[ARM] 3011/1: pxafb: Add ability to set device parent + fix spitz compile error

Patch from Richard Purdie

Add a function to allow machines to set the parent of the pxa
framebuffer device. This means the power up/down sequence can be
controlled where required by the machine.

Update spitz to use the new function, fixing a compile error.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-pxa/pxafb.h b/include/asm-arm/arch-pxa/pxafb.h
index 21c0e16..aba9b30 100644
--- a/include/asm-arm/arch-pxa/pxafb.h
+++ b/include/asm-arm/arch-pxa/pxafb.h
@@ -66,4 +66,5 @@
 
 };
 void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info);
+void set_pxa_fb_parent(struct device *parent_dev);
 unsigned long pxafb_get_hsync_time(struct device *dev);