[PATCH 06/12] drm/amd/display: Add new enum for EDID status

[Agustin Gutierrez]

From: Dale Zhao <dale.z...@amd.com>

[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....@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutier...@amd.com>
Signed-off-by: Dale Zhao <dale.z...@amd.com>
---
 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 {
-- 
2.35.1