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| 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/include | |
| 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/include')
| -rw-r--r-- | drivers/gpu/drm/amd/display/include/bios_parser_types.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/include/bios_parser_types.h b/drivers/gpu/drm/amd/display/include/bios_parser_types.h index 01bf01a34a08..c30437ae8395 100644 --- a/drivers/gpu/drm/amd/display/include/bios_parser_types.h +++ b/drivers/gpu/drm/amd/display/include/bios_parser_types.h @@ -307,7 +307,8 @@ struct bp_encoder_cap_info { uint32_t DP_HBR2_EN:1; uint32_t DP_HBR3_EN:1; uint32_t HDMI_6GB_EN:1; - uint32_t RESERVED:30; + uint32_t DP_IS_USB_C:1; + uint32_t RESERVED:27; }; #endif /*__DAL_BIOS_PARSER_TYPES_H__ */ |