linux-kernel - Re: [PATCH 33/33] backlight: simplify lcd notifier

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Date:   Tue, 11 Jun 2019 15:11:25 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Daniel Vetter <daniel.vetter@...ll.ch>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
        linux-fbdev@...r.kernel.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>
Subject: Re: [PATCH 33/33] backlight: simplify lcd notifier

On Tue, May 28, 2019 at 11:03:04AM +0200, Daniel Vetter wrote:
> With all the work I've done on replacing fb notifier calls with direct
> calls into fbcon the backlight/lcd notifier is the only user left.
> 
> It will only receive events now that it cares about, hence we can
> remove this check.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@...el.com>
> Reviewed-by: Sam Ravnborg <sam@...nborg.org>
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Daniel Thompson <daniel.thompson@...aro.org>
> Cc: Jingoo Han <jingoohan1@...il.com>

Acked-by: Daniel Thompson <daniel.thompson@...aro.org>


> ---
>  drivers/video/backlight/lcd.c | 11 -----------
>  1 file changed, 11 deletions(-)
> 
> diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
> index ecdda06989d0..d6b653aa4ee9 100644
> --- a/drivers/video/backlight/lcd.c
> +++ b/drivers/video/backlight/lcd.c
> @@ -30,17 +30,6 @@ static int fb_notifier_callback(struct notifier_block *self,
>  	struct lcd_device *ld;
>  	struct fb_event *evdata = data;
>  
> -	/* If we aren't interested in this event, skip it immediately ... */
> -	switch (event) {
> -	case FB_EVENT_BLANK:
> -	case FB_EVENT_MODE_CHANGE:
> -	case FB_EARLY_EVENT_BLANK:
> -	case FB_R_EARLY_EVENT_BLANK:
> -		break;
> -	default:
> -		return 0;
> -	}
> -
>  	ld = container_of(self, struct lcd_device, fb_notif);
>  	if (!ld->ops)
>  		return 0;
> -- 
> 2.20.1
>