diff options
| author | Anthony Koo <anthony.koo@amd.com> | 2019-06-12 23:30:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 22:18:09 +0300 |
| commit | 88eac241a1fc500ce5274a09ddc4bd5fc2b5adb6 (patch) | |
| tree | 014ba63386f2ad112bc7be5ee30701e9440fd596 /drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | |
| parent | 606b355170b56549890e8202a2b62f97d28b395e (diff) | |
| download | linux-88eac241a1fc500ce5274a09ddc4bd5fc2b5adb6.tar.xz | |
drm/amd/display: add monitor patch to add T7 delay
[Why]
Specifically to one panel,
TCON is able to accept active video signal quickly, but
the Source Driver requires 2-3 frames of extra time.
It is a Panel issue since TCON needs to take care of
all Sink requirements including Source Driver. But in
this case it does not.
Customer is asking to add fixed T7 delay as panel
workaround.
[How]
Add monitor specific patch to add T7 delay
Signed-off-by: Anthony Koo <anthony.koo@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@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/dc_link_hwss.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 46257f0fcbe7..878f47b59d5a 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -162,6 +162,10 @@ bool edp_receiver_ready_T7(struct dc_link *link) break; udelay(25); //MAx T7 is 50ms } while (++tries < 300); + + if (link->local_sink->edid_caps.panel_patch.extra_t7_ms > 0) + udelay(link->local_sink->edid_caps.panel_patch.extra_t7_ms * 1000); + return result; } |