github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 00:53:34 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: Enable aux transfer path via dmub for dp tunneling

Browse Source 
[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@amd.com>
Reviewed-by: Eric Yang <eric.yang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Meenakshikumar Somasundaram 2024-07-10 12:58:20 -04:00 committed by Alex Deucher
parent c9bfc37f08
commit 9a72570491
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
View File

@ -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",