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

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Date:   Thu, 15 Jun 2017 10:45:10 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Minghsiu Tsai <minghsiu.tsai@...iatek.com>,
        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

On 06/15/17 08:29, Minghsiu Tsai wrote:
> Hi, Hans,
> 
> Would you have time to review this patch v2?
> The patch v1 violates v4l2 spec. I have fixed it in v2.

I plan to review it Friday or Monday.

Regards,

	Hans

> 
> 
> 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;
> 
>