linux-kernel - Re: [PATCH 5/6] drm/rockchip: vop: report error when check resource error

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Date:   Fri, 4 Aug 2017 08:57:12 +0800
From:   Sandy Huang <sandy.huang@...k-chips.com>
To:     Mark Yao <mark.yao@...k-chips.com>,
        David Airlie <airlied@...ux.ie>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/6] drm/rockchip: vop: report error when check resource
 error

Hi mark,

在 2017/7/31 17:49, Mark Yao 写道:
> The user would be confused while facing a error commit without
> any error report.
> 
> Signed-off-by: Mark Yao <mark.yao@...k-chips.com>
> ---
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index fa0d9f7..999c2e0 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -674,8 +674,10 @@ static int vop_plane_atomic_check(struct drm_plane *plane,
>   	 * Src.x1 can be odd when do clip, but yuv plane start point
>   	 * need align with 2 pixel.
>   	 */
> -	if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2))
> +	if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2)) {
> +		DRM_ERROR("Invalid Source: Yuv format not support odd xpos\n");
>   		return -EINVAL;
> +	}
>   
>   	return 0;
>   }
> 

Reviewed-by: Sandy huang <sandy.huang@...k-chips.com>