drm/amd/display: Waiting for 1 frame to fix the flash issue on PSR1

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / display / dc / dce / dmub_psr.c

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
index cda1592..2d3201b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
@@ -413,6 +413,11 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub,
        else
                copy_settings_data->debug.bitfields.force_wakeup_by_tps3 = 0;
 
+       //WA for PSR1 on specific TCON, require frame delay for frame re-lock
+       copy_settings_data->relock_delay_frame_cnt = 0;
+       if (link->dpcd_caps.sink_dev_id == DP_BRANCH_DEVICE_ID_001CF8)
+               copy_settings_data->relock_delay_frame_cnt = 2;
+
        dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
        dc_dmub_srv_cmd_execute(dc->dmub_srv);
        dc_dmub_srv_wait_idle(dc->dmub_srv);