Merge branch 'for-next' into for-linus

Pull 5.18 development branch

Signed-off-by: Takashi Iwai <tiwai@suse.de>

38 files changed, 1582 insertions, 493 deletions

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.yaml
index 2c913aa44fee..12c31b4b99e1 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.yaml
@@ -23,6 +23,7 @@ properties:
       - const: nvidia,tegra30-hda
       - items:
           - enum:
+              - nvidia,tegra234-hda
               - nvidia,tegra194-hda
               - nvidia,tegra186-hda
               - nvidia,tegra210-hda
@@ -41,9 +42,11 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 2
     maxItems: 3
 
   clock-names:
+    minItems: 2
     items:
       - const: hda
       - const: hda2hdmi
diff --git a/Documentation/sound/designs/control-names.rst b/Documentation/sound/designs/control-names.rst
index 7fedd0f33cd9..765ff9b5b7d9 100644
--- a/Documentation/sound/designs/control-names.rst
+++ b/Documentation/sound/designs/control-names.rst
@@ -34,7 +34,7 @@ CHANNEL
 Front		front left/right channels
 Surround	rear left/right in 4.0/5.1 surround
 CLFE		C/LFE channels
-Center		center cannel
+Center		center channel
 LFE		LFE channel
 Side		side left/right for 7.1 surround
 ============	==================================================
diff --git a/MAINTAINERS b/MAINTAINERS
index 8bfe50c6220b..0fae57eaf728 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -388,11 +388,11 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/acpi/arm64
 
-ACPI I2C MULTI INSTANTIATE DRIVER
+ACPI SERIAL MULTI INSTANTIATE DRIVER
 M:	Hans de Goede <hdegoede@redhat.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
-F:	drivers/platform/x86/i2c-multi-instantiate.c
+F:	drivers/platform/x86/serial-multi-instantiate.c
 
 ACPI PCC(Platform Communication Channel) MAILBOX DRIVER
 M:	Sudeep Holla <sudeep.holla@arm.com>
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 1331756d4cfc..4463c2eda61e 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1734,17 +1734,21 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	bool is_serial_bus_slave = false;
 	static const struct acpi_device_id ignore_serial_bus_ids[] = {
 	/*
-	 * These devices have multiple I2cSerialBus resources and an i2c-client
-	 * must be instantiated for each, each with its own i2c_device_id.
-	 * Normally we only instantiate an i2c-client for the first resource,
-	 * using the ACPI HID as id. These special cases are handled by the
-	 * drivers/platform/x86/i2c-multi-instantiate.c driver, which knows
-	 * which i2c_device_id to use for each resource.
+	 * These devices have multiple SerialBus resources and a client
+	 * device must be instantiated for each of them, each with
+	 * its own device id.
+	 * Normally we only instantiate one client device for the first
+	 * resource, using the ACPI HID as id. These special cases are handled
+	 * by the drivers/platform/x86/serial-multi-instantiate.c driver, which
+	 * knows which client device id to use for each resource.
 	 */
 		{"BSG1160", },
 		{"BSG2150", },
+		{"CSC3551", },
 		{"INT33FE", },
 		{"INT3515", },
+		/* Non-conforming _HID for Cirrus Logic already released */
+		{"CLSA0100", },
 	/*
 	 * HIDs of device with an UartSerialBusV2 resource for which userspace
 	 * expects a regular tty cdev to be created (instead of the in kernel
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 24deeeb29af2..8d1eec208854 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -990,16 +990,16 @@ config TOPSTAR_LAPTOP
 
 	  If you have a Topstar laptop, say Y or M here.
 
-config I2C_MULTI_INSTANTIATE
-	tristate "I2C multi instantiate pseudo device driver"
-	depends on I2C && ACPI
+config SERIAL_MULTI_INSTANTIATE
+	tristate "Serial bus multi instantiate pseudo device driver"
+	depends on I2C && SPI && ACPI
 	help
-	  Some ACPI-based systems list multiple i2c-devices in a single ACPI
-	  firmware-node. This driver will instantiate separate i2c-clients
+	  Some ACPI-based systems list multiple devices in a single ACPI
+	  firmware-node. This driver will instantiate separate clients
 	  for each device in the firmware-node.
 
 	  To compile this driver as a module, choose M here: the module
-	  will be called i2c-multi-instantiate.
+	  will be called serial-multi-instantiate.
 
 config MLX_PLATFORM
 	tristate "Mellanox Technologies platform support"
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index c12a9b044fd8..9527088bba7f 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -110,7 +110,7 @@ obj-$(CONFIG_TOPSTAR_LAPTOP)	+= topstar-laptop.o
 
 # Platform drivers
 obj-$(CONFIG_FW_ATTR_CLASS)		+= firmware_attributes_class.o
-obj-$(CONFIG_I2C_MULTI_INSTANTIATE)	+= i2c-multi-instantiate.o
+obj-$(CONFIG_SERIAL_MULTI_INSTANTIATE)	+= serial-multi-instantiate.o
 obj-$(CONFIG_MLX_PLATFORM)		+= mlx-platform.o
 obj-$(CONFIG_TOUCHSCREEN_DMI)		+= touchscreen_dmi.o
 obj-$(CONFIG_WIRELESS_HOTKEY)		+= wireless-hotkey.o
diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
deleted file mode 100644
index 4956a1df5b90..000000000000
--- a/drivers/platform/x86/i2c-multi-instantiate.c
+++ /dev/null
@@ -1,174 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * I2C multi-instantiate driver, pseudo driver to instantiate multiple
- * i2c-clients from a single fwnode.
- *
- * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
- */
-
-#include <linux/acpi.h>
-#include <linux/bits.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/property.h>
-#include <linux/types.h>
-
-#define IRQ_RESOURCE_TYPE	GENMASK(1, 0)
-#define IRQ_RESOURCE_NONE	0
-#define IRQ_RESOURCE_GPIO	1
-#define IRQ_RESOURCE_APIC	2
-
-struct i2c_inst_data {
-	const char *type;
-	unsigned int flags;
-	int irq_idx;
-};
-
-struct i2c_multi_inst_data {
-	int num_clients;
-	struct i2c_client *clients[];
-};
-
-static int i2c_multi_inst_probe(struct platform_device *pdev)
-{
-	struct i2c_multi_inst_data *multi;
-	const struct i2c_inst_data *inst_data;
-	struct i2c_board_info board_info = {};
-	struct device *dev = &pdev->dev;
-	struct acpi_device *adev;
-	char name[32];
-	int i, ret;
-
-	inst_data = device_get_match_data(dev);
-	if (!inst_data) {
-		dev_err(dev, "Error ACPI match data is missing\n");
-		return -ENODEV;
-	}
-
-	adev = ACPI_COMPANION(dev);
-
-	/* Count number of clients to instantiate */
-	ret = i2c_acpi_client_count(adev);
-	if (ret < 0)
-		return ret;
-
-	multi = devm_kmalloc(dev, struct_size(multi, clients, ret), GFP_KERNEL);
-	if (!multi)
-		return -ENOMEM;
-
-	multi->num_clients = ret;
-
-	for (i = 0; i < multi->num_clients && inst_data[i].type; i++) {
-		memset(&board_info, 0, sizeof(board_info));
-		strlcpy(board_info.type, inst_data[i].type, I2C_NAME_SIZE);
-		snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev),
-			 inst_data[i].type, i);
-		board_info.dev_name = name;
-		switch (inst_data[i].flags & IRQ_RESOURCE_TYPE) {
-		case IRQ_RESOURCE_GPIO:
-			ret = acpi_dev_gpio_irq_get(adev, inst_data[i].irq_idx);
-			if (ret < 0) {
-				dev_err(dev, "Error requesting irq at index %d: %d\n",
-					inst_data[i].irq_idx, ret);
-				goto error;
-			}
-			board_info.irq = ret;
-			break;
-		case IRQ_RESOURCE_APIC:
-			ret = platform_get_irq(pdev, inst_data[i].irq_idx);
-			if (ret < 0) {
-				dev_dbg(dev, "Error requesting irq at index %d: %d\n",
-					inst_data[i].irq_idx, ret);
-				goto error;
-			}
-			board_info.irq = ret;
-			break;
-		default:
-			board_info.irq = 0;
-			break;
-		}
-		multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info);
-		if (IS_ERR(multi->clients[i])) {
-			ret = dev_err_probe(dev, PTR_ERR(multi->clients[i]),
-					    "Error creating i2c-client, idx %d\n", i);
-			goto error;
-		}
-	}
-	if (i < multi->num_clients) {
-		dev_err(dev, "Error finding driver, idx %d\n", i);
-		ret = -ENODEV;
-		goto error;
-	}
-
-	platform_set_drvdata(pdev, multi);
-	return 0;
-
-error:
-	while (--i >= 0)
-		i2c_unregister_device(multi->clients[i]);
-
-	return ret;
-}
-
-static int i2c_multi_inst_remove(struct platform_device *pdev)
-{
-	struct i2c_multi_inst_data *multi = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < multi->num_clients; i++)
-		i2c_unregister_device(multi->clients[i]);
-
-	return 0;
-}
-
-static const struct i2c_inst_data bsg1160_data[]  = {
-	{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
-	{ "bmc150_magn" },
-	{ "bmg160" },
-	{}
-};
-
-static const struct i2c_inst_data bsg2150_data[]  = {
-	{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
-	{ "bmc150_magn" },
-	/* The resources describe a 3th client, but it is not really there. */
-	{ "bsg2150_dummy_dev" },
-	{}
-};
-
-static const struct i2c_inst_data int3515_data[]  = {
-	{ "tps6598x", IRQ_RESOURCE_APIC, 0 },
-	{ "tps6598x", IRQ_RESOURCE_APIC, 1 },
-	{ "tps6598x", IRQ_RESOURCE_APIC, 2 },
-	{ "tps6598x", IRQ_RESOURCE_APIC, 3 },
-	{}
-};
-
-/*
- * Note new device-ids must also be added to i2c_multi_instantiate_ids in
- * drivers/acpi/scan.c: acpi_device_enumeration_by_parent().
- */
-static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = {
-	{ "BSG1160", (unsigned long)bsg1160_data },
-	{ "BSG2150", (unsigned long)bsg2150_data },
-	{ "INT3515", (unsigned long)int3515_data },
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids);
-
-static struct platform_driver i2c_multi_inst_driver = {
-	.driver	= {
-		.name = "I2C multi instantiate pseudo device driver",
-		.acpi_match_table = i2c_multi_inst_acpi_ids,
-	},
-	.probe = i2c_multi_inst_probe,
-	.remove = i2c_multi_inst_remove,
-};
-module_platform_driver(i2c_multi_inst_driver);
-
-MODULE_DESCRIPTION("I2C multi instantiate pseudo device driver");
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c
new file mode 100644
index 000000000000..1e8063b7c169
--- /dev/null
+++ b/drivers/platform/x86/serial-multi-instantiate.c
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Serial multi-instantiate driver, pseudo driver to instantiate multiple
+ * client devices from a single fwnode.
+ *
+ * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bits.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/spi/spi.h>
+#include <linux/types.h>
+
+#define IRQ_RESOURCE_TYPE	GENMASK(1, 0)
+#define IRQ_RESOURCE_NONE	0
+#define IRQ_RESOURCE_GPIO	1
+#define IRQ_RESOURCE_APIC	2
+
+enum smi_bus_type {
+	SMI_I2C,
+	SMI_SPI,
+	SMI_AUTO_DETECT,
+};
+
+struct smi_instance {
+	const char *type;
+	unsigned int flags;
+	int irq_idx;
+};
+
+struct smi_node {
+	enum smi_bus_type bus_type;
+	struct smi_instance instances[];
+};
+
+struct smi {
+	int i2c_num;
+	int spi_num;
+	struct i2c_client **i2c_devs;
+	struct spi_device **spi_devs;
+};
+
+static int smi_get_irq(struct platform_device *pdev, struct acpi_device *adev,
+		       const struct smi_instance *inst)
+{
+	int ret;
+
+	switch (inst->flags & IRQ_RESOURCE_TYPE) {
+	case IRQ_RESOURCE_GPIO:
+		ret = acpi_dev_gpio_irq_get(adev, inst->irq_idx);
+		break;
+	case IRQ_RESOURCE_APIC:
+		ret = platform_get_irq(pdev, inst->irq_idx);
+		break;
+	default:
+		return 0;
+	}
+
+	if (ret < 0)
+		dev_err_probe(&pdev->dev, ret, "Error requesting irq at index %d: %d\n",
+			      inst->irq_idx, ret);
+
+	return ret;
+}
+
+static void smi_devs_unregister(struct smi *smi)
+{
+	while (smi->i2c_num > 0)
+		i2c_unregister_device(smi->i2c_devs[--smi->i2c_num]);
+
+	while (smi->spi_num > 0)
+		spi_unregister_device(smi->spi_devs[--smi->spi_num]);
+}
+
+/**
+ * smi_spi_probe - Instantiate multiple SPI devices from inst array
+ * @pdev:	Platform device
+ * @adev:	ACPI device
+ * @smi:	Internal struct for Serial multi instantiate driver
+ * @inst_array:	Array of instances to probe
+ *
+ * Returns the number of SPI devices instantiate, Zero if none is found or a negative error code.
+ */
+static int smi_spi_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi,
+			 const struct smi_instance *inst_array)
+{
+	struct device *dev = &pdev->dev;
+	struct spi_controller *ctlr;
+	struct spi_device *spi_dev;
+	char name[50];
+	int i, ret, count;
+
+	ret = acpi_spi_count_resources(adev);
+	if (ret < 0)
+		return ret;
+	else if (!ret)
+		return -ENODEV;
+
+	count = ret;
+
+	smi->spi_devs = devm_kcalloc(dev, count, sizeof(*smi->spi_devs), GFP_KERNEL);
+	if (!smi->spi_devs)
+		return -ENOMEM;
+
+	for (i = 0; i < count && inst_array[i].type; i++) {
+
+		spi_dev = acpi_spi_device_alloc(NULL, adev, i);
+		if (IS_ERR(spi_dev)) {
+			ret = PTR_ERR(spi_dev);
+			dev_err_probe(dev, ret, "failed to allocate SPI device %s from ACPI: %d\n",
+				      dev_name(&adev->dev), ret);
+			goto error;
+		}
+
+		ctlr = spi_dev->controller;
+
+		strscpy(spi_dev->modalias, inst_array[i].type, sizeof(spi_dev->modalias));
+
+		ret = smi_get_irq(pdev, adev, &inst_array[i]);
+		if (ret < 0) {
+			spi_dev_put(spi_dev);
+			goto error;
+		}
+		spi_dev->irq = ret;
+
+		snprintf(name, sizeof(name), "%s-%s-%s.%d", dev_name(&ctlr->dev), dev_name(dev),
+			 inst_array[i].type, i);
+		spi_dev->dev.init_name = name;
+
+		ret = spi_add_device(spi_dev);
+		if (ret) {
+			dev_err_probe(&ctlr->dev, ret,
+				      "failed to add SPI device %s from ACPI: %d\n",
+				      dev_name(&adev->dev), ret);
+			spi_dev_put(spi_dev);
+			goto error;
+		}
+
+		dev_dbg(dev, "SPI device %s using chip select %u", name, spi_dev->chip_select);
+
+		smi->spi_devs[i] = spi_dev;
+		smi->spi_num++;
+	}
+
+	if (smi->spi_num < count) {
+		dev_dbg(dev, "Error finding driver, idx %d\n", i);
+		ret = -ENODEV;
+		goto error;
+	}
+
+	dev_info(dev, "Instantiated %d SPI devices.\n", smi->spi_num);
+
+	return 0;
+error:
+	smi_devs_unregister(smi);
+
+	return ret;
+}
+
+/**
+ * smi_i2c_probe - Instantiate multiple I2C devices from inst array
+ * @pdev:	Platform device
+ * @adev:	ACPI device
+ * @smi:	Internal struct for Serial multi instantiate driver
+ * @inst_array:	Array of instances to probe
+ *
+ * Returns the number of I2C devices instantiate, Zero if none is found or a negative error code.
+ */
+static int smi_i2c_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi,
+			 const struct smi_instance *inst_array)
+{
+	struct i2c_board_info board_info = {};
+	struct device *dev = &pdev->dev;
+	char name[32];
+	int i, ret, count;
+
+	ret = i2c_acpi_client_count(adev);
+	if (ret < 0)
+		return ret;
+	else if (!ret)
+		return -ENODEV;
+
+	count = ret;
+
+	smi->i2c_devs = devm_kcalloc(dev, count, sizeof(*smi->i2c_devs), GFP_KERNEL);
+	if (!smi->i2c_devs)
+		return -ENOMEM;
+
+	for (i = 0; i < count && inst_array[i].type; i++) {
+		memset(&board_info, 0, sizeof(board_info));
+		strscpy(board_info.type, inst_array[i].type, I2C_NAME_SIZE);
+		snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst_array[i].type, i);
+		board_info.dev_name = name;
+
+		ret = smi_get_irq(pdev, adev, &inst_array[i]);
+		if (ret < 0)
+			goto error;
+		board_info.irq = ret;
+
+		smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info);
+		if (IS_ERR(smi->i2c_devs[i])) {
+			ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]),
+					    "Error creating i2c-client, idx %d\n", i);
+			goto error;
+		}
+		smi->i2c_num++;
+	}
+	if (smi->i2c_num < count) {
+		dev_dbg(dev, "Error finding driver, idx %d\n", i);
+		ret = -ENODEV;
+		goto error;
+	}
+
+	dev_info(dev, "Instantiated %d I2C devices.\n", smi->i2c_num);
+
+	return 0;
+error:
+	smi_devs_unregister(smi);
+
+	return ret;
+}
+
+static int smi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct smi_node *node;
+	struct acpi_device *adev;
+	struct smi *smi;
+
+	adev = ACPI_COMPANION(dev);
+	if (!adev)
+		return -ENODEV;
+
+	node = device_get_match_data(dev);
+	if (!node) {
+		dev_dbg(dev, "Error ACPI match data is missing\n");
+		return -ENODEV;
+	}
+
+	smi = devm_kzalloc(dev, sizeof(*smi), GFP_KERNEL);
+	if (!smi)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, smi);
+
+	switch (node->bus_type) {
+	case SMI_I2C:
+		return smi_i2c_probe(pdev, adev, smi, node->instances);
+	case SMI_SPI:
+		return smi_spi_probe(pdev, adev, smi, node->instances);
+	case SMI_AUTO_DETECT:
+		if (i2c_acpi_client_count(adev) > 0)
+			return smi_i2c_probe(pdev, adev, smi, node->instances);
+		else
+			return smi_spi_probe(pdev, adev, smi, node->instances);
+	default:
+		return -EINVAL;
+	}
+
+	return 0; /* never reached */
+}
+
+static int smi_remove(struct platform_device *pdev)
+{
+	struct smi *smi = platform_get_drvdata(pdev);
+
+	smi_devs_unregister(smi);
+
+	return 0;
+}
+
+static const struct smi_node bsg1160_data = {
+	.instances = {
+		{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
+		{ "bmc150_magn" },
+		{ "bmg160" },
+		{}
+	},
+	.bus_type = SMI_I2C,
+};
+
+static const struct smi_node bsg2150_data = {
+	.instances = {
+		{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
+		{ "bmc150_magn" },
+		/* The resources describe a 3th client, but it is not really there. */
+		{ "bsg2150_dummy_dev" },
+		{}
+	},
+	.bus_type = SMI_I2C,
+};
+
+static const struct smi_node int3515_data = {
+	.instances = {
+		{ "tps6598x", IRQ_RESOURCE_APIC, 0 },
+		{ "tps6598x", IRQ_RESOURCE_APIC, 1 },
+		{ "tps6598x", IRQ_RESOURCE_APIC, 2 },
+		{ "tps6598x", IRQ_RESOURCE_APIC, 3 },
+		{}
+	},
+	.bus_type = SMI_I2C,
+};
+
+static const struct smi_node cs35l41_hda = {
+	.instances = {
+		{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
+		{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
+		{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
+		{ "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
+		{}
+	},
+	.bus_type = SMI_AUTO_DETECT,
+};
+
+/*
+ * Note new device-ids must also be added to ignore_serial_bus_ids in
+ * drivers/acpi/scan.c: acpi_device_enumeration_by_parent().
+ */
+static const struct acpi_device_id smi_acpi_ids[] = {
+	{ "BSG1160", (unsigned long)&bsg1160_data },
+	{ "BSG2150", (unsigned long)&bsg2150_data },
+	{ "INT3515", (unsigned long)&int3515_data },
+	{ "CSC3551", (unsigned long)&cs35l41_hda },
+	/* Non-conforming _HID for Cirrus Logic already released */
+	{ "CLSA0100", (unsigned long)&cs35l41_hda },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, smi_acpi_ids);
+
+static struct platform_driver smi_driver = {
+	.driver	= {
+		.name = "Serial bus multi instantiate pseudo device driver",
+		.acpi_match_table = smi_acpi_ids,
+	},
+	.probe = smi_probe,
+	.remove = smi_remove,
+};
+module_platform_driver(smi_driver);
+
+MODULE_DESCRIPTION("Serial multi instantiate pseudo device driver");
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 4599b121d744..ec9f2ed579e3 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -532,7 +532,7 @@ static DEFINE_MUTEX(board_lock);
  *
  * Return: a pointer to the new device, or NULL.
  */
-static struct spi_device *spi_alloc_device(struct spi_controller *ctlr)
+struct spi_device *spi_alloc_device(struct spi_controller *ctlr)
 {
 	struct spi_device	*spi;
 
@@ -557,6 +557,7 @@ static struct spi_device *spi_alloc_device(struct spi_controller *ctlr)
 	device_initialize(&spi->dev);
 	return spi;
 }
+EXPORT_SYMBOL_GPL(spi_alloc_device);
 
 static void spi_dev_set_name(struct spi_device *spi)
 {
@@ -652,7 +653,7 @@ static int __spi_add_device(struct spi_device *spi)
  *
  * Return: 0 on success; negative errno on failure
  */
-static int spi_add_device(struct spi_device *spi)
+int spi_add_device(struct spi_device *spi)
 {
 	struct spi_controller *ctlr = spi->controller;
 	struct device *dev = ctlr->dev.parent;
@@ -673,6 +674,7 @@ static int spi_add_device(struct spi_device *spi)
 	mutex_unlock(&ctlr->add_lock);
 	return status;
 }
+EXPORT_SYMBOL_GPL(spi_add_device);
 
 static int spi_add_device_locked(struct spi_device *spi)
 {
@@ -2318,8 +2320,50 @@ struct acpi_spi_lookup {
 	int			irq;
 	u8			bits_per_word;
 	u8			chip_select;
+	int			n;
+	int			index;
 };
 
+static int acpi_spi_count(struct acpi_resource *ares, void *data)
+{
+	struct acpi_resource_spi_serialbus *sb;
+	int *count = data;
+
+	if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
+		return 1;
+
+	sb = &ares->data.spi_serial_bus;
+	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_SPI)
+		return 1;
+
+	*count = *count + 1;
+
+	return 1;
+}
+
+/**
+ * acpi_spi_count_resources - Count the number of SpiSerialBus resources
+ * @adev:	ACPI device
+ *
+ * Returns the number of SpiSerialBus resources in the ACPI-device's
+ * resource-list; or a negative error code.
+ */
+int acpi_spi_count_resources(struct acpi_device *adev)
+{
+	LIST_HEAD(r);
+	int count = 0;
+	int ret;
+
+	ret = acpi_dev_get_resources(adev, &r, acpi_spi_count, &count);
+	if (ret < 0)
+		return ret;
+
+	acpi_dev_free_resource_list(&r);
+
+	return count;
+}
+EXPORT_SYMBOL_GPL(acpi_spi_count_resources);
+
 static void acpi_spi_parse_apple_properties(struct acpi_device *dev,
 					    struct acpi_spi_lookup *lookup)
 {
@@ -2349,6 +2393,8 @@ static void acpi_spi_parse_apple_properties(struct acpi_device *dev,
 		lookup->mode |= SPI_CPHA;
 }
 
+static struct spi_controller *acpi_spi_find_controller_by_adev(struct acpi_device *adev);
+
 static int acpi_spi_add_resource(struct acpi_resource *ares, void *data)
 {
 	struct acpi_spi_lookup *lookup = data;
@@ -2362,14 +2408,35 @@ static int acpi_spi_add_resource(struct acpi_resource *ares, void *data)
 		sb = &ares->data.spi_serial_bus;
 		if (sb->type == ACPI_RESOURCE_SERIAL_TYPE_SPI) {
 
+			if (lookup->index != -1 && lookup->n++ != lookup->index)
+				return 1;
+
+			if (lookup->index == -1 && !ctlr)
+				return -ENODEV;
+
 			status = acpi_get_handle(NULL,
 						 sb->resource_source.string_ptr,
 						 &parent_handle);
 
-			if (ACPI_FAILURE(status) ||
-			    ACPI_HANDLE(ctlr->dev.parent) != parent_handle)
+			if (ACPI_FAILURE(status))
 				return -ENODEV;
 
+			if (ctlr) {
+				if (ACPI_HANDLE(ctlr->dev.parent) != parent_handle)
+					return -ENODEV;
+			} else {
+				struct acpi_device *adev;
+
+				if (acpi_bus_get_device(parent_handle, &adev))
+					return -ENODEV;
+
+				ctlr = acpi_spi_find_controller_by_adev(adev);
+				if (!ctlr)
+					return -ENODEV;
+
+				lookup->ctlr = ctlr;
+			}
+
 			/*
 			 * ACPI DeviceSelection numbering is handled by the
 			 * host controller driver in Windows and can vary
@@ -2408,8 +2475,25 @@ static int acpi_spi_add_resource(struct acpi_resource *ares, void *data)
 	return 1;
 }
 
-static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
-					    struct acpi_device *adev)
+/**
+ * acpi_spi_device_alloc - Allocate a spi device, and fill it in with ACPI information
+ * @ctlr: controller to which the spi device belongs
+ * @adev: ACPI Device for the spi device
+ * @index: Index of the spi resource inside the ACPI Node
+ *
+ * This should be used to allocate a new spi device from and ACPI Node.
+ * The caller is responsible for calling spi_add_device to register the spi device.
+ *
+ * If ctlr is set to NULL, the Controller for the spi device will be looked up
+ * using the resource.
+ * If index is set to -1, index is not used.
+ * Note: If index is -1, ctlr must be set.
+ *
+ * Return: a pointer to the new device, or ERR_PTR on error.
+ */
+struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr,
+					 struct acpi_device *adev,
+					 int index)
 {
 	acpi_handle parent_handle = NULL;
 	struct list_head resource_list;
@@ -2417,12 +2501,13 @@ static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
 	struct spi_device *spi;
 	int ret;
 
-	if (acpi_bus_get_status(adev) || !adev->status.present ||
-	    acpi_device_enumerated(adev))
-		return AE_OK;
+	if (!ctlr && index == -1)
+		return ERR_PTR(-EINVAL);
 
 	lookup.ctlr		= ctlr;
 	lookup.irq		= -1;
+	lookup.index		= index;
+	lookup.n		= 0;
 
 	INIT_LIST_HEAD(&resource_list);
 	ret = acpi_dev_get_resources(adev, &resource_list,
@@ -2431,26 +2516,25 @@ static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
 
 	if (ret < 0)
 		/* found SPI in _CRS but it points to another controller */
-		return AE_OK;
+		return ERR_PTR(-ENODEV);
 
 	if (!lookup.max_speed_hz &&
 	    ACPI_SUCCESS(acpi_get_parent(adev->handle, &parent_handle)) &&
-	    ACPI_HANDLE(ctlr->dev.parent) == parent_handle) {
+	    ACPI_HANDLE(lookup.ctlr->dev.parent) == parent_handle) {
 		/* Apple does not use _CRS but nested devices for SPI slaves */
 		acpi_spi_parse_apple_properties(adev, &lookup);
 	}
 
 	if (!lookup.max_speed_hz)
-		return AE_OK;
+		return ERR_PTR(-ENODEV);
 
-	spi = spi_alloc_device(ctlr);
+	spi = spi_alloc_device(lookup.ctlr);
 	if (!spi) {
-		dev_err(&ctlr->dev, "failed to allocate SPI device for %s\n",
+		dev_err(&lookup.ctlr->dev, "failed to allocate SPI device for %s\n",
 			dev_name(&adev->dev));
-		return AE_NO_MEMORY;
+		return ERR_PTR(-ENOMEM);
 	}
 
-
 	ACPI_COMPANION_SET(&spi->dev, adev);
 	spi->max_speed_hz	= lookup.max_speed_hz;
 	spi->mode		|= lookup.mode;
@@ -2458,6 +2542,27 @@ static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
 	spi->bits_per_word	= lookup.bits_per_word;
 	spi->chip_select	= lookup.chip_select;
 
+	return spi;
+}
+EXPORT_SYMBOL_GPL(acpi_spi_device_alloc);
+
+static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
+					    struct acpi_device *adev)
+{
+	struct spi_device *spi;
+
+	if (acpi_bus_get_status(adev) || !adev->status.present ||
+	    acpi_device_enumerated(adev))
+		return AE_OK;
+
+	spi = acpi_spi_device_alloc(ctlr, adev, -1);
+	if (IS_ERR(spi)) {
+		if (PTR_ERR(spi) == -ENOMEM)
+			return AE_NO_MEMORY;
+		else
+			return AE_OK;
+	}
+
 	acpi_set_modalias(adev, acpi_device_hid(adev), spi->modalias,
 			  sizeof(spi->modalias));
 
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 7ab3fed7b804..394b4241d989 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -16,6 +16,7 @@
 #include <linux/gpio/consumer.h>
 
 #include <uapi/linux/spi/spi.h>
+#include <linux/acpi.h>
 
 struct dma_chan;
 struct software_node;
@@ -759,6 +760,13 @@ extern int devm_spi_register_controller(struct device *dev,
 					struct spi_controller *ctlr);
 extern void spi_unregister_controller(struct spi_controller *ctlr);
 
+#if IS_ENABLED(CONFIG_ACPI)
+extern struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr,
+						struct acpi_device *adev,
+						int index);
+int acpi_spi_count_resources(struct acpi_device *adev);
+#endif
+
 /*
  * SPI resource management while processing a SPI message
  */
@@ -1452,8 +1460,20 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n)
  * use spi_new_device() to describe each device.  You can also call
  * spi_unregister_device() to start making that device vanish, but
  * normally that would be handled by spi_unregister_controller().
+ *
+ * You can also use spi_alloc_device() and spi_add_device() to use a two
+ * stage registration sequence for each spi_device. This gives the caller
+ * some more control over the spi_device structure before it is registered,
+ * but requires that caller to initialize fields that would otherwise
+ * be defined using the board info.
  */
 extern struct spi_device *
+spi_alloc_device(struct spi_controller *ctlr);
+
+extern int
+spi_add_device(struct spi_device *spi);
+
+extern struct spi_device *
 spi_new_device(struct spi_controller *, struct spi_board_info *);
 
 extern void spi_unregister_device(struct spi_device *spi);
diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h
index 82d9daa17851..77426ff58338 100644
--- a/include/sound/hda_codec.h
+++ b/include/sound/hda_codec.h
@@ -306,12 +306,19 @@ struct hda_codec {
 /*
  * constructors
  */
+__printf(3, 4) struct hda_codec *
+snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
+			  const char *fmt, ...);
 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		      unsigned int codec_addr, struct hda_codec **codecp);
 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
-		      unsigned int codec_addr, struct hda_codec *codec);
+		      unsigned int codec_addr, struct hda_codec *codec,
+		      bool snddev_managed);
 int snd_hda_codec_configure(struct hda_codec *codec);
 int snd_hda_codec_update_widgets(struct hda_codec *codec);
+void snd_hda_codec_register(struct hda_codec *codec);
+void snd_hda_codec_unregister(struct hda_codec *codec);
+void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
 
 /*
  * low level functions
@@ -490,9 +497,11 @@ int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
 #define snd_hda_power_down(codec)	snd_hdac_power_down(&(codec)->core)
 #define snd_hda_power_down_pm(codec)	snd_hdac_power_down_pm(&(codec)->core)
 #ifdef CONFIG_PM
+void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay);
 void snd_hda_set_power_save(struct hda_bus *bus, int delay);
 void snd_hda_update_power_acct(struct hda_codec *codec);
 #else
+static inline void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay) {}
 static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
 #endif
 
diff --git a/include/sound/hda_verbs.h b/include/sound/hda_verbs.h
index e36b77531c5c..006d358acce2 100644
--- a/include/sound/hda_verbs.h
+++ b/include/sound/hda_verbs.h
@@ -461,7 +461,7 @@ enum {
 #define AC_DE_ELDV			(1<<1)
 #define AC_DE_IA			(1<<2)
 
-/* device device types (0x0-0xf) */
+/* device types (0x0-0xf) */
 enum {
 	AC_JACK_LINE_OUT,
 	AC_JACK_SPEAKER,
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
index 77123c3e4095..b0c8e4936168 100644
--- a/include/sound/hdaudio_ext.h
+++ b/include/sound/hdaudio_ext.h
@@ -28,6 +28,7 @@ void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
 				 bool enable, int index);
 
 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
+struct hdac_ext_link *snd_hdac_ext_bus_link_at(struct hdac_bus *bus, int addr);
 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
 						const char *codec_name);
 
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index db2e3c63ff41..dd7b40734723 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -84,7 +84,7 @@ config SND_PCM_TIMER
 	help
 	  If you disable this option, pcm timer will be unavailable, so
 	  those stubs that use pcm timer (e.g. dmix, dsnoop & co) may work
-	  incorrectlly.
+	  incorrectly.
 
 	  For some embedded devices, we may disable it to reduce memory
 	  footprint, about 20KB on x86_64 platform.
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index f158f0abd25d..90c3a367d7de 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -842,6 +842,17 @@ static void unlock_params(struct snd_pcm_runtime *runtime)
 	mutex_unlock(&runtime->oss.params_lock);
 }
 
+static void snd_pcm_oss_release_buffers(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	kvfree(runtime->oss.buffer);
+	runtime->oss.buffer = NULL;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+	snd_pcm_oss_plugin_clear(substream);
+#endif
+}
+
 /* call with params_lock held */
 static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 {
@@ -972,12 +983,10 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 	snd_pcm_oss_plugin_clear(substream);
 	if (!direct) {
 		/* add necessary plugins */
-		snd_pcm_oss_plugin_clear(substream);
 		err = snd_pcm_plug_format_plugins(substream, params, sparams);
 		if (err < 0) {
 			pcm_dbg(substream->pcm,
 				"snd_pcm_plug_format_plugins failed: %i\n", err);
-			snd_pcm_oss_plugin_clear(substream);
 			goto failure;
 		}
 		if (runtime->oss.plugin_first) {
@@ -986,7 +995,6 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 			if (err < 0) {
 				pcm_dbg(substream->pcm,
 					"snd_pcm_plugin_build_io failed: %i\n", err);
-				snd_pcm_oss_plugin_clear(substream);
 				goto failure;
 			}
 			if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -994,10 +1002,8 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 			} else {
 				err = snd_pcm_plugin_insert(plugin);
 			}
-			if (err < 0) {
-				snd_pcm_oss_plugin_clear(substream);
+			if (err < 0)
 				goto failure;
-			}
 		}
 	}
 #endif
@@ -1086,6 +1092,8 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 
 	err = 0;
 failure:
+	if (err)
+		snd_pcm_oss_release_buffers(substream);
 	kfree(sw_params);
 	kfree(params);
 	kfree(sparams);
@@ -2355,13 +2363,7 @@ static void snd_pcm_oss_look_for_setup(struct snd_pcm *pcm, int stream,
 
 static void snd_pcm_oss_release_substream(struct snd_pcm_substream *substream)
 {
-	struct snd_pcm_runtime *runtime;
-	runtime = substream->runtime;
-	kvfree(runtime->oss.buffer);
-	runtime->oss.buffer = NULL;
-#ifdef CONFIG_SND_PCM_OSS_PLUGINS
-	snd_pcm_oss_plugin_clear(substream);
-#endif
+	snd_pcm_oss_release_buffers(substream);
 	substream->oss.oss = 0;
 }
 
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index 0ee4a5081fd6..42d4e7535a82 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -66,7 +66,7 @@ snd_seq_oss_create_client(void)
 	struct snd_seq_port_info *port;
 	struct snd_seq_port_callback port_callback;
 
-	port = kmalloc(sizeof(*port), GFP_KERNEL);
+	port = kzalloc(sizeof(*port), GFP_KERNEL);
 	if (!port) {
 		rc = -ENOMEM;
 		goto __error;
@@ -80,8 +80,7 @@ snd_seq_oss_create_client(void)
 
 	system_client = rc;
 
-	/* create annoucement receiver port */
-	memset(port, 0, sizeof(*port));
+	/* create announcement receiver port */
 	strcpy(port->name, "Receiver");
 	port->addr.client = system_client;
 	port->capability = SNDRV_SEQ_PORT_CAP_WRITE; /* receive only */
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index b2df7b4f9227..b072392725c7 100644
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -133,6 +133,26 @@ void snd_hdac_link_free_all(struct hdac_bus *bus)
 EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
 
 /**
+ * snd_hdac_ext_bus_link_at - get link at specified address
+ * @bus: link's parent bus device
+ * @addr: codec device address
+ *
+ * Returns link object or NULL if matching link is not found.
+ */
+struct hdac_ext_link *snd_hdac_ext_bus_link_at(struct hdac_bus *bus, int addr)
+{
+	struct hdac_ext_link *hlink;
+	int i;
+
+	list_for_each_entry(hlink, &bus->hlink_list, list)
+		for (i = 0; i < HDA_MAX_CODECS; i++)
+			if (hlink->lsdiid & (0x1 << addr))
+				return hlink;
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_at);
+
+/**
  * snd_hdac_ext_bus_get_link - get link based on codec name
  * @bus: the pointer to HDAC bus object
  * @codec_name: codec name
@@ -140,8 +160,6 @@ EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
 						 const char *codec_name)
 {
-	int i;
-	struct hdac_ext_link *hlink = NULL;
 	int bus_idx, addr;
 
 	if (sscanf(codec_name, "ehdaudio%dD%d", &bus_idx, &addr) != 2)
@@ -151,14 +169,7 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
 	if (addr < 0 || addr > 31)
 		return NULL;
 
-	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		for (i = 0; i < HDA_MAX_CODECS; i++) {
-			if (hlink->lsdiid & (0x1 << addr))
-				return hlink;
-		}
-	}
-
-	return NULL;
+	return snd_hdac_ext_bus_link_at(bus, addr);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_link);
 
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index 454474ac5716..efe810af28c5 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -160,8 +160,8 @@ int snd_hdac_i915_init(struct hdac_bus *bus)
 		if (!IS_ENABLED(CONFIG_MODULES) ||
 		    !request_module("i915")) {
 			/* 60s timeout */
-			wait_for_completion_timeout(&acomp->master_bind_complete,
-						    msecs_to_jiffies(60 * 1000));
+			wait_for_completion_killable_timeout(&acomp->master_bind_complete,
+							     msecs_to_jiffies(60 * 1000));
 		}
 	}
 	if (!acomp->ops) {
diff --git a/sound/mips/snd-n64.c b/sound/mips/snd-n64.c
index 463a6fe589eb..bff6d85b8fe2 100644
--- a/sound/mips/snd-n64.c
+++ b/sound/mips/snd-n64.c
@@ -289,8 +289,7 @@ static int __init n64audio_probe(struct platform_device *pdev)
 	struct snd_card *card;
 	struct snd_pcm *pcm;
 	struct n64audio *priv;
-	struct resource *res;
-	int err;
+	int err, irq;
 
 	err = snd_card_new(&pdev->dev, SNDRV_DEFAULT_IDX1,
 			   SNDRV_DEFAULT_STR1,
@@ -337,12 +336,12 @@ static int __init n64audio_probe(struct platform_device *pdev)
 	strcpy(card->shortname, "N64 Audio");
 	strcpy(card->longname, "N64 Audio");
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
 		err = -EINVAL;
 		goto fail_dma_alloc;
 	}
-	if (devm_request_irq(&pdev->dev, res->start, n64audio_isr,
+	if (devm_request_irq(&pdev->dev, irq, n64audio_isr,
 				IRQF_SHARED, "N64 Audio", priv)) {
 		err = -EBUSY;
 		goto fail_dma_alloc;
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index f246e6094289..991b1c5d41d5 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -59,15 +59,15 @@
 /* PCI function 0 registers, address = <val> + PCIBASE0						*/
 /************************************************************************************************/
 
-#define PTR			0x00		/* Indexed register set pointer register	*/
+#define CA0106_PTR		0x00		/* Indexed register set pointer register	*/
 						/* NOTE: The CHANNELNUM and ADDRESS words can	*/
 						/* be modified independently of each other.	*/
 						/* CNL[1:0], ADDR[27:16]                        */
 
-#define DATA			0x04		/* Indexed register set data register		*/
+#define CA0106_DATA		0x04		/* Indexed register set data register		*/
 						/* DATA[31:0]					*/
 
-#define IPR			0x08		/* Global interrupt pending register		*/
+#define CA0106_IPR		0x08		/* Global interrupt pending register		*/
 						/* Clear pending interrupts by writing a 1 to	*/
 						/* the relevant bits and zero to the other bits	*/
 #define IPR_MIDI_RX_B		0x00020000	/* MIDI UART-B Receive buffer non-empty		*/
@@ -88,7 +88,7 @@
 #define IPR_MIDI_TX_A		0x00000002	/* MIDI UART-A Transmit buffer empty		*/
 #define IPR_PCI			0x00000001	/* PCI Bus error				*/
 
-#define INTE			0x0c		/* Interrupt enable register			*/
+#define CA0106_INTE		0x0c		/* Interrupt enable register			*/
 
 #define INTE_MIDI_RX_B		0x00020000	/* MIDI UART-B Receive buffer non-empty		*/
 #define INTE_MIDI_TX_B		0x00010000	/* MIDI UART-B Transmit buffer empty		*/
@@ -108,8 +108,8 @@
 #define INTE_MIDI_TX_A		0x00000002	/* MIDI UART-A Transmit buffer empty		*/
 #define INTE_PCI		0x00000001	/* PCI Bus error				*/
 
-#define UNKNOWN10		0x10		/* Unknown ??. Defaults to 0 */
-#define HCFG			0x14		/* Hardware config register			*/
+#define CA0106_UNKNOWN10	0x10		/* Unknown ??. Defaults to 0 */
+#define CA0106_HCFG		0x14		/* Hardware config register			*/
 						/* 0x1000 causes AC3 to fails. It adds a dither bit. */
 
 #define HCFG_STAC		0x10000000	/* Special mode for STAC9460 Codec. */
@@ -133,7 +133,7 @@
 #define HCFG_AUDIOENABLE	0x00000001	/* 0 = CODECs transmit zero-valued samples	*/
 						/* Should be set to 1 when the EMU10K1 is	*/
 						/* completely initialized.			*/
-#define GPIO			0x18		/* Defaults: 005f03a3-Analog, 005f02a2-SPDIF.   */
+#define CA0106_GPIO		0x18		/* Defaults: 005f03a3-Analog, 005f02a2-SPDIF.   */
 						/* Here pins 0,1,2,3,4,,6 are output. 5,7 are input */
 						/* For the Audigy LS, pin 0 (or bit 8) controls the SPDIF/Analog jack. */
 						/* SB Live 24bit:
@@ -152,9 +152,9 @@
 						 * GPO [15:8] Default 0x9. (Default to SPDIF jack enabled for SPDIF)
 						 * GPO Enable [23:16] Default 0x0f. Setting a bit to 1, causes the pin to be an output pin.
 						 */
-#define AC97DATA		0x1c		/* AC97 register set data register (16 bit)	*/
+#define CA0106_AC97DATA		0x1c		/* AC97 register set data register (16 bit)	*/
 
-#define AC97ADDRESS		0x1e		/* AC97 register set address register (8 bit)	*/
+#define CA0106_AC97ADDRESS	0x1e		/* AC97 register set address register (8 bit)	*/
 
 /********************************************************************************************************/
 /* CA0106 pointer-offset register set, accessed through the PTR and DATA registers                     */
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 36fb150b72fb..8577f9fa5ea6 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -338,8 +338,8 @@ unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 	regptr = (reg << 16) | chn;
 
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	outl(regptr, emu->port + PTR);
-	val = inl(emu->port + DATA);
+	outl(regptr, emu->port + CA0106_PTR);
+	val = inl(emu->port + CA0106_DATA);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 	return val;
 }
@@ -355,8 +355,8 @@ void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 	regptr = (reg << 16) | chn;
 
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	outl(regptr, emu->port + PTR);
-	outl(data, emu->port + DATA);
+	outl(regptr, emu->port + CA0106_PTR);
+	outl(data, emu->port + CA0106_DATA);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 }
 
@@ -455,8 +455,8 @@ static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 	unsigned int intr_enable;
 
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	intr_enable = inl(emu->port + INTE) | intrenb;
-	outl(intr_enable, emu->port + INTE);
+	intr_enable = inl(emu->port + CA0106_INTE) | intrenb;
+	outl(intr_enable, emu->port + CA0106_INTE);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 }
 
@@ -466,8 +466,8 @@ static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb
 	unsigned int intr_enable;
 
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	intr_enable = inl(emu->port + INTE) & ~intrenb;
-	outl(intr_enable, emu->port + INTE);
+	intr_enable = inl(emu->port + CA0106_INTE) & ~intrenb;
+	outl(intr_enable, emu->port + CA0106_INTE);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 }
 
@@ -786,9 +786,9 @@ static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 		hcfg_set = 0;
 		break;
 	}
-	hcfg = inl(emu->port + HCFG) ;
+	hcfg = inl(emu->port + CA0106_HCFG) ;
 	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
-	outl(hcfg, emu->port + HCFG);
+	outl(hcfg, emu->port + CA0106_HCFG);
 	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 	reg40 = (reg40 & ~reg40_mask) | reg40_set;
 	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
@@ -888,9 +888,9 @@ static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 		hcfg_set = 0;
 		break;
 	}
-	hcfg = inl(emu->port + HCFG) ;
+	hcfg = inl(emu->port + CA0106_HCFG) ;
 	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
-	outl(hcfg, emu->port + HCFG);
+	outl(hcfg, emu->port + CA0106_HCFG);
 	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 	reg71 = (reg71 & ~reg71_mask) | reg71_set;
 	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
@@ -1142,8 +1142,8 @@ static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
 	unsigned short val;
 
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	outb(reg, emu->port + AC97ADDRESS);
-	val = inw(emu->port + AC97DATA);
+	outb(reg, emu->port + CA0106_AC97ADDRESS);
+	val = inw(emu->port + CA0106_AC97DATA);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 	return val;
 }
@@ -1155,8 +1155,8 @@ static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
 	unsigned long flags;
   
 	spin_lock_irqsave(&emu->emu_lock, flags);
-	outb(reg, emu->port + AC97ADDRESS);
-	outw(val, emu->port + AC97DATA);
+	outb(reg, emu->port + CA0106_AC97ADDRESS);
+	outw(val, emu->port + CA0106_AC97DATA);
 	spin_unlock_irqrestore(&emu->emu_lock, flags);
 }
 
@@ -1200,7 +1200,7 @@ static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
         unsigned int stat76;
 	struct snd_ca0106_channel *pchannel;
 
-	status = inl(chip->port + IPR);
+	status = inl(chip->port + CA0106_IPR);
 	if (! status)
 		return IRQ_NONE;
 
@@ -1255,7 +1255,7 @@ static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
 	}
 
 	// acknowledge the interrupt if necessary
-	outl(status, chip->port+IPR);
+	outl(status, chip->port + CA0106_IPR);
 
 	return IRQ_HANDLED;
 }
@@ -1383,7 +1383,7 @@ static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
 	int ch;
 	unsigned int def_bits;
 
-	outl(0, chip->port + INTE);
+	outl(0, chip->port + CA0106_INTE);
 
 	/*
 	 *  Init to 0x02109204 :
@@ -1420,8 +1420,8 @@ static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
 
         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
-        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
-        outw(0x8000, chip->port + AC97DATA);
+        outb(AC97_REC_GAIN, chip->port + CA0106_AC97ADDRESS);
+        outw(0x8000, chip->port + CA0106_AC97DATA);
 #if 0 /* FIXME: what are these? */
 	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
 	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
@@ -1495,30 +1495,30 @@ static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
 		/* FIXME: Still need to find out what the other GPIO bits do.
 		 * E.g. For digital spdif out.
 		 */
-		outl(0x0, chip->port+GPIO);
-		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
-		outl(0x005f5301, chip->port+GPIO); /* Analog */
+		outl(0x0, chip->port + CA0106_GPIO);
+		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
+		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
 	} else if (chip->details->gpio_type == 1) {
 		/* The SB0410 and SB0413 use GPIO differently. */
 		/* FIXME: Still need to find out what the other GPIO bits do.
 		 * E.g. For digital spdif out.
 		 */
-		outl(0x0, chip->port+GPIO);
-		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
-		outl(0x005f5301, chip->port+GPIO); /* Analog */
+		outl(0x0, chip->port + CA0106_GPIO);
+		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
+		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
 	} else {
-		outl(0x0, chip->port+GPIO);
-		outl(0x005f03a3, chip->port+GPIO); /* Analog */
-		/* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
+		outl(0x0, chip->port + CA0106_GPIO);
+		outl(0x005f03a3, chip->port + CA0106_GPIO); /* Analog */
+		/* outl(0x005f02a2, chip->port + CA0106_GPIO); */ /* SPDIF */
 	}
 	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
 
 	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
 	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
-	/* outl(0x00001409, chip->port+HCFG); */
-	/* outl(0x00000009, chip->port+HCFG); */
+	/* outl(0x00001409, chip->port + CA0106_HCFG); */
+	/* outl(0x00000009, chip->port + CA0106_HCFG); */
 	/* AC97 2.0, Enable outputs. */
-	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
+	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port + CA0106_HCFG);
 
 	if (chip->details->i2c_adc == 1) {
 		/* The SB0410 and SB0413 use I2C to control ADC. */
@@ -1560,12 +1560,12 @@ static void ca0106_stop_chip(struct snd_ca0106 *chip)
 {
 	/* disable interrupts */
 	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
-	outl(0, chip->port + INTE);
+	outl(0, chip->port + CA0106_INTE);
 	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
 	udelay(1000);
 	/* disable audio */
 	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
-	outl(0, chip->port + HCFG);
+	outl(0, chip->port + CA0106_HCFG);
 	/* FIXME: We need to stop and DMA transfers here.
 	 *        But as I am not sure how yet, we cannot from the dma pages.
 	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index c852c6a75b91..05f56015ddd8 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -70,8 +70,8 @@ static void ca0106_spdif_enable(struct snd_ca0106 *emu)
 		snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x0b000000);
 		val = snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) & ~0x1000;
 		snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0, val);
-		val = inl(emu->port + GPIO) & ~0x101;
-		outl(val, emu->port + GPIO);
+		val = inl(emu->port + CA0106_GPIO) & ~0x101;
+		outl(val, emu->port + CA0106_GPIO);
 
 	} else {
 		/* Analog */
@@ -79,8 +79,8 @@ static void ca0106_spdif_enable(struct snd_ca0106 *emu)
 		snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x000f0000);
 		val = snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) | 0x1000;
 		snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0, val);
-		val = inl(emu->port + GPIO) | 0x101;
-		outl(val, emu->port + GPIO);
+		val = inl(emu->port + CA0106_GPIO) | 0x101;
+		outl(val, emu->port + CA0106_GPIO);
 	}
 }
 
@@ -119,14 +119,14 @@ static void ca0106_set_capture_mic_line_in(struct snd_ca0106 *emu)
 
 	if (emu->capture_mic_line_in) {
 		/* snd_ca0106_i2c_write(emu, ADC_MUX, 0); */ /* Mute input */
-		tmp = inl(emu->port+GPIO) & ~0x400;
+		tmp = inl(emu->port + CA0106_GPIO) & ~0x400;
 		tmp = tmp | 0x400;
-		outl(tmp, emu->port+GPIO);
+		outl(tmp, emu->port + CA0106_GPIO);
 		/* snd_ca0106_i2c_write(emu, ADC_MUX, ADC_MUX_MIC); */
 	} else {
 		/* snd_ca0106_i2c_write(emu, ADC_MUX, 0); */ /* Mute input */
-		tmp = inl(emu->port+GPIO) & ~0x400;
-		outl(tmp, emu->port+GPIO);
+		tmp = inl(emu->port + CA0106_GPIO) & ~0x400;
+		outl(tmp, emu->port + CA0106_GPIO);
 		/* snd_ca0106_i2c_write(emu, ADC_MUX, ADC_MUX_LINEIN); */
 	}
 }
diff --git a/sound/pci/echoaudio/midi.c b/sound/pci/echoaudio/midi.c
index cb72d27e809e..7be5c3327b16 100644
--- a/sound/pci/echoaudio/midi.c
+++ b/sound/pci/echoaudio/midi.c
@@ -208,7 +208,7 @@ static void snd_echo_midi_output_write(struct timer_list *t)
 
 	/* No interrupts are involved: we have to check at regular intervals
 	if the card's output buffer has room for new data. */
-	sent = bytes = 0;
+	sent = 0;
 	spin_lock_irqsave(&chip->lock, flags);
 	chip->midi_full = 0;
 	if (!snd_rawmidi_transmit_empty(chip->midi_out)) {
diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
index febe1c2b7d9a..9f6c99c1d87b 100644
--- a/sound/pci/hda/Kconfig
+++ b/sound/pci/hda/Kconfig
@@ -285,15 +285,16 @@ config SND_HDA_INTEL_HDMI_SILENT_STREAM
 	bool "Enable Silent Stream always for HDMI"
 	depends on SND_HDA_INTEL
 	help
-	  Intel hardware has a feature called 'silent stream', that
-	  keeps external HDMI receiver's analog circuitry powered on
-	  avoiding 2-3 sec silence during playback start. This mechanism
-	  relies on setting channel_id as 0xf, sending info packet and
-	  preventing codec D3 entry (increasing  platform static power
-	  consumption when HDMI receiver is plugged-in). 2-3 sec silence
-	  at the playback start is expected whenever there is format change.
-	  (default is 2 channel format).
-	  Say Y to enable Silent Stream feature.
+	  Say Y to enable HD-Audio Keep Alive (KAE) aka Silent Stream
+	  for HDMI on hardware that supports the feature.
+
+	  When enabled, the HDMI/DisplayPort codec will continue to provide
+	  a continuous clock and a valid but silent data stream to
+	  any connected external receiver. This allows to avoid gaps
+	  at start of playback. Many receivers require multiple seconds
+	  to start playing audio after the clock has been stopped.
+	  This feature can impact power consumption as resources
+	  are kept reserved both at transmitter and receiver.
 
 endif
 
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index f552785d301e..5cbac315dbe1 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -766,6 +766,10 @@ static void codec_release_pcms(struct hda_codec *codec)
 	}
 }
 
+/**
+ * snd_hda_codec_cleanup_for_unbind - Prepare codec for removal
+ * @codec: codec device to cleanup
+ */
 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
 {
 	if (codec->registered) {
@@ -813,7 +817,12 @@ void snd_hda_codec_display_power(struct hda_codec *codec, bool enable)
 		snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
 }
 
-/* also called from hda_bind.c */
+/**
+ * snd_hda_codec_register - Finalize codec initialization
+ * @codec: codec device to register
+ *
+ * Also called from hda_bind.c
+ */
 void snd_hda_codec_register(struct hda_codec *codec)
 {
 	if (codec->registered)
@@ -826,6 +835,7 @@ void snd_hda_codec_register(struct hda_codec *codec)
 		codec->registered = 1;
 	}
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_register);
 
 static int snd_hda_codec_dev_register(struct snd_device *device)
 {
@@ -833,10 +843,12 @@ static int snd_hda_codec_dev_register(struct snd_device *device)
 	return 0;
 }
 
-static int snd_hda_codec_dev_free(struct snd_device *device)
+/**
+ * snd_hda_codec_unregister - Unregister specified codec device
+ * @codec: codec device to unregister
+ */
+void snd_hda_codec_unregister(struct hda_codec *codec)
 {
-	struct hda_codec *codec = device->device_data;
-
 	codec->in_freeing = 1;
 	/*
 	 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
@@ -853,7 +865,12 @@ static int snd_hda_codec_dev_free(struct snd_device *device)
 	 */
 	if (codec->core.type == HDA_DEV_LEGACY)
 		put_device(hda_codec_dev(codec));
+}
+EXPORT_SYMBOL_GPL(snd_hda_codec_unregister);
 
+static int snd_hda_codec_dev_free(struct snd_device *device)
+{
+	snd_hda_codec_unregister(device->device_data);
 	return 0;
 }
 
@@ -877,36 +894,48 @@ static void snd_hda_codec_dev_release(struct device *dev)
 
 #define DEV_NAME_LEN 31
 
-static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
-			unsigned int codec_addr, struct hda_codec **codecp)
+/**
+ * snd_hda_codec_device_init - allocate HDA codec device
+ * @bus: codec's parent bus
+ * @codec_addr: the codec address on the parent bus
+ * @fmt: format string for the device's name
+ *
+ * Returns newly allocated codec device or ERR_PTR() on failure.
+ */
+struct hda_codec *
+snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
+			  const char *fmt, ...)
 {
+	va_list vargs;
 	char name[DEV_NAME_LEN];
 	struct hda_codec *codec;
 	int err;
 
-	dev_dbg(card->dev, "%s: entry\n", __func__);
-
 	if (snd_BUG_ON(!bus))
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 
 	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 	if (!codec)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
+
+	va_start(vargs, fmt);
+	vsprintf(name, fmt, vargs);
+	va_end(vargs);
 
-	sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
 	err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
 	if (err < 0) {
 		kfree(codec);
-		return err;
+		return ERR_PTR(err);
 	}
 
+	codec->bus = bus;
 	codec->core.type = HDA_DEV_LEGACY;
-	*codecp = codec;
 
-	return err;
+	return codec;
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
 
 /**
  * snd_hda_codec_new - create a HDA codec
@@ -920,18 +949,21 @@ static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		      unsigned int codec_addr, struct hda_codec **codecp)
 {
-	int ret;
+	struct hda_codec *codec;
 
-	ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
-	if (ret < 0)
-		return ret;
+	codec = snd_hda_codec_device_init(bus, codec_addr, "hdaudioC%dD%d",
+					  card->number, codec_addr);
+	if (IS_ERR(codec))
+		return PTR_ERR(codec);
+	*codecp = codec;
 
-	return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
+	return snd_hda_codec_device_new(bus, card, codec_addr, *codecp, true);
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
 
 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
-			unsigned int codec_addr, struct hda_codec *codec)
+			unsigned int codec_addr, struct hda_codec *codec,
+			bool snddev_managed)
 {
 	char component[31];
 	hda_nid_t fg;
@@ -951,7 +983,6 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 	codec->core.dev.release = snd_hda_codec_dev_release;
 	codec->core.exec_verb = codec_exec_verb;
 
-	codec->bus = bus;
 	codec->card = card;
 	codec->addr = codec_addr;
 	mutex_init(&codec->spdif_mutex);
@@ -1007,9 +1038,12 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 		codec->core.subsystem_id, codec->core.revision_id);
 	snd_component_add(card, component);
 
-	err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
-	if (err < 0)
-		goto error;
+	if (snddev_managed) {
+		/* ASoC features component management instead */
+		err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
+		if (err < 0)
+			goto error;
+	}
 
 	/* PM runtime needs to be enabled later after binding codec */
 	pm_runtime_forbid(&codec->core.dev);
@@ -3371,7 +3405,12 @@ int snd_hda_add_new_ctls(struct hda_codec *codec,
 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
 
 #ifdef CONFIG_PM
-static void codec_set_power_save(struct hda_codec *codec, int delay)
+/**
+ * snd_hda_codec_set_power_save - Configure codec's runtime PM
+ * @codec: codec device to configure
+ * @delay: autosuspend delay
+ */
+void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay)
 {
 	struct device *dev = hda_codec_dev(codec);
 
@@ -3389,6 +3428,7 @@ static void codec_set_power_save(struct hda_codec *codec, int delay)
 		pm_runtime_forbid(dev);
 	}
 }
+EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_save);
 
 /**
  * snd_hda_set_power_save - reprogram autosuspend for the given delay
@@ -3402,7 +3442,7 @@ void snd_hda_set_power_save(struct hda_bus *bus, int delay)
 	struct hda_codec *c;
 
 	list_for_each_codec(c, bus)
-		codec_set_power_save(c, delay);
+		snd_hda_codec_set_power_save(c, delay);
 }
 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
 
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 572ff0d1fafe..0a83eb6b88b1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2066,14 +2066,16 @@ static const struct hda_controller_ops pci_hda_ops = {
 	.position_check = azx_position_check,
 };
 
+static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
+
 static int azx_probe(struct pci_dev *pci,
 		     const struct pci_device_id *pci_id)
 {
-	static int dev;
 	struct snd_card *card;
 	struct hda_intel *hda;
 	struct azx *chip;
 	bool schedule_probe;
+	int dev;
 	int err;
 
 	if (pci_match_id(driver_denylist, pci)) {
@@ -2081,10 +2083,11 @@ static int azx_probe(struct pci_dev *pci,
 		return -ENODEV;
 	}
 
+	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
 	if (dev >= SNDRV_CARDS)
 		return -ENODEV;
 	if (!enable[dev]) {
-		dev++;
+		set_bit(dev, probed_devs);
 		return -ENOENT;
 	}
 
@@ -2151,7 +2154,7 @@ static int azx_probe(struct pci_dev *pci,
 	if (schedule_probe)
 		schedule_delayed_work(&hda->probe_work, 0);
 
-	dev++;
+	set_bit(dev, probed_devs);
 	if (chip->disabled)
 		complete_all(&hda->probe_wait);
 	return 0;
@@ -2374,6 +2377,7 @@ static void azx_remove(struct pci_dev *pci)
 		cancel_delayed_work_sync(&hda->probe_work);
 		device_lock(&pci->dev);
 
+		clear_bit(chip->dev_index, probed_devs);
 		pci_set_drvdata(pci, NULL);
 		snd_card_free(card);
 	}
@@ -2495,6 +2499,8 @@ static const struct pci_device_id azx_ids[] = {
 	/* Alderlake-P */
 	{ PCI_DEVICE(0x8086, 0x51c8),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x51c9),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
 	{ PCI_DEVICE(0x8086, 0x51cd),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
 	/* Alderlake-M */
@@ -2508,6 +2514,17 @@ static const struct pci_device_id azx_ids[] = {
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
 	{ PCI_DEVICE(0x8086, 0x4b58),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	/* Raptor Lake */
+	{ PCI_DEVICE(0x8086, 0x7a50),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x51ca),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x51cb),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x51ce),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x51cf),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
 	/* Broxton-P(Apollolake) */
 	{ PCI_DEVICE(0x8086, 0x5a98),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 8621f576446b..aca592651870 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -135,8 +135,6 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 #define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \
 	__snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)
 int snd_hda_codec_reset(struct hda_codec *codec);
-void snd_hda_codec_register(struct hda_codec *codec);
-void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
 void snd_hda_codec_disconnect_pcms(struct hda_codec *codec);
 
 #define snd_hda_regmap_sync(codec)	snd_hdac_regmap_sync(&(codec)->core)
diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 773f4903550a..2347d0304f93 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -70,6 +70,7 @@
 
 struct hda_tegra_soc {
 	bool has_hda2codec_2x_reset;
+	bool has_hda2hdmi;
 };
 
 struct hda_tegra {
@@ -314,6 +315,18 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
 	 * hardcoded value
 	 */
 	chip->capture_streams = (gcap >> 8) & 0x0f;
+
+	/* The GCAP register on Tegra234 implies no Input Streams(ISS) support,
+	 * but the HW output stream descriptor programming should start with
+	 * offset 0x20*4 from base stream descriptor address. This will be a
+	 * problem while calculating the offset for output stream descriptor
+	 * which will be considering input stream also. So here output stream
+	 * starts with offset 0 which is wrong as HW register for output stream
+	 * offset starts with 4.
+	 */
+	if (of_device_is_compatible(np, "nvidia,tegra234-hda"))
+		chip->capture_streams = 4;
+
 	chip->playback_streams = (gcap >> 12) & 0x0f;
 	if (!chip->playback_streams && !chip->capture_streams) {
 		/* gcap didn't give any info, switching to old method */
@@ -435,15 +448,23 @@ static int hda_tegra_create(struct snd_card *card,
 
 static const struct hda_tegra_soc tegra30_data = {
 	.has_hda2codec_2x_reset = true,
+	.has_hda2hdmi = true,
 };
 
 static const struct hda_tegra_soc tegra194_data = {
 	.has_hda2codec_2x_reset = false,
+	.has_hda2hdmi = true,
+};
+
+static const struct hda_tegra_soc tegra234_data = {
+	.has_hda2codec_2x_reset = true,
+	.has_hda2hdmi = false,
 };
 
 static const struct of_device_id hda_tegra_match[] = {
 	{ .compatible = "nvidia,tegra30-hda", .data = &tegra30_data },
 	{ .compatible = "nvidia,tegra194-hda", .data = &tegra194_data },
+	{ .compatible = "nvidia,tegra234-hda", .data = &tegra234_data },
 	{},
 };
 MODULE_DEVICE_TABLE(of, hda_tegra_match);
@@ -473,7 +494,14 @@ static int hda_tegra_probe(struct platform_device *pdev)
 	}
 
 	hda->resets[hda->nresets++].id = "hda";
-	hda->resets[hda->nresets++].id = "hda2hdmi";
+
+	/*
+	 * "hda2hdmi" is not applicable for Tegra234. This is because the
+	 * codec is separate IP and not under display SOR partition now.
+	 */
+	if (hda->soc->has_hda2hdmi)
+		hda->resets[hda->nresets++].id = "hda2hdmi";
+
 	/*
 	 * "hda2codec_2x" reset is not present on Tegra194. Though DT would
 	 * be updated to reflect this, but to have backward compatibility
@@ -488,7 +516,8 @@ static int hda_tegra_probe(struct platform_device *pdev)
 		goto out_free;
 
 	hda->clocks[hda->nclocks++].id = "hda";
-	hda->clocks[hda->nclocks++].id = "hda2hdmi";
+	if (hda->soc->has_hda2hdmi)
+		hda->clocks[hda->nclocks++].id = "hda2hdmi";
 	hda->clocks[hda->nclocks++].id = "hda2codec_2x";
 
 	err = devm_clk_bulk_get(&pdev->dev, hda->nclocks, hda->clocks);
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 92df4f243ec6..c85ed7bc121e 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -120,6 +120,12 @@ struct hdmi_pcm {
 	struct snd_kcontrol *eld_ctl;
 };
 
+enum {
+	SILENT_STREAM_OFF = 0,
+	SILENT_STREAM_KAE,	/* use standard HDA Keep-Alive */
+	SILENT_STREAM_I915,	/* Intel i915 extension */
+};
+
 struct hdmi_spec {
 	struct hda_codec *codec;
 	int num_cvts;
@@ -162,6 +168,8 @@ struct hdmi_spec {
 	bool dyn_pin_out;
 	bool dyn_pcm_assign;
 	bool dyn_pcm_no_legacy;
+	/* hdmi interrupt trigger control flag for Nvidia codec */
+	bool hdmi_intr_trig_ctrl;
 	bool intel_hsw_fixup;	/* apply Intel platform-specific fixups */
 	/*
 	 * Non-generic VIA/NVIDIA specific
@@ -179,7 +187,7 @@ struct hdmi_spec {
 	hda_nid_t vendor_nid;
 	const int *port_map;
 	int port_num;
-	bool send_silent_stream; /* Flag to enable silent stream feature */
+	int silent_stream_type;
 };
 
 #ifdef CONFIG_SND_HDA_COMPONENT
@@ -1665,18 +1673,71 @@ static void hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
 #define I915_SILENT_FORMAT_BITS	16
 #define I915_SILENT_FMT_MASK		0xf
 
+static void silent_stream_enable_i915(struct hda_codec *codec,
+				      struct hdmi_spec_per_pin *per_pin)
+{
+	unsigned int format;
+
+	snd_hdac_sync_audio_rate(&codec->core, per_pin->pin_nid,
+				 per_pin->dev_id, I915_SILENT_RATE);
+
+	/* trigger silent stream generation in hw */
+	format = snd_hdac_calc_stream_format(I915_SILENT_RATE, I915_SILENT_CHANNELS,
+					     I915_SILENT_FORMAT, I915_SILENT_FORMAT_BITS, 0);
+	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid,
+				   I915_SILENT_FMT_MASK, I915_SILENT_FMT_MASK, format);
+	usleep_range(100, 200);
+	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid, I915_SILENT_FMT_MASK, 0, format);
+
+	per_pin->channels = I915_SILENT_CHANNELS;
+	hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+}
+
+static void silent_stream_set_kae(struct hda_codec *codec,
+				  struct hdmi_spec_per_pin *per_pin,
+				  bool enable)
+{
+	unsigned int param;
+
+	codec_dbg(codec, "HDMI: KAE %d cvt-NID=0x%x\n", enable, per_pin->cvt_nid);
+
+	param = snd_hda_codec_read(codec, per_pin->cvt_nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
+	param = (param >> 16) & 0xff;
+
+	if (enable)
+		param |= AC_DIG3_KAE;
+	else
+		param &= ~AC_DIG3_KAE;
+
+	snd_hda_codec_write(codec, per_pin->cvt_nid, 0, AC_VERB_SET_DIGI_CONVERT_3, param);
+}
+
 static void silent_stream_enable(struct hda_codec *codec,
 				 struct hdmi_spec_per_pin *per_pin)
 {
 	struct hdmi_spec *spec = codec->spec;
 	struct hdmi_spec_per_cvt *per_cvt;
 	int cvt_idx, pin_idx, err;
-	unsigned int format;
+	int keep_power = 0;
+
+	/*
+	 * Power-up will call hdmi_present_sense, so the PM calls
+	 * have to be done without mutex held.
+	 */
+
+	err = snd_hda_power_up_pm(codec);
+	if (err < 0 && err != -EACCES) {
+		codec_err(codec,
+			  "Failed to power up codec for silent stream enable ret=[%d]\n", err);
+		snd_hda_power_down_pm(codec);
+		return;
+	}
 
 	mutex_lock(&per_pin->lock);
 
 	if (per_pin->setup) {
 		codec_dbg(codec, "hdmi: PCM already open, no silent stream\n");
+		err = -EBUSY;
 		goto unlock_out;
 	}
 
@@ -1703,22 +1764,23 @@ static void silent_stream_enable(struct hda_codec *codec,
 	/* configure unused pins to choose other converters */
 	pin_cvt_fixup(codec, per_pin, 0);
 
-	snd_hdac_sync_audio_rate(&codec->core, per_pin->pin_nid,
-				 per_pin->dev_id, I915_SILENT_RATE);
-
-	/* trigger silent stream generation in hw */
-	format = snd_hdac_calc_stream_format(I915_SILENT_RATE, I915_SILENT_CHANNELS,
-					     I915_SILENT_FORMAT, I915_SILENT_FORMAT_BITS, 0);
-	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid,
-				   I915_SILENT_FMT_MASK, I915_SILENT_FMT_MASK, format);
-	usleep_range(100, 200);
-	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid, I915_SILENT_FMT_MASK, 0, format);
-
-	per_pin->channels = I915_SILENT_CHANNELS;
-	hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+	switch (spec->silent_stream_type) {
+	case SILENT_STREAM_KAE:
+		silent_stream_set_kae(codec, per_pin, true);
+		break;
+	case SILENT_STREAM_I915:
+		silent_stream_enable_i915(codec, per_pin);
+		keep_power = 1;
+		break;
+	default:
+		break;
+	}
 
  unlock_out:
 	mutex_unlock(&per_pin->lock);
+
+	if (err || !keep_power)
+		snd_hda_power_down_pm(codec);
 }
 
 static void silent_stream_disable(struct hda_codec *codec,
@@ -1726,7 +1788,16 @@ static void silent_stream_disable(struct hda_codec *codec,
 {
 	struct hdmi_spec *spec = codec->spec;
 	struct hdmi_spec_per_cvt *per_cvt;
-	int cvt_idx;
+	int cvt_idx, err;
+
+	err = snd_hda_power_up_pm(codec);
+	if (err < 0 && err != -EACCES) {
+		codec_err(codec,
+			  "Failed to power up codec for silent stream disable ret=[%d]\n",
+			  err);
+		snd_hda_power_down_pm(codec);
+		return;
+	}
 
 	mutex_lock(&per_pin->lock);
 	if (!per_pin->silent_stream)
@@ -1741,11 +1812,20 @@ static void silent_stream_disable(struct hda_codec *codec,
 		per_cvt->assigned = 0;
 	}
 
+	if (spec->silent_stream_type == SILENT_STREAM_I915) {
+		/* release ref taken in silent_stream_enable() */
+		snd_hda_power_down_pm(codec);
+	} else if (spec->silent_stream_type == SILENT_STREAM_KAE) {
+		silent_stream_set_kae(codec, per_pin, false);
+	}
+
 	per_pin->cvt_nid = 0;
 	per_pin->silent_stream = false;
 
  unlock_out:
 	mutex_unlock(&per_pin->lock);
+
+	snd_hda_power_down_pm(codec);
 }
 
 /* update ELD and jack state via audio component */
@@ -1767,29 +1847,11 @@ static void sync_eld_via_acomp(struct hda_codec *codec,
 	monitor_next = per_pin->sink_eld.monitor_present;
 	mutex_unlock(&per_pin->lock);
 
-	/*
-	 * Power-up will call hdmi_present_sense, so the PM calls
-	 * have to be done without mutex held.
-	 */
-
-	if (spec->send_silent_stream) {
-		int pm_ret;
-
-		if (!monitor_prev && monitor_next) {
-			pm_ret = snd_hda_power_up_pm(codec);
-			if (pm_ret < 0)
-				codec_err(codec,
-				"Monitor plugged-in, Failed to power up codec ret=[%d]\n",
-				pm_ret);
+	if (spec->silent_stream_type) {
+		if (!monitor_prev && monitor_next)
 			silent_stream_enable(codec, per_pin);
-		} else if (monitor_prev && !monitor_next) {
+		else if (monitor_prev && !monitor_next)
 			silent_stream_disable(codec, per_pin);
-			pm_ret = snd_hda_power_down_pm(codec);
-			if (pm_ret < 0)
-				codec_err(codec,
-				"Monitor plugged-out, Failed to power down codec ret=[%d]\n",
-				pm_ret);
-		}
 	}
 }
 
@@ -2982,7 +3044,7 @@ static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid,
 	 * module param or Kconfig option
 	 */
 	if (send_silent_stream)
-		spec->send_silent_stream = true;
+		spec->silent_stream_type = SILENT_STREAM_I915;
 
 	return parse_intel_hdmi(codec);
 }
@@ -3035,6 +3097,22 @@ static int patch_i915_tgl_hdmi(struct hda_codec *codec)
 	return ret;
 }
 
+static int patch_i915_adlp_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int res;
+
+	res = patch_i915_tgl_hdmi(codec);
+	if (!res) {
+		spec = codec->spec;
+
+		if (spec->silent_stream_type)
+			spec->silent_stream_type = SILENT_STREAM_KAE;
+	}
+
+	return res;
+}
+
 /* Intel Baytrail and Braswell; with eld notifier */
 static int patch_i915_byt_hdmi(struct hda_codec *codec)
 {
@@ -3721,8 +3799,11 @@ static int patch_nvhdmi_legacy(struct hda_codec *codec)
  * +-----------------------------------|
  *
  * Note that for the trigger bit to take effect it needs to change value
- * (i.e. it needs to be toggled).
+ * (i.e. it needs to be toggled). The trigger bit is not applicable from
+ * TEGRA234 chip onwards, as new verb id 0xf80 will be used for interrupt
+ * trigger to hdmi.
  */
+#define NVIDIA_SET_HOST_INTR		0xf80
 #define NVIDIA_GET_SCRATCH0		0xfa6
 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
@@ -3741,25 +3822,38 @@ static int patch_nvhdmi_legacy(struct hda_codec *codec)
  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
  * the format is invalidated so that the HDMI codec can be disabled.
  */
-static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
+static void tegra_hdmi_set_format(struct hda_codec *codec,
+				  hda_nid_t cvt_nid,
+				  unsigned int format)
 {
 	unsigned int value;
+	unsigned int nid = NVIDIA_AFG_NID;
+	struct hdmi_spec *spec = codec->spec;
+
+	/*
+	 * Tegra HDA codec design from TEGRA234 chip onwards support DP MST.
+	 * This resulted in moving scratch registers from audio function
+	 * group to converter widget context. So CVT NID should be used for
+	 * scratch register read/write for DP MST supported Tegra HDA codec.
+	 */
+	if (codec->dp_mst)
+		nid = cvt_nid;
 
 	/* bits [31:30] contain the trigger and valid bits */
-	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
+	value = snd_hda_codec_read(codec, nid, 0,
 				   NVIDIA_GET_SCRATCH0, 0);
 	value = (value >> 24) & 0xff;
 
 	/* bits [15:0] are used to store the HDA format */
-	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+	snd_hda_codec_write(codec, nid, 0,
 			    NVIDIA_SET_SCRATCH0_BYTE0,
 			    (format >> 0) & 0xff);
-	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+	snd_hda_codec_write(codec, nid, 0,
 			    NVIDIA_SET_SCRATCH0_BYTE1,
 			    (format >> 8) & 0xff);
 
 	/* bits [16:24] are unused */
-	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+	snd_hda_codec_write(codec, nid, 0,
 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
 
 	/*
@@ -3771,15 +3865,28 @@ static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
 	else
 		value |= NVIDIA_SCRATCH_VALID;
 
-	/*
-	 * Whenever the trigger bit is toggled, an interrupt is raised in the
-	 * HDMI codec. The HDMI driver will use that as trigger to update its
-	 * configuration.
-	 */
-	value ^= NVIDIA_SCRATCH_TRIGGER;
+	if (spec->hdmi_intr_trig_ctrl) {
+		/*
+		 * For Tegra HDA Codec design from TEGRA234 onwards, the
+		 * Interrupt to hdmi driver is triggered by writing
+		 * non-zero values to verb 0xF80 instead of 31st bit of
+		 * scratch register.
+		 */
+		snd_hda_codec_write(codec, nid, 0,
+				NVIDIA_SET_SCRATCH0_BYTE3, value);
+		snd_hda_codec_write(codec, nid, 0,
+				NVIDIA_SET_HOST_INTR, 0x1);
+	} else {
+		/*
+		 * Whenever the 31st trigger bit is toggled, an interrupt is raised
+		 * in the HDMI codec. The HDMI driver will use that as trigger
+		 * to update its configuration.
+		 */
+		value ^= NVIDIA_SCRATCH_TRIGGER;
 
-	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
-			    NVIDIA_SET_SCRATCH0_BYTE3, value);
+		snd_hda_codec_write(codec, nid, 0,
+				NVIDIA_SET_SCRATCH0_BYTE3, value);
+	}
 }
 
 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
@@ -3796,7 +3903,7 @@ static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
 		return err;
 
 	/* notify the HDMI codec of the format change */
-	tegra_hdmi_set_format(codec, format);
+	tegra_hdmi_set_format(codec, hinfo->nid, format);
 
 	return 0;
 }
@@ -3806,7 +3913,7 @@ static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
 				  struct snd_pcm_substream *substream)
 {
 	/* invalidate the format in the HDMI codec */
-	tegra_hdmi_set_format(codec, 0);
+	tegra_hdmi_set_format(codec, hinfo->nid, 0);
 
 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
 }
@@ -3851,17 +3958,29 @@ static int tegra_hdmi_build_pcms(struct hda_codec *codec)
 	return 0;
 }
 
-static int patch_tegra_hdmi(struct hda_codec *codec)
+static int tegra_hdmi_init(struct hda_codec *codec)
 {
-	struct hdmi_spec *spec;
-	int err;
+	struct hdmi_spec *spec = codec->spec;
+	int i, err;
 
-	err = patch_generic_hdmi(codec);
-	if (err)
+	err = hdmi_parse_codec(codec);
+	if (err < 0) {
+		generic_spec_free(codec);
 		return err;
+	}
+
+	for (i = 0; i < spec->num_cvts; i++)
+		snd_hda_codec_write(codec, spec->cvt_nids[i], 0,
+					AC_VERB_SET_DIGI_CONVERT_1,
+					AC_DIG1_ENABLE);
+
+	generic_hdmi_init_per_pins(codec);
 
 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
-	spec = codec->spec;
+	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
+		nvhdmi_chmap_cea_alloc_validate_get_type;
+	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
+
 	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
 		nvhdmi_chmap_cea_alloc_validate_get_type;
 	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
@@ -3869,6 +3988,36 @@ static int patch_tegra_hdmi(struct hda_codec *codec)
 	return 0;
 }
 
+static int patch_tegra_hdmi(struct hda_codec *codec)
+{
+	int err;
+
+	err = alloc_generic_hdmi(codec);
+	if (err < 0)
+		return err;
+
+	return tegra_hdmi_init(codec);
+}
+
+static int patch_tegra234_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = alloc_generic_hdmi(codec);
+	if (err < 0)
+		return err;
+
+	codec->dp_mst = true;
+	codec->mst_no_extra_pcms = true;
+	spec = codec->spec;
+	spec->dyn_pin_out = true;
+	spec->dyn_pcm_assign = true;
+	spec->hdmi_intr_trig_ctrl = true;
+
+	return tegra_hdmi_init(codec);
+}
+
 /*
  * ATI/AMD-specific implementations
  */
@@ -4322,6 +4471,7 @@ HDA_CODEC_ENTRY(0x10de002d, "Tegra186 HDMI/DP0", patch_tegra_hdmi),
 HDA_CODEC_ENTRY(0x10de002e, "Tegra186 HDMI/DP1", patch_tegra_hdmi),
 HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),
 HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0031, "Tegra234 HDMI/DP", patch_tegra234_hdmi),
 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
@@ -4390,10 +4540,11 @@ HDA_CODEC_ENTRY(0x80862812, "Tigerlake HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862814, "DG1 HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862815, "Alderlake HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862816, "Rocketlake HDMI",	patch_i915_tgl_hdmi),
-HDA_CODEC_ENTRY(0x80862819, "DG2 HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862818, "Raptorlake HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862819, "DG2 HDMI",	patch_i915_adlp_hdmi),
 HDA_CODEC_ENTRY(0x8086281a, "Jasperlake HDMI",	patch_i915_icl_hdmi),
 HDA_CODEC_ENTRY(0x8086281b, "Elkhartlake HDMI",	patch_i915_icl_hdmi),
-HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_adlp_hdmi),
 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 75ff7e8498b8..1d14be4ee31d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6662,6 +6662,16 @@ static void cs35l41_fixup_i2c_two(struct hda_codec *cdc, const struct hda_fixup
 	cs35l41_generic_fixup(cdc, action, "i2c", "CSC3551", 2);
 }
 
+static void cs35l41_fixup_spi_two(struct hda_codec *codec, const struct hda_fixup *fix, int action)
+{
+	cs35l41_generic_fixup(codec, action, "spi0", "CSC3551", 2);
+}
+
+static void cs35l41_fixup_spi_four(struct hda_codec *codec, const struct hda_fixup *fix, int action)
+{
+	cs35l41_generic_fixup(codec, action, "spi0", "CSC3551", 4);
+}
+
 static void alc287_legion_16achg6_playback_hook(struct hda_pcm_stream *hinfo, struct hda_codec *cdc,
 						struct snd_pcm_substream *sub, int action)
 {
@@ -6999,6 +7009,9 @@ enum {
 	ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE,
 	ALC287_FIXUP_LEGION_16ACHG6,
 	ALC287_FIXUP_CS35L41_I2C_2,
+	ALC245_FIXUP_CS35L41_SPI_2,
+	ALC245_FIXUP_CS35L41_SPI_4,
+	ALC245_FIXUP_CS35L41_SPI_4_HP_GPIO_LED,
 	ALC285_FIXUP_HP_SPEAKERS_MICMUTE_LED,
 };
 
@@ -8750,6 +8763,20 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cs35l41_fixup_i2c_two,
 	},
+	[ALC245_FIXUP_CS35L41_SPI_2] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs35l41_fixup_spi_two,
+	},
+	[ALC245_FIXUP_CS35L41_SPI_4] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs35l41_fixup_spi_four,
+	},
+	[ALC245_FIXUP_CS35L41_SPI_4_HP_GPIO_LED] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs35l41_fixup_spi_four,
+		.chained = true,
+		.chain_id = ALC285_FIXUP_HP_GPIO_LED,
+	},
 	[ALC285_FIXUP_HP_SPEAKERS_MICMUTE_LED] = {
 		.type = HDA_FIXUP_VERBS,
 		.v.verbs = (const struct hda_verb[]) {
@@ -8977,7 +9004,25 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8896, "HP EliteBook 855 G8 Notebook PC", ALC285_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x8898, "HP EliteBook 845 G8 Notebook PC", ALC285_FIXUP_HP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x103c, 0x88d0, "HP Pavilion 15-eh1xxx (mainboard 88D0)", ALC287_FIXUP_HP_GPIO_LED),
-	SND_PCI_QUIRK(0x103c, 0x89c3, "HP", ALC285_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x896e, "HP EliteBook x360 830 G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8971, "HP EliteBook 830 G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8972, "HP EliteBook 840 G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8973, "HP EliteBook 860 G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8974, "HP EliteBook 840 Aero G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8975, "HP EliteBook x360 840 Aero G9", ALC245_FIXUP_CS35L41_SPI_2),
+	SND_PCI_QUIRK(0x103c, 0x8981, "HP Elite Dragonfly G3", ALC245_FIXUP_CS35L41_SPI_4),
+	SND_PCI_QUIRK(0x103c, 0x898e, "HP EliteBook 835 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x898f, "HP EliteBook 835 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x8991, "HP EliteBook 845 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x8992, "HP EliteBook 845 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x8994, "HP EliteBook 855 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x8995, "HP EliteBook 855 G9", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x89a4, "HP ProBook 440 G9", ALC236_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89a6, "HP ProBook 450 G9", ALC236_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89ac, "HP EliteBook 640 G9", ALC236_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89ae, "HP EliteBook 650 G9", ALC236_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89c3, "Zbook Studio G9", ALC245_FIXUP_CS35L41_SPI_4_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89c6, "Zbook Fury 17 G9", ALC245_FIXUP_CS35L41_SPI_2),
 	SND_PCI_QUIRK(0x103c, 0x89ca, "HP", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
 	SND_PCI_QUIRK(0x1043, 0x103e, "ASUS X540SA", ALC256_FIXUP_ASUS_MIC),
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
diff --git a/sound/pci/lola/lola_mixer.c b/sound/pci/lola/lola_mixer.c
index e2c8f1417001..6b162489cb5f 100644
--- a/sound/pci/lola/lola_mixer.c
+++ b/sound/pci/lola/lola_mixer.c
@@ -121,6 +121,8 @@ int lola_init_mixer_widget(struct lola *chip, int nid)
 
 	/* reserve memory to copy mixer data for sleep mode transitions */
 	chip->mixer.array_saved = vmalloc(sizeof(struct lola_mixer_array));
+	if (!chip->mixer.array_saved)
+		return -ENOMEM;
 
 	/* mixer matrix sources are physical input data and play streams */
 	chip->mixer.src_stream_outs = chip->pcm[PLAY].num_streams;
diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c
index de5955db0a5f..667f3df239c7 100644
--- a/sound/soc/codecs/hdac_hda.c
+++ b/sound/soc/codecs/hdac_hda.c
@@ -413,7 +413,7 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
 				       HDA_CODEC_IDX_CONTROLLER, true);
 
 	ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
-				       hdev->addr, hcodec);
+				       hdev->addr, hcodec, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
 		goto error_no_pm;
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 90d118cd9164..3332fe321737 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -136,11 +136,7 @@ struct sound_unit
  * All these clutters are scheduled to be removed along with
  * sound-slot/service-* module aliases.
  */
-#ifdef CONFIG_SOUND_OSS_CORE_PRECLAIM
-static int preclaim_oss = 1;
-#else
-static int preclaim_oss = 0;
-#endif
+static int preclaim_oss = IS_ENABLED(CONFIG_SOUND_OSS_CORE_PRECLAIM);
 
 module_param(preclaim_oss, int, 0444);
 
@@ -581,20 +577,20 @@ static int soundcore_open(struct inode *inode, struct file *file)
 			new_fops = fops_get(s->unit_fops);
 	}
 	spin_unlock(&sound_loader_lock);
-	if (new_fops) {
-		/*
-		 * We rely upon the fact that we can't be unloaded while the
-		 * subdriver is there.
-		 */
-		int err = 0;
-		replace_fops(file, new_fops);
 
-		if (file->f_op->open)
-			err = file->f_op->open(inode,file);
+	if (!new_fops)
+		return -ENODEV;
 
-		return err;
-	}
-	return -ENODEV;
+	/*
+	 * We rely upon the fact that we can't be unloaded while the
+	 * subdriver is there.
+	 */
+	replace_fops(file, new_fops);
+
+	if (!file->f_op->open)
+		return -ENODEV;
+
+	return file->f_op->open(inode, file);
 }
 
 MODULE_ALIAS_CHARDEV_MAJOR(SOUND_MAJOR);
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index 76c0e37a838c..8a2da6b1012e 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -218,7 +218,9 @@ static int snd_at73c213_pcm_open(struct snd_pcm_substream *substream)
 	runtime->hw = snd_at73c213_playback_hw;
 	chip->substream = substream;
 
-	clk_enable(chip->ssc->clk);
+	err = clk_enable(chip->ssc->clk);
+	if (err)
+		return err;
 
 	return 0;
 }
@@ -776,7 +778,9 @@ static int snd_at73c213_chip_init(struct snd_at73c213 *chip)
 		goto out;
 
 	/* Enable DAC master clock. */
-	clk_enable(chip->board->dac_clk);
+	retval = clk_enable(chip->board->dac_clk);
+	if (retval)
+		goto out;
 
 	/* Initialize at73c213 on SPI bus. */
 	retval = snd_at73c213_write_reg(chip, DAC_RST, 0x04);
@@ -889,7 +893,9 @@ static int snd_at73c213_dev_init(struct snd_card *card,
 	chip->card = card;
 	chip->irq = -1;
 
-	clk_enable(chip->ssc->clk);
+	retval = clk_enable(chip->ssc->clk);
+	if (retval)
+		return retval;
 
 	retval = request_irq(irq, snd_at73c213_interrupt, 0, "at73c213", chip);
 	if (retval) {
@@ -1008,7 +1014,9 @@ static int snd_at73c213_remove(struct spi_device *spi)
 	int retval;
 
 	/* Stop playback. */
-	clk_enable(chip->ssc->clk);
+	retval = clk_enable(chip->ssc->clk);
+	if (retval)
+		goto out;
 	ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXDIS));
 	clk_disable(chip->ssc->clk);
 
@@ -1088,9 +1096,16 @@ static int snd_at73c213_resume(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct snd_at73c213 *chip = card->private_data;
+	int retval;
 
-	clk_enable(chip->board->dac_clk);
-	clk_enable(chip->ssc->clk);
+	retval = clk_enable(chip->board->dac_clk);
+	if (retval)
+		return retval;
+	retval = clk_enable(chip->ssc->clk);
+	if (retval) {
+		clk_disable(chip->board->dac_clk);
+		return retval;
+	}
 	ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXEN));
 
 	return 0;
diff --git a/sound/usb/mixer_s1810c.c b/sound/usb/mixer_s1810c.c
index 0255089c9efb..fac4bbc6b275 100644
--- a/sound/usb/mixer_s1810c.c
+++ b/sound/usb/mixer_s1810c.c
@@ -221,7 +221,7 @@ static int snd_s1810c_init_mixer_maps(struct snd_usb_audio *chip)
 	e = 0xbc;
 	for (n = 0; n < 2; n++) {
 		off = n * 18;
-		for (b = off, c = 0; b < 18 + off; b++) {
+		for (b = off; b < 18 + off; b++) {
 			/* This channel to all outputs ? */
 			for (c = 0; c <= 8; c++) {
 				snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e);
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 53ebabf42472..69a2cd429ee2 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -6,7 +6,7 @@
  *   - 6i6/18i8/18i20 Gen 2
  *   - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3
  *
- *   Copyright (c) 2018-2021 by Geoffrey D. Bennett <g at b4.vu>
+ *   Copyright (c) 2018-2022 by Geoffrey D. Bennett <g at b4.vu>
  *   Copyright (c) 2020-2021 by Vladimir Sadovnikov <sadko4u@gmail.com>
  *
  *   Based on the Scarlett (Gen 1) Driver for ALSA:
@@ -60,6 +60,7 @@
  *  - phantom power, direct monitor, speaker switching, and talkback
  *    controls
  *  - disable/enable MSD mode
+ *  - disable/enable standalone mode
  *
  * <ditaa>
  *    /--------------\    18chn            20chn     /--------------\
@@ -195,6 +196,16 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
 /* Maximum number of meters (sum of output port counts) */
 #define SCARLETT2_MAX_METERS 65
 
+/* There are three different sets of configuration parameters across
+ * the devices
+ */
+enum {
+	SCARLETT2_CONFIG_SET_NO_MIXER = 0,
+	SCARLETT2_CONFIG_SET_GEN_2 = 1,
+	SCARLETT2_CONFIG_SET_GEN_3 = 2,
+	SCARLETT2_CONFIG_SET_COUNT = 3
+};
+
 /* Hardware port types:
  * - None (no input to mux)
  * - Analogue I/O
@@ -308,10 +319,8 @@ struct scarlett2_device_info {
 	 */
 	u8 has_msd_mode;
 
-	/* Gen 3 devices without a mixer have a different
-	 * configuration set
-	 */
-	u8 has_mixer;
+	/* which set of configuration parameters the device uses */
+	u8 config_set;
 
 	/* line out hw volume is sw controlled */
 	u8 line_out_hw_vol;
@@ -403,6 +412,7 @@ struct scarlett2_data {
 	u8 talkback_switch;
 	u8 talkback_map[SCARLETT2_OUTPUT_MIX_MAX];
 	u8 msd_switch;
+	u8 standalone_switch;
 	struct snd_kcontrol *sync_ctl;
 	struct snd_kcontrol *master_vol_ctl;
 	struct snd_kcontrol *vol_ctls[SCARLETT2_ANALOGUE_MAX];
@@ -426,7 +436,7 @@ struct scarlett2_data {
 static const struct scarlett2_device_info s6i6_gen2_info = {
 	.usb_id = USB_ID(0x1235, 0x8203),
 
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_2,
 	.level_input_count = 2,
 	.pad_input_count = 2,
 
@@ -472,7 +482,7 @@ static const struct scarlett2_device_info s6i6_gen2_info = {
 static const struct scarlett2_device_info s18i8_gen2_info = {
 	.usb_id = USB_ID(0x1235, 0x8204),
 
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_2,
 	.level_input_count = 2,
 	.pad_input_count = 4,
 
@@ -521,7 +531,7 @@ static const struct scarlett2_device_info s18i8_gen2_info = {
 static const struct scarlett2_device_info s18i20_gen2_info = {
 	.usb_id = USB_ID(0x1235, 0x8201),
 
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_2,
 	.line_out_hw_vol = 1,
 
 	.line_out_descrs = {
@@ -576,6 +586,7 @@ static const struct scarlett2_device_info solo_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8211),
 
 	.has_msd_mode = 1,
+	.config_set = SCARLETT2_CONFIG_SET_NO_MIXER,
 	.level_input_count = 1,
 	.level_input_first = 1,
 	.air_input_count = 1,
@@ -588,6 +599,7 @@ static const struct scarlett2_device_info s2i2_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8210),
 
 	.has_msd_mode = 1,
+	.config_set = SCARLETT2_CONFIG_SET_NO_MIXER,
 	.level_input_count = 2,
 	.air_input_count = 2,
 	.phantom_count = 1,
@@ -599,7 +611,7 @@ static const struct scarlett2_device_info s4i4_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8212),
 
 	.has_msd_mode = 1,
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_3,
 	.level_input_count = 2,
 	.pad_input_count = 2,
 	.air_input_count = 2,
@@ -645,7 +657,7 @@ static const struct scarlett2_device_info s8i6_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8213),
 
 	.has_msd_mode = 1,
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_3,
 	.level_input_count = 2,
 	.pad_input_count = 2,
 	.air_input_count = 2,
@@ -698,7 +710,7 @@ static const struct scarlett2_device_info s18i8_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8214),
 
 	.has_msd_mode = 1,
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_3,
 	.line_out_hw_vol = 1,
 	.has_speaker_switching = 1,
 	.level_input_count = 2,
@@ -768,7 +780,7 @@ static const struct scarlett2_device_info s18i20_gen3_info = {
 	.usb_id = USB_ID(0x1235, 0x8215),
 
 	.has_msd_mode = 1,
-	.has_mixer = 1,
+	.config_set = SCARLETT2_CONFIG_SET_GEN_3,
 	.line_out_hw_vol = 1,
 	.has_speaker_switching = 1,
 	.has_talkback = 1,
@@ -926,13 +938,14 @@ enum {
 	SCARLETT2_CONFIG_PAD_SWITCH = 5,
 	SCARLETT2_CONFIG_MSD_SWITCH = 6,
 	SCARLETT2_CONFIG_AIR_SWITCH = 7,
-	SCARLETT2_CONFIG_PHANTOM_SWITCH = 8,
-	SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 9,
-	SCARLETT2_CONFIG_DIRECT_MONITOR = 10,
-	SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 11,
-	SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 12,
-	SCARLETT2_CONFIG_TALKBACK_MAP = 13,
-	SCARLETT2_CONFIG_COUNT = 14
+	SCARLETT2_CONFIG_STANDALONE_SWITCH = 8,
+	SCARLETT2_CONFIG_PHANTOM_SWITCH = 9,
+	SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 10,
+	SCARLETT2_CONFIG_DIRECT_MONITOR = 11,
+	SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 12,
+	SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 13,
+	SCARLETT2_CONFIG_TALKBACK_MAP = 14,
+	SCARLETT2_CONFIG_COUNT = 15
 };
 
 /* Location, size, and activation command number for the configuration
@@ -944,13 +957,11 @@ struct scarlett2_config {
 	u8 activate;
 };
 
-/* scarlett2_config_items[0] is for devices without a mixer
- * scarlett2_config_items[1] is for devices with a mixer
- */
 static const struct scarlett2_config
-	scarlett2_config_items[2][SCARLETT2_CONFIG_COUNT] =
+	scarlett2_config_items[SCARLETT2_CONFIG_SET_COUNT]
+			      [SCARLETT2_CONFIG_COUNT] =
 
-/* Devices without a mixer (Solo and 2i2 Gen 3) */
+/* Devices without a mixer (Gen 3 Solo and 2i2) */
 { {
 	[SCARLETT2_CONFIG_MSD_SWITCH] = {
 		.offset = 0x04, .size = 8, .activate = 6 },
@@ -970,7 +981,30 @@ static const struct scarlett2_config
 	[SCARLETT2_CONFIG_AIR_SWITCH] = {
 		.offset = 0x09, .size = 1, .activate = 8 },
 
-/* Devices with a mixer (Gen 2 and all other Gen 3) */
+/* Gen 2 devices: 6i6, 18i8, 18i20 */
+}, {
+	[SCARLETT2_CONFIG_DIM_MUTE] = {
+		.offset = 0x31, .size = 8, .activate = 2 },
+
+	[SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
+		.offset = 0x34, .size = 16, .activate = 1 },
+
+	[SCARLETT2_CONFIG_MUTE_SWITCH] = {
+		.offset = 0x5c, .size = 8, .activate = 1 },
+
+	[SCARLETT2_CONFIG_SW_HW_SWITCH] = {
+		.offset = 0x66, .size = 8, .activate = 3 },
+
+	[SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+		.offset = 0x7c, .size = 8, .activate = 7 },
+
+	[SCARLETT2_CONFIG_PAD_SWITCH] = {
+		.offset = 0x84, .size = 8, .activate = 8 },
+
+	[SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+		.offset = 0x8d, .size = 8, .activate = 6 },
+
+/* Gen 3 devices: 4i4, 8i6, 18i8, 18i20 */
 }, {
 	[SCARLETT2_CONFIG_DIM_MUTE] = {
 		.offset = 0x31, .size = 8, .activate = 2 },
@@ -993,6 +1027,9 @@ static const struct scarlett2_config
 	[SCARLETT2_CONFIG_AIR_SWITCH] = {
 		.offset = 0x8c, .size = 8, .activate = 8 },
 
+	[SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+		.offset = 0x95, .size = 8, .activate = 6 },
+
 	[SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
 		.offset = 0x9c, .size = 1, .activate = 8 },
 
@@ -1061,9 +1098,9 @@ static int scarlett2_usb(
 {
 	struct scarlett2_data *private = mixer->private_data;
 	struct usb_device *dev = mixer->chip->dev;
-	u16 req_buf_size = sizeof(struct scarlett2_usb_packet) + req_size;
-	u16 resp_buf_size = sizeof(struct scarlett2_usb_packet) + resp_size;
 	struct scarlett2_usb_packet *req, *resp = NULL;
+	size_t req_buf_size = struct_size(req, data, req_size);
+	size_t resp_buf_size = struct_size(resp, data, resp_size);
 	int err;
 
 	req = kmalloc(req_buf_size, GFP_KERNEL);
@@ -1111,7 +1148,7 @@ static int scarlett2_usb(
 		usb_audio_err(
 			mixer->chip,
 			"Scarlett Gen 2/3 USB response result cmd %x was %d "
-			"expected %d\n",
+			"expected %zu\n",
 			cmd, err, resp_buf_size);
 		err = -EINVAL;
 		goto unlock;
@@ -1175,7 +1212,7 @@ static int scarlett2_usb_get_config(
 	struct scarlett2_data *private = mixer->private_data;
 	const struct scarlett2_device_info *info = private->info;
 	const struct scarlett2_config *config_item =
-		&scarlett2_config_items[info->has_mixer][config_item_num];
+		&scarlett2_config_items[info->config_set][config_item_num];
 	int size, err, i;
 	u8 *buf_8;
 	u8 value;
@@ -1235,7 +1272,7 @@ static int scarlett2_usb_set_config(
 	struct scarlett2_data *private = mixer->private_data;
 	const struct scarlett2_device_info *info = private->info;
 	const struct scarlett2_config *config_item =
-	       &scarlett2_config_items[info->has_mixer][config_item_num];
+	       &scarlett2_config_items[info->config_set][config_item_num];
 	struct {
 		__le32 offset;
 		__le32 bytes;
@@ -1692,7 +1729,7 @@ static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer)
 	struct scarlett2_data *private = mixer->private_data;
 
 	/* devices without a mixer also don't support reporting sync status */
-	if (!private->info->has_mixer)
+	if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
 		return 0;
 
 	return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl,
@@ -3399,7 +3436,7 @@ static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer)
 	struct scarlett2_data *private = mixer->private_data;
 
 	/* devices without a mixer also don't support reporting levels */
-	if (!private->info->has_mixer)
+	if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
 		return 0;
 
 	return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl,
@@ -3474,6 +3511,69 @@ static int scarlett2_add_msd_ctl(struct usb_mixer_interface *mixer)
 				     0, 1, "MSD Mode Switch", NULL);
 }
 
+/*** Standalone Control ***/
+
+static int scarlett2_standalone_ctl_get(struct snd_kcontrol *kctl,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct usb_mixer_elem_info *elem = kctl->private_data;
+	struct scarlett2_data *private = elem->head.mixer->private_data;
+
+	ucontrol->value.integer.value[0] = private->standalone_switch;
+	return 0;
+}
+
+static int scarlett2_standalone_ctl_put(struct snd_kcontrol *kctl,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct usb_mixer_elem_info *elem = kctl->private_data;
+	struct usb_mixer_interface *mixer = elem->head.mixer;
+	struct scarlett2_data *private = mixer->private_data;
+
+	int oval, val, err = 0;
+
+	mutex_lock(&private->data_mutex);
+
+	oval = private->standalone_switch;
+	val = !!ucontrol->value.integer.value[0];
+
+	if (oval == val)
+		goto unlock;
+
+	private->standalone_switch = val;
+
+	/* Send switch change to the device */
+	err = scarlett2_usb_set_config(mixer,
+				       SCARLETT2_CONFIG_STANDALONE_SWITCH,
+				       0, val);
+	if (err == 0)
+		err = 1;
+
+unlock:
+	mutex_unlock(&private->data_mutex);
+	return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_standalone_ctl = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "",
+	.info = snd_ctl_boolean_mono_info,
+	.get  = scarlett2_standalone_ctl_get,
+	.put  = scarlett2_standalone_ctl_put,
+};
+
+static int scarlett2_add_standalone_ctl(struct usb_mixer_interface *mixer)
+{
+	struct scarlett2_data *private = mixer->private_data;
+
+	if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
+		return 0;
+
+	/* Add standalone control */
+	return scarlett2_add_new_ctl(mixer, &scarlett2_standalone_ctl,
+				     0, 1, "Standalone Switch", NULL);
+}
+
 /*** Cleanup/Suspend Callbacks ***/
 
 static void scarlett2_private_free(struct usb_mixer_interface *mixer)
@@ -3632,9 +3732,15 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
 		return err;
 
 	/* the rest of the configuration is for devices with a mixer */
-	if (!info->has_mixer)
+	if (info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER)
 		return 0;
 
+	err = scarlett2_usb_get_config(
+		mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
+		1, &private->standalone_switch);
+	if (err < 0)
+		return err;
+
 	err = scarlett2_update_sync(mixer);
 	if (err < 0)
 		return err;
@@ -3957,6 +4063,11 @@ static int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer)
 	if (err < 0)
 		return err;
 
+	/* Create the standalone control */
+	err = scarlett2_add_standalone_ctl(mixer);
+	if (err < 0)
+		return err;
+
 	/* Set up the interrupt polling */
 	err = scarlett2_init_notify(mixer);
 	if (err < 0)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index 4a3ff6468aa7..b00634663346 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1254,18 +1254,6 @@ static snd_pcm_uframes_t had_pcm_pointer(struct snd_pcm_substream *substream)
 }
 
 /*
- * ALSA PCM mmap callback
- */
-static int had_pcm_mmap(struct snd_pcm_substream *substream,
-			struct vm_area_struct *vma)
-{
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-	return remap_pfn_range(vma, vma->vm_start,
-			substream->runtime->dma_addr >> PAGE_SHIFT,
-			vma->vm_end - vma->vm_start, vma->vm_page_prot);
-}
-
-/*
  * ALSA PCM ops
  */
 static const struct snd_pcm_ops had_pcm_ops = {
@@ -1276,7 +1264,6 @@ static const struct snd_pcm_ops had_pcm_ops = {
 	.trigger =	had_pcm_trigger,
 	.sync_stop =	had_pcm_sync_stop,
 	.pointer =	had_pcm_pointer,
-	.mmap =		had_pcm_mmap,
 };
 
 /* process mode change of the running stream; called in mutex */
diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c
index 17f158d7a767..eb2213540fe3 100644
--- a/tools/testing/selftests/alsa/mixer-test.c
+++ b/tools/testing/selftests/alsa/mixer-test.c
@@ -3,7 +3,7 @@
 // kselftest for the ALSA mixer API
 //
 // Original author: Mark Brown <broonie@kernel.org>
-// Copyright (c) 2021 Arm Limited
+// Copyright (c) 2021-2 Arm Limited
 
 // This test will iterate over all cards detected in the system, exercising
 // every mixer control it can find.  This may conflict with other system
@@ -13,6 +13,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
+#include <limits.h>
 #include <string.h>
 #include <getopt.h>
 #include <stdarg.h>
@@ -26,11 +27,12 @@
 
 #include "../kselftest.h"
 
-#define TESTS_PER_CONTROL 3
+#define TESTS_PER_CONTROL 6
 
 struct card_data {
 	snd_ctl_t *handle;
 	int card;
+	struct pollfd pollfd;
 	int num_ctls;
 	snd_ctl_elem_list_t *ctls;
 	struct card_data *next;
@@ -42,6 +44,8 @@ struct ctl_data {
 	snd_ctl_elem_info_t *info;
 	snd_ctl_elem_value_t *def_val;
 	int elem;
+	int event_missing;
+	int event_spurious;
 	struct card_data *card;
 	struct ctl_data *next;
 };
@@ -67,7 +71,8 @@ struct ctl_data *ctl_list = NULL;
 #endif
 
 #ifndef LIB_HAS_LOAD_STRING
-int snd_config_load_string(snd_config_t **config, const char *s, size_t size)
+static int snd_config_load_string(snd_config_t **config, const char *s,
+				  size_t size)
 {
 	snd_input_t *input;
 	snd_config_t *dst;
@@ -95,7 +100,7 @@ int snd_config_load_string(snd_config_t **config, const char *s, size_t size)
 }
 #endif
 
-void find_controls(void)
+static void find_controls(void)
 {
 	char name[32];
 	int card, ctl, err;
@@ -148,6 +153,7 @@ void find_controls(void)
 			if (!ctl_data)
 				ksft_exit_fail_msg("Out of memory\n");
 
+			memset(ctl_data, 0, sizeof(*ctl_data));
 			ctl_data->card = card_data;
 			ctl_data->elem = ctl;
 			ctl_data->name = snd_ctl_elem_list_get_name(card_data->ctls,
@@ -183,6 +189,26 @@ void find_controls(void)
 			ctl_list = ctl_data;
 		}
 
+		/* Set up for events */
+		err = snd_ctl_subscribe_events(card_data->handle, true);
+		if (err < 0) {
+			ksft_exit_fail_msg("snd_ctl_subscribe_events() failed for card %d: %d\n",
+					   card, err);
+		}
+
+		err = snd_ctl_poll_descriptors_count(card_data->handle);
+		if (err != 1) {
+			ksft_exit_fail_msg("Unexpected descriptor count %d for card %d\n",
+					   err, card);
+		}
+
+		err = snd_ctl_poll_descriptors(card_data->handle,
+					       &card_data->pollfd, 1);
+		if (err != 1) {
+			ksft_exit_fail_msg("snd_ctl_poll_descriptors() failed for %d\n",
+				       card, err);
+		}
+
 	next_card:
 		if (snd_card_next(&card) < 0) {
 			ksft_print_msg("snd_card_next");
@@ -193,8 +219,82 @@ void find_controls(void)
 	snd_config_delete(config);
 }
 
-bool ctl_value_index_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val,
-			   int index)
+/*
+ * Block for up to timeout ms for an event, returns a negative value
+ * on error, 0 for no event and 1 for an event.
+ */
+static int wait_for_event(struct ctl_data *ctl, int timeout)
+{
+	unsigned short revents;
+	snd_ctl_event_t *event;
+	int count, err;
+	unsigned int mask = 0;
+	unsigned int ev_id;
+
+	snd_ctl_event_alloca(&event);
+
+	do {
+		err = poll(&(ctl->card->pollfd), 1, timeout);
+		if (err < 0) {
+			ksft_print_msg("poll() failed for %s: %s (%d)\n",
+				       ctl->name, strerror(errno), errno);
+			return -1;
+		}
+		/* Timeout */
+		if (err == 0)
+			return 0;
+
+		err = snd_ctl_poll_descriptors_revents(ctl->card->handle,
+						       &(ctl->card->pollfd),
+						       1, &revents);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_poll_descriptors_revents() failed for %s: %d\n",
+				       ctl->name, err);
+			return err;
+		}
+		if (revents & POLLERR) {
+			ksft_print_msg("snd_ctl_poll_descriptors_revents() reported POLLERR for %s\n",
+				       ctl->name);
+			return -1;
+		}
+		/* No read events */
+		if (!(revents & POLLIN)) {
+			ksft_print_msg("No POLLIN\n");
+			continue;
+		}
+
+		err = snd_ctl_read(ctl->card->handle, event);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_read() failed for %s: %d\n",
+			       ctl->name, err);
+			return err;
+		}
+
+		if (snd_ctl_event_get_type(event) != SND_CTL_EVENT_ELEM)
+			continue;
+
+		/* The ID returned from the event is 1 less than numid */
+		mask = snd_ctl_event_elem_get_mask(event);
+		ev_id = snd_ctl_event_elem_get_numid(event);
+		if (ev_id != snd_ctl_elem_info_get_numid(ctl->info)) {
+			ksft_print_msg("Event for unexpected ctl %s\n",
+				       snd_ctl_event_elem_get_name(event));
+			continue;
+		}
+
+		if ((mask & SND_CTL_EVENT_MASK_REMOVE) == SND_CTL_EVENT_MASK_REMOVE) {
+			ksft_print_msg("Removal event for %s\n",
+				       ctl->name);
+			return -1;
+		}
+	} while ((mask & SND_CTL_EVENT_MASK_VALUE) != SND_CTL_EVENT_MASK_VALUE);
+
+	return 1;
+}
+
+static bool ctl_value_index_valid(struct ctl_data *ctl,
+				  snd_ctl_elem_value_t *val,
+				  int index)
 {
 	long int_val;
 	long long int64_val;
@@ -305,7 +405,7 @@ bool ctl_value_index_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val,
  * Check that the provided value meets the constraints for the
  * provided control.
  */
-bool ctl_value_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val)
+static bool ctl_value_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val)
 {
 	int i;
 	bool valid = true;
@@ -321,7 +421,7 @@ bool ctl_value_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val)
  * Check that we can read the default value and it is valid. Write
  * tests use the read value to restore the default.
  */
-void test_ctl_get_value(struct ctl_data *ctl)
+static void test_ctl_get_value(struct ctl_data *ctl)
 {
 	int err;
 
@@ -356,9 +456,9 @@ out:
 			 ctl->card->card, ctl->elem);
 }
 
-bool show_mismatch(struct ctl_data *ctl, int index,
-		   snd_ctl_elem_value_t *read_val,
-		   snd_ctl_elem_value_t *expected_val)
+static bool show_mismatch(struct ctl_data *ctl, int index,
+			  snd_ctl_elem_value_t *read_val,
+			  snd_ctl_elem_value_t *expected_val)
 {
 	long long expected_int, read_int;
 
@@ -421,13 +521,14 @@ bool show_mismatch(struct ctl_data *ctl, int index,
  * the write to fail, for verifying that invalid writes don't corrupt
  * anything.
  */
-int write_and_verify(struct ctl_data *ctl,
-		     snd_ctl_elem_value_t *write_val,
-		     snd_ctl_elem_value_t *expected_val)
+static int write_and_verify(struct ctl_data *ctl,
+			    snd_ctl_elem_value_t *write_val,
+			    snd_ctl_elem_value_t *expected_val)
 {
 	int err, i;
 	bool error_expected, mismatch_shown;
-	snd_ctl_elem_value_t *read_val, *w_val;
+	snd_ctl_elem_value_t *initial_val, *read_val, *w_val;
+	snd_ctl_elem_value_alloca(&initial_val);
 	snd_ctl_elem_value_alloca(&read_val);
 	snd_ctl_elem_value_alloca(&w_val);
 
@@ -445,6 +546,18 @@ int write_and_verify(struct ctl_data *ctl,
 		snd_ctl_elem_value_copy(expected_val, write_val);
 	}
 
+	/* Store the value before we write */
+	if (snd_ctl_elem_info_is_readable(ctl->info)) {
+		snd_ctl_elem_value_set_id(initial_val, ctl->id);
+
+		err = snd_ctl_elem_read(ctl->card->handle, initial_val);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_elem_read() failed: %s\n",
+				       snd_strerror(err));
+			return err;
+		}
+	}
+
 	/*
 	 * Do the write, if we have an expected value ignore the error
 	 * and carry on to validate the expected value.
@@ -470,6 +583,30 @@ int write_and_verify(struct ctl_data *ctl,
 	}
 
 	/*
+	 * Check for an event if the value changed, or confirm that
+	 * there was none if it didn't.  We rely on the kernel
+	 * generating the notification before it returns from the
+	 * write, this is currently true, should that ever change this
+	 * will most likely break and need updating.
+	 */
+	if (!snd_ctl_elem_info_is_volatile(ctl->info)) {
+		err = wait_for_event(ctl, 0);
+		if (snd_ctl_elem_value_compare(initial_val, read_val)) {
+			if (err < 1) {
+				ksft_print_msg("No event generated for %s\n",
+					       ctl->name);
+				ctl->event_missing++;
+			}
+		} else {
+			if (err != 0) {
+				ksft_print_msg("Spurious event generated for %s\n",
+					       ctl->name);
+				ctl->event_spurious++;
+			}
+		}
+	}
+
+	/*
 	 * Use the libray to compare values, if there's a mismatch
 	 * carry on and try to provide a more useful diagnostic than
 	 * just "mismatch".
@@ -493,7 +630,7 @@ int write_and_verify(struct ctl_data *ctl,
  * Make sure we can write the default value back to the control, this
  * should validate that at least some write works.
  */
-void test_ctl_write_default(struct ctl_data *ctl)
+static void test_ctl_write_default(struct ctl_data *ctl)
 {
 	int err;
 
@@ -526,7 +663,7 @@ void test_ctl_write_default(struct ctl_data *ctl)
 			 ctl->card->card, ctl->elem);
 }
 
-bool test_ctl_write_valid_boolean(struct ctl_data *ctl)
+static bool test_ctl_write_valid_boolean(struct ctl_data *ctl)
 {
 	int err, i, j;
 	bool fail = false;
@@ -547,7 +684,7 @@ bool test_ctl_write_valid_boolean(struct ctl_data *ctl)
 	return !fail;
 }
 
-bool test_ctl_write_valid_integer(struct ctl_data *ctl)
+static bool test_ctl_write_valid_integer(struct ctl_data *ctl)
 {
 	int err;
 	int i;
@@ -577,7 +714,7 @@ bool test_ctl_write_valid_integer(struct ctl_data *ctl)
 	return !fail;
 }
 
-bool test_ctl_write_valid_integer64(struct ctl_data *ctl)
+static bool test_ctl_write_valid_integer64(struct ctl_data *ctl)
 {
 	int err, i;
 	long long j, step;
@@ -605,7 +742,7 @@ bool test_ctl_write_valid_integer64(struct ctl_data *ctl)
 	return !fail;
 }
 
-bool test_ctl_write_valid_enumerated(struct ctl_data *ctl)
+static bool test_ctl_write_valid_enumerated(struct ctl_data *ctl)
 {
 	int err, i, j;
 	bool fail = false;
@@ -626,7 +763,7 @@ bool test_ctl_write_valid_enumerated(struct ctl_data *ctl)
 	return !fail;
 }
 
-void test_ctl_write_valid(struct ctl_data *ctl)
+static void test_ctl_write_valid(struct ctl_data *ctl)
 {
 	bool pass;
 	int err;
@@ -679,6 +816,236 @@ void test_ctl_write_valid(struct ctl_data *ctl)
 			 ctl->card->card, ctl->elem);
 }
 
+static bool test_ctl_write_invalid_value(struct ctl_data *ctl,
+					 snd_ctl_elem_value_t *val)
+{
+	int err;
+	long val_read;
+
+	/* Ideally this will fail... */
+	err = snd_ctl_elem_write(ctl->card->handle, val);
+	if (err < 0)
+		return false;
+
+	/* ...but some devices will clamp to an in range value */
+	err = snd_ctl_elem_read(ctl->card->handle, val);
+	if (err < 0) {
+		ksft_print_msg("%s failed to read: %s\n",
+			       ctl->name, snd_strerror(err));
+		return true;
+	}
+
+	return !ctl_value_valid(ctl, val);
+}
+
+static bool test_ctl_write_invalid_boolean(struct ctl_data *ctl)
+{
+	int err, i;
+	long val_read;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_boolean(val, i, 2);
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_integer(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		if (snd_ctl_elem_info_get_min(ctl->info) != LONG_MIN) {
+			/* Just under range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i,
+			       snd_ctl_elem_info_get_min(ctl->info) - 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Minimum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i, LONG_MIN);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+
+		if (snd_ctl_elem_info_get_max(ctl->info) != LONG_MAX) {
+			/* Just over range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i,
+			       snd_ctl_elem_info_get_max(ctl->info) + 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Maximum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i, LONG_MAX);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_integer64(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		if (snd_ctl_elem_info_get_min64(ctl->info) != LLONG_MIN) {
+			/* Just under range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i,
+				snd_ctl_elem_info_get_min64(ctl->info) - 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Minimum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i, LLONG_MIN);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+
+		if (snd_ctl_elem_info_get_max64(ctl->info) != LLONG_MAX) {
+			/* Just over range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i,
+				snd_ctl_elem_info_get_max64(ctl->info) + 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Maximum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i, LLONG_MAX);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_enumerated(struct ctl_data *ctl)
+{
+	int err, i;
+	unsigned int val_read;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		/* One beyond maximum */
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_enumerated(val, i,
+				  snd_ctl_elem_info_get_items(ctl->info));
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+
+		/* Maximum representable value */
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_enumerated(val, i, UINT_MAX);
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+
+	}
+
+	return !fail;
+}
+
+
+static void test_ctl_write_invalid(struct ctl_data *ctl)
+{
+	bool pass;
+	int err;
+
+	/* If the control is turned off let's be polite */
+	if (snd_ctl_elem_info_is_inactive(ctl->info)) {
+		ksft_print_msg("%s is inactive\n", ctl->name);
+		ksft_test_result_skip("write_invalid.%d.%d\n",
+				      ctl->card->card, ctl->elem);
+		return;
+	}
+
+	if (!snd_ctl_elem_info_is_writable(ctl->info)) {
+		ksft_print_msg("%s is not writeable\n", ctl->name);
+		ksft_test_result_skip("write_invalid.%d.%d\n",
+				      ctl->card->card, ctl->elem);
+		return;
+	}
+
+	switch (snd_ctl_elem_info_get_type(ctl->info)) {
+	case SND_CTL_ELEM_TYPE_BOOLEAN:
+		pass = test_ctl_write_invalid_boolean(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER:
+		pass = test_ctl_write_invalid_integer(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER64:
+		pass = test_ctl_write_invalid_integer64(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_ENUMERATED:
+		pass = test_ctl_write_invalid_enumerated(ctl);
+		break;
+
+	default:
+		/* No tests for this yet */
+		ksft_test_result_skip("write_invalid.%d.%d\n",
+				      ctl->card->card, ctl->elem);
+		return;
+	}
+
+	/* Restore the default value to minimise disruption */
+	err = write_and_verify(ctl, ctl->def_val, NULL);
+	if (err < 0)
+		pass = false;
+
+	ksft_test_result(pass, "write_invalid.%d.%d\n",
+			 ctl->card->card, ctl->elem);
+}
+
+static void test_ctl_event_missing(struct ctl_data *ctl)
+{
+	ksft_test_result(!ctl->event_missing, "event_missing.%d.%d\n",
+			 ctl->card->card, ctl->elem);
+}
+
+static void test_ctl_event_spurious(struct ctl_data *ctl)
+{
+	ksft_test_result(!ctl->event_spurious, "event_spurious.%d.%d\n",
+			 ctl->card->card, ctl->elem);
+}
+
 int main(void)
 {
 	struct ctl_data *ctl;
@@ -697,6 +1064,9 @@ int main(void)
 		test_ctl_get_value(ctl);
 		test_ctl_write_default(ctl);
 		test_ctl_write_valid(ctl);
+		test_ctl_write_invalid(ctl);
+		test_ctl_event_missing(ctl);
+		test_ctl_event_spurious(ctl);
 	}
 
 	ksft_exit_pass();