[Intel-gfx] Deep color support and bug fixes

[Chris Wilson]

On Wed, 11 May 2011 10:48:01 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> A couple of bug fixes, and some patches to support deep color on Intel
> chipsets.

My main concern with extended fb->depth support is in validation that the
crtc+encoder supports the requested fb, and that we have sufficient
logging of the bpc (inc fb->depth/fb->bpp) changes during modeswitch.
There are some restrictions that you add in mode_set() that need to be
raised to intel_framebuffer_init() so that the error is detected early.
But we should also be checking the requested fb->depth is valid during
preparation, and error early.