From: Jake Wang <haonan.wang2@amd.com>
Date: Thu, 22 Oct 2020 19:23:16 +0000 (-0400)
Subject: drm/amd/display: set hdcp1 wa re-auth delay to 200ms
X-Git-Tag: baikal/mips/sdk5.9~12066^2~12^2~46
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=c3884f20c0493348f5510f0bebfea15f95ea4d80;p=kernel.git

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>
---

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 f3711914364e5..24ab95b093f76 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) {