|
[Public]
Seems reasonable.
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
From: Mahapatra, Rajib <Rajib.Mahapatra@xxxxxxx>
Sent: Monday, January 10, 2022 4:06 AM To: Wu, Hersen <hersenxs.wu@xxxxxxx>; Wentland, Harry <Harry.Wentland@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; S, Shirish <Shirish.S@xxxxxxx>; Mahapatra, Rajib <Rajib.Mahapatra@xxxxxxx> Subject: [PATCH] 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 sigficantamount 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. Signed-off-by: Rajib Mahapatra <rajib.mahapatra@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 c0bdc23702c8..04086c199dbb 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -892,7 +892,8 @@ 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); -- 2.25.1 |
