linux-kernel - Re: [PATCH v8 11/11] media: imx.rst: Update doc to reflect fixes to interlaced capture

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Message-ID: <6e60489c-cafc-ff6d-9aa0-cd0f327967a8@gmail.com>
Date:   Tue, 15 Jan 2019 15:59:18 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Tim Harvey <tharvey@...eworks.com>
Cc:     linux-media <linux-media@...r.kernel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v8 11/11] media: imx.rst: Update doc to reflect fixes to
 interlaced capture



On 1/15/19 3:54 PM, Steve Longerbeam wrote:
>
>>
>>
>> media-ctl -V "'ipu1_csi0':0 [fmt:AYUV32/720x480]"
>
> This is the reason. The adv7180 is only allowing to configure 
> alternate field mode, and thus it reports the field height on the 
> mbus, not the full frame height. Imx deals with alternate field mode 
> by capturing a full frame, so the CSI entity sets the output pad 
> height to double the height.

gah,

"... so the CSI entity sets the output pad height to double the _input 
pad_ height."

Steve