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authorSinan Kaya <okaya@codeaurora.org>2017-12-13 02:20:48 -0500
committerVinod Koul <vinod.koul@intel.com>2017-12-13 14:10:57 +0530
commit80212a162329e590fde02d8457af16ea0ab0a55f (patch)
tree054a70992f391a682093d1234f35b7b0a9994685 /drivers/acpi/bus.c
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff)
ACPI / bus: Introduce acpi_get_match_data() function
OF has of_device_get_match_data() function to extract driver specific data structure. Add a similar function for ACPI. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 4d0979e02a28..f87ed3be779a 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -785,6 +785,24 @@ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
}
EXPORT_SYMBOL_GPL(acpi_match_device);
+void *acpi_get_match_data(const struct device *dev)
+{
+ const struct acpi_device_id *match;
+
+ if (!dev->driver)
+ return NULL;
+
+ if (!dev->driver->acpi_match_table)
+ return NULL;
+
+ match = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!match)
+ return NULL;
+
+ return (void *)match->driver_data;
+}
+EXPORT_SYMBOL_GPL(acpi_get_match_data);
+
int acpi_match_device_ids(struct acpi_device *device,
const struct acpi_device_id *ids)
{