[PATCH 2/2] drm: vc4: enable XBGR8888 and ABGR8888 pixel formats

[Eric Anholt]

Rob Herring <robh at kernel.org> writes:

> DRM_FORMAT_XBGR8888 and DRM_FORMAT_ABGR8888 are 2 of the native formats
> used in Android, so enable them for VC4. There seems to be no logic behind
> HVS_PIXEL_ORDER_xxxx naming, but HVS_PIXEL_ORDER_ARGB seems to work
> correctly.

Spent a little bit digging into how the pixel orderings work and didn't
come up with an answer.  I'll try to look into this one again later.
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