On Wednesday, December 31, 2014 12:50 PM, Aaron Lu wrote:
>
> 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@xxxxxxxxx>
Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
Best regards,
Jingoo Han
> ---
> drivers/acpi/video.c | 2 +-
> drivers/video/backlight/backlight.c | 6 ------
> include/linux/backlight.h | 1 -
> 3 files changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
> index 1eaadff2e198..98d3f0de811e 100644
> --- a/drivers/acpi/video.c
> +++ b/drivers/acpi/video.c
> @@ -246,7 +246,7 @@ static bool acpi_video_use_native_backlight(void)
> bool acpi_video_verify_backlight_support(void)
> {
> if (acpi_osi_is_win8() && acpi_video_use_native_backlight() &&
> - backlight_device_registered(BACKLIGHT_RAW))
> + backlight_device_get_by_type(BACKLIGHT_RAW))
> return false;
> return acpi_video_backlight_support();
> }
> diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
> index bea749329236..aec173d9e1ee 100644
> --- a/drivers/video/backlight/backlight.c
> +++ b/drivers/video/backlight/backlight.c
> @@ -406,12 +406,6 @@ 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.
> diff --git a/include/linux/backlight.h b/include/linux/backlight.h
> index c59a020df3f8..287a4460054c 100644
> --- a/include/linux/backlight.h
> +++ b/include/linux/backlight.h
> @@ -137,7 +137,6 @@ 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);
> --
> 2.1.0
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