PCF8563_REG_CLKO_F_MASK 411 drivers/rtc/rtc-pcf8563.c buf &= PCF8563_REG_CLKO_F_MASK; PCF8563_REG_CLKO_F_MASK 441 drivers/rtc/rtc-pcf8563.c buf &= ~PCF8563_REG_CLKO_F_MASK;