linux-kernel - Re: [PATCH v2 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C bus bitbang for HDMI

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Message-ID: <7eb3df71-6d1a-006a-cc4c-83ff8df3c42c@mentor.com>
Date:   Thu, 10 Nov 2016 20:29:16 +0200
From:   Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
To:     Stefan Agner <stefan@...er.ch>,
        Philipp Zabel <p.zabel@...gutronix.de>
CC:     <maitysanchayan@...il.com>, Shawn Guo <shawnguo@...nel.org>,
        <marcel.ziswiler@...adex.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] ARM: dts: imx6qdl-apalis: Do not rely on DDC I2C
 bus bitbang for HDMI

Hi Stefan, Philipp,

On 11/09/2016 02:50 AM, Stefan Agner wrote:
> On 2016-11-08 09:33, maitysanchayan@...il.com wrote:
>> Hello Shawn,
>>
>> On 16-10-22 15:43:04, Vladimir Zapolskiy wrote:
>>> Hi Shawn,
>>>
>>> On 10/22/2016 06:25 AM, Shawn Guo wrote:
>>>> On Mon, Sep 19, 2016 at 10:41:51AM +0530, Sanchayan Maity wrote:
>>>>> Remove the use of DDC I2C bus bitbang to support reading of EDID
>>>>> and rely on support from internal HDMI I2C master controller instead.
>>>>> As a result remove the device tree property ddc-i2c-bus.
>>>>>
>>>>> Signed-off-by: Sanchayan Maity <maitysanchayan@...il.com>
>>>>
>>>> I think that the dw-hdmi i2c support [1] is a prerequisite of this
>>>> patch.  I do not see it lands on v4.9-rc1.  Or am I missing something?
>>>>
>>>> Shawn
>>>>
>>>> [1] https://patchwork.kernel.org/patch/9296883/
>>>>
>>>
>>> I'm adding Philipp to Cc, since he is the last one who tested the change
>>> and helped me to push the change to the mainline:
>>>
>>>   https://lists.freedesktop.org/archives/dri-devel/2016-September/118569.html
>>>
>>> The problem is that there is no official DW HDMI bridge maintainer, may be
>>> you can review the change, and if you find it satisfactory push it through
>>> ARM/iMX tree.
>>
>> Shawn, is it okay if that patch goes through your ARM/iMX tree?
>
> I don't think it makes sense that the DRM bridge changes go through
> Shawn's tree. Dave should merge Philipps pull request...
>

Philipp, do you mind to submit a rebased pull request one more time?

--
With best wishes,
Vladimir