CFG_GAMMA_ENA_MASK  421 drivers/video/fbdev/mmp/hw/mmp_ctrl.h #define	 CFG_GAMMA_ENA_MASK			0x40000000
CFG_GAMMA_ENA_MASK  212 drivers/video/fbdev/pxa168fb.h #define     CFG_GAMMA_ENA_MASK			0x40000000