drm/amd/display: Default HDMI6G support to true. Log VBIOS table error.
authorHarry Wentland <harry.wentland@amd.com>
Tue, 20 Feb 2018 18:36:23 +0000 (13:36 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 5 Mar 2018 20:36:37 +0000 (15:36 -0500)
commitea74e15fb547483f9f86088443f2d3c9f518de8b
tree9cdd61d4bccb5d90f73721b3bc13078799291d79
parenta05bcff10426841351010e8648e4d9d95e9b65a1
drm/amd/display: Default HDMI6G support to true. Log VBIOS table error.

There have been many reports of Ellesmere and Baffin systems not being
able to drive HDMI 4k60 due to the fact that we check the HDMI_6GB_EN
bit from VBIOS table. Windows seems to not have this issue.

On some systems we fail to the encoder cap info from VBIOS. In that case
we should default to enabling HDMI6G support.

This was tested by dwagner on
https://bugs.freedesktop.org/show_bug.cgi?id=102820

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c