linux-kernel - Re: [PATCH v2] [media] mtk-mdp: Fix g_/s

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Message-ID: <1497508166.3384.5.camel@mtksdaap41>
Date:   Thu, 15 Jun 2017 14:29:26 +0800
From:   Minghsiu Tsai <minghsiu.tsai@...iatek.com>
To:     Hans Verkuil <hans.verkuil@...co.com>
CC:     <daniel.thompson@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        "Mauro Carvalho Chehab" <mchehab@....samsung.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Pawel Osciak <posciak@...omium.org>,
        Houlong Wei <houlong.wei@...iatek.com>,
        <srv_heupstream@...iatek.com>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        Wu-Cheng Li <wuchengli@...gle.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-media@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v2] [media] mtk-mdp: Fix g_/s_selection capture/compose
 logic

Hi, Hans,

Would you have time to review this patch v2?
The patch v1 violates v4l2 spec. I have fixed it in v2.


Sincerely,
Ming Hsiu

On Fri, 2017-05-12 at 10:42 +0800, Minghsiu Tsai wrote:
> From: Daniel Kurtz <djkurtz@...omium.org>
> 
> Experiments show that the:
>  (1) mtk-mdp uses the _MPLANE form of CAPTURE/OUTPUT
>  (2) CAPTURE types use CROP targets, and OUTPUT types use COMPOSE targets
> 
> Signed-off-by: Daniel Kurtz <djkurtz@...omium.org>
> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@...iatek.com>
> Signed-off-by: Houlong Wei <houlong.wei@...iatek.com>
> 
> ---
> Changes in v2:
> . Can not use *_MPLANE type in g_/s_selection 
> ---
>  drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
> index 13afe48..e18ac626 100644
> --- a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
> +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
> @@ -838,10 +838,10 @@ static int mtk_mdp_m2m_g_selection(struct file *file, void *fh,
>  	bool valid = false;
>  
>  	if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
> -		if (mtk_mdp_is_target_compose(s->target))
> +		if (mtk_mdp_is_target_crop(s->target))
>  			valid = true;
>  	} else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
> -		if (mtk_mdp_is_target_crop(s->target))
> +		if (mtk_mdp_is_target_compose(s->target))
>  			valid = true;
>  	}
>  	if (!valid) {
> @@ -908,10 +908,10 @@ static int mtk_mdp_m2m_s_selection(struct file *file, void *fh,
>  	bool valid = false;
>  
>  	if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
> -		if (s->target == V4L2_SEL_TGT_COMPOSE)
> +		if (s->target == V4L2_SEL_TGT_CROP)
>  			valid = true;
>  	} else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
> -		if (s->target == V4L2_SEL_TGT_CROP)
> +		if (s->target == V4L2_SEL_TGT_COMPOSE)
>  			valid = true;
>  	}
>  	if (!valid) {
> @@ -925,7 +925,7 @@ static int mtk_mdp_m2m_s_selection(struct file *file, void *fh,
>  	if (ret)
>  		return ret;
>  
> -	if (mtk_mdp_is_target_crop(s->target))
> +	if (mtk_mdp_is_target_compose(s->target))
>  		frame = &ctx->s_frame;
>  	else
>  		frame = &ctx->d_frame;