diff options
| author | Tao <xtao@amd.com> | 2018-02-08 16:04:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:20:15 -0500 |
| commit | 3b94a4007dcfd4ac5780cd3d8a2d99979c966073 (patch) | |
| tree | d4729668a1168225a2acc535814b7928126c764d /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | e923a355aa5dc861d4a50c29a292242bd90140c8 (diff) | |
drm/amd/display: Set vsc pack revision when DPCD revision is >= 1.2
Brightness couldn't change when booting up in DC mode.
It was because "psr_enabled" flag was not set to true before
setting vsc packet revision, causing packet rev setup was skipped.
Now instead of checking the psr flag, it checks if the DPCD_REV >= 1.2
and set the vsc packet revision.
Signed-off-by: Tao <xtao@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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index a6f8c1f93693..ce0e9e76eb35 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -35,6 +35,7 @@ #include "core_types.h" #include "set_mode_types.h" #include "virtual/virtual_stream_encoder.h" +#include "dpcd_defs.h" #include "dce80/dce80_resource.h" #include "dce100/dce100_resource.h" @@ -2434,7 +2435,8 @@ static void set_vsc_info_packet( unsigned int vscPacketRevision = 0; unsigned int i; - if (stream->sink->link->psr_enabled) { + /*VSC packet set to 2 when DP revision >= 1.2*/ + if (stream->sink->link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_12) { vscPacketRevision = 2; } |