From: Jimmy Kizito <Jimmy.Kizito@xxxxxxx>
[why & how]
Add codes for commit "f42ef862fb1f drm/amd/display: Add dynamic
link encoder selection" to support USB4 DP tunneling feature.
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Wayne Lin <Wayne.Lin@xxxxxxx>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 ++
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
2 files changed, 3 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 20b4819b73e4..66182b8c217b 100644
--- 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 3c109c805447..15c353c389d8 100644
--- 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
};
--
2.25.1
