VSYNC_IRQ_LEVEL_MASK  818 drivers/video/fbdev/mmp/hw/mmp_ctrl.h #define	 VSYNC_IRQ_LEVEL_MASK			0x00000080
VSYNC_IRQ_LEVEL_MASK  472 drivers/video/fbdev/pxa168fb.h #define     VSYNC_IRQ_LEVEL_MASK		0x00000080