Commit 22794e6c authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/bios: Define VBT block 4 (Mode Support List) contents 



Define the contents of VBT block 4 (Mode Support List).

Slightly crazy layout with a variable length list at the start,
followed by the length of said list.

No real idea what these "Intel mode numbers" really are. What
I see in real world VBTs seems to be always the same list of
26 numbers, ranging between 0x30 and 0x84.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-11-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent c58f254b

drivers/gpu/drm/i915/display/intel_vbt_defs.h

+9 −0
Original line number Diff line number Diff line
@@ -571,6 +571,15 @@ struct bdb_display_toggle { 
	u16 list[];						/* ALM only */

} __packed;



/*

 * Block 4 - Mode Support List

 */



struct bdb_mode_support_list {

	u8 intel_mode_number[0];

	u16 mode_list_length;

} __packed;



/*

 * Block 9 - SRD Feature Block

 */