[MIPI SEQ PARSING v3 03/13] drm/i915: Add Intel opregion mailbox 5 structure

[Deepak M <m.deepak@intel.com>]

Mailbox 5 is BIOS to Driver Notification mailbox is intended
to support BIOS to Driver event notification or data storage
for BIOS to Driver data synchronization purpose. Mailbox 5 is
the extension of mailbox 3.

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Deepak M <m.deepak@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h       | 1 +
 drivers/gpu/drm/i915/intel_opregion.c | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 71bd1dc..135d32a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -457,6 +457,7 @@ struct intel_opregion {
 	u32 swsci_sbcb_sub_functions;
 	struct opregion_asle *asle;
 	void *vbt;
+	struct opregion_asle_ext *asle_ext;
 	u32 *lid_state;
 	struct work_struct asle_work;
 };
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 64efedf..43b7c3b 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -46,6 +46,7 @@
 #define OPREGION_SWSCI_OFFSET  0x200
 #define OPREGION_ASLE_OFFSET   0x300
 #define OPREGION_VBT_OFFSET    0x400
+#define OPREGION_ASLE_EXT_OFFSET	0x1C00
 
 #define OPREGION_SIGNATURE "IntelGraphicsMem"
 #define MBOX_ACPI      (1<<0)
@@ -125,6 +126,13 @@ struct opregion_asle {
 	u8 rsvd[58];
 } __packed;
 
+/* OpRegion mailbox #5: ASLE ext */
+struct opregion_asle_ext {
+	u32 phed;	/* Panel Header */
+	u32 bddc[64];	/* Panel EDID */
+	u32 rsvd[191];
+} __packed;
+
 /* Driver readiness indicator */
 #define ASLE_ARDY_READY		(1 << 0)
 #define ASLE_ARDY_NOT_READY	(0 << 0)
@@ -936,6 +944,7 @@ int intel_opregion_setup(struct drm_device *dev)
 	opregion->vbt = base + OPREGION_VBT_OFFSET;
 
 	opregion->lid_state = base + ACPI_CLID;
+	opregion->asle_ext = base + OPREGION_ASLE_EXT_OFFSET;
 
 	mboxes = opregion->header->mboxes;
 	if (mboxes & MBOX_ACPI) {
-- 
1.9.1

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