From: Dale Zhao <dale.zhao@xxxxxxx>
[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@xxxxxxx>
Acked-by: Agustin Gutierrez <agustin.gutierrez@xxxxxxx>
Signed-off-by: Dale Zhao <dale.zhao@xxxxxxx>
---
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
