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Commit 80212a16 authored by Sinan Kaya's avatar Sinan Kaya Committed by Vinod Koul
Browse files

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: default avatarSinan Kaya <okaya@codeaurora.org>
Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 4fbd8d19

drivers/acpi/bus.c

+18 −0
Original line number Diff line number Diff line
@@ -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)

{

include/linux/acpi.h

+6 −0
Original line number Diff line number Diff line
@@ -584,6 +584,7 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,

					       const struct device *dev);



void *acpi_get_match_data(const struct device *dev);

extern bool acpi_driver_match_device(struct device *dev,

				     const struct device_driver *drv);

int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
@@ -755,6 +756,11 @@ static inline const struct acpi_device_id *acpi_match_device( 
	return NULL;

}



static inline void *acpi_get_match_data(const struct device *dev)

{

	return NULL;

}



static inline bool acpi_driver_match_device(struct device *dev,

					    const struct device_driver *drv)

{