Re: [PATCH v4 08/13] drm/amd/display: Register Colorspace property for DP and HDMI

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On Friday, May 26th, 2023 at 18:40, Sebastian Wick <sebastian.wick@xxxxxxxxxx> wrote:

> On Thu, May 25, 2023 at 9:18 PM Harry Wentland harry.wentland@xxxxxxx wrote:
> 
> > We want compositors to be able to set the output
> > colorspace on DP and HDMI outputs, based on the
> > caps reported from the receiver via EDID.
> 
> 
> This commit message seems wrong for multiple reasons. The Colorspace
> property documentation explicitly says that user space has to check
> the sink EDID for support:
> 
> > The expectation from userspace is that it should parse the EDID and get supported colorspaces.
> 
> The code doesn't seem to care about EDID at all. Instead it exposes
> the variants it knows how to support with e.g. the appropriate YCC
> transform when necessary, independent of the sink support.

The commit messages explains that compositors will parse the EDID.
It doesn't state that the kernel does.




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