From mboxrd@z Thu Jan  1 00:00:00 1970
From: nicolas.ferre@atmel.com (Nicolas Ferre)
Date: Tue, 8 Mar 2016 16:44:23 +0100
Subject: [PATCH 8/8] drm: atmel-hlcdc: check display mode validity in
 crtc->mode_fixup()
In-Reply-To: <1452075569-8545-9-git-send-email-boris.brezillon@free-electrons.com>
References: <1452075569-8545-1-git-send-email-boris.brezillon@free-electrons.com>
 <1452075569-8545-9-git-send-email-boris.brezillon@free-electrons.com>
Message-ID: <56DEF357.5050003@atmel.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Le 06/01/2016 11:19, Boris Brezillon a ?crit :
> Move the adjusted display mode check into ->mode_fixup().
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

Seems okay:
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>


> ---
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 10 ++++------
>  1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> index be30bd2..d5a028f 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> @@ -142,11 +142,13 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c)
>  			   cfg);
>  }
>  
> -static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *crtc,
> +static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *c,
>  					const struct drm_display_mode *mode,
>  					struct drm_display_mode *adjusted_mode)
>  {
> -	return true;
> +	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
> +
> +	return atmel_hlcdc_dc_mode_valid(crtc->dc, adjusted_mode) == MODE_OK;
>  }
>  
>  static void atmel_hlcdc_crtc_disable(struct drm_crtc *c)
> @@ -311,12 +313,8 @@ static int atmel_hlcdc_crtc_select_output_mode(struct drm_crtc_state *state)
>  static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
>  					 struct drm_crtc_state *s)
>  {
> -	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
>  	int ret;
>  
> -	if (atmel_hlcdc_dc_mode_valid(crtc->dc, &s->adjusted_mode) != MODE_OK)
> -		return -EINVAL;
> -
>  	ret = atmel_hlcdc_crtc_select_output_mode(s);
>  	if (ret)
>  		return ret;
> 


-- 
Nicolas Ferre