From 9a72570491b524c9dc4c1caa7323b2297c27b0b7 Mon Sep 17 00:00:00 2001 From: Meenakshikumar Somasundaram Date: Wed, 10 Jul 2024 12:58:20 -0400 Subject: [PATCH] drm/amd/display: Enable aux transfer path via dmub for dp tunneling [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 Reviewed-by: Eric Yang Tested-by: Daniel Wheeler Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- 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 b8996d285f003..bb4ac5042c803 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", -- 2.47.2