From 7f53732e401bbc866bf4e5f5ece0889685e64ff7 Mon Sep 17 00:00:00 2001
From: Dale Zhao <dale.zhao@amd.com>
Date: Thu, 10 Mar 2022 17:20:39 -0500
Subject: drm/amd/display: Add new enum for EDID status
Git-commit: 906fbba2c9d48678fd182d0de4dd193d9dd0cc9c
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
[Why]
We must support a new type of partial edid return in the future
[How]
Add interface and case hander for partial edid
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 +++
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index b3ca3307d39d..cb87dd643180 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1183,6 +1183,9 @@ static bool detect_link_and_local_sink(struct dc_link *link,
case EDID_BAD_CHECKSUM:
DC_LOG_ERROR("EDID checksum invalid.\n");
break;
+ case EDID_PARTIAL_VALID:
+ DC_LOG_ERROR("Partial EDID valid, abandon invalid blocks.\n");
+ break;
case EDID_NO_RESPONSE:
DC_LOG_ERROR("No EDID read.\n");
/*
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 48859d5fc172..2ba9f528c0fe 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -138,6 +138,7 @@ enum dc_edid_status {
EDID_BAD_CHECKSUM,
EDID_THE_SAME,
EDID_FALL_BACK,
+ EDID_PARTIAL_VALID,
};
enum act_return_status {
--
2.38.1