gma500: intel_bios updates

Pull in various i915 bits that we will need to begin tackling the LVDS detect
and ACPI events. We try and drift towards the i915 version of the code with
the long term goal that at least some of it can one day be unified.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/psb_drv.h

@@ -257,6 +257,7 @@ struct psb_intel_opregion {
 	struct opregion_acpi *acpi;
 	struct opregion_swsci *swsci;
 	struct opregion_asle *asle;
+	void *vbt;
 	int enabled;
 };
 
@@ -494,6 +495,9 @@ struct psb_ops;
 struct drm_psb_private {
 	struct drm_device *dev;
 	const struct psb_ops *ops;
+	
+	struct child_device_config *child_dev;
+	int child_dev_num;
 
 	struct psb_gtt gtt;