WM8900_REG_DACCTRL_MUTE 984 sound/soc/codecs/wm8900.c reg |= WM8900_REG_DACCTRL_MUTE; WM8900_REG_DACCTRL_MUTE 986 sound/soc/codecs/wm8900.c reg &= ~WM8900_REG_DACCTRL_MUTE;