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video / backlight: remove the backlight_device_registered API 

Since we will need the backlight_device_get_by_type API, we can use it
instead of the backlight_device_registered API whenever necessary so
remove the backlight_device_registered API.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Aaron Lu 2016-04-27 20:45:03 +08:00 committed by Rafael J. Wysocki
parent f6a4790a54
commit 01c3664de6
3 changed files with 1 additions and 8 deletions
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2
drivers/acpi/video_detect.c
View File

@ -358,7 +358,7 @@ enum acpi_backlight_type acpi_video_get_backlight_type(void)
if (!(video_caps & ACPI_VIDEO_BACKLIGHT))
return acpi_backlight_vendor;
if (acpi_osi_is_win8() && backlight_device_registered(BACKLIGHT_RAW))
if (acpi_osi_is_win8() && backlight_device_get_by_type(BACKLIGHT_RAW))
return acpi_backlight_native;
return acpi_backlight_video;

6
drivers/video/backlight/backlight.c
View File

@ -407,12 +407,6 @@ struct backlight_device *backlight_device_get_by_type(enum backlight_type type)
}
EXPORT_SYMBOL(backlight_device_get_by_type);
bool backlight_device_registered(enum backlight_type type)
{
return backlight_device_get_by_type(type) ? true : false;
}
EXPORT_SYMBOL(backlight_device_registered);
/**
* backlight_device_unregister - unregisters a backlight device object.
* @bd: the backlight device object to be unregistered and freed.

1
include/linux/backlight.h
View File

@ -141,7 +141,6 @@ extern void devm_backlight_device_unregister(struct device *dev,
struct backlight_device *bd);
extern void backlight_force_update(struct backlight_device *bd,
enum backlight_update_reason reason);
extern bool backlight_device_registered(enum backlight_type type);
extern int backlight_register_notifier(struct notifier_block *nb);
extern int backlight_unregister_notifier(struct notifier_block *nb);
extern struct backlight_device *backlight_device_get_by_type(enum backlight_type type);