drm/amd/display: Set DPIA link endpoint type

[why & how]
We will need a way to distinguish physically connected
links and DPIA endpoints.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 20b4819..66182b8 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1732,6 +1732,8 @@ static bool dc_link_construct_dpia(struct dc_link *link,
                  init_params->connector_index,
                  link->connector_signal);
 
+       link->ep_type = DISPLAY_ENDPOINT_USB4_DPIA;
+
        /* TODO: Initialize link : funcs->link_init */
 
        ddc_service_init_data.ctx = link->ctx;

diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 3c109c8..15c353c 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -955,6 +955,7 @@ enum dc_psr_version {
 /* Possible values of display_endpoint_id.endpoint */
 enum display_endpoint_type {
        DISPLAY_ENDPOINT_PHY = 0, /* Physical connector. */
+       DISPLAY_ENDPOINT_USB4_DPIA, /* USB4 DisplayPort tunnel. */
        DISPLAY_ENDPOINT_UNKNOWN = -1
 };