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authorTomeu Vizoso <tomeu.vizoso@collabora.com>2017-02-20 16:25:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-15 09:57:15 +0800
commit36fd36b900b9382af54a1e49a81cd99663b83eda (patch)
tree2b226d288a40f356148722b75dab50705a66774f
parentb9cfd5517b309513e50d80b89eaae98a82a2c3b1 (diff)
downloadlinux-linaro-stable-36fd36b900b9382af54a1e49a81cd99663b83eda.tar.gz
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
commit 36fc579761b50784b63dafd0f2e796b659e0f5ee upstream. 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: 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/drm_edid.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 8c9ac021608f..cc1e16fd7e76 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -144,6 +144,9 @@ static struct edid_quirk {
/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
+
+ /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
+ { "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
};
/*