drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
authorTomeu Vizoso <tomeu.vizoso@collabora.com>
Mon, 20 Feb 2017 15:25:45 +0000 (16:25 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 6 Mar 2017 07:28:10 +0000 (08:28 +0100)
commit36fc579761b50784b63dafd0f2e796b659e0f5ee
tree0946cf349d28a2ae3585a5635b535c4fb469ed1b
parentc1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058

Rotel RSX-1058 is a receiver with 4 HDMI inputs and a HDMI output, all
1.1.

When a sink that supports deep color is connected to the output, the
receiver will send EDIDs that advertise this capability, even if it
isn't possible with HDMI versions earlier than 1.3.

Currently the kernel is assuming that deep color is possible and the
sink displays an error.

This quirk will make sure that deep color isn't used with this
particular receiver.

Fixes: 7a0baa623446 ("Revert "drm/i915: Disable 12bpc hdmi for now"")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170220152545.13153-1-tomeu.vizoso@collabora.com
Cc: stable@vger.kernel.org
Cc: Matt Horan <matt@matthoran.com>
Tested-by: Matt Horan <matt@matthoran.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99869
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
drivers/gpu/drm/drm_edid.c