Re: [RFC v2 0/5] Common Display Framework

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On Fri, Feb 1, 2013 at 5:42 PM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> Hi Rahul,
>
> On Wednesday 09 January 2013 13:53:30 Rahul Sharma wrote:
>> Hi Laurent,
>>
>> CDF will also be helpful in supporting Panels with integrated audio
>> (HDMI/DP) if we can add audio related control operations to
>> display_entity_control_ops. Video controls will be called by crtc in DRM/V4L
>> and audio controls from Alsa.
>
> I knew that would come up at some point :-) I agree with you that adding audio
> support would be a very nice improvement, and I'm totally open to that, but I
> will concentrate on video, at least to start with. The first reason is that
> I'm not familiar enough with ALSA, and the second that there's only 24h per
> day :-)
>
> Please feel free, of course, to submit a proposal for audio support.
>
>> Secondly, if I need to support get_modes operation in hdmi/dp panel, I need
>> to implement edid parser inside the panel driver. It will be meaningful to
>> add get_edid control operation for hdmi/dp.
>
> Even if EDID data is parsed in the panel driver, raw EDID will still need to
> be exported, so a get_edid control operation (or something similar) is
> definitely needed. There's no disagreement on this, I just haven't included
> that operation yet because my test hardware is purely panel-based.

one of (probably many) places that just keeping CDF (CDH? common
display helpers..) inside DRM makes life easier :-P

BR,
-R

> --
> Regards,
>
> Laurent Pinchart
>
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