Add documentation for the inline functions in backlight.h
v2: - Fix spelling (Daniel)
Signed-off-by: Sam Ravnborg sam@ravnborg.org Reviewed-by: Daniel Thompson daniel.thompson@linaro.org Reviewed-by: Emil Velikov emil.l.velikov@gmail.com Cc: Lee Jones lee.jones@linaro.org Cc: Daniel Thompson daniel.thompson@linaro.org Cc: Jingoo Han jingoohan1@gmail.com --- include/linux/backlight.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/include/linux/backlight.h b/include/linux/backlight.h index 7654fe5f1589..7d6cb61e10f5 100644 --- a/include/linux/backlight.h +++ b/include/linux/backlight.h @@ -268,6 +268,10 @@ struct backlight_device { int use_count; };
+/** + * backlight_update_status - force an update of the backlight device status + * @bd: the backlight device + */ static inline int backlight_update_status(struct backlight_device *bd) { int ret = -ENOENT; @@ -361,6 +365,18 @@ extern int backlight_device_set_brightness(struct backlight_device *bd, unsigned
#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
+/** + * bl_get_data - access devdata + * @bl_dev: pointer to backlight device + * + * When a backlight device is registered the driver has the possibility + * to supply a void * devdata. bl_get_data() return a pointer to the + * devdata. + * + * RETURNS: + * + * pointer to devdata stored while registering the backlight device. + */ static inline void * bl_get_data(struct backlight_device *bl_dev) { return dev_get_drvdata(&bl_dev->dev);