WM8990_GPIO1_GPIO2 1440 sound/soc/codecs/wm8990.c reg = wm8990_read_reg_cache(codec, WM8990_GPIO1_GPIO2) & WM8990_GPIO1_GPIO2 1442 sound/soc/codecs/wm8990.c wm8990_write(codec, WM8990_GPIO1_GPIO2, reg | 1);