drm/i915: fixup fb bpp computation in pipe_config_set_bpp

Browse source

Ville pointed out that my assumption that no unsupported pixel format
can get past the pipe config computation stage to the platform
update_plane callbacks is wrong. The reason is that this function
still checks the old fb->depth value instead of the new pixel_format.

While checking with all the other places that use this I've noticed
that intel_framebuffer_init already has all the platform checks we
need, so replace those checks with a WARN_ON.

Since fb->depth isn't set for YUV pixel formats and since we already
can't create an fb with an rgb layout not support on the running
platform I /think/ this patch doesn't fix any bug.

But it surely looks better!

v2: BGR formats are also only gen4+, so add the corresponding WARN_ON,
too (Ville).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Daniel Vetter 2013-03-28 16:38:08 +01:00

parent 72f4901e3c

commit d42264b1fc

1 changed files with 21 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

31

drivers/gpu/drm/i915/intel_display.c

View file