
 
diff --git a/drivers/gpu/drm/tests/drm_format_test.c b/drivers/gpu/drm/tests/drm_format_test.c
index afb4bca72187..ec6996ce819a 100644
--- a/drivers/gpu/drm/tests/drm_format_test.c
+++ b/drivers/gpu/drm/tests/drm_format_test.c
@@ -9,103 +9,136 @@
 
 #include <drm/drm_fourcc.h>
 
-static void igt_check_drm_format_block_width(struct kunit *test)
+static void drm_test_format_block_width_invalid(struct kunit *test)
 {
 	const struct drm_format_info *info = NULL;
 
-	/* Test invalid arguments */
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, -1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 1));
-
-	/* Test 1 plane format */
-	info = drm_format_info(DRM_FORMAT_XRGB4444);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, -1));
-
-	/* Test 2 planes format */
-	info = drm_format_info(DRM_FORMAT_NV12);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 0));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 2));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, -1));
-
-	/* Test 3 planes format */
-	info = drm_format_info(DRM_FORMAT_YUV422);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 0));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 1));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_width(info, 2));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 3));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, -1));
-
-	/* Test a tiled format */
-	info = drm_format_info(DRM_FORMAT_X0L0);
-	KUNIT_EXPECT_TRUE(test, info);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
+}
+
+static void drm_test_format_block_width_one_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
+}
+
+static void drm_test_format_block_width_two_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 2), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
+}
+
+static void drm_test_format_block_width_three_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 2), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 3), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
+}
+
+static void drm_test_format_block_width_tiled(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L0);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
 	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 2);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, 1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_width(info, -1));
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
 }
 
-static void igt_check_drm_format_block_height(struct kunit *test)
+static void drm_test_format_block_height_invalid(struct kunit *test)
 {
 	const struct drm_format_info *info = NULL;
 
-	/* Test invalid arguments */
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 1));
-
-	/* Test 1 plane format */
-	info = drm_format_info(DRM_FORMAT_XRGB4444);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 1));
-
-	/* Test 2 planes format */
-	info = drm_format_info(DRM_FORMAT_NV12);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 0));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 2));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1));
-
-	/* Test 3 planes format */
-	info = drm_format_info(DRM_FORMAT_YUV422);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 0));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 1));
-	KUNIT_EXPECT_TRUE(test, drm_format_info_block_height(info, 2));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 3));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1));
-
-	/* Test a tiled format */
-	info = drm_format_info(DRM_FORMAT_X0L0);
-	KUNIT_EXPECT_TRUE(test, info);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
+}
+
+static void drm_test_format_block_height_one_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
+}
+
+static void drm_test_format_block_height_two_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 2), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
+}
+
+static void drm_test_format_block_height_three_plane(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 2), 1);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 3), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
+}
+
+static void drm_test_format_block_height_tiled(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L0);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
 	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 2);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, 1));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_block_height(info, -1));
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
 }
 
-static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test)
+static void drm_test_format_min_pitch_invalid(struct kunit *test)
 {
 	const struct drm_format_info *info = NULL;
 
-	/* Test invalid arguments */
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
+}
+
+static void drm_test_format_min_pitch_one_plane_8bpp(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_RGB332);
 
-	/* Test 1 plane 8 bits per pixel format */
-	info = drm_format_info(DRM_FORMAT_RGB332);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 2);
@@ -118,13 +151,17 @@ static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test)
 			(uint64_t)UINT_MAX);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
 			(uint64_t)(UINT_MAX - 1));
+}
+
+static void drm_test_format_min_pitch_one_plane_16bpp(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
 
-	/* Test 1 plane 16 bits per pixel format */
-	info = drm_format_info(DRM_FORMAT_XRGB4444);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 2);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 4);
@@ -137,13 +174,17 @@ static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test)
 			(uint64_t)UINT_MAX * 2);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
 			(uint64_t)(UINT_MAX - 1) * 2);
+}
+
+static void drm_test_format_min_pitch_one_plane_24bpp(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_RGB888);
 
-	/* Test 1 plane 24 bits per pixel format */
-	info = drm_format_info(DRM_FORMAT_RGB888);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 3);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 6);
@@ -154,15 +195,19 @@ static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 2013);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
 			(uint64_t)UINT_MAX * 3);
-	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX - 1),
 			(uint64_t)(UINT_MAX - 1) * 3);
+}
 
-	/* Test 1 plane 32 bits per pixel format */
-	info = drm_format_info(DRM_FORMAT_ABGR8888);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+static void drm_test_format_min_pitch_one_plane_32bpp(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_ABGR8888);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
+
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 4);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 8);
@@ -173,21 +218,20 @@ static void igt_check_drm_format_min_pitch_for_single_plane(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 2684);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
 			(uint64_t)UINT_MAX * 4);
-	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX - 1),
 			(uint64_t)(UINT_MAX - 1) * 4);
 }
 
-static void igt_check_drm_format_min_pitch_for_multi_planar(struct kunit *test)
+static void drm_test_format_min_pitch_two_plane(struct kunit *test)
 {
-	const struct drm_format_info *info = NULL;
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
 
-	/* Test 2 planes format */
-	info = drm_format_info(DRM_FORMAT_NV12);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 2, 0));
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 1), 2);
@@ -211,15 +255,19 @@ static void igt_check_drm_format_min_pitch_for_multi_planar(struct kunit *test)
 			(uint64_t)(UINT_MAX - 1));
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, (UINT_MAX - 1) /  2),
 			(uint64_t)(UINT_MAX - 1));
+}
+
+static void drm_test_format_min_pitch_three_plane_8bpp(struct kunit *test)
+{
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
 
-	/* Test 3 planes 8 bits per pixel format */
-	info = drm_format_info(DRM_FORMAT_YUV422);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 2, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 3, 0));
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 3, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 1), 1);
@@ -256,16 +304,15 @@ static void igt_check_drm_format_min_pitch_for_multi_planar(struct kunit *test)
 			(uint64_t)(UINT_MAX - 1) / 2);
 }
 
-static void igt_check_drm_format_min_pitch_for_tiled_format(struct kunit *test)
+static void drm_test_format_min_pitch_tiled(struct kunit *test)
 {
-	const struct drm_format_info *info = NULL;
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L2);
+
+	KUNIT_ASSERT_NOT_NULL(test, info);
 
-	/* Test tiled format */
-	info = drm_format_info(DRM_FORMAT_X0L2);
-	KUNIT_EXPECT_TRUE(test, info);
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 0, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, -1, 0));
-	KUNIT_EXPECT_FALSE(test, drm_format_info_min_pitch(info, 1, 0));
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
+	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
 
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 2);
 	KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 4);
@@ -281,12 +328,25 @@ static void igt_check_drm_format_min_pitch_for_tiled_format(struct kunit *test)
 }
 
 static struct kunit_case drm_format_tests[] = {
-	KUNIT_CASE(igt_check_drm_format_block_width),
-	KUNIT_CASE(igt_check_drm_format_block_height),
-	KUNIT_CASE(igt_check_drm_format_min_pitch_for_single_plane),
-	KUNIT_CASE(igt_check_drm_format_min_pitch_for_multi_planar),
-	KUNIT_CASE(igt_check_drm_format_min_pitch_for_tiled_format),
-	{ }
+	KUNIT_CASE(drm_test_format_block_width_invalid),
+	KUNIT_CASE(drm_test_format_block_width_one_plane),
+	KUNIT_CASE(drm_test_format_block_width_two_plane),
+	KUNIT_CASE(drm_test_format_block_width_three_plane),
+	KUNIT_CASE(drm_test_format_block_width_tiled),
+	KUNIT_CASE(drm_test_format_block_height_invalid),
+	KUNIT_CASE(drm_test_format_block_height_one_plane),
+	KUNIT_CASE(drm_test_format_block_height_two_plane),
+	KUNIT_CASE(drm_test_format_block_height_three_plane),
+	KUNIT_CASE(drm_test_format_block_height_tiled),
+	KUNIT_CASE(drm_test_format_min_pitch_invalid),
+	KUNIT_CASE(drm_test_format_min_pitch_one_plane_8bpp),
+	KUNIT_CASE(drm_test_format_min_pitch_one_plane_16bpp),
+	KUNIT_CASE(drm_test_format_min_pitch_one_plane_24bpp),
+	KUNIT_CASE(drm_test_format_min_pitch_one_plane_32bpp),
+	KUNIT_CASE(drm_test_format_min_pitch_two_plane),
+	KUNIT_CASE(drm_test_format_min_pitch_three_plane_8bpp),
+	KUNIT_CASE(drm_test_format_min_pitch_tiled),
+	{}
 };
 
 static struct kunit_suite drm_format_test_suite = {
diff --git a/drivers/gpu/drm/tests/drm_framebuffer_test.c b/drivers/gpu/drm/tests/drm_framebuffer_test.c
index ec7a08ba4056..df235b7fdaa5 100644
--- a/drivers/gpu/drm/tests/drm_framebuffer_test.c
+++ b/drivers/gpu/drm/tests/drm_framebuffer_test.c
@@ -25,7 +25,7 @@ struct drm_framebuffer_test {
 	const char *name;
 };
 
-static struct drm_framebuffer_test createbuffer_tests[] = {
+static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = {
 { .buffer_created = 1, .name = "ABGR8888 normal sizes",
 	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,
 		 .handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },
@@ -330,43 +330,50 @@ static struct drm_mode_config_funcs mock_config_funcs = {
 	.fb_create = fb_create_mock,
 };
 
-static struct drm_device mock_drm_device = {
-	.mode_config = {
-		.min_width = MIN_WIDTH,
-		.max_width = MAX_WIDTH,
-		.min_height = MIN_HEIGHT,
-		.max_height = MAX_HEIGHT,
-		.funcs = &mock_config_funcs,
-	},
-};
+static int drm_framebuffer_test_init(struct kunit *test)
+{
+	struct drm_device *mock;
+
+	mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock);
 
-static int execute_drm_mode_fb_cmd2(struct drm_mode_fb_cmd2 *r)
+	mock->mode_config.min_width = MIN_WIDTH;
+	mock->mode_config.max_width = MAX_WIDTH;
+	mock->mode_config.min_height = MIN_HEIGHT;
+	mock->mode_config.max_height = MAX_HEIGHT;
+	mock->mode_config.funcs = &mock_config_funcs;
+
+	test->priv = mock;
+	return 0;
+}
+
+static void drm_test_framebuffer_create(struct kunit *test)
 {
+	const struct drm_framebuffer_test *params = test->param_value;
+	struct drm_device *mock = test->priv;
 	int buffer_created = 0;
 
-	mock_drm_device.dev_private = &buffer_created;
-	drm_internal_framebuffer_create(&mock_drm_device, r, NULL);
-	return buffer_created;
+	mock->dev_private = &buffer_created;
+	drm_internal_framebuffer_create(mock, &params->cmd, NULL);
+	KUNIT_EXPECT_EQ(test, params->buffer_created, buffer_created);
 }
 
-static void igt_check_drm_framebuffer_create(struct kunit *test)
+static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc)
 {
-	int i = 0;
-
-	for (i = 0; i < ARRAY_SIZE(createbuffer_tests); i++) {
-		KUNIT_EXPECT_EQ_MSG(test, createbuffer_tests[i].buffer_created,
-				    execute_drm_mode_fb_cmd2(&createbuffer_tests[i].cmd),
-		     "Test %d: \"%s\" failed\n", i, createbuffer_tests[i].name);
-	}
+	strcpy(desc, t->name);
 }
 
+KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases,
+		  drm_framebuffer_test_to_desc);
+
 static struct kunit_case drm_framebuffer_tests[] = {
-	KUNIT_CASE(igt_check_drm_framebuffer_create),
+	KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),
 	{ }
 };
 
 static struct kunit_suite drm_framebuffer_test_suite = {
 	.name = "drm_framebuffer",
+	.init = drm_framebuffer_test_init,
 	.test_cases = drm_framebuffer_tests,
 };
 
diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c
index 1e2c1aa524bd..659d1af4dca7 100644
--- a/drivers/gpu/drm/tests/drm_mm_test.c
+++ b/drivers/gpu/drm/tests/drm_mm_test.c
@@ -191,7 +191,7 @@ static bool assert_node(struct kunit *test, struct drm_mm_node *node, struct drm
 	return ok;
 }
 
-static void igt_mm_init(struct kunit *test)
+static void drm_test_mm_init(struct kunit *test)
 {
 	const unsigned int size = 4096;
 	struct drm_mm mm;
@@ -245,7 +245,7 @@ out:
 	drm_mm_takedown(&mm);
 }
 
-static void igt_mm_debug(struct kunit *test)
+static void drm_test_mm_debug(struct kunit *test)
 {
 	struct drm_mm mm;
 	struct drm_mm_node nodes[2];
@@ -341,7 +341,7 @@ static bool check_reserve_boundaries(struct kunit *test, struct drm_mm *mm,
 	return true;
 }
 
-static int __igt_reserve(struct kunit *test, unsigned int count, u64 size)
+static int __drm_test_mm_reserve(struct kunit *test, unsigned int count, u64 size)
 {
 	DRM_RND_STATE(prng, random_seed);
 	struct drm_mm mm;
@@ -349,7 +349,7 @@ static int __igt_reserve(struct kunit *test, unsigned int count, u64 size)
 	unsigned int *order, n, m, o = 0;
 	int ret, err;
 
-	/* For exercising drm_mm_reserve_node(struct kunit *test, ), we want to check that
+	/* For exercising drm_mm_reserve_node(), we want to check that
 	 * reservations outside of the drm_mm range are rejected, and to
 	 * overlapping and otherwise already occupied ranges. Afterwards,
 	 * the tree and nodes should be intact.
@@ -463,7 +463,7 @@ err:
 	return ret;
 }
 
-static void igt_mm_reserve(struct kunit *test)
+static void drm_test_mm_reserve(struct kunit *test)
 {
 	const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
 	int n;
@@ -471,9 +471,9 @@ static void igt_mm_reserve(struct kunit *test)
 	for_each_prime_number_from(n, 1, 54) {
 		u64 size = BIT_ULL(n);
 
-		KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size - 1));
-		KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size));
-		KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size + 1));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size - 1));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size + 1));
 
 		cond_resched();
 	}
@@ -524,7 +524,7 @@ static bool expect_insert_fail(struct kunit *test, struct drm_mm *mm, u64 size)
 	return false;
 }
 
-static int __igt_insert(struct kunit *test, unsigned int count, u64 size, bool replace)
+static int __drm_test_mm_insert(struct kunit *test, unsigned int count, u64 size, bool replace)
 {
 	DRM_RND_STATE(prng, random_seed);
 	const struct insert_mode *mode;
@@ -660,7 +660,7 @@ err_nodes:
 	return ret;
 }
 
-static void igt_mm_insert(struct kunit *test)
+static void drm_test_mm_insert(struct kunit *test)
 {
 	const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
 	unsigned int n;
@@ -668,20 +668,20 @@ static void igt_mm_insert(struct kunit *test)
 	for_each_prime_number_from(n, 1, 54) {
 		u64 size = BIT_ULL(n);
 
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size - 1, false));
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size, false));
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size + 1, false));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size - 1, false));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size, false));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size + 1, false));
 
 		cond_resched();
 	}
 }
 
-static void igt_mm_replace(struct kunit *test)
+static void drm_test_mm_replace(struct kunit *test)
 {
 	const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
 	unsigned int n;
 
-	/* Reuse igt_insert to exercise replacement by inserting a dummy node,
+	/* Reuse __drm_test_mm_insert to exercise replacement by inserting a dummy node,
 	 * then replacing it with the intended node. We want to check that
 	 * the tree is intact and all the information we need is carried
 	 * across to the target node.
@@ -690,9 +690,9 @@ static void igt_mm_replace(struct kunit *test)
 	for_each_prime_number_from(n, 1, 54) {
 		u64 size = BIT_ULL(n);
 
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size - 1, true));
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size, true));
-		KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size + 1, true));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size - 1, true));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size, true));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size + 1, true));
 
 		cond_resched();
 	}
@@ -808,7 +808,8 @@ static bool assert_contiguous_in_range(struct kunit *test, struct drm_mm *mm,
 	return true;
 }
 
-static int __igt_insert_range(struct kunit *test, unsigned int count, u64 size, u64 start, u64 end)
+static int __drm_test_mm_insert_range(struct kunit *test, unsigned int count, u64 size,
+				      u64 start, u64 end)
 {
 	const struct insert_mode *mode;
 	struct drm_mm mm;
@@ -820,7 +821,7 @@ static int __igt_insert_range(struct kunit *test, unsigned int count, u64 size,
 	DRM_MM_BUG_ON(!size);
 	DRM_MM_BUG_ON(end <= start);
 
-	/* Very similar to __igt_insert(struct kunit *test, ), but now instead of populating the
+	/* Very similar to __drm_test_mm_insert(), but now instead of populating the
 	 * full range of the drm_mm, we try to fill a small portion of it.
 	 */
 
@@ -921,7 +922,7 @@ static int insert_outside_range(struct kunit *test)
 	return 0;
 }
 
-static void igt_mm_insert_range(struct kunit *test)
+static void drm_test_mm_insert_range(struct kunit *test)
 {
 	const unsigned int count = min_t(unsigned int, BIT(13), max_iterations);
 	unsigned int n;
@@ -933,21 +934,21 @@ static void igt_mm_insert_range(struct kunit *test)
 		const u64 size = BIT_ULL(n);
 		const u64 max = count * size;
 
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max));
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 1, max));
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max - 1));
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max / 2));
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, max / 2, max / 2));
-		KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size,
-							    max / 4 + 1, 3 * max / 4 - 1));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 1, max));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max - 1));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max / 2));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
+								    max / 2, max / 2));
+		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
+								    max / 4 + 1, 3 * max / 4 - 1));
 
 		cond_resched();
 	}
 }
 
-static int prepare_igt_frag(struct kunit *test, struct drm_mm *mm,
-			    struct drm_mm_node *nodes, unsigned int num_insert,
-			    const struct insert_mode *mode)
+static int prepare_frag(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *nodes,
+			unsigned int num_insert, const struct insert_mode *mode)
 {
 	unsigned int size = 4096;
 	unsigned int i;
@@ -987,7 +988,7 @@ static u64 get_insert_time(struct kunit *test, struct drm_mm *mm,
 	return ktime_to_ns(ktime_sub(ktime_get(), start));
 }
 
-static void igt_mm_frag(struct kunit *test)
+static void drm_test_mm_frag(struct kunit *test)
 {
 	struct drm_mm mm;
 	const struct insert_mode *mode;
@@ -997,15 +998,15 @@ static void igt_mm_frag(struct kunit *test)
 
 	/* We need 4 * insert_size nodes to hold intermediate allocated
 	 * drm_mm nodes.
-	 * 1 times for prepare_igt_frag(struct kunit *test, )
-	 * 1 times for get_insert_time(struct kunit *test, )
-	 * 2 times for get_insert_time(struct kunit *test, )
+	 * 1 times for prepare_frag()
+	 * 1 times for get_insert_time()
+	 * 2 times for get_insert_time()
 	 */
 	nodes = vzalloc(array_size(insert_size * 4, sizeof(*nodes)));
 	KUNIT_ASSERT_TRUE(test, nodes);
 
 	/* For BOTTOMUP and TOPDOWN, we first fragment the
-	 * address space using prepare_igt_frag(struct kunit *test, ) and then try to verify
+	 * address space using prepare_frag() and then try to verify
 	 * that insertions scale quadratically from 10k to 20k insertions
 	 */
 	drm_mm_init(&mm, 1, U64_MAX - 2);
@@ -1016,7 +1017,7 @@ static void igt_mm_frag(struct kunit *test)
 		    mode->mode != DRM_MM_INSERT_HIGH)
 			continue;
 
-		if (prepare_igt_frag(test, &mm, nodes, insert_size, mode))
+		if (prepare_frag(test, &mm, nodes, insert_size, mode))
 			goto err;
 
 		insert_time1 = get_insert_time(test, &mm, insert_size,
@@ -1049,7 +1050,7 @@ err:
 	vfree(nodes);
 }
 
-static void igt_mm_align(struct kunit *test)
+static void drm_test_mm_align(struct kunit *test)
 {
 	const struct insert_mode *mode;
 	const unsigned int max_count = min(8192u, max_prime);
@@ -1096,7 +1097,7 @@ out:
 	vfree(nodes);
 }
 
-static void igt_align_pot(struct kunit *test, int max)
+static void drm_test_mm_align_pot(struct kunit *test, int max)
 {
 	struct drm_mm mm;
 	struct drm_mm_node *node, *next;
@@ -1133,14 +1134,14 @@ out:
 	drm_mm_takedown(&mm);
 }
 
-static void igt_mm_align32(struct kunit *test)
+static void drm_test_mm_align32(struct kunit *test)
 {
-	igt_align_pot(test, 32);
+	drm_test_mm_align_pot(test, 32);
 }
 
-static void igt_mm_align64(struct kunit *test)
+static void drm_test_mm_align64(struct kunit *test)
 {
-	igt_align_pot(test, 64);
+	drm_test_mm_align_pot(test, 64);
 }
 
 static void show_scan(struct kunit *test, const struct drm_mm_scan *scan)
@@ -1386,7 +1387,7 @@ static int evict_something(struct kunit *test, struct drm_mm *mm,
 	return 0;
 }
 
-static void igt_mm_evict(struct kunit *test)
+static void drm_test_mm_evict(struct kunit *test)
 {
 	DRM_RND_STATE(prng, random_seed);
 	const unsigned int size = 8192;
@@ -1477,7 +1478,7 @@ err_nodes:
 	vfree(nodes);
 }
 
-static void igt_mm_evict_range(struct kunit *test)
+static void drm_test_mm_evict_range(struct kunit *test)
 {
 	DRM_RND_STATE(prng, random_seed);
 	const unsigned int size = 8192;
@@ -1490,7 +1491,7 @@ static void igt_mm_evict_range(struct kunit *test)
 	struct drm_mm_node *node, *next;
 	unsigned int *order, n;
 
-	/* Like igt_evict() but now we are limiting the search to a
+	/* Like drm_test_mm_evict() but now we are limiting the search to a
 	 * small portion of the full drm_mm.
 	 */
 
@@ -1564,7 +1565,7 @@ static unsigned int node_index(const struct drm_mm_node *node)
 	return div64_u64(node->start, node->size);
 }
 
-static void igt_mm_topdown(struct kunit *test)
+static void drm_test_mm_topdown(struct kunit *test)
 {
 	const struct insert_mode *topdown = &insert_modes[TOPDOWN];
 
@@ -1671,7 +1672,7 @@ err_nodes:
 	vfree(nodes);
 }
 
-static void igt_mm_bottomup(struct kunit *test)
+static void drm_test_mm_bottomup(struct kunit *test)
 {
 	const struct insert_mode *bottomup = &insert_modes[BOTTOMUP];
 
@@ -1683,7 +1684,7 @@ static void igt_mm_bottomup(struct kunit *test)
 	struct drm_mm_node *nodes, *node, *next;
 	unsigned int *order, n, m, o = 0;
 
-	/* Like igt_topdown, but instead of searching for the last hole,
+	/* Like drm_test_mm_topdown, but instead of searching for the last hole,
 	 * we search for the first.
 	 */
 
@@ -1763,7 +1764,7 @@ err_nodes:
 	vfree(nodes);
 }
 
-static void __igt_once(struct kunit *test, unsigned int mode)
+static void drm_test_mm_once(struct kunit *test, unsigned int mode)
 {
 	struct drm_mm mm;
 	struct drm_mm_node rsvd_lo, rsvd_hi, node;
@@ -1806,14 +1807,14 @@ err:
 	drm_mm_takedown(&mm);
 }
 
-static void igt_mm_lowest(struct kunit *test)
+static void drm_test_mm_lowest(struct kunit *test)
 {
-	__igt_once(test, DRM_MM_INSERT_LOW);
+	drm_test_mm_once(test, DRM_MM_INSERT_LOW);
 }
 
-static void igt_mm_highest(struct kunit *test)
+static void drm_test_mm_highest(struct kunit *test)
 {
-	__igt_once(test, DRM_MM_INSERT_HIGH);
+	drm_test_mm_once(test, DRM_MM_INSERT_HIGH);
 }
 
 static void separate_adjacent_colors(const struct drm_mm_node *node,
@@ -1842,7 +1843,7 @@ static bool colors_abutt(struct kunit *test, const struct drm_mm_node *node)
 	return false;
 }
 
-static void igt_mm_color(struct kunit *test)
+static void drm_test_mm_color(struct kunit *test)
 {
 	const unsigned int count = min(4096u, max_iterations);
 	const struct insert_mode *mode;
@@ -2041,7 +2042,7 @@ static int evict_color(struct kunit *test, struct drm_mm *mm, u64 range_start,
 	return 0;
 }
 
-static void igt_mm_color_evict(struct kunit *test)
+static void drm_test_mm_color_evict(struct kunit *test)
 {
 	DRM_RND_STATE(prng, random_seed);
 	const unsigned int total_size = min(8192u, max_iterations);
@@ -2122,7 +2123,7 @@ err_nodes:
 	vfree(nodes);
 }
 
-static void igt_mm_color_evict_range(struct kunit *test)
+static void drm_test_mm_color_evict_range(struct kunit *test)
 {
 	DRM_RND_STATE(prng, random_seed);
 	const unsigned int total_size = 8192;
@@ -2136,7 +2137,7 @@ static void igt_mm_color_evict_range(struct kunit *test)
 	struct drm_mm_node *node, *next;
 	unsigned int *order, n;
 
-	/* Like igt_color_evict(), but limited to small portion of the full
+	/* Like drm_test_mm_color_evict(), but limited to small portion of the full
 	 * drm_mm range.
 	 */
 
@@ -2221,25 +2222,25 @@ module_param(max_iterations, uint, 0400);
 module_param(max_prime, uint, 0400);
 
 static struct kunit_case drm_mm_tests[] = {
-	KUNIT_CASE(igt_mm_init),
-	KUNIT_CASE(igt_mm_debug),
-	KUNIT_CASE(igt_mm_reserve),
-	KUNIT_CASE(igt_mm_insert),
-	KUNIT_CASE(igt_mm_replace),
-	KUNIT_CASE(igt_mm_insert_range),
-	KUNIT_CASE(igt_mm_frag),
-	KUNIT_CASE(igt_mm_align),
-	KUNIT_CASE(igt_mm_align32),
-	KUNIT_CASE(igt_mm_align64),
-	KUNIT_CASE(igt_mm_evict),
-	KUNIT_CASE(igt_mm_evict_range),
-	KUNIT_CASE(igt_mm_topdown),
-	KUNIT_CASE(igt_mm_bottomup),
-	KUNIT_CASE(igt_mm_lowest),
-	KUNIT_CASE(igt_mm_highest),
-	KUNIT_CASE(igt_mm_color),
-	KUNIT_CASE(igt_mm_color_evict),
-	KUNIT_CASE(igt_mm_color_evict_range),
+	KUNIT_CASE(drm_test_mm_init),
+	KUNIT_CASE(drm_test_mm_debug),
+	KUNIT_CASE(drm_test_mm_reserve),
+	KUNIT_CASE(drm_test_mm_insert),
+	KUNIT_CASE(drm_test_mm_replace),
+	KUNIT_CASE(drm_test_mm_insert_range),
+	KUNIT_CASE(drm_test_mm_frag),
+	KUNIT_CASE(drm_test_mm_align),
+	KUNIT_CASE(drm_test_mm_align32),
+	KUNIT_CASE(drm_test_mm_align64),
+	KUNIT_CASE(drm_test_mm_evict),
+	KUNIT_CASE(drm_test_mm_evict_range),
+	KUNIT_CASE(drm_test_mm_topdown),
+	KUNIT_CASE(drm_test_mm_bottomup),
+	KUNIT_CASE(drm_test_mm_lowest),
+	KUNIT_CASE(drm_test_mm_highest),
+	KUNIT_CASE(drm_test_mm_color),
+	KUNIT_CASE(drm_test_mm_color_evict),
+	KUNIT_CASE(drm_test_mm_color_evict_range),
 	{}
 };
 
diff --git a/drivers/gpu/drm/tests/drm_plane_helper_test.c b/drivers/gpu/drm/tests/drm_plane_helper_test.c
index be6cff0020ed..ec71af791f1f 100644
--- a/drivers/gpu/drm/tests/drm_plane_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_plane_helper_test.c
@@ -73,7 +73,7 @@ static bool check_crtc_eq(struct drm_plane_state *plane_state,
 	return true;
 }
 
-static void igt_check_plane_state(struct kunit *test)
+static void drm_test_check_plane_state(struct kunit *test)
 {
 	int ret;
 
@@ -223,7 +223,7 @@ static void igt_check_plane_state(struct kunit *test)
 }
 
 static struct kunit_case drm_plane_helper_test[] = {
-	KUNIT_CASE(igt_check_plane_state),
+	KUNIT_CASE(drm_test_check_plane_state),
 	{}
 };
 
diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c
index c1dbefd49a4c..e9809ea32696 100644
--- a/drivers/gpu/drm/tests/drm_rect_test.c
+++ b/drivers/gpu/drm/tests/drm_rect_test.c
@@ -9,7 +9,7 @@
 
 #include <drm/drm_rect.h>
 
-static void igt_drm_rect_clip_scaled_div_by_zero(struct kunit *test)
+static void drm_test_rect_clip_scaled_div_by_zero(struct kunit *test)
 {
 	struct drm_rect src, dst, clip;
 	bool visible;
@@ -35,7 +35,7 @@ static void igt_drm_rect_clip_scaled_div_by_zero(struct kunit *test)
 	KUNIT_EXPECT_FALSE_MSG(test, drm_rect_visible(&src), "Source should not be visible\n");
 }
 
-static void igt_drm_rect_clip_scaled_not_clipped(struct kunit *test)
+static void drm_test_rect_clip_scaled_not_clipped(struct kunit *test)
 {
 	struct drm_rect src, dst, clip;
 	bool visible;
@@ -83,7 +83,7 @@ static void igt_drm_rect_clip_scaled_not_clipped(struct kunit *test)
 	KUNIT_EXPECT_TRUE_MSG(test, drm_rect_visible(&src), "Source should be visible\n");
 }
 
-static void igt_drm_rect_clip_scaled_clipped(struct kunit *test)
+static void drm_test_rect_clip_scaled_clipped(struct kunit *test)
 {
 	struct drm_rect src, dst, clip;
 	bool visible;
@@ -173,7 +173,7 @@ static void igt_drm_rect_clip_scaled_clipped(struct kunit *test)
 	KUNIT_EXPECT_TRUE_MSG(test, drm_rect_visible(&src), "Source should be visible\n");
 }
 
-static void igt_drm_rect_clip_scaled_signed_vs_unsigned(struct kunit *test)
+static void drm_test_rect_clip_scaled_signed_vs_unsigned(struct kunit *test)
 {
 	struct drm_rect src, dst, clip;
 	bool visible;
@@ -197,10 +197,10 @@ static void igt_drm_rect_clip_scaled_signed_vs_unsigned(struct kunit *test)
 }
 
 static struct kunit_case drm_rect_tests[] = {
-	KUNIT_CASE(igt_drm_rect_clip_scaled_div_by_zero),
-	KUNIT_CASE(igt_drm_rect_clip_scaled_not_clipped),
-	KUNIT_CASE(igt_drm_rect_clip_scaled_clipped),
-	KUNIT_CASE(igt_drm_rect_clip_scaled_signed_vs_unsigned),
+	KUNIT_CASE(drm_test_rect_clip_scaled_div_by_zero),
+	KUNIT_CASE(drm_test_rect_clip_scaled_not_clipped),
+	KUNIT_CASE(drm_test_rect_clip_scaled_clipped),
+	KUNIT_CASE(drm_test_rect_clip_scaled_signed_vs_unsigned),
 	{ }
 };
 
diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
index b61db8f279e9..afb2879980c6 100644
--- a/drivers/gpu/drm/tidss/tidss_kms.c
+++ b/drivers/gpu/drm/tidss/tidss_kms.c
@@ -70,7 +70,7 @@ static int tidss_atomic_check(struct drm_device *ddev,
 	 * changes. This is needed for updating the plane positions in
 	 * tidss_crtc_position_planes() which is called from
 	 * crtc_atomic_enable() and crtc_atomic_flush(). We have an
-	 * extra flag to to mark x,y-position changes and together
+	 * extra flag to mark x,y-position changes and together
 	 * with zpos_changed the condition recognizes all the above
 	 * cases.
 	 */
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
index 0ccf791301cb..cf77a8ce7398 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
@@ -105,11 +105,10 @@ int tilcdc_plane_init(struct drm_device *dev,
 	struct tilcdc_drm_private *priv = dev->dev_private;
 	int ret;
 
-	ret = drm_plane_init(dev, plane, 1,
-			     &tilcdc_plane_funcs,
-			     priv->pixelformats,
-			     priv->num_pixelformats,
-			     true);
+	ret = drm_universal_plane_init(dev, plane, 1, &tilcdc_plane_funcs,
+				       priv->pixelformats,
+				       priv->num_pixelformats,
+				       NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
 	if (ret) {
 		dev_err(dev->dev, "Failed to initialize plane: %d\n", ret);
 		return ret;
diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index 57f229a785bf..48c24aa8c28a 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -181,6 +181,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = yx240qv29_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/ili9163.c b/drivers/gpu/drm/tiny/ili9163.c
index 86439e50e304..9a1a5943bee0 100644
--- a/drivers/gpu/drm/tiny/ili9163.c
+++ b/drivers/gpu/drm/tiny/ili9163.c
@@ -100,6 +100,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs ili9163_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = yx240qv29_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index b8826a0b086b..69b265e78096 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -137,6 +137,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = yx240qv29_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index a5b433a8e0d8..c80028bb1d11 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -150,6 +150,7 @@ static void waveshare_enable(struct drm_simple_display_pipe *pipe,
 }
 
 static const struct drm_simple_display_pipe_funcs waveshare_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = waveshare_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index 27f1bd4da2f4..bc522fb3d94d 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -141,6 +141,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = mi0283qt_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
index a76fefa8adbc..955a61d628e7 100644
--- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c
+++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
@@ -212,6 +212,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs panel_mipi_dbi_pipe_funcs = {
+	.mode_valid = mipi_dbi_pipe_mode_valid,
 	.enable = panel_mipi_dbi_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index c4c1be3ac0b8..e62f4d16b2c6 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -621,6 +621,15 @@ static void power_off(struct repaper_epd *epd)
 	gpiod_set_value_cansleep(epd->discharge, 0);
 }
 
+static enum drm_mode_status repaper_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
+						    const struct drm_display_mode *mode)
+{
+	struct drm_crtc *crtc = &pipe->crtc;
+	struct repaper_epd *epd = drm_to_epd(crtc->dev);
+
+	return drm_crtc_helper_mode_valid_fixed(crtc, mode, epd->mode);
+}
+
 static void repaper_pipe_enable(struct drm_simple_display_pipe *pipe,
 				struct drm_crtc_state *crtc_state,
 				struct drm_plane_state *plane_state)
@@ -831,6 +840,7 @@ static void repaper_pipe_update(struct drm_simple_display_pipe *pipe,
 }
 
 static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = {
+	.mode_valid = repaper_pipe_mode_valid,
 	.enable = repaper_pipe_enable,
 	.disable = repaper_pipe_disable,
 	.update = repaper_pipe_update,
@@ -839,22 +849,8 @@ static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = {
 static int repaper_connector_get_modes(struct drm_connector *connector)
 {
 	struct repaper_epd *epd = drm_to_epd(connector->dev);
-	struct drm_display_mode *mode;
-
-	mode = drm_mode_duplicate(connector->dev, epd->mode);
-	if (!mode) {
-		DRM_ERROR("Failed to duplicate mode\n");
-		return 0;
-	}
-
-	drm_mode_set_name(mode);
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-	drm_mode_probed_add(connector, mode);
-
-	connector->display_info.width_mm = mode->width_mm;
-	connector->display_info.height_mm = mode->height_mm;
 
-	return 1;
+	return drm_connector_helper_get_modes_fixed(connector, epd->mode);
 }
 
 static const struct drm_connector_helper_funcs repaper_connector_hfuncs = {
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index a81f91814595..ea5b3239a659 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -31,16 +31,6 @@
 #define DRIVER_MINOR	0
 
 /*
- * Assume a monitor resolution of 96 dpi to
- * get a somewhat reasonable screen size.
- */
-#define RES_MM(d)	\
-	(((d) * 254ul) / (96ul * 10ul))
-
-#define SIMPLEDRM_MODE(hd, vd)	\
-	DRM_SIMPLE_MODE(hd, vd, RES_MM(hd), RES_MM(vd))
-
-/*
  * Helpers for simplefb
  */
 
@@ -479,29 +469,6 @@ static const uint64_t simpledrm_primary_plane_format_modifiers[] = {
 	DRM_FORMAT_MOD_INVALID
 };
 
-static int simpledrm_primary_plane_helper_atomic_check(struct drm_plane *plane,
-						       struct drm_atomic_state *new_state)
-{
-	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(new_state, plane);
-	struct drm_crtc *new_crtc = new_plane_state->crtc;
-	struct drm_crtc_state *new_crtc_state = NULL;
-	int ret;
-
-	if (new_crtc)
-		new_crtc_state = drm_atomic_get_new_crtc_state(new_state, new_crtc);
-
-	ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
-						  DRM_PLANE_NO_SCALING,
-						  DRM_PLANE_NO_SCALING,
-						  false, false);
-	if (ret)
-		return ret;
-	else if (!new_plane_state->visible)
-		return 0;
-
-	return 0;
-}
-
 static void simpledrm_primary_plane_helper_atomic_update(struct drm_plane *plane,
 							 struct drm_atomic_state *old_state)
 {
@@ -553,7 +520,7 @@ static void simpledrm_primary_plane_helper_atomic_disable(struct drm_plane *plan
 
 static const struct drm_plane_helper_funcs simpledrm_primary_plane_helper_funcs = {
 	DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
-	.atomic_check = simpledrm_primary_plane_helper_atomic_check,
+	.atomic_check = drm_plane_helper_atomic_check,
 	.atomic_update = simpledrm_primary_plane_helper_atomic_update,
 	.atomic_disable = simpledrm_primary_plane_helper_atomic_disable,
 };
@@ -570,15 +537,7 @@ static enum drm_mode_status simpledrm_crtc_helper_mode_valid(struct drm_crtc *cr
 {
 	struct simpledrm_device *sdev = simpledrm_device_of_dev(crtc->dev);
 
-	if (mode->hdisplay != sdev->mode.hdisplay &&
-	    mode->vdisplay != sdev->mode.vdisplay)
-		return MODE_ONE_SIZE;
-	else if (mode->hdisplay != sdev->mode.hdisplay)
-		return MODE_ONE_WIDTH;
-	else if (mode->vdisplay != sdev->mode.vdisplay)
-		return MODE_ONE_HEIGHT;
-
-	return MODE_OK;
+	return drm_crtc_helper_mode_valid_fixed(crtc, mode, &sdev->mode);
 }
 
 static int simpledrm_crtc_helper_atomic_check(struct drm_crtc *crtc,
@@ -620,24 +579,8 @@ static const struct drm_encoder_funcs simpledrm_encoder_funcs = {
 static int simpledrm_connector_helper_get_modes(struct drm_connector *connector)
 {
 	struct simpledrm_device *sdev = simpledrm_device_of_dev(connector->dev);
-	struct drm_display_mode *mode;
-
-	mode = drm_mode_duplicate(connector->dev, &sdev->mode);
-	if (!mode)
-		return 0;
 
-	if (mode->name[0] == '\0')
-		drm_mode_set_name(mode);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-	drm_mode_probed_add(connector, mode);
-
-	if (mode->width_mm)
-		connector->display_info.width_mm = mode->width_mm;
-	if (mode->height_mm)
-		connector->display_info.height_mm = mode->height_mm;
-
-	return 1;
+	return drm_connector_helper_get_modes_fixed(connector, &sdev->mode);
 }
 
 static const struct drm_connector_helper_funcs simpledrm_connector_helper_funcs = {
@@ -665,51 +608,17 @@ static const struct drm_mode_config_funcs simpledrm_mode_config_funcs = {
 static struct drm_display_mode simpledrm_mode(unsigned int width,
 					      unsigned int height)
 {
-	struct drm_display_mode mode = { SIMPLEDRM_MODE(width, height) };
-
-	mode.clock = mode.hdisplay * mode.vdisplay * 60 / 1000 /* kHz */;
-	drm_mode_set_name(&mode);
-
-	return mode;
-}
-
-static const uint32_t *simpledrm_device_formats(struct simpledrm_device *sdev,
-						size_t *nformats_out)
-{
-	struct drm_device *dev = &sdev->dev;
-	size_t i;
-
-	if (sdev->nformats)
-		goto out; /* don't rebuild list on recurring calls */
-
-	/* native format goes first */
-	sdev->formats[0] = sdev->format->format;
-	sdev->nformats = 1;
-
-	/* default formats go second */
-	for (i = 0; i < ARRAY_SIZE(simpledrm_primary_plane_formats); ++i) {
-		if (simpledrm_primary_plane_formats[i] == sdev->format->format)
-			continue; /* native format already went first */
-		sdev->formats[sdev->nformats] = simpledrm_primary_plane_formats[i];
-		sdev->nformats++;
-	}
-
 	/*
-	 * TODO: The simpledrm driver converts framebuffers to the native
-	 * format when copying them to device memory. If there are more
-	 * formats listed than supported by the driver, the native format
-	 * is not supported by the conversion helpers. Therefore *only*
-	 * support the native format and add a conversion helper ASAP.
+	 * Assume a monitor resolution of 96 dpi to
+	 * get a somewhat reasonable screen size.
 	 */
-	if (drm_WARN_ONCE(dev, i != sdev->nformats,
-			  "format conversion helpers required for %p4cc",
-			  &sdev->format->format)) {
-		sdev->nformats = 1;
-	}
+	const struct drm_display_mode mode = {
+		DRM_MODE_INIT(60, width, height,
+			      DRM_MODE_RES_MM(width, 96ul),
+			      DRM_MODE_RES_MM(height, 96ul))
+	};
 
-out:
-	*nformats_out = sdev->nformats;
-	return sdev->formats;
+	return mode;
 }
 
 static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
@@ -728,7 +637,6 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
 	struct drm_encoder *encoder;
 	struct drm_connector *connector;
 	unsigned long max_width, max_height;
-	const uint32_t *formats;
 	size_t nformats;
 	int ret;
 
@@ -840,11 +748,14 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
 
 	/* Primary plane */
 
-	formats = simpledrm_device_formats(sdev, &nformats);
+	nformats = drm_fb_build_fourcc_list(dev, &format->format, 1,
+					    simpledrm_primary_plane_formats,
+					    ARRAY_SIZE(simpledrm_primary_plane_formats),
+					    sdev->formats, ARRAY_SIZE(sdev->formats));
 
 	primary_plane = &sdev->primary_plane;
 	ret = drm_universal_plane_init(dev, primary_plane, 0, &simpledrm_primary_plane_funcs,
-				       formats, nformats,
+				       sdev->formats, nformats,
 				       simpledrm_primary_plane_format_modifiers,
 				       DRM_PLANE_TYPE_PRIMARY, NULL);
 	if (ret)
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index d2042a0f02dd..c36ba08acda1 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -133,6 +133,7 @@ out_exit:
 }
 
 static const struct drm_simple_display_pipe_funcs st7735r_pipe_funcs = {
+	.mode_valid	= mipi_dbi_pipe_mode_valid,
 	.enable		= st7735r_pipe_enable,
 	.disable	= mipi_dbi_pipe_disable,
 	.update		= mipi_dbi_pipe_update,
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 5703277c6f52..91effdcefb6d 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -21,8 +21,14 @@ static int udl_usb_suspend(struct usb_interface *interface,
 			   pm_message_t message)
 {
 	struct drm_device *dev = usb_get_intfdata(interface);
+	int ret;
 
-	return drm_mode_config_helper_suspend(dev);
+	ret = drm_mode_config_helper_suspend(dev);
+	if (ret)
+		return ret;
+
+	udl_sync_pending_urbs(dev);
+	return 0;
 }
 
 static int udl_usb_resume(struct usb_interface *interface)
@@ -32,6 +38,16 @@ static int udl_usb_resume(struct usb_interface *interface)
 	return drm_mode_config_helper_resume(dev);
 }
 
+static int udl_usb_reset_resume(struct usb_interface *interface)
+{
+	struct drm_device *dev = usb_get_intfdata(interface);
+	struct udl_device *udl = to_udl(dev);
+
+	udl_select_std_channel(udl);
+
+	return drm_mode_config_helper_resume(dev);
+}
+
 /*
  * FIXME: Dma-buf sharing requires DMA support by the importing device.
  *        This function is a workaround to make USB devices work as well.
@@ -140,6 +156,7 @@ static struct usb_driver udl_driver = {
 	.disconnect = udl_usb_disconnect,
 	.suspend = udl_usb_suspend,
 	.resume = udl_usb_resume,
+	.reset_resume = udl_usb_reset_resume,
 	.id_table = id_table,
 };
 module_usb_driver(udl_driver);
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 28aaf75d71cf..b4cc7cc568c7 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -39,7 +39,6 @@ struct urb_node {
 
 struct urb_list {
 	struct list_head list;
-	struct list_head in_flight;
 	spinlock_t lock;
 	wait_queue_head_t sleep;
 	int available;
@@ -75,17 +74,10 @@ static inline struct usb_device *udl_to_usb_device(struct udl_device *udl)
 int udl_modeset_init(struct drm_device *dev);
 struct drm_connector *udl_connector_init(struct drm_device *dev);
 
-struct urb *udl_get_urb_timeout(struct drm_device *dev, long timeout);
-
-#define GET_URB_TIMEOUT	HZ
-static inline struct urb *udl_get_urb(struct drm_device *dev)
-{
-	return udl_get_urb_timeout(dev, GET_URB_TIMEOUT);
-}
+struct urb *udl_get_urb(struct drm_device *dev);
 
 int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
-int udl_sync_pending_urbs(struct drm_device *dev);
-void udl_kill_pending_urbs(struct drm_device *dev);
+void udl_sync_pending_urbs(struct drm_device *dev);
 void udl_urb_completion(struct urb *urb);
 
 int udl_init(struct udl_device *udl);
@@ -95,6 +87,7 @@ int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
 		     u32 byte_offset, u32 device_byte_offset, u32 byte_width);
 
 int udl_drop_usb(struct drm_device *dev);
+int udl_select_std_channel(struct udl_device *udl);
 
 #define CMD_WRITE_RAW8   "\xAF\x60" /**< 8 bit raw write command. */
 #define CMD_WRITE_RL8    "\xAF\x61" /**< 8 bit run length command. */
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index fdafbf8f3c3c..061cb88c08a2 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -20,9 +20,11 @@
 #define NR_USB_REQUEST_CHANNEL 0x12
 
 #define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE)
-#define WRITES_IN_FLIGHT (4)
+#define WRITES_IN_FLIGHT (20)
 #define MAX_VENDOR_DESCRIPTOR_SIZE 256
 
+static struct urb *udl_get_urb_locked(struct udl_device *udl, long timeout);
+
 static int udl_parse_vendor_descriptor(struct udl_device *udl)
 {
 	struct usb_device *udev = udl_to_usb_device(udl);
@@ -92,7 +94,7 @@ success:
 /*
  * Need to ensure a channel is selected before submitting URBs
  */
-static int udl_select_std_channel(struct udl_device *udl)
+int udl_select_std_channel(struct udl_device *udl)
 {
 	static const u8 set_def_chn[] = {0x57, 0xCD, 0xDC, 0xA7,
 					 0x1C, 0x88, 0x5E, 0x15,
@@ -126,6 +128,7 @@ void udl_urb_completion(struct urb *urb)
 	if (urb->status) {
 		if (!(urb->status == -ENOENT ||
 		    urb->status == -ECONNRESET ||
+		    urb->status == -EPROTO ||
 		    urb->status == -ESHUTDOWN)) {
 			DRM_ERROR("%s - nonzero write bulk status received: %d\n",
 				__func__, urb->status);
@@ -135,7 +138,7 @@ void udl_urb_completion(struct urb *urb)
 	urb->transfer_buffer_length = udl->urbs.size; /* reset to actual */
 
 	spin_lock_irqsave(&udl->urbs.lock, flags);
-	list_move(&unode->entry, &udl->urbs.list);
+	list_add_tail(&unode->entry, &udl->urbs.list);
 	udl->urbs.available++;
 	spin_unlock_irqrestore(&udl->urbs.lock, flags);
 
@@ -145,15 +148,17 @@ void udl_urb_completion(struct urb *urb)
 static void udl_free_urb_list(struct drm_device *dev)
 {
 	struct udl_device *udl = to_udl(dev);
-	int count = udl->urbs.count;
 	struct urb_node *unode;
 	struct urb *urb;
 
 	DRM_DEBUG("Waiting for completes and freeing all render urbs\n");
 
 	/* keep waiting and freeing, until we've got 'em all */
-	while (count--) {
-		urb = udl_get_urb_timeout(dev, MAX_SCHEDULE_TIMEOUT);
+	while (udl->urbs.count) {
+		spin_lock_irq(&udl->urbs.lock);
+		urb = udl_get_urb_locked(udl, MAX_SCHEDULE_TIMEOUT);
+		udl->urbs.count--;
+		spin_unlock_irq(&udl->urbs.lock);
 		if (WARN_ON(!urb))
 			break;
 		unode = urb->context;
@@ -163,7 +168,8 @@ static void udl_free_urb_list(struct drm_device *dev)
 		usb_free_urb(urb);
 		kfree(unode);
 	}
-	udl->urbs.count = 0;
+
+	wake_up_all(&udl->urbs.sleep);
 }
 
 static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
@@ -176,16 +182,14 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
 	struct usb_device *udev = udl_to_usb_device(udl);
 
 	spin_lock_init(&udl->urbs.lock);
-
-retry:
-	udl->urbs.size = size;
 	INIT_LIST_HEAD(&udl->urbs.list);
-	INIT_LIST_HEAD(&udl->urbs.in_flight);
-
 	init_waitqueue_head(&udl->urbs.sleep);
 	udl->urbs.count = 0;
 	udl->urbs.available = 0;
 
+retry:
+	udl->urbs.size = size;
+
 	while (udl->urbs.count * size < wanted_size) {
 		unode = kzalloc(sizeof(struct urb_node), GFP_KERNEL);
 		if (!unode)
@@ -228,43 +232,56 @@ retry:
 	return udl->urbs.count;
 }
 
-struct urb *udl_get_urb_timeout(struct drm_device *dev, long timeout)
+static struct urb *udl_get_urb_locked(struct udl_device *udl, long timeout)
 {
-	struct udl_device *udl = to_udl(dev);
-	struct urb_node *unode = NULL;
+	struct urb_node *unode;
 
-	if (!udl->urbs.count)
-		return NULL;
+	assert_spin_locked(&udl->urbs.lock);
 
 	/* Wait for an in-flight buffer to complete and get re-queued */
-	spin_lock_irq(&udl->urbs.lock);
 	if (!wait_event_lock_irq_timeout(udl->urbs.sleep,
+					 !udl->urbs.count ||
 					 !list_empty(&udl->urbs.list),
 					 udl->urbs.lock, timeout)) {
 		DRM_INFO("wait for urb interrupted: available: %d\n",
 			 udl->urbs.available);
-		goto unlock;
+		return NULL;
 	}
 
+	if (!udl->urbs.count)
+		return NULL;
+
 	unode = list_first_entry(&udl->urbs.list, struct urb_node, entry);
-	list_move(&unode->entry, &udl->urbs.in_flight);
+	list_del_init(&unode->entry);
 	udl->urbs.available--;
 
-unlock:
-	spin_unlock_irq(&udl->urbs.lock);
 	return unode ? unode->urb : NULL;
 }
 
+#define GET_URB_TIMEOUT	HZ
+struct urb *udl_get_urb(struct drm_device *dev)
+{
+	struct udl_device *udl = to_udl(dev);
+	struct urb *urb;
+
+	spin_lock_irq(&udl->urbs.lock);
+	urb = udl_get_urb_locked(udl, GET_URB_TIMEOUT);
+	spin_unlock_irq(&udl->urbs.lock);
+	return urb;
+}
+
 int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
 {
 	struct udl_device *udl = to_udl(dev);
 	int ret;
 
-	if (WARN_ON(len > udl->urbs.size))
-		return -EINVAL;
-
+	if (WARN_ON(len > udl->urbs.size)) {
+		ret = -EINVAL;
+		goto error;
+	}
 	urb->transfer_buffer_length = len; /* set to actual payload len */
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
+ error:
 	if (ret) {
 		udl_urb_completion(urb); /* because no one else will */
 		DRM_ERROR("usb_submit_urb error %x\n", ret);
@@ -273,36 +290,17 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
 }
 
 /* wait until all pending URBs have been processed */
-int udl_sync_pending_urbs(struct drm_device *dev)
+void udl_sync_pending_urbs(struct drm_device *dev)
 {
 	struct udl_device *udl = to_udl(dev);
-	int ret = 0;
 
 	spin_lock_irq(&udl->urbs.lock);
 	/* 2 seconds as a sane timeout */
 	if (!wait_event_lock_irq_timeout(udl->urbs.sleep,
-					 list_empty(&udl->urbs.in_flight),
+					 udl->urbs.available == udl->urbs.count,
 					 udl->urbs.lock,
 					 msecs_to_jiffies(2000)))
-		ret = -ETIMEDOUT;
-	spin_unlock_irq(&udl->urbs.lock);
-	return ret;
-}
-
-/* kill pending URBs */
-void udl_kill_pending_urbs(struct drm_device *dev)
-{
-	struct udl_device *udl = to_udl(dev);
-	struct urb_node *unode;
-
-	spin_lock_irq(&udl->urbs.lock);
-	while (!list_empty(&udl->urbs.in_flight)) {
-		unode = list_first_entry(&udl->urbs.in_flight,
-					 struct urb_node, entry);
-		spin_unlock_irq(&udl->urbs.lock);
-		usb_kill_urb(unode->urb);
-		spin_lock_irq(&udl->urbs.lock);
-	}
+		drm_err(dev, "Timeout for syncing pending URBs\n");
 	spin_unlock_irq(&udl->urbs.lock);
 }
 
@@ -354,7 +352,6 @@ int udl_drop_usb(struct drm_device *dev)
 {
 	struct udl_device *udl = to_udl(dev);
 
-	udl_kill_pending_urbs(dev);
 	udl_free_urb_list(dev);
 	put_device(udl->dmadev);
 	udl->dmadev = NULL;
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 169110d8fc2e..ec6876f449f3 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -242,38 +242,15 @@ static long udl_log_cpp(unsigned int cpp)
 	return __ffs(cpp);
 }
 
-static int udl_aligned_damage_clip(struct drm_rect *clip, int x, int y,
-				   int width, int height)
-{
-	int x1, x2;
-
-	if (WARN_ON_ONCE(x < 0) ||
-	    WARN_ON_ONCE(y < 0) ||
-	    WARN_ON_ONCE(width < 0) ||
-	    WARN_ON_ONCE(height < 0))
-		return -EINVAL;
-
-	x1 = ALIGN_DOWN(x, sizeof(unsigned long));
-	x2 = ALIGN(width + (x - x1), sizeof(unsigned long)) + x1;
-
-	clip->x1 = x1;
-	clip->y1 = y;
-	clip->x2 = x2;
-	clip->y2 = y + height;
-
-	return 0;
-}
-
 static int udl_handle_damage(struct drm_framebuffer *fb,
 			     const struct iosys_map *map,
-			     int x, int y, int width, int height)
+			     const struct drm_rect *clip)
 {
 	struct drm_device *dev = fb->dev;
 	void *vaddr = map->vaddr; /* TODO: Use mapping abstraction properly */
 	int i, ret;
 	char *cmd;
 	struct urb *urb;
-	struct drm_rect clip;
 	int log_bpp;
 
 	ret = udl_log_cpp(fb->format->cpp[0]);
@@ -281,12 +258,6 @@ static int udl_handle_damage(struct drm_framebuffer *fb,
 		return ret;
 	log_bpp = ret;
 
-	ret = udl_aligned_damage_clip(&clip, x, y, width, height);
-	if (ret)
-		return ret;
-	else if ((clip.x2 > fb->width) || (clip.y2 > fb->height))
-		return -EINVAL;
-
 	ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
 	if (ret)
 		return ret;
@@ -298,11 +269,11 @@ static int udl_handle_damage(struct drm_framebuffer *fb,
 	}
 	cmd = urb->transfer_buffer;
 
-	for (i = clip.y1; i < clip.y2; i++) {
+	for (i = clip->y1; i < clip->y2; i++) {
 		const int line_offset = fb->pitches[0] * i;
-		const int byte_offset = line_offset + (clip.x1 << log_bpp);
-		const int dev_byte_offset = (fb->width * i + clip.x1) << log_bpp;
-		const int byte_width = (clip.x2 - clip.x1) << log_bpp;
+		const int byte_offset = line_offset + (clip->x1 << log_bpp);
+		const int dev_byte_offset = (fb->width * i + clip->x1) << log_bpp;
+		const int byte_width = drm_rect_width(clip) << log_bpp;
 		ret = udl_render_hline(dev, log_bpp, &urb, (char *)vaddr,
 				       &cmd, byte_offset, dev_byte_offset,
 				       byte_width);
@@ -355,6 +326,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
 	struct udl_device *udl = to_udl(dev);
 	struct drm_display_mode *mode = &crtc_state->mode;
 	struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
+	struct drm_rect clip = DRM_RECT_INIT(0, 0, fb->width, fb->height);
 	char *buf;
 	char *wrptr;
 	int color_depth = UDL_COLOR_DEPTH_16BPP;
@@ -380,10 +352,7 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
 
 	udl->mode_buf_len = wrptr - buf;
 
-	udl_handle_damage(fb, &shadow_plane_state->data[0], 0, 0, fb->width, fb->height);
-
-	if (!crtc_state->mode_changed)
-		return;
+	udl_handle_damage(fb, &shadow_plane_state->data[0], &clip);
 
 	/* enable display */
 	udl_crtc_write_mode_to_hw(crtc);
@@ -397,8 +366,6 @@ udl_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe)
 	struct urb *urb;
 	char *buf;
 
-	udl_kill_pending_urbs(dev);
-
 	urb = udl_get_urb(dev);
 	if (!urb)
 		return;
@@ -410,8 +377,6 @@ udl_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe)
 	buf = udl_dummy_render(buf);
 
 	udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer);
-
-	udl_sync_pending_urbs(dev);
 }
 
 static void
@@ -427,8 +392,7 @@ udl_simple_display_pipe_update(struct drm_simple_display_pipe *pipe,
 		return;
 
 	if (drm_atomic_helper_damage_merged(old_plane_state, state, &rect))
-		udl_handle_damage(fb, &shadow_plane_state->data[0], rect.x1, rect.y1,
-				  rect.x2 - rect.x1, rect.y2 - rect.y1);
+		udl_handle_damage(fb, &shadow_plane_state->data[0], &rect);
 }
 
 static const struct drm_simple_display_pipe_funcs udl_simple_display_pipe_funcs = {
@@ -483,6 +447,7 @@ int udl_modeset_init(struct drm_device *dev)
 					   format_count, NULL, connector);
 	if (ret)
 		return ret;
+	drm_plane_enable_fb_damage_clips(&udl->display_pipe.plane);
 
 	drm_mode_config_reset(dev);
 
diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c
index 176ef2a6a731..b57844632dbd 100644
--- a/drivers/gpu/drm/udl/udl_transfer.c
+++ b/drivers/gpu/drm/udl/udl_transfer.c
@@ -25,46 +25,6 @@
 #define MIN_RAW_PIX_BYTES	2
 #define MIN_RAW_CMD_BYTES	(RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES)
 
-/*
- * Trims identical data from front and back of line
- * Sets new front buffer address and width
- * And returns byte count of identical pixels
- * Assumes CPU natural alignment (unsigned long)
- * for back and front buffer ptrs and width
- */
-#if 0
-static int udl_trim_hline(const u8 *bback, const u8 **bfront, int *width_bytes)
-{
-	int j, k;
-	const unsigned long *back = (const unsigned long *) bback;
-	const unsigned long *front = (const unsigned long *) *bfront;
-	const int width = *width_bytes / sizeof(unsigned long);
-	int identical = width;
-	int start = width;
-	int end = width;
-
-	for (j = 0; j < width; j++) {
-		if (back[j] != front[j]) {
-			start = j;
-			break;
-		}
-	}
-
-	for (k = width - 1; k > j; k--) {
-		if (back[k] != front[k]) {
-			end = k+1;
-			break;
-		}
-	}
-
-	identical = start + (width - end);
-	*bfront = (u8 *) &front[start];
-	*width_bytes = (end - start) * sizeof(unsigned long);
-
-	return identical * sizeof(unsigned long);
-}
-#endif
-
 static inline u16 pixel32_to_be16(const uint32_t pixel)
 {
 	return (((pixel >> 3) & 0x001f) |
@@ -220,8 +180,11 @@ int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
 	u8 *cmd = *urb_buf_ptr;
 	u8 *cmd_end = (u8 *) urb->transfer_buffer + urb->transfer_buffer_length;
 
-	if (WARN_ON(!(log_bpp == 1 || log_bpp == 2)))
+	if (WARN_ON(!(log_bpp == 1 || log_bpp == 2))) {
+		/* need to finish URB at error from this function */
+		udl_urb_completion(urb);
 		return -EINVAL;
+	}
 
 	line_start = (u8 *) (front + byte_offset);
 	next_pixel = line_start;
diff --git a/drivers/gpu/drm/vboxvideo/vboxvideo.h b/drivers/gpu/drm/vboxvideo/vboxvideo.h
index a5de40fe1a76..f60d82504da0 100644
--- a/drivers/gpu/drm/vboxvideo/vboxvideo.h
+++ b/drivers/gpu/drm/vboxvideo/vboxvideo.h
@@ -43,7 +43,7 @@
  * VBE_DISPI_INDEX_VBOX_VIDEO is used to read the configuration information
  * from the host and issue commands to the host.
  *
- * The guest writes the VBE_DISPI_INDEX_VBOX_VIDEO index register, the the
+ * The guest writes the VBE_DISPI_INDEX_VBOX_VIDEO index register, the
  * following operations with the VBE data register can be performed:
  *
  * Operation            Result
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 25299fbc083b..64f9feabf43e 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -124,6 +124,23 @@ static unsigned long long
 vc4_hdmi_encoder_compute_mode_clock(const struct drm_display_mode *mode,
 				    unsigned int bpc, enum vc4_hdmi_output_format fmt);
 
+static bool vc4_hdmi_supports_scrambling(struct drm_encoder *encoder)
+{
+	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+	struct drm_display_info *display = &vc4_hdmi->connector.display_info;
+
+	lockdep_assert_held(&vc4_hdmi->mutex);
+
+	if (!display->is_hdmi)
+		return false;
+
+	if (!display->hdmi.scdc.supported ||
+	    !display->hdmi.scdc.scrambling.supported)
+		return false;
+
+	return true;
+}
+
 static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode,
 					   unsigned int bpc,
 					   enum vc4_hdmi_output_format fmt)
@@ -271,47 +288,172 @@ static void vc4_hdmi_cec_update_clk_div(struct vc4_hdmi *vc4_hdmi)
 static void vc4_hdmi_cec_update_clk_div(struct vc4_hdmi *vc4_hdmi) {}
 #endif
 
-static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder);
+static int reset_pipe(struct drm_crtc *crtc,
+			struct drm_modeset_acquire_ctx *ctx)
+{
+	struct drm_atomic_state *state;
+	struct drm_crtc_state *crtc_state;
+	int ret;
+
+	state = drm_atomic_state_alloc(crtc->dev);
+	if (!state)
+		return -ENOMEM;
 
-static enum drm_connector_status
-vc4_hdmi_connector_detect(struct drm_connector *connector, bool force)
+	state->acquire_ctx = ctx;
+
+	crtc_state = drm_atomic_get_crtc_state(state, crtc);
+	if (IS_ERR(crtc_state)) {
+		ret = PTR_ERR(crtc_state);
+		goto out;
+	}
+
+	crtc_state->connectors_changed = true;
+
+	ret = drm_atomic_commit(state);
+out:
+	drm_atomic_state_put(state);
+
+	return ret;
+}
+
+static int vc4_hdmi_reset_link(struct drm_connector *connector,
+			       struct drm_modeset_acquire_ctx *ctx)
 {
+	struct drm_device *drm = connector->dev;
 	struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
-	bool connected = false;
+	struct drm_encoder *encoder = &vc4_hdmi->encoder.base;
+	struct drm_connector_state *conn_state;
+	struct drm_crtc_state *crtc_state;
+	struct drm_crtc *crtc;
+	bool scrambling_needed;
+	u8 config;
+	int ret;
 
-	mutex_lock(&vc4_hdmi->mutex);
+	if (!connector)
+		return 0;
+
+	ret = drm_modeset_lock(&drm->mode_config.connection_mutex, ctx);
+	if (ret)
+		return ret;
+
+	conn_state = connector->state;
+	crtc = conn_state->crtc;
+	if (!crtc)
+		return 0;
+
+	ret = drm_modeset_lock(&crtc->mutex, ctx);
+	if (ret)
+		return ret;
+
+	crtc_state = crtc->state;
+	if (!crtc_state->active)
+		return 0;
+
+	if (!vc4_hdmi_supports_scrambling(encoder))
+		return 0;
+
+	scrambling_needed = vc4_hdmi_mode_needs_scrambling(&vc4_hdmi->saved_adjusted_mode,
+							   vc4_hdmi->output_bpc,
+							   vc4_hdmi->output_format);
+	if (!scrambling_needed)
+		return 0;
+
+	if (conn_state->commit &&
+	    !try_wait_for_completion(&conn_state->commit->hw_done))
+		return 0;
+
+	ret = drm_scdc_readb(connector->ddc, SCDC_TMDS_CONFIG, &config);
+	if (ret < 0) {
+		drm_err(drm, "Failed to read TMDS config: %d\n", ret);
+		return 0;
+	}
+
+	if (!!(config & SCDC_SCRAMBLING_ENABLE) == scrambling_needed)
+		return 0;
+
+	/*
+	 * HDMI 2.0 says that one should not send scrambled data
+	 * prior to configuring the sink scrambling, and that
+	 * TMDS clock/data transmission should be suspended when
+	 * changing the TMDS clock rate in the sink. So let's
+	 * just do a full modeset here, even though some sinks
+	 * would be perfectly happy if were to just reconfigure
+	 * the SCDC settings on the fly.
+	 */
+	return reset_pipe(crtc, ctx);
+}
+
+static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
+				    struct drm_modeset_acquire_ctx *ctx,
+				    enum drm_connector_status status)
+{
+	struct drm_connector *connector = &vc4_hdmi->connector;
+	struct edid *edid;
+
+	/*
+	 * NOTE: This function should really be called with
+	 * vc4_hdmi->mutex held, but doing so results in reentrancy
+	 * issues since cec_s_phys_addr_from_edid might call
+	 * .adap_enable, which leads to that funtion being called with
+	 * our mutex held.
+	 *
+	 * A similar situation occurs with
+	 * drm_atomic_helper_connector_hdmi_reset_link() that will call
+	 * into our KMS hooks if the scrambling was enabled.
+	 *
+	 * Concurrency isn't an issue at the moment since we don't share
+	 * any state with any of the other frameworks so we can ignore
+	 * the lock for now.
+	 */
+
+	if (status == connector_status_disconnected) {
+		cec_phys_addr_invalidate(vc4_hdmi->cec_adap);
+		return;
+	}
+
+	edid = drm_get_edid(connector, vc4_hdmi->ddc);
+	if (!edid)
+		return;
+
+	cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
+	kfree(edid);
+
+	vc4_hdmi_reset_link(connector, ctx);
+}
+
+static int vc4_hdmi_connector_detect_ctx(struct drm_connector *connector,
+					 struct drm_modeset_acquire_ctx *ctx,
+					 bool force)
+{
+	struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
+	enum drm_connector_status status = connector_status_disconnected;
+
+	/*
+	 * NOTE: This function should really take vc4_hdmi->mutex, but
+	 * doing so results in reentrancy issues since
+	 * vc4_hdmi_handle_hotplug() can call into other functions that
+	 * would take the mutex while it's held here.
+	 *
+	 * Concurrency isn't an issue at the moment since we don't share
+	 * any state with any of the other frameworks so we can ignore
+	 * the lock for now.
+	 */
 
 	WARN_ON(pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev));
 
 	if (vc4_hdmi->hpd_gpio) {
 		if (gpiod_get_value_cansleep(vc4_hdmi->hpd_gpio))
-			connected = true;
+			status = connector_status_connected;
 	} else {
 		if (vc4_hdmi->variant->hp_detect &&
 		    vc4_hdmi->variant->hp_detect(vc4_hdmi))
-			connected = true;
-	}
-
-	if (connected) {
-		if (connector->status != connector_status_connected) {
-			struct edid *edid = drm_get_edid(connector, vc4_hdmi->ddc);
-
-			if (edid) {
-				cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
-				kfree(edid);
-			}
-		}
-
-		vc4_hdmi_enable_scrambling(&vc4_hdmi->encoder.base);
-		pm_runtime_put(&vc4_hdmi->pdev->dev);
-		mutex_unlock(&vc4_hdmi->mutex);
-		return connector_status_connected;
+			status = connector_status_connected;
 	}
 
-	cec_phys_addr_invalidate(vc4_hdmi->cec_adap);
+	vc4_hdmi_handle_hotplug(vc4_hdmi, ctx, status);
 	pm_runtime_put(&vc4_hdmi->pdev->dev);
-	mutex_unlock(&vc4_hdmi->mutex);
-	return connector_status_disconnected;
+
+	return status;
 }
 
 static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
@@ -320,14 +462,21 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	int ret = 0;
 	struct edid *edid;
 
-	mutex_lock(&vc4_hdmi->mutex);
+	/*
+	 * NOTE: This function should really take vc4_hdmi->mutex, but
+	 * doing so results in reentrancy issues since
+	 * cec_s_phys_addr_from_edid might call .adap_enable, which
+	 * leads to that funtion being called with our mutex held.
+	 *
+	 * Concurrency isn't an issue at the moment since we don't share
+	 * any state with any of the other frameworks so we can ignore
+	 * the lock for now.
+	 */
 
 	edid = drm_get_edid(connector, vc4_hdmi->ddc);
 	cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
-	if (!edid) {
-		ret = -ENODEV;
-		goto out;
-	}
+	if (!edid)
+		return -ENODEV;
 
 	drm_connector_update_edid_property(connector, edid);
 	ret = drm_add_edid_modes(connector, edid);
@@ -335,7 +484,7 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 
 	if (vc4_hdmi->disable_4kp60) {
 		struct drm_device *drm = connector->dev;
-		struct drm_display_mode *mode;
+		const struct drm_display_mode *mode;
 
 		list_for_each_entry(mode, &connector->probed_modes, head) {
 			if (vc4_hdmi_mode_needs_scrambling(mode, 8, VC4_HDMI_OUTPUT_RGB)) {
@@ -345,9 +494,6 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 		}
 	}
 
-out:
-	mutex_unlock(&vc4_hdmi->mutex);
-
 	return ret;
 }
 
@@ -419,7 +565,6 @@ vc4_hdmi_connector_duplicate_state(struct drm_connector *connector)
 }
 
 static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
-	.detect = vc4_hdmi_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.reset = vc4_hdmi_connector_reset,
 	.atomic_duplicate_state = vc4_hdmi_connector_duplicate_state,
@@ -427,6 +572,7 @@ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
 };
 
 static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
+	.detect_ctx = vc4_hdmi_connector_detect_ctx,
 	.get_modes = vc4_hdmi_connector_get_modes,
 	.atomic_check = vc4_hdmi_connector_atomic_check,
 };
@@ -708,37 +854,19 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
-static bool vc4_hdmi_supports_scrambling(struct drm_encoder *encoder,
-					 struct drm_display_mode *mode)
-{
-	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
-	struct drm_display_info *display = &vc4_hdmi->connector.display_info;
-
-	lockdep_assert_held(&vc4_hdmi->mutex);
-
-	if (!display->is_hdmi)
-		return false;
-
-	if (!display->hdmi.scdc.supported ||
-	    !display->hdmi.scdc.scrambling.supported)
-		return false;
-
-	return true;
-}
-
 #define SCRAMBLING_POLLING_DELAY_MS	1000
 
 static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
 	struct drm_device *drm = vc4_hdmi->connector.dev;
-	struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
+	const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
 	unsigned long flags;
 	int idx;
 
 	lockdep_assert_held(&vc4_hdmi->mutex);
 
-	if (!vc4_hdmi_supports_scrambling(encoder, mode))
+	if (!vc4_hdmi_supports_scrambling(encoder))
 		return;
 
 	if (!vc4_hdmi_mode_needs_scrambling(mode,
@@ -1077,7 +1205,7 @@ static void vc5_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi,
 
 static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
 				 struct drm_connector_state *state,
-				 struct drm_display_mode *mode)
+				 const struct drm_display_mode *mode)
 {
 	struct drm_device *drm = vc4_hdmi->connector.dev;
 	bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
@@ -1141,7 +1269,7 @@ static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
 
 static void vc5_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
 				 struct drm_connector_state *state,
-				 struct drm_display_mode *mode)
+				 const struct drm_display_mode *mode)
 {
 	struct drm_device *drm = vc4_hdmi->connector.dev;
 	const struct vc4_hdmi_connector_state *vc4_state =
@@ -1303,7 +1431,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 		drm_atomic_get_new_connector_state(state, connector);
 	struct vc4_hdmi_connector_state *vc4_conn_state =
 		conn_state_to_vc4_hdmi_conn_state(conn_state);
-	struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
+	const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
 	unsigned long tmds_char_rate = vc4_conn_state->tmds_char_rate;
 	unsigned long bvb_rate, hsm_rate;
 	unsigned long flags;
@@ -1416,7 +1544,7 @@ static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder,
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
 	struct drm_device *drm = vc4_hdmi->connector.dev;
 	struct drm_connector *connector = &vc4_hdmi->connector;
-	struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
+	const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
 	struct drm_connector_state *conn_state =
 		drm_atomic_get_new_connector_state(state, connector);
 	unsigned long flags;
@@ -1445,7 +1573,7 @@ static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder,
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
 	struct drm_device *drm = vc4_hdmi->connector.dev;
-	struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
+	const struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
 	struct drm_display_info *display = &vc4_hdmi->connector.display_info;
 	bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
 	bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC;
@@ -2668,17 +2796,6 @@ static int vc4_hdmi_cec_enable(struct cec_adapter *adap)
 	int ret;
 	int idx;
 
-	/*
-	 * NOTE: This function should really take vc4_hdmi->mutex, but doing so
-	 * results in a reentrancy since cec_s_phys_addr_from_edid() called in
-	 * .detect or .get_modes might call .adap_enable, which leads to this
-	 * function being called with that mutex held.
-	 *
-	 * Concurrency is not an issue for the moment since we don't share any
-	 * state with KMS, so we can ignore the lock for now, but we need to
-	 * keep it in mind if we were to change that assumption.
-	 */
-
 	if (!drm_dev_enter(drm, &idx))
 		/*
 		 * We can't return an error code, because the CEC
@@ -2693,6 +2810,8 @@ static int vc4_hdmi_cec_enable(struct cec_adapter *adap)
 		return ret;
 	}
 
+	mutex_lock(&vc4_hdmi->mutex);
+
 	spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
 
 	val = HDMI_READ(HDMI_CEC_CNTRL_5);
@@ -2727,6 +2846,7 @@ static int vc4_hdmi_cec_enable(struct cec_adapter *adap)
 
 	spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
 
+	mutex_unlock(&vc4_hdmi->mutex);
 	drm_dev_exit(idx);
 
 	return 0;
@@ -2747,16 +2867,7 @@ static int vc4_hdmi_cec_disable(struct cec_adapter *adap)
 		 */
 		return 0;
 
-	/*
-	 * NOTE: This function should really take vc4_hdmi->mutex, but doing so
-	 * results in a reentrancy since cec_s_phys_addr_from_edid() called in
-	 * .detect or .get_modes might call .adap_enable, which leads to this
-	 * function being called with that mutex held.
-	 *
-	 * Concurrency is not an issue for the moment since we don't share any
-	 * state with KMS, so we can ignore the lock for now, but we need to
-	 * keep it in mind if we were to change that assumption.
-	 */
+	mutex_lock(&vc4_hdmi->mutex);
 
 	spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
 
@@ -2768,6 +2879,8 @@ static int vc4_hdmi_cec_disable(struct cec_adapter *adap)
 
 	spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
 
+	mutex_unlock(&vc4_hdmi->mutex);
+
 	pm_runtime_put(&vc4_hdmi->pdev->dev);
 
 	drm_dev_exit(idx);
@@ -2790,17 +2903,6 @@ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
 	unsigned long flags;
 	int idx;
 
-	/*
-	 * NOTE: This function should really take vc4_hdmi->mutex, but doing so
-	 * results in a reentrancy since cec_s_phys_addr_from_edid() called in
-	 * .detect or .get_modes might call .adap_enable, which leads to this
-	 * function being called with that mutex held.
-	 *
-	 * Concurrency is not an issue for the moment since we don't share any
-	 * state with KMS, so we can ignore the lock for now, but we need to
-	 * keep it in mind if we were to change that assumption.
-	 */
-
 	if (!drm_dev_enter(drm, &idx))
 		/*
 		 * We can't return an error code, because the CEC
@@ -2809,11 +2911,13 @@ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
 		 */
 		return 0;
 
+	mutex_lock(&vc4_hdmi->mutex);
 	spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
 	HDMI_WRITE(HDMI_CEC_CNTRL_1,
 		   (HDMI_READ(HDMI_CEC_CNTRL_1) & ~VC4_HDMI_CEC_ADDR_MASK) |
 		   (log_addr & 0xf) << VC4_HDMI_CEC_ADDR_SHIFT);
 	spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
+	mutex_unlock(&vc4_hdmi->mutex);
 
 	drm_dev_exit(idx);
 
@@ -2830,17 +2934,6 @@ static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
 	unsigned int i;
 	int idx;
 
-	/*
-	 * NOTE: This function should really take vc4_hdmi->mutex, but doing so
-	 * results in a reentrancy since cec_s_phys_addr_from_edid() called in
-	 * .detect or .get_modes might call .adap_enable, which leads to this
-	 * function being called with that mutex held.
-	 *
-	 * Concurrency is not an issue for the moment since we don't share any
-	 * state with KMS, so we can ignore the lock for now, but we need to
-	 * keep it in mind if we were to change that assumption.
-	 */
-
 	if (!drm_dev_enter(dev, &idx))
 		return -ENODEV;
 
@@ -2850,6 +2943,8 @@ static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
 		return -ENOMEM;
 	}
 
+	mutex_lock(&vc4_hdmi->mutex);
+
 	spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
 
 	for (i = 0; i < msg->len; i += 4)
@@ -2869,7 +2964,7 @@ static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
 	HDMI_WRITE(HDMI_CEC_CNTRL_1, val);
 
 	spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
-
+	mutex_unlock(&vc4_hdmi->mutex);
 	drm_dev_exit(idx);
 
 	return 0;
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 99b0bc1297be..db823efb2563 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -72,7 +72,7 @@ struct vc4_hdmi_variant {
 	/* Callback to configure the video timings in the HDMI block */
 	void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
 			    struct drm_connector_state *state,
-			    struct drm_display_mode *mode);
+			    const struct drm_display_mode *mode);
 
 	/* Callback to initialize the PHY according to the connector state */
 	void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
@@ -195,15 +195,7 @@ struct vc4_hdmi {
 
 	/**
 	 * @mutex: Mutex protecting the driver access across multiple
-	 * frameworks (KMS, ALSA).
-	 *
-	 * NOTE: While supported, CEC has been left out since
-	 * cec_s_phys_addr_from_edid() might call .adap_enable and lead to a
-	 * reentrancy issue between .get_modes (or .detect) and .adap_enable.
-	 * Since we don't share any state between the CEC hooks and KMS', it's
-	 * not a big deal. The only trouble might come from updating the CEC
-	 * clock divider which might be affected by a modeset, but CEC should
-	 * be resilient to that.
+	 * frameworks (KMS, ALSA, CEC).
 	 */
 	struct mutex mutex;
 
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index f4319066adcc..c3a845220e10 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -105,11 +105,12 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
 	struct drm_shadow_plane_state *shadow_plane_state;
 	struct drm_framebuffer *fb = new_state->fb;
 	struct vkms_frame_info *frame_info;
-	u32 fmt = fb->format->format;
+	u32 fmt;
 
 	if (!new_state->crtc || !fb)
 		return;
 
+	fmt = fb->format->format;
 	vkms_plane_state = to_vkms_plane_state(new_state);
 	shadow_plane_state = &vkms_plane_state->base;
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index be19aa6e1f13..09e2d738aa87 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -877,7 +877,6 @@ static inline void vmw_user_resource_noref_release(void)
 /**
  * Buffer object helper functions - vmwgfx_bo.c
  */
-extern bool vmw_bo_is_vmw_bo(struct ttm_buffer_object *bo);
 extern int vmw_bo_pin_in_placement(struct vmw_private *vmw_priv,
 				   struct vmw_buffer_object *bo,
 				   struct ttm_placement *placement,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
index 2aceac7856e2..089046fa21be 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -1076,6 +1076,7 @@ int vmw_mksstat_add_ioctl(struct drm_device *dev, void *data,
 
 	if (desc_len < 0) {
 		atomic_set(&dev_priv->mksstat_user_pids[slot], 0);
+		__free_page(page);
 		return -EFAULT;
 	}
 
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index f2f98e942cf2..0cc5ac35fc57 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -93,6 +93,7 @@ config PEAQ_WMI
 
 config NVIDIA_WMI_EC_BACKLIGHT
 	tristate "EC Backlight Driver for Hybrid Graphics Notebook Systems"
+	depends on ACPI_VIDEO
 	depends on ACPI_WMI
 	depends on BACKLIGHT_CLASS_DEVICE
 	help
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index e0230ea0cb7e..b933a5165edb 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -643,69 +643,6 @@ static const struct dmi_system_id non_acer_quirks[] __initconst = {
 	{}
 };
 
-static int __init
-video_set_backlight_video_vendor(const struct dmi_system_id *d)
-{
-	interface->capability &= ~ACER_CAP_BRIGHTNESS;
-	pr_info("Brightness must be controlled by generic video driver\n");
-	return 0;
-}
-
-static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
-	{
-		.callback = video_set_backlight_video_vendor,
-		.ident = "Acer TravelMate 4750",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
-		},
-	},
-	{
-		.callback = video_set_backlight_video_vendor,
-		.ident = "Acer Extensa 5235",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
-		},
-	},
-	{
-		.callback = video_set_backlight_video_vendor,
-		.ident = "Acer TravelMate 5760",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
-		},
-	},
-	{
-		.callback = video_set_backlight_video_vendor,
-		.ident = "Acer Aspire 5750",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
-		},
-	},
-	{
-		.callback = video_set_backlight_video_vendor,
-		.ident = "Acer Aspire 5741",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
-		},
-	},
-	{
-		/*
-		 * Note no video_set_backlight_video_vendor, we must use the
-		 * acer interface, as there is no native backlight interface.
-		 */
-		.ident = "Acer KAV80",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
-		},
-	},
-	{}
-};
-
 /* Find which quirks are needed for a particular vendor/ model pair */
 static void __init find_quirks(void)
 {
@@ -2477,9 +2414,6 @@ static int __init acer_wmi_init(void)
 
 	set_quirks();
 
-	if (dmi_check_system(video_vendor_dmi_table))
-		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-
 	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
 		interface->capability &= ~ACER_CAP_BRIGHTNESS;
 
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index ffe98a18440b..ca33df7ea550 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -21,7 +21,6 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/vga_switcheroo.h>
-#include <acpi/video.h>
 #include <asm/io.h>
 
 /**
@@ -694,7 +693,6 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 	 * backlight control and supports more levels than other options.
 	 * Disable the other backlight choices.
 	 */
-	acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
 	apple_bl_unregister();
 
 	gmux_data->power_state = VGA_SWITCHEROO_ON;
@@ -804,7 +802,6 @@ static void gmux_remove(struct pnp_dev *pnp)
 	apple_gmux_data = NULL;
 	kfree(gmux_data);
 
-	acpi_video_register();
 	apple_bl_register();
 }
 
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 478dd300b9c9..bbfed85051ee 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -79,12 +79,10 @@ static struct quirk_entry quirk_asus_q500a = {
 
 /*
  * For those machines that need software to control bt/wifi status
- * and can't adjust brightness through ACPI interface
  * and have duplicate events(ACPI and WMI) for display toggle
  */
 static struct quirk_entry quirk_asus_x55u = {
 	.wapf = 4,
-	.wmi_backlight_power = true,
 	.wmi_backlight_set_devstate = true,
 	.no_display_toggle = true,
 };
@@ -99,11 +97,6 @@ static struct quirk_entry quirk_asus_x200ca = {
 	.wmi_backlight_set_devstate = true,
 };
 
-static struct quirk_entry quirk_asus_ux303ub = {
-	.wmi_backlight_native = true,
-	.wmi_backlight_set_devstate = true,
-};
-
 static struct quirk_entry quirk_asus_x550lb = {
 	.wmi_backlight_set_devstate = true,
 	.xusb2pr = 0x01D9,
@@ -147,11 +140,6 @@ static const struct dmi_system_id asus_quirks[] = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "U32U"),
 		},
-		/*
-		 * Note this machine has a Brazos APU, and most Brazos Asus
-		 * machines need quirk_asus_x55u / wmi_backlight_power but
-		 * here acpi-video seems to work fine for backlight control.
-		 */
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
@@ -381,15 +369,6 @@ static const struct dmi_system_id asus_quirks[] = {
 	},
 	{
 		.callback = dmi_matched,
-		.ident = "ASUSTeK COMPUTER INC. UX303UB",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
-		},
-		.driver_data = &quirk_asus_ux303ub,
-	},
-	{
-		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. UX330UAK",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 89b604e04d7f..434249ac47a5 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -3553,7 +3553,6 @@ static int asus_wmi_add(struct platform_device *pdev)
 	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
 	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
 	struct asus_wmi *asus;
-	const char *chassis_type;
 	acpi_status status;
 	int err;
 	u32 result;
@@ -3635,18 +3634,6 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (asus->driver->quirks->wmi_force_als_set)
 		asus_wmi_set_als();
 
-	/* Some Asus desktop boards export an acpi-video backlight interface,
-	   stop this from showing up */
-	chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
-	if (chassis_type && !strcmp(chassis_type, "3"))
-		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-
-	if (asus->driver->quirks->wmi_backlight_power)
-		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-
-	if (asus->driver->quirks->wmi_backlight_native)
-		acpi_video_set_dmi_backlight_type(acpi_backlight_native);
-
 	if (asus->driver->quirks->xusb2pr)
 		asus_wmi_set_xusb2pr(asus);
 
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index b302415bf1d9..f30252efe1db 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -29,8 +29,6 @@ struct quirk_entry {
 	bool hotplug_wireless;
 	bool scalar_panel_brightness;
 	bool store_backlight_power;
-	bool wmi_backlight_power;
-	bool wmi_backlight_native;
 	bool wmi_backlight_set_devstate;
 	bool wmi_force_als_set;
 	bool use_kbd_dock_devid;
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index ce86d84ee796..32d9f0ba6be3 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -96,11 +96,6 @@ static struct quirk_entry quirk_asus_et2012_type3 = {
 	.store_backlight_power = true,
 };
 
-static struct quirk_entry quirk_asus_x101ch = {
-	/* We need this when ACPI function doesn't do this well */
-	.wmi_backlight_power = true,
-};
-
 static struct quirk_entry *quirks;
 
 static void et2012_quirks(void)
@@ -151,25 +146,7 @@ static const struct dmi_system_id asus_quirks[] = {
 		},
 		.driver_data = &quirk_asus_unknown,
 	},
-	{
-		.callback = dmi_matched,
-		.ident = "ASUSTeK Computer INC. X101CH",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"),
-		},
-		.driver_data = &quirk_asus_x101ch,
-	},
-	{
-		.callback = dmi_matched,
-		.ident = "ASUSTeK Computer INC. 1015CX",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"),
-		},
-		.driver_data = &quirk_asus_x101ch,
-	},
-	{},
+	{}
 };
 
 static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
diff --git a/drivers/platform/x86/nvidia-wmi-ec-backlight.c b/drivers/platform/x86/nvidia-wmi-ec-backlight.c
index 61e37194df70..baccdf658538 100644
--- a/drivers/platform/x86/nvidia-wmi-ec-backlight.c
+++ b/drivers/platform/x86/nvidia-wmi-ec-backlight.c
@@ -7,73 +7,10 @@
 #include <linux/backlight.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/platform_data/x86/nvidia-wmi-ec-backlight.h>
 #include <linux/types.h>
 #include <linux/wmi.h>
-
-/**
- * enum wmi_brightness_method - WMI method IDs
- * @WMI_BRIGHTNESS_METHOD_LEVEL:  Get/Set EC brightness level status
- * @WMI_BRIGHTNESS_METHOD_SOURCE: Get/Set EC Brightness Source
- */
-enum wmi_brightness_method {
-	WMI_BRIGHTNESS_METHOD_LEVEL = 1,
-	WMI_BRIGHTNESS_METHOD_SOURCE = 2,
-	WMI_BRIGHTNESS_METHOD_MAX
-};
-
-/**
- * enum wmi_brightness_mode - Operation mode for WMI-wrapped method
- * @WMI_BRIGHTNESS_MODE_GET:            Get the current brightness level/source.
- * @WMI_BRIGHTNESS_MODE_SET:            Set the brightness level.
- * @WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL:  Get the maximum brightness level. This
- *                                      is only valid when the WMI method is
- *                                      %WMI_BRIGHTNESS_METHOD_LEVEL.
- */
-enum wmi_brightness_mode {
-	WMI_BRIGHTNESS_MODE_GET = 0,
-	WMI_BRIGHTNESS_MODE_SET = 1,
-	WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL = 2,
-	WMI_BRIGHTNESS_MODE_MAX
-};
-
-/**
- * enum wmi_brightness_source - Backlight brightness control source selection
- * @WMI_BRIGHTNESS_SOURCE_GPU: Backlight brightness is controlled by the GPU.
- * @WMI_BRIGHTNESS_SOURCE_EC:  Backlight brightness is controlled by the
- *                             system's Embedded Controller (EC).
- * @WMI_BRIGHTNESS_SOURCE_AUX: Backlight brightness is controlled over the
- *                             DisplayPort AUX channel.
- */
-enum wmi_brightness_source {
-	WMI_BRIGHTNESS_SOURCE_GPU = 1,
-	WMI_BRIGHTNESS_SOURCE_EC = 2,
-	WMI_BRIGHTNESS_SOURCE_AUX = 3,
-	WMI_BRIGHTNESS_SOURCE_MAX
-};
-
-/**
- * struct wmi_brightness_args - arguments for the WMI-wrapped ACPI method
- * @mode:    Pass in an &enum wmi_brightness_mode value to select between
- *           getting or setting a value.
- * @val:     In parameter for value to set when using %WMI_BRIGHTNESS_MODE_SET
- *           mode. Not used in conjunction with %WMI_BRIGHTNESS_MODE_GET or
- *           %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL mode.
- * @ret:     Out parameter returning retrieved value when operating in
- *           %WMI_BRIGHTNESS_MODE_GET or %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL
- *           mode. Not used in %WMI_BRIGHTNESS_MODE_SET mode.
- * @ignored: Padding; not used. The ACPI method expects a 24 byte params struct.
- *
- * This is the parameters structure for the WmiBrightnessNotify ACPI method as
- * wrapped by WMI. The value passed in to @val or returned by @ret will be a
- * brightness value when the WMI method ID is %WMI_BRIGHTNESS_METHOD_LEVEL, or
- * an &enum wmi_brightness_source value with %WMI_BRIGHTNESS_METHOD_SOURCE.
- */
-struct wmi_brightness_args {
-	u32 mode;
-	u32 val;
-	u32 ret;
-	u32 ignored[3];
-};
+#include <acpi/video.h>
 
 /**
  * wmi_brightness_notify() - helper function for calling WMI-wrapped ACPI method
@@ -151,19 +88,10 @@ static int nvidia_wmi_ec_backlight_probe(struct wmi_device *wdev, const void *ct
 {
 	struct backlight_properties props = {};
 	struct backlight_device *bdev;
-	u32 source;
 	int ret;
 
-	ret = wmi_brightness_notify(wdev, WMI_BRIGHTNESS_METHOD_SOURCE,
-	                           WMI_BRIGHTNESS_MODE_GET, &source);
-	if (ret)
-		return ret;
-
-	/*
-	 * This driver is only to be used when brightness control is handled
-	 * by the EC; otherwise, the GPU driver(s) should control brightness.
-	 */
-	if (source != WMI_BRIGHTNESS_SOURCE_EC)
+	/* drivers/acpi/video_detect.c also checks that SOURCE == EC */
+	if (acpi_video_get_backlight_type() != acpi_backlight_nvidia_wmi_ec)
 		return -ENODEV;
 
 	/*
@@ -191,8 +119,6 @@ static int nvidia_wmi_ec_backlight_probe(struct wmi_device *wdev, const void *ct
 	return PTR_ERR_OR_ZERO(bdev);
 }
 
-#define WMI_BRIGHTNESS_GUID "603E9613-EF25-4338-A3D0-C46177516DB7"
-
 static const struct wmi_device_id nvidia_wmi_ec_backlight_id_table[] = {
 	{ .guid_string = WMI_BRIGHTNESS_GUID },
 	{ }
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index c187dcdf82f0..cc30cf08f32d 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -356,23 +356,13 @@ struct samsung_laptop {
 };
 
 struct samsung_quirks {
-	bool broken_acpi_video;
 	bool four_kbd_backlight_levels;
 	bool enable_kbd_backlight;
-	bool use_native_backlight;
 	bool lid_handling;
 };
 
 static struct samsung_quirks samsung_unknown = {};
 
-static struct samsung_quirks samsung_broken_acpi_video = {
-	.broken_acpi_video = true,
-};
-
-static struct samsung_quirks samsung_use_native_backlight = {
-	.use_native_backlight = true,
-};
-
 static struct samsung_quirks samsung_np740u3e = {
 	.four_kbd_backlight_levels = true,
 	.enable_kbd_backlight = true,
@@ -1542,76 +1532,6 @@ static const struct dmi_system_id samsung_dmi_table[] __initconst = {
 	/* Specific DMI ids for laptop with quirks */
 	{
 	 .callback = samsung_dmi_matched,
-	 .ident = "N150P",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
-		DMI_MATCH(DMI_BOARD_NAME, "N150P"),
-		},
-	 .driver_data = &samsung_use_native_backlight,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "N145P/N250P/N260P",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
-		DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
-		},
-	 .driver_data = &samsung_use_native_backlight,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "N150/N210/N220",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
-		DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
-		},
-	 .driver_data = &samsung_broken_acpi_video,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "NF110/NF210/NF310",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
-		DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
-		},
-	 .driver_data = &samsung_broken_acpi_video,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "X360",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
-		DMI_MATCH(DMI_BOARD_NAME, "X360"),
-		},
-	 .driver_data = &samsung_broken_acpi_video,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "N250P",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "N250P"),
-		DMI_MATCH(DMI_BOARD_NAME, "N250P"),
-		},
-	 .driver_data = &samsung_use_native_backlight,
-	},
-	{
-	 .callback = samsung_dmi_matched,
-	 .ident = "NC210",
-	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"),
-		DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"),
-		},
-	 .driver_data = &samsung_broken_acpi_video,
-	},
-	{
-	 .callback = samsung_dmi_matched,
 	 .ident = "730U3E/740U3E",
 	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
@@ -1654,15 +1574,8 @@ static int __init samsung_init(void)
 	samsung->handle_backlight = true;
 	samsung->quirks = quirks;
 
-#ifdef CONFIG_ACPI
-	if (samsung->quirks->broken_acpi_video)
-		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-	if (samsung->quirks->use_native_backlight)
-		acpi_video_set_dmi_backlight_type(acpi_backlight_native);
-
 	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
 		samsung->handle_backlight = false;
-#endif
 
 	ret = samsung_platform_init(samsung);
 	if (ret)
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 0fc9e8b8827b..030dc37d50b8 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -272,14 +272,6 @@ static const struct key_entry toshiba_acpi_alt_keymap[] = {
 };
 
 /*
- * List of models which have a broken acpi-video backlight interface and thus
- * need to use the toshiba (vendor) interface instead.
- */
-static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
-	{}
-};
-
-/*
  * Utility
  */
 
@@ -2881,14 +2873,6 @@ static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
 		return 0;
 	}
 
-	/*
-	 * Tell acpi-video-detect code to prefer vendor backlight on all
-	 * systems with transflective backlight and on dmi matched systems.
-	 */
-	if (dev->tr_backlight_supported ||
-	    dmi_check_system(toshiba_vendor_backlight_dmi))
-		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-
 	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
 		return 0;
 
diff --git a/include/acpi/video.h b/include/acpi/video.h
index db8548ff03ce..a275c35e5249 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -48,15 +48,18 @@ enum acpi_backlight_type {
 	acpi_backlight_video,
 	acpi_backlight_vendor,
 	acpi_backlight_native,
+	acpi_backlight_nvidia_wmi_ec,
+	acpi_backlight_apple_gmux,
 };
 
 #if IS_ENABLED(CONFIG_ACPI_VIDEO)
 extern int acpi_video_register(void);
 extern void acpi_video_unregister(void);
+extern void acpi_video_register_backlight(void);
 extern int acpi_video_get_edid(struct acpi_device *device, int type,
 			       int device_id, void **edid);
 extern enum acpi_backlight_type acpi_video_get_backlight_type(void);
-extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type);
+extern bool acpi_video_backlight_use_native(void);
 /*
  * Note: The value returned by acpi_video_handles_brightness_key_presses()
  * may change over time and should not be cached.
@@ -68,6 +71,7 @@ extern int acpi_video_get_levels(struct acpi_device *device,
 #else
 static inline int acpi_video_register(void) { return -ENODEV; }
 static inline void acpi_video_unregister(void) { return; }
+static inline void acpi_video_register_backlight(void) { return; }
 static inline int acpi_video_get_edid(struct acpi_device *device, int type,
 				      int device_id, void **edid)
 {
@@ -77,8 +81,9 @@ static inline enum acpi_backlight_type acpi_video_get_backlight_type(void)
 {
 	return acpi_backlight_vendor;
 }
-static inline void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type)
+static inline bool acpi_video_backlight_use_native(void)
 {
+	return true;
 }
 static inline bool acpi_video_handles_brightness_key_presses(void)
 {
diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h
index caa181194335..eb5c98cf82b8 100644
--- a/include/drm/drm_format_helper.h
+++ b/include/drm/drm_format_helper.h
@@ -6,11 +6,15 @@
 #ifndef __LINUX_DRM_FORMAT_HELPER_H
 #define __LINUX_DRM_FORMAT_HELPER_H
 
-struct iosys_map;
+#include <linux/types.h>
+
+struct drm_device;
 struct drm_format_info;
 struct drm_framebuffer;
 struct drm_rect;
 
+struct iosys_map;
+
 unsigned int drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info *format,
 				const struct drm_rect *clip);
 
@@ -44,4 +48,9 @@ void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitc
 			     const struct iosys_map *src, const struct drm_framebuffer *fb,
 			     const struct drm_rect *clip);
 
+size_t drm_fb_build_fourcc_list(struct drm_device *dev,
+				const u32 *native_fourccs, size_t native_nfourccs,
+				const u32 *extra_fourccs, size_t extra_nfourccs,
+				u32 *fourccs_out, size_t nfourccs_out);
+
 #endif /* __LINUX_DRM_FORMAT_HELPER_H */
diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h
index dad2f187b64b..14eaecb1825c 100644
--- a/include/drm/drm_mipi_dbi.h
+++ b/include/drm/drm_mipi_dbi.h
@@ -155,6 +155,8 @@ int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev,
 int mipi_dbi_dev_init(struct mipi_dbi_dev *dbidev,
 		      const struct drm_simple_display_pipe_funcs *funcs,
 		      const struct drm_display_mode *mode, unsigned int rotation);
+enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
+					      const struct drm_display_mode *mode);
 void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
 			  struct drm_plane_state *old_state);
 void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index a80ae9639e96..b0c680e6f670 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -139,6 +139,35 @@ enum drm_mode_status {
 	.vscan = (vs), .flags = (f)
 
 /**
+ * DRM_MODE_RES_MM - Calculates the display size from resolution and DPI
+ * @res: The resolution in pixel
+ * @dpi: The number of dots per inch
+ */
+#define DRM_MODE_RES_MM(res, dpi)	\
+	(((res) * 254ul) / ((dpi) * 10ul))
+
+#define __DRM_MODE_INIT(pix, hd, vd, hd_mm, vd_mm) \
+	.type = DRM_MODE_TYPE_DRIVER, .clock = (pix), \
+	.hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \
+	.htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \
+	.vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \
+	.height_mm = (vd_mm)
+
+/**
+ * DRM_MODE_INIT - Initialize display mode
+ * @hz: Vertical refresh rate in Hertz
+ * @hd: Horizontal resolution, width
+ * @vd: Vertical resolution, height
+ * @hd_mm: Display width in millimeters
+ * @vd_mm: Display height in millimeters
+ *
+ * This macro initializes a &drm_display_mode that contains information about
+ * refresh rate, resolution and physical size.
+ */
+#define DRM_MODE_INIT(hz, hd, vd, hd_mm, vd_mm) \
+	__DRM_MODE_INIT((hd) * (vd) * (hz) / 1000 /* kHz */, hd, vd, hd_mm, vd_mm)
+
+/**
  * DRM_SIMPLE_MODE - Simple display mode
  * @hd: Horizontal resolution, width
  * @vd: Vertical resolution, height
@@ -149,11 +178,7 @@ enum drm_mode_status {
  * resolution and physical size.
  */
 #define DRM_SIMPLE_MODE(hd, vd, hd_mm, vd_mm) \
-	.type = DRM_MODE_TYPE_DRIVER, .clock = 1 /* pass validation */, \
-	.hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \
-	.htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \
-	.vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \
-	.height_mm = (vd_mm)
+	__DRM_MODE_INIT(1 /* pass validation */, hd, vd, hd_mm, vd_mm)
 
 #define CRTC_INTERLACE_HALVE_V	(1 << 0) /* halve V values for interlacing */
 #define CRTC_STEREO_DOUBLE	(1 << 1) /* adjust timings for stereo modes */
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 89ea54652e87..447e664e49d5 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -631,7 +631,7 @@ struct drm_plane {
 	unsigned int format_count;
 	/**
 	 * @format_default: driver hasn't supplied supported formats for the
-	 * plane. Used by the drm_plane_init compatibility wrapper only.
+	 * plane. Used by the non-atomic driver compatibility wrapper only.
 	 */
 	bool format_default;
 
@@ -762,12 +762,6 @@ int drm_universal_plane_init(struct drm_device *dev,
 			     const uint64_t *format_modifiers,
 			     enum drm_plane_type type,
 			     const char *name, ...);
-int drm_plane_init(struct drm_device *dev,
-		   struct drm_plane *plane,
-		   uint32_t possible_crtcs,
-		   const struct drm_plane_funcs *funcs,
-		   const uint32_t *formats, unsigned int format_count,
-		   bool is_primary);
 void drm_plane_cleanup(struct drm_plane *plane);
 
 __printf(10, 11)
@@ -815,6 +809,50 @@ void *__drmm_universal_plane_alloc(struct drm_device *dev,
 					      format_count, format_modifiers, \
 					      plane_type, name, ##__VA_ARGS__))
 
+__printf(10, 11)
+void *__drm_universal_plane_alloc(struct drm_device *dev,
+				  size_t size, size_t offset,
+				  uint32_t possible_crtcs,
+				  const struct drm_plane_funcs *funcs,
+				  const uint32_t *formats,
+				  unsigned int format_count,
+				  const uint64_t *format_modifiers,
+				  enum drm_plane_type plane_type,
+				  const char *name, ...);
+
+/**
+ * drm_universal_plane_alloc() - Allocate and initialize an universal plane object
+ * @dev: DRM device
+ * @type: the type of the struct which contains struct &drm_plane
+ * @member: the name of the &drm_plane within @type
+ * @possible_crtcs: bitmask of possible CRTCs
+ * @funcs: callbacks for the new plane
+ * @formats: array of supported formats (DRM_FORMAT\_\*)
+ * @format_count: number of elements in @formats
+ * @format_modifiers: array of struct drm_format modifiers terminated by
+ *                    DRM_FORMAT_MOD_INVALID
+ * @plane_type: type of plane (overlay, primary, cursor)
+ * @name: printf style format string for the plane name, or NULL for default name
+ *
+ * Allocates and initializes a plane object of type @type. The caller
+ * is responsible for releasing the allocated memory with kfree().
+ *
+ * Drivers are encouraged to use drmm_universal_plane_alloc() instead.
+ *
+ * Drivers that only support the DRM_FORMAT_MOD_LINEAR modifier support may set
+ * @format_modifiers to NULL. The plane will advertise the linear modifier.
+ *
+ * Returns:
+ * Pointer to new plane, or ERR_PTR on failure.
+ */
+#define drm_universal_plane_alloc(dev, type, member, possible_crtcs, funcs, formats, \
+				   format_count, format_modifiers, plane_type, name, ...) \
+	((type *)__drm_universal_plane_alloc(dev, sizeof(type), \
+					     offsetof(type, member), \
+					     possible_crtcs, funcs, formats, \
+					     format_count, format_modifiers, \
+					     plane_type, name, ##__VA_ARGS__))
+
 /**
  * drm_plane_index - find the index of a registered plane
  * @plane: plane to find index for
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 1781fab24dd6..ff83d2621687 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -41,5 +41,18 @@ int drm_plane_helper_update_primary(struct drm_plane *plane, struct drm_crtc *cr
 int drm_plane_helper_disable_primary(struct drm_plane *plane,
 				     struct drm_modeset_acquire_ctx *ctx);
 void drm_plane_helper_destroy(struct drm_plane *plane);
+int drm_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state);
+
+/**
+ * DRM_PLANE_NON_ATOMIC_FUNCS - Default plane functions for non-atomic drivers
+ *
+ * This macro initializes plane functions for non-atomic drivers to default
+ * values. Non-atomic interfaces are deprecated and should not be used in new
+ * drivers.
+ */
+#define DRM_PLANE_NON_ATOMIC_FUNCS \
+	.update_plane = drm_plane_helper_update_primary, \
+	.disable_plane = drm_plane_helper_disable_primary, \
+	.destroy = drm_plane_helper_destroy
 
 #endif
diff --git a/include/drm/drm_probe_helper.h b/include/drm/drm_probe_helper.h
index 8075e02aa865..5880daa14624 100644
--- a/include/drm/drm_probe_helper.h
+++ b/include/drm/drm_probe_helper.h
@@ -3,9 +3,10 @@
 #ifndef __DRM_PROBE_HELPER_H__
 #define __DRM_PROBE_HELPER_H__
 
-#include <linux/types.h>
+#include <drm/drm_modes.h>
 
 struct drm_connector;
+struct drm_crtc;
 struct drm_device;
 struct drm_modeset_acquire_ctx;
 
@@ -26,7 +27,13 @@ void drm_kms_helper_poll_disable(struct drm_device *dev);
 void drm_kms_helper_poll_enable(struct drm_device *dev);
 bool drm_kms_helper_is_poll_worker(void);
 
+enum drm_mode_status drm_crtc_helper_mode_valid_fixed(struct drm_crtc *crtc,
+						      const struct drm_display_mode *mode,
+						      const struct drm_display_mode *fixed_mode);
+
 int drm_connector_helper_get_modes_from_ddc(struct drm_connector *connector);
+int drm_connector_helper_get_modes_fixed(struct drm_connector *connector,
+					 const struct drm_display_mode *fixed_mode);
 int drm_connector_helper_get_modes(struct drm_connector *connector);
 
 #endif
diff --git a/include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h b/include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h
new file mode 100644
index 000000000000..23d60130272c
--- /dev/null
+++ b/include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020, NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
+#define __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
+
+#define WMI_BRIGHTNESS_GUID "603E9613-EF25-4338-A3D0-C46177516DB7"
+
+/**
+ * enum wmi_brightness_method - WMI method IDs
+ * @WMI_BRIGHTNESS_METHOD_LEVEL:  Get/Set EC brightness level status
+ * @WMI_BRIGHTNESS_METHOD_SOURCE: Get/Set EC Brightness Source
+ */
+enum wmi_brightness_method {
+	WMI_BRIGHTNESS_METHOD_LEVEL = 1,
+	WMI_BRIGHTNESS_METHOD_SOURCE = 2,
+	WMI_BRIGHTNESS_METHOD_MAX
+};
+
+/**
+ * enum wmi_brightness_mode - Operation mode for WMI-wrapped method
+ * @WMI_BRIGHTNESS_MODE_GET:            Get the current brightness level/source.
+ * @WMI_BRIGHTNESS_MODE_SET:            Set the brightness level.
+ * @WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL:  Get the maximum brightness level. This
+ *                                      is only valid when the WMI method is
+ *                                      %WMI_BRIGHTNESS_METHOD_LEVEL.
+ */
+enum wmi_brightness_mode {
+	WMI_BRIGHTNESS_MODE_GET = 0,
+	WMI_BRIGHTNESS_MODE_SET = 1,
+	WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL = 2,
+	WMI_BRIGHTNESS_MODE_MAX
+};
+
+/**
+ * enum wmi_brightness_source - Backlight brightness control source selection
+ * @WMI_BRIGHTNESS_SOURCE_GPU: Backlight brightness is controlled by the GPU.
+ * @WMI_BRIGHTNESS_SOURCE_EC:  Backlight brightness is controlled by the
+ *                             system's Embedded Controller (EC).
+ * @WMI_BRIGHTNESS_SOURCE_AUX: Backlight brightness is controlled over the
+ *                             DisplayPort AUX channel.
+ */
+enum wmi_brightness_source {
+	WMI_BRIGHTNESS_SOURCE_GPU = 1,
+	WMI_BRIGHTNESS_SOURCE_EC = 2,
+	WMI_BRIGHTNESS_SOURCE_AUX = 3,
+	WMI_BRIGHTNESS_SOURCE_MAX
+};
+
+/**
+ * struct wmi_brightness_args - arguments for the WMI-wrapped ACPI method
+ * @mode:    Pass in an &enum wmi_brightness_mode value to select between
+ *           getting or setting a value.
+ * @val:     In parameter for value to set when using %WMI_BRIGHTNESS_MODE_SET
+ *           mode. Not used in conjunction with %WMI_BRIGHTNESS_MODE_GET or
+ *           %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL mode.
+ * @ret:     Out parameter returning retrieved value when operating in
+ *           %WMI_BRIGHTNESS_MODE_GET or %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL
+ *           mode. Not used in %WMI_BRIGHTNESS_MODE_SET mode.
+ * @ignored: Padding; not used. The ACPI method expects a 24 byte params struct.
+ *
+ * This is the parameters structure for the WmiBrightnessNotify ACPI method as
+ * wrapped by WMI. The value passed in to @val or returned by @ret will be a
+ * brightness value when the WMI method ID is %WMI_BRIGHTNESS_METHOD_LEVEL, or
+ * an &enum wmi_brightness_source value with %WMI_BRIGHTNESS_METHOD_SOURCE.
+ */
+struct wmi_brightness_args {
+	u32 mode;
+	u32 val;
+	u32 ret;
+	u32 ignored[3];
+};
+
+#endif