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| author | Leo (Hanghong) Ma <hanghong.ma@amd.com> | 2023-01-18 13:59:42 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-02-08 17:15:42 -0500 |
| commit | 71d7e8904d540dde6eaae4e3bac9cfd1894f4eaa (patch) | |
| tree | 2ebf52708b5bec301912c10366609b5e740f93a5 /drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h | |
| parent | af23aee9e9ba3cfe8693928323bf8e06296076d6 (diff) | |
| download | linux-stable-71d7e8904d540dde6eaae4e3bac9cfd1894f4eaa.tar.gz linux-stable-71d7e8904d540dde6eaae4e3bac9cfd1894f4eaa.tar.bz2 linux-stable-71d7e8904d540dde6eaae4e3bac9cfd1894f4eaa.zip | |
drm/amd/display: Add HDMI manufacturer OUI and device id read
[Why && How]
Add support to read manufacturer OUI
and device id from HDMI SCDC.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h b/drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h index faf0d175bf19..c364744b4c83 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_hdmi_types.h @@ -69,6 +69,9 @@ static const uint8_t dp_hdmi_dongle_signature_str[] = "DP-HDMI ADAPTOR"; #define HDMI_SCDC_ERR_DETECT 0x50 #define HDMI_SCDC_TEST_CONFIG 0xC0 +#define HDMI_SCDC_MANUFACTURER_OUI 0xD0 +#define HDMI_SCDC_DEVICE_ID 0xDB + union hdmi_scdc_update_read_data { uint8_t byte[2]; struct { @@ -111,4 +114,21 @@ union hdmi_scdc_ced_data { } fields; }; +union hdmi_scdc_manufacturer_OUI_data { + uint8_t byte[3]; + struct { + uint8_t Manufacturer_OUI_1:8; + uint8_t Manufacturer_OUI_2:8; + uint8_t Manufacturer_OUI_3:8; + } fields; +}; + +union hdmi_scdc_device_id_data { + uint8_t byte; + struct { + uint8_t Hardware_Minor_Rev:4; + uint8_t Hardware_Major_Rev:4; + } fields; +}; + #endif /* DC_HDMI_TYPES_H */ |