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| author |   Rajib Mahapatra <rajib.mahapatra@amd.com> | 2022-01-10 13:15:19 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-01-25 18:00:32 -0500 |
| commit | 83a3766b147053e542f3c91c121cb9594239e644 (patch) | |
| tree | 7088777b3a385720b047bbbe57412fe48e6436a4 | |
| parent | drm/amd/pm: drop unneeded hwmgr->smu_lock (diff) | |
| download | linux-dev-83a3766b147053e542f3c91c121cb9594239e644.tar.xz linux-dev-83a3766b147053e542f3c91c121cb9594239e644.zip | |
drm/amd/display: Not to call dpcd_set_source_specific_data during resume.
[Why]
During resume path, dpcd_set_source_specific_data is taking
extra time when core_link_write_dpcd fails on DP_SOURCE_OUI+0x03
and DP_SOURCE_MINIMUM_HBLANK_SUPPORTED. Here,aux->transfer fails
with multiple retries and consume significant amount time during
S0i3 resume.
[How]
Not to call dpcd_set_source_specific_data during resume path
when there is no oled panel connected and achieve faster resume
during S0i3.
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Rajib Mahapatra <rajib.mahapatra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 0c64dea4fdd8..e5d63b0d2594 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -862,7 +862,8 @@ static bool dc_link_detect_helper(struct dc_link *link, (!link->dc->config.allow_edp_hotplug_detection)) && link->local_sink) { // need to re-write OUI and brightness in resume case - if (link->connector_signal == SIGNAL_TYPE_EDP) { + if (link->connector_signal == SIGNAL_TYPE_EDP && + (link->dpcd_sink_ext_caps.bits.oled == 1)) { dpcd_set_source_specific_data(link); msleep(post_oui_delay); dc_link_set_default_brightness_aux(link); |