linux-kernel - Re: [PATCH 0/2] drm: dw-hdmi: various improvements

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Date:   Mon, 10 Apr 2017 12:35:43 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Archit Taneja <architt@...eaurora.org>
Cc:     Romain Perier <romain.perier@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/2] drm: dw-hdmi: various improvements

On 04/10/2017 12:08 PM, Russell King - ARM Linux wrote:
> On Mon, Apr 10, 2017 at 10:49:18AM +0530, Archit Taneja wrote:
>> Hi,
>>
>> On 04/07/2017 07:49 PM, Romain Perier wrote:
>>> This set of patches split the stream handling functions in two parts. It
>>> introduces new callbacks that are specific to each variant, one for I2S
>>> and one for AHB.
>>>
>>> Then, as requested by the datasheet for the I2S variant, it adds support
>>> for gating the audio sampler clock when the audio stream is enabled and
>>> disabled.
>>>
>>> This patches series is the continuity of the following discussion:
>>> http://lists.infradead.org/pipermail/linux-arm-kernel/2017-March/493550.html
>>
>> Since these aren't fixes, could you make sure to redo the patches over:
>>
>> git://anongit.freedesktop.org/drm-misc drm-misc-next
>>
>> The dw-hdmi driver is now under drivers/gpu/drm/bridge/synopsis/
> 
> This is annoying as it makes submission of CEC support for dw-hdmi
> rather difficult due to the now horrid cross-tree dependencies:
> 
> * if I submit it to the DRM tree, the DRM tree will build break because
>   you don't have the necessary CEC changes which have recently been
>   merged into the media tree.
> 
> * if I submit it to the media tree, the new files will be placed into
>   drivers/gpu/drm/bridge and when stuff gets merged into linux-next
>   and/or Linus' tree, things will need quite a large fixup (someone
>   will have to rename the files and fix the Kconfig/Makefiles.)
> 
> So, I'll hold it back for another cycle to avoid the mess that would
> result from trying to get it merged during this cycle.
> 

Hi Russell,

Cross tree with media has already been done on this cycle with the
dw-hdmi formats changes.

Nevertheless, please push your updated dw-hdmi cec patchset for tests
and review based on the latest drm-misc-next and hverkuil's HPD notifier
release.

I would like to run it on some Amlogic boards.

Neil