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| author | Matthew Stewart <Matthew.Stewart2@amd.com> | 2026-05-18 21:34:57 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-06-03 13:43:29 -0400 |
| commit | 6750a2316f3f3b34016bcc425a0e99af1efb1c58 (patch) | |
| tree | 460b490e17e3f44b74de82cc1d124dbdaca3c72c /drivers/gpu/drm/amd/display/include | |
| parent | 9aef3d167a1c0f1a59ef043ee7b0f525936fbfc6 (diff) | |
| download | linux-next-6750a2316f3f3b34016bcc425a0e99af1efb1c58.tar.gz linux-next-6750a2316f3f3b34016bcc425a0e99af1efb1c58.zip | |
drm/amd/display: Add no_native_i2c codepath
[Why]
ASICs which do not have native DDC capability must use a different
codepath to access the AUX channel.
[How]
- BIOS cap NO_DDC_PIN is set to 1 for links which do not have the DDC pin.
- dp_connector_no_native_i2c in dc_config must also be set to true to
use this codepath.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Matthew Stewart <Matthew.Stewart2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@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 | 1 |
1 files changed, 1 insertions, 0 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 b5d97b394131..13da300fd4b7 100644 --- a/drivers/gpu/drm/amd/display/include/bios_parser_types.h +++ b/drivers/gpu/drm/amd/display/include/bios_parser_types.h @@ -317,6 +317,7 @@ struct bp_spread_spectrum_parameters { struct bp_disp_connector_caps_info { uint32_t INTERNAL_DISPLAY : 1; uint32_t INTERNAL_DISPLAY_BL : 1; + uint32_t NO_DDC_PIN : 1; }; struct bp_encoder_cap_info { |