Re: [PATCH RESEND 4/4] backlight: tosa: Use backlight helper

[Sam Ravnborg]

On Fri, Jan 06, 2023 at 05:48:55PM +0100, Stephen Kitt wrote:
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
> 
> Signed-off-by: Stephen Kitt <steve@xxxxxxx>
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
>  drivers/video/backlight/tosa_bl.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
> index 77b71f6c19b5..e338b1f00f6a 100644
> --- a/drivers/video/backlight/tosa_bl.c
> +++ b/drivers/video/backlight/tosa_bl.c
> @@ -50,13 +50,8 @@ static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
>  
>  static int tosa_bl_update_status(struct backlight_device *dev)
>  {
> -	struct backlight_properties *props = &dev->props;
>  	struct tosa_bl_data *data = bl_get_data(dev);
> -	int power = max(props->power, props->fb_blank);
> -	int brightness = props->brightness;
> -
> -	if (power)
> -		brightness = 0;
> +	int brightness = backlight_get_brightness(dev);
>  
>  	tosa_bl_set_backlight(data, brightness);
>  
> -- 
> 2.30.2