[RFC v2 0/5] Common Display Framework

[Laurent Pinchart]

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.

-- 
Regards,

Laurent Pinchart