drm: Pretty print pixel format in drm_fb_get_bpp_depth() and format_check()
drm_fb_get_bpp_depth() likes to complain about unsupported pixel formats but doesn't bother telling us what the format was. Also format_check() just returns an error when it encouters an invalid format, leaving the user scratching his head trying to figure out why addfb failed. Make life a bit easier by using drm_get_format_name() in both places. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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