prcmu_abb_write   510 include/linux/mfd/db8500-prcmu.h int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);
prcmu_abb_write   268 include/linux/mfd/dbx500-prcmu.h int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);