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drm/i915/bios: Define VBT block 21 (EFP List) contents

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Define the contents of VBT block 21 (EFP List). Specs are nowhere
to be found, but real world data suggests that each entry is just
the first four bytes of the EDID PnP ID structure.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-23-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2024-05-03 15:24:36 +03:00
parent afa1bf2d5d
commit 9bc6b35635
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/i915/display/intel_vbt_defs.h
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@ -921,6 +921,21 @@ struct bdb_oem_custom {
struct oem_mode modes[];
} __packed;
/*
* Block 21 - EFP List
*/
struct efp_entry {
u16 mfg_name;
u16 product_code;
} __packed;
struct bdb_efp_list {
u8 num_entries;
u8 entry_size;
struct efp_entry efp[];
} __packed;
/*
* Block 22 - SDVO LVDS General Options
*/