From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
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: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 7df0a6044425..c9ecf3b48999 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -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
*/
--
2.43.2
