diff options
| author |   Samson Tam <Samson.Tam@amd.com> | 2019-04-12 18:23:11 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:49 -0500 |
| commit | 64827cadcce3023521b687b7db75c7bc388ca201 (patch) | |
| tree | fcfc745d36855a6e9abb43f53b0dcf774b6edc2a /drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | |
| parent | drm/amd/display: add SW_USE_I2C_REG request. (diff) | |
| download | linux-dev-64827cadcce3023521b687b7db75c7bc388ca201.tar.xz linux-dev-64827cadcce3023521b687b7db75c7bc388ca201.zip | |
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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index fd5266a58297..12bc7ee66b18 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -1313,6 +1313,8 @@ static enum bp_result bios_parser_get_encoder_cap_info( ATOM_ENCODER_CAP_RECORD_HBR3_EN) ? 1 : 0; info->HDMI_6GB_EN = (record->encodercaps & ATOM_ENCODER_CAP_RECORD_HDMI6Gbps_EN) ? 1 : 0; + info->DP_IS_USB_C = (record->encodercaps & + ATOM_ENCODER_CAP_RECORD_USB_C_TYPE) ? 1 : 0; return BP_RESULT_OK; } |