linux-kernel - Re: Aw: Re: [PATCH v5 3/7] drm/mediatek: disable tmds on mt2701

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Message-ID: <4c929eb9-23da-3797-12e7-ffd2a9a14048@gmail.com>
Date:   Fri, 28 Aug 2020 19:45:58 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Frank Wunderlich <linux@...web.de>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        chunhui dai <chunhui.dai@...iatek.com>
Subject: Re: Aw: Re: [PATCH v5 3/7] drm/mediatek: disable tmds on mt2701



On 28/08/2020 01:46, Chun-Kuang Hu wrote:
> Hi, Frank:
> 
> Matthias Brugger <matthias.bgg@...il.com> 於 2020年8月27日 週四 下午10:28寫道：
>>
>>
>>
>> On 27/08/2020 15:41, Frank Wunderlich wrote:
>>> Hi Matthias,
>>>
>>> any opinions about the dts-changes?
>>>
>>
>> they look good to me.
>>
>>> maybe series except the tmds-Patch get merged...so i add it only to my own repo till we find a better way?
>>> currently mainline does not support hdmi at all for the board. the tmds-patch is only a fix for specific resolutions which have a "flickering" without this Patch.
>>>
>>
>> Well let's see what CK's opinion.
>>
> 
> Because no one has comment on this patch, I could apply this patch but
> I need you to add more experiment information so if someone meets
> another bug, he could fix his bug and consider your problem.
> 

I'm adding Chunhui Dai as he got dropped in the discussion.

Chunhui can you as the first patch author provide some more technical background 
why the distortion happens and why this patch fixes it?

Thanks a lot,
Matthias