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

[Mika Kahola]

On Tue, 2015-12-01 at 04:17 +0530, Deepak M wrote:
> 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 at intel.com>
Tested-by: Mika Kahola <mika.kahola at intel.com>
> Signed-off-by: Deepak M <m.deepak at 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) {