From: Austin Zheng <austin.zheng@xxxxxxx>
Why:
Log DP2 data to be used for debugging purposes
How:
Check the reported link rate of the DP connection and
translate it to the DP version.
Acked-by: Stylon Wang <stylon.wang@xxxxxxx>
Signed-off-by: Austin Zheng <austin.zheng@xxxxxxx>
Reviewed-by: Martin Leung <Martin.Leung@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dc.h | 6 ++++--
drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 2 +-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 360dd83b1a7a..7cf3e9510043 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2012-14 Advanced Micro Devices, Inc.
+ * Copyright 2012-2023 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -60,7 +60,9 @@ struct dc_versions {
};
enum dp_protocol_version {
- DP_VERSION_1_4,
+ DP_VERSION_1_4 = 0,
+ DP_VERSION_2_1,
+ DP_VERSION_UNKNOWN,
};
enum dc_plane_type {
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
index 4a7f6497dc5a..55139d7bf422 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -61,7 +61,7 @@ enum dc_link_rate {
*/
LINK_RATE_UHBR10 = 1000, // UHBR10 - 10.0 Gbps/Lane
LINK_RATE_UHBR13_5 = 1350, // UHBR13.5 - 13.5 Gbps/Lane
- LINK_RATE_UHBR20 = 2000, // UHBR10 - 20.0 Gbps/Lane
+ LINK_RATE_UHBR20 = 2000, // UHBR20 - 20.0 Gbps/Lane
};
enum dc_link_spread {
--
2.40.1
