SCLK_SOURCE_SELECT  185 arch/arm/mach-mmp/ttc_dkb.c #define SCLK_SOURCE_SELECT(x)  (x << 30) /* 0x0 ~ 0x3 */
SCLK_SOURCE_SELECT  332 drivers/video/fbdev/pxa168fb.h #define     SCLK_SOURCE_SELECT(src)		((src) << 31)