From 12f86dfc075b51a27cac81005a4583b2631234ac Mon Sep 17 00:00:00 2001
From: Jake Wang <haonan.wang2@amd.com>
Date: Thu, 22 Oct 2020 15:23:16 -0400
Subject: [PATCH] drm/amd/display: set hdcp1 wa re-auth delay to 200ms
[Why]
Fail and restart timing for HDCP1 retry occurs too quickly.
This would cause some MST monitors to show black screen.
[How]
Adjusted timing of fail and restart to 200ms.
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
index f3711914364e..24ab95b093f7 100644
--- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
@@ -231,7 +231,7 @@ enum mod_hdcp_status mod_hdcp_hdcp1_dp_transition(struct mod_hdcp *hdcp,
fail_and_restart_in_ms(0, &status, output);
break;
} else if (conn->hdcp1_retry_count < conn->link.adjust.hdcp1.min_auth_retries_wa) {
- fail_and_restart_in_ms(0, &status, output);
+ fail_and_restart_in_ms(200, &status, output);
break;
}
if (conn->is_repeater) {