From e106c96e2e0a0b9c1305d54480b60cb670d7fd1b Mon Sep 17 00:00:00 2001 From: Aric Cyr Date: Thu, 23 Jul 2020 13:06:23 -0400 Subject: drm/amd/display: AMD OUI (DPCD 0x00300) skipped on some sink [Why] Sink OUI supported cap is not set so driver skips programming it. [How] Revert the change the skips OUI programming if the cap is not set Signed-off-by: Aric Cyr Reviewed-by: Anthony Koo Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index d7d2dcd49c06..9bc03f26efda 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -4339,22 +4339,6 @@ void dp_set_fec_enable(struct dc_link *link, bool enable) void dpcd_set_source_specific_data(struct dc_link *link) { - uint8_t dspc = 0; - enum dc_status ret; - - ret = core_link_read_dpcd(link, DP_DOWN_STREAM_PORT_COUNT, &dspc, - sizeof(dspc)); - - if (ret != DC_OK) { - DC_LOG_ERROR("Error in DP aux read transaction," - " not writing source specific data\n"); - return; - } - - /* Return if OUI unsupported */ - if (!(dspc & DP_OUI_SUPPORT)) - return; - if (!link->dc->vendor_signature.is_valid) { struct dpcd_amd_signature amd_signature; amd_signature.AMD_IEEE_TxSignature_byte1 = 0x0; -- cgit v1.2.3