Messages in this thread Patch in this message | | | From | Sinan Kaya <> | Subject | [PATCH V5 2/7] ACPI / bus: Introduce acpi_get_match_data() function | Date | Fri, 1 Dec 2017 23:27:39 -0500 |
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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> --- drivers/acpi/bus.c | 13 +++++++++++++ include/linux/acpi.h | 8 ++++++++ 2 files changed, 21 insertions(+)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 4d0979e..05d8d9a 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -785,6 +785,19 @@ 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(struct acpi_device *device, + const struct acpi_device_id *ids) +{ + const struct acpi_device_id *match; + + match = __acpi_match_device(device, ids, NULL); + 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) { diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 502af53..196bc7a 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -584,6 +584,8 @@ 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(struct acpi_device *device, + const struct acpi_device_id *ids); 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 +757,12 @@ static inline const struct acpi_device_id *acpi_match_device( return NULL; } +static inline void *acpi_get_match_data(struct acpi_device *device, + const struct acpi_device_id *ids) +{ + return NULL; +} + static inline bool acpi_driver_match_device(struct device *dev, const struct device_driver *drv) { -- 1.9.1
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