Re: [PATCH 02/10] auxdisplay/ht16k33: Remove struct backlight_ops.check_fb

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On Mon, 12 Feb 2024 17:16:35 +0100
Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:

> The driver sets struct fb_info.bl_dev to the correct backlight
> device. Thus rely on the backlight core code to match backlight
> and framebuffer devices, and remove the extra check_fb function
> from struct backlight_ops.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Cc: Robin van der Gracht <robin@xxxxxxxxxxx>
> ---
>  drivers/auxdisplay/ht16k33.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
> index a90430b7d07ba..0a858db32486b 100644
> --- a/drivers/auxdisplay/ht16k33.c
> +++ b/drivers/auxdisplay/ht16k33.c
> @@ -325,16 +325,8 @@ static int ht16k33_bl_update_status(struct backlight_device *bl)
>  	return ht16k33_brightness_set(priv, brightness);
>  }
>  
> -static int ht16k33_bl_check_fb(struct backlight_device *bl, struct fb_info *fi)
> -{
> -	struct ht16k33_priv *priv = bl_get_data(bl);
> -
> -	return (fi == NULL) || (fi->par == priv);
> -}
> -
>  static const struct backlight_ops ht16k33_bl_ops = {
>  	.update_status	= ht16k33_bl_update_status,
> -	.check_fb	= ht16k33_bl_check_fb,
>  };

When combined with the previous patch:
[01/10] backlight: Match backlight device against struct fb_info.bl_dev

(I wasn't in the CC)

Acked-By: Robin van der Gracht <robin@xxxxxxxxxxx>





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