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-rw-r--r--drivers/acpi/internal.h3
-rw-r--r--drivers/acpi/power.c2
-rw-r--r--drivers/acpi/scan.c78
-rw-r--r--drivers/acpi/video_detect.c7
4 files changed, 65 insertions, 25 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e3638bafb941..cb229e24c563 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -105,7 +105,8 @@ struct acpi_device_bus_id {
int acpi_device_add(struct acpi_device *device,
void (*release)(struct device *));
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
- int type, unsigned long long sta);
+ int type, unsigned long long sta,
+ struct acpi_device_info *info);
int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 8048da85b7e0..189a0d4c6d06 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -939,7 +939,7 @@ int acpi_add_power_resource(acpi_handle handle)
device = &resource->device;
acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
- ACPI_STA_DEFAULT);
+ ACPI_STA_DEFAULT, NULL);
mutex_init(&resource->resource_lock);
INIT_LIST_HEAD(&resource->list_node);
INIT_LIST_HEAD(&resource->dependents);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bc6a79e33220..37317e0ed65d 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -51,8 +51,8 @@ static u64 spcr_uart_addr;
struct acpi_dep_data {
struct list_head node;
- acpi_handle master;
- acpi_handle slave;
+ acpi_handle supplier;
+ acpi_handle consumer;
};
void acpi_scan_lock_acquire(void)
@@ -719,6 +719,42 @@ int acpi_device_add(struct acpi_device *device,
/* --------------------------------------------------------------------------
Device Enumeration
-------------------------------------------------------------------------- */
+static bool acpi_info_matches_ids(struct acpi_device_info *info,
+ const char * const ids[])
+{
+ struct acpi_pnp_device_id_list *cid_list = NULL;
+ int i;
+
+ if (!(info->valid & ACPI_VALID_HID))
+ return false;
+
+ if (info->valid & ACPI_VALID_CID)
+ cid_list = &info->compatible_id_list;
+
+ for (i = 0; ids[i]; i++) {
+ int j;
+
+ if (!strcmp(info->hardware_id.string, ids[i]))
+ return true;
+
+ if (!cid_list)
+ continue;
+
+ for (j = 0; j < cid_list->count; j++) {
+ if (!strcmp(cid_list->ids[j].string, ids[i]))
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/* List of HIDs for which we ignore matching ACPI devices, when checking _DEP lists. */
+static const char * const acpi_ignore_dep_ids[] = {
+ "PNP0D80", /* Windows-compatible System Power Management Controller */
+ NULL
+};
+
static struct acpi_device *acpi_bus_get_parent(acpi_handle handle)
{
struct acpi_device *device = NULL;
@@ -1236,10 +1272,8 @@ static bool acpi_object_is_system_bus(acpi_handle handle)
}
static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
- int device_type)
+ int device_type, struct acpi_device_info *info)
{
- acpi_status status;
- struct acpi_device_info *info;
struct acpi_pnp_device_id_list *cid_list;
int i;
@@ -1250,8 +1284,7 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
break;
}
- status = acpi_get_object_info(handle, &info);
- if (ACPI_FAILURE(status)) {
+ if (!info) {
pr_err(PREFIX "%s: Error reading device info\n",
__func__);
return;
@@ -1276,8 +1309,6 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
if (info->valid & ACPI_VALID_CLS)
acpi_add_id(pnp, info->class_code.string);
- kfree(info);
-
/*
* Some devices don't reliably have _HIDs & _CIDs, so add
* synthetic HIDs to make sure drivers can find them.
@@ -1583,7 +1614,8 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
}
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
- int type, unsigned long long sta)
+ int type, unsigned long long sta,
+ struct acpi_device_info *info)
{
INIT_LIST_HEAD(&device->pnp.ids);
device->device_type = type;
@@ -1592,7 +1624,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
device->fwnode.ops = &acpi_device_fwnode_ops;
acpi_set_device_status(device, sta);
acpi_device_get_busid(device);
- acpi_set_pnp_ids(handle, &device->pnp, type);
+ acpi_set_pnp_ids(handle, &device->pnp, type, info);
acpi_init_properties(device);
acpi_bus_get_flags(device);
device->flags.match_driver = false;
@@ -1620,14 +1652,20 @@ static int acpi_add_single_object(struct acpi_device **child,
int result;
struct acpi_device *device;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_device_info *info = NULL;
+
+ if (handle != ACPI_ROOT_OBJECT && type == ACPI_BUS_TYPE_DEVICE)
+ acpi_get_object_info(handle, &info);
device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
if (!device) {
printk(KERN_ERR PREFIX "Memory allocation error\n");
+ kfree(info);
return -ENOMEM;
}
- acpi_init_device_object(device, handle, type, sta);
+ acpi_init_device_object(device, handle, type, sta, info);
+ kfree(info);
/*
* For ACPI_BUS_TYPE_DEVICE getting the status is delayed till here so
* that we can call acpi_bus_get_status() and use its quirk handling.
@@ -1833,13 +1871,7 @@ static void acpi_device_dep_initialize(struct acpi_device *adev)
continue;
}
- /*
- * Skip the dependency of Windows System Power
- * Management Controller
- */
- skip = info->valid & ACPI_VALID_HID &&
- !strcmp(info->hardware_id.string, "INT3396");
-
+ skip = acpi_info_matches_ids(info, acpi_ignore_dep_ids);
kfree(info);
if (skip)
@@ -1849,8 +1881,8 @@ static void acpi_device_dep_initialize(struct acpi_device *adev)
if (!dep)
return;
- dep->master = dep_devices.handles[i];
- dep->slave = adev->handle;
+ dep->supplier = dep_devices.handles[i];
+ dep->consumer = adev->handle;
adev->dep_unmet++;
mutex_lock(&acpi_dep_list_lock);
@@ -2026,8 +2058,8 @@ void acpi_walk_dep_device_list(acpi_handle handle)
mutex_lock(&acpi_dep_list_lock);
list_for_each_entry_safe(dep, tmp, &acpi_dep_list, node) {
- if (dep->master == handle) {
- acpi_bus_get_device(dep->slave, &adev);
+ if (dep->supplier == handle) {
+ acpi_bus_get_device(dep->consumer, &adev);
if (!adev)
continue;
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 4f5463b2a217..811d298637cb 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -140,6 +140,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_vendor,
+ .ident = "GIGABYTE GB-BXBT-2807",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"),
+ },
+ },
+ {
.ident = "Sony VPCEH3U1E",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),