On Tue, Aug 25, 2015 at 10:03:52PM +0800, Yakir Yang wrote:
> Hi Thierry,
> 
> 在 2015/8/25 17:58, Thierry Reding 写道:
> >On Wed, Aug 19, 2015 at 09:50:34AM -0500, Yakir Yang wrote:
> >[...]
> >>+   -analogix,color-space:
> >>+           input video data format.
> >>+                   COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
> >I don't think DT is an appropriate place to set this. To my knowledge
> >this depends on the display and/or mode, so I don't think hard-coding
> >it here is the right thing to do.
> 
> Yeah, same question with my previous reply ;)

I don't have an answer for you, unfortunately. But like I said,
hard-coding isn't going to work. What if, for example, you set this to a
fixed value and then you connect a monitor that doesn't support the
specific one you set?

You cited code from dw_hdmi.c earlier, it looks like it might be correct
even though it doesn't cite a reference for why this was done. Perhaps
someone on this thread, or someone involved with dw_hdmi can answer
where that code came from.

Thierry

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