diff options
| author | Nikola Cornij <nikola.cornij@amd.com> | 2019-06-25 17:19:25 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 14:27:25 -0500 |
| commit | d68a74541735e030dea56f72746cd26d19986f41 (patch) | |
| tree | 86e5338ef2a5c3c0d279793c73d16980794c81fa /drivers/gpu/drm/amd/display/dc/core | |
| parent | e752058b8671c6c87e484cff144c5c6309a37253 (diff) | |
drm/amd/display: Clear FEC_READY shadow register if DPCD write fails
[why]
As a fail-safe, in case 'set FEC_READY' DPCD write fails, a HW shadow
register should be cleared and the internal FEC stat should be set to
'not ready'. This is to make sure HW settings will be consistent with
FEC_READY state on the RX.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Joshua Aberback <Joshua.Aberback@amd.com>
Acked-by: Chris Park <Chris.Park@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 5c8e3318239c..b512fecae061 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -3174,6 +3174,8 @@ void dp_set_fec_ready(struct dc_link *link, bool ready) link_enc->funcs->fec_set_ready(link_enc, true); link->fec_state = dc_link_fec_ready; } else { + link->link_enc->funcs->fec_set_ready(link->link_enc, false); + link->fec_state = dc_link_fec_not_ready; dm_error("dpcd write failed to set fec_ready"); } } else if (link->fec_state == dc_link_fec_ready) { |