drm/amd/display: Allow truncation to 10 bits
authorMikita Lipski <mikita.lipski@amd.com>
Wed, 7 Mar 2018 15:49:23 +0000 (10:49 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 21 Mar 2018 05:22:08 +0000 (00:22 -0500)
commit8bfac12f88dbafff40af72c7990b7d14e0158545
tree906427dd972b55b6226d6971bc3a5864b3c2c801
parentcd2d6c92a8e39d7e50a5af9fcc67d07e6a89e91d
drm/amd/display: Allow truncation to 10 bits

The truncation isn't being programmed if the truncation
depth is set to 2, it causes an issue with dce11.2 asic
using 6bit eDP panel. It required to truncate 12:10 in order to
perform spatial dither 10:6.

This change will allow 12:10 truncation to be enabled.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dce/dce_opp.c