tree 0c4e21dba0e9a0c21dd3dbfee02513ee25f24f63
parent 040a4d63bde4bbd5fd7ae40a7b94a05b259cca06
author Samson Tam <Samson.Tam@amd.com> 1555107791 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1561214051 -0500

drm/amd/display: block passive dongle EDID Emulation for USB-C ports

[Why]
Emulating passive dongle on USB-C port causes issue on some asics.

[How]
Check for DP_IS_USB_C flag in bios parser and propagate it to
encoder features flags. If DP_IS_USB_C flag is set and it is trying to
emulate passive dongle, then return fail.

Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>