diff options
author | Calvin Hou <Calvin.Hou@amd.com> | 2020-01-27 14:40:41 -0500 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-11 11:49:47 -0500 |
commit | 0136684f9b58b78fb2b8671e8eaa7bfc41330e0f (patch) | |
tree | b195b45dfa04b83365da9c5dfefd02366551c807 /drivers/gpu/drm/amd/display/dc/dc_dp_types.h | |
parent | 5c4a6d6297b0767c00d66349627b3c2f0d7866a7 (diff) | |
download | linux-stable-0136684f9b58b78fb2b8671e8eaa7bfc41330e0f.tar.gz linux-stable-0136684f9b58b78fb2b8671e8eaa7bfc41330e0f.tar.bz2 linux-stable-0136684f9b58b78fb2b8671e8eaa7bfc41330e0f.zip |
drm/amd/display: Pass override OUI in to dc_init_data
[WHY]
Vendor dongle requires propietary OUI and handshake sequence.
[HOW]
Add a new structure to dc_init_data, to allow creator to pass
an override vendor_oui. This value will be written to DP_SOURCE_OUI
instead of AMD signature, when dpcd_set_source_specific_data is
called.
Signed-off-by: Calvin Hou <Calvin.Hou@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dp_types.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h index f762f35f529d..bb2730e9521e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h @@ -432,6 +432,20 @@ struct dp_sink_hw_fw_revision { uint8_t ieee_fw_rev[2]; }; +struct dpcd_vendor_signature { + bool is_valid; + + union dpcd_ieee_vendor_signature { + struct { + uint8_t ieee_oui[3];/*24-bit IEEE OUI*/ + uint8_t ieee_device_id[6];/*usually 6-byte ASCII name*/ + uint8_t ieee_hw_rev; + uint8_t ieee_fw_rev[2]; + }; + uint8_t raw[12]; + } data; +}; + struct dpcd_amd_signature { uint8_t AMD_IEEE_TxSignature_byte1; uint8_t AMD_IEEE_TxSignature_byte2; |