diff mbox series

[22/35] drm/i915/bios: Define VBT block 21 (EFP List) contents

Message ID 20240503122449.27266-23-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/bios: Define (almost) all BDB blocks | expand

Commit Message

Ville Syrjala May 3, 2024, 12:24 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

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>
---
 drivers/gpu/drm/i915/display/intel_vbt_defs.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index a61ae39196b1..6216c1689901 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -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
  */