From: Peichen Huang <PeiChen.Huang@xxxxxxx>
[WHY]
In current HPO DP2 implementation, driver would enable/disable DIG
encoder when configuring HPO DP2. Therefore, usb4 dp tunnelling should
not use the DIG encoder if the corresponded phy is used by a HPO DP2
stream.
[HOW]
A DP2 stream is treated as a dig stream.
Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@xxxxxxx>
Signed-off-by: Peichen Huang <PeiChen.Huang@xxxxxxx>
Signed-off-by: Roman Li <roman.li@xxxxxxx>
---
.../drm/amd/display/dc/core/dc_link_enc_cfg.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
index 08b4258b0e2f..814f68d76257 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
@@ -44,20 +44,8 @@ static bool is_dig_link_enc_stream(struct dc_stream_state *stream)
* yet match.
*/
if (link_enc && ((uint32_t)stream->link->connector_signal & link_enc->output_signals)) {
- if (dc_is_dp_signal(stream->signal)) {
- /* DIGs do not support DP2.0 streams with 128b/132b encoding. */
- struct dc_link_settings link_settings = {0};
-
- stream->ctx->dc->link_srv->dp_decide_link_settings(stream, &link_settings);
- if ((link_settings.link_rate >= LINK_RATE_LOW) &&
- link_settings.link_rate <= LINK_RATE_HIGH3) {
- is_dig_stream = true;
- break;
- }
- } else {
- is_dig_stream = true;
- break;
- }
+ is_dig_stream = true;
+ break;
}
}
}
--
2.34.1
