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drm/amd/display: Reduce HPD Detection Interval for IPS

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Fix DP Compliance test 4.2.1.3, 4.2.2.8, 4.3.1.12, 4.3.1.13
when IPS enabled.

Original HPD detection interval is set to 5s which violates DP
compliance.
Reduce the interval parameter, such that link training can be
finished within 5 seconds.

Fixes: afca033f10 ("drm/amd/display: Add periodic detection for IPS")
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Fangzhi Zuo
2024-10-15 14:22:32 -04:00
committed by Alex Deucher
parent 68bf95317e
commit a88b19b13f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
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@@ -35,7 +35,7 @@
#include "amdgpu_dm_trace.h"
#include "amdgpu_dm_debugfs.h"
#define HPD_DETECTION_PERIOD_uS 5000000
#define HPD_DETECTION_PERIOD_uS 2000000
#define HPD_DETECTION_TIME_uS 100000
void amdgpu_dm_crtc_handle_vblank(struct amdgpu_crtc *acrtc)