From: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@xxxxxxx>
[Why]
Aux transfer retries path does not support dp tunneling.
[How]
Based on ddc pin check, aux will be issued in legacy path or dmub.
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@xxxxxxx>
Reviewed-by: Eric Yang <eric.yang@xxxxxxx>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
index b8996d285f00..bb4ac5042c80 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
@@ -735,7 +735,15 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc,
(unsigned int) payload->mot);
if (payload->write)
dce_aux_log_payload(" write", payload->data, payload->length, 16);
- ret = dce_aux_transfer_raw(ddc, payload, &operation_result);
+
+ /* Check whether aux to be processed via dmub or dcn directly */
+ if (ddc->ctx->dc->debug.enable_dmub_aux_for_legacy_ddc
+ || ddc->ddc_pin == NULL) {
+ ret = dce_aux_transfer_dmub_raw(ddc, payload, &operation_result);
+ } else {
+ ret = dce_aux_transfer_raw(ddc, payload, &operation_result);
+ }
+
DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_INFORMATION,
LOG_FLAG_I2cAux_DceAux,
"dce_aux_transfer_with_retries: link_index=%u: END: retry %d of %d: address=0x%04x length=%u write=%d mot=%d: ret=%d operation_result=%d payload->reply=%u",
--
2.43.0
