From: Roman Li <Roman.Li@amd.com>
Date: Mon, 30 Sep 2024 22:07:16 +0000 (-0400)
Subject: drm/amd/display: Increase idle worker HPD detection time
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=60612f75992d96955fb7154468c58d5d168cf1ab;p=linux.git

drm/amd/display: Increase idle worker HPD detection time

[Why]
Idle worker thread waits HPD_DETECTION_TIME for HPD processing complete.
Some displays require longer time for that.

[How]
Increase HPD_DETECTION_TIME to 100ms.

Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index 32fa643cd899..ffa4d3965b4b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -36,7 +36,7 @@
 #include "amdgpu_dm_debugfs.h"
 
 #define HPD_DETECTION_PERIOD_uS 5000000
-#define HPD_DETECTION_TIME_uS 1000
+#define HPD_DETECTION_TIME_uS 100000
 
 void amdgpu_dm_crtc_handle_vblank(struct amdgpu_crtc *acrtc)
 {