leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amd/display: AMD OUI (DPCD 0x00300) skipped on some sink

Browse Source 
[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 <aric.cyr@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aric Cyr 2020-07-23 13:06:23 -04:00 committed by Alex Deucher
parent 7edac0d3fb
commit e106c96e2e
1 changed files with 0 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -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;