From: Anthony Koo <Anthony.Koo@xxxxxxx>
[Why]
We want to know DP protocol version
[How]
In DC create we initialize a cap to indicate the max
DP protocol version supported
Signed-off-by: Anthony Koo <Anthony.Koo@xxxxxxx>
Reviewed-by: Aric Cyr <Aric.Cyr@xxxxxxx>
Acked-by: Leo Li <sunpeng.li@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++
drivers/gpu/drm/amd/display/dc/dc.h | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 061e8adf7476..55f22a1c0aa5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -809,6 +809,8 @@ struct dc *dc_create(const struct dc_init_data *init_params)
dc->caps.max_audios = dc->res_pool->audio_count;
dc->caps.linear_pitch_alignment = 64;
+ dc->caps.max_dp_protocol_version = DP_VERSION_1_4;
+
/* Populate versioning information */
dc->versions.dc_ver = DC_VER;
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 34b824270c84..4c7a2882a512 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -54,6 +54,10 @@ struct dc_versions {
struct dmcu_version dmcu_version;
};
+enum dp_protocol_version {
+ DP_VERSION_1_4,
+};
+
enum dc_plane_type {
DC_PLANE_TYPE_INVALID,
DC_PLANE_TYPE_DCE_RGB,
@@ -114,6 +118,7 @@ struct dc_caps {
bool extended_aux_timeout_support;
bool dmcub_support;
bool hw_3d_lut;
+ enum dp_protocol_version max_dp_protocol_version;
struct dc_plane_cap planes[MAX_PLANES];
};
--
2.24.0
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