WM8983_BIASEN_MASK 877 sound/soc/codecs/wm8983.c WM8983_BIASEN_MASK, WM8983_BIASEN); WM8983_BIASEN_MASK 900 sound/soc/codecs/wm8983.c WM8983_VMIDSEL_MASK | WM8983_BIASEN_MASK,