gpiod_enable 15 sound/soc/codecs/simple-amplifier.c struct gpio_desc *gpiod_enable; gpiod_enable 37 sound/soc/codecs/simple-amplifier.c gpiod_set_value_cansleep(priv->gpiod_enable, val); gpiod_enable 79 sound/soc/codecs/simple-amplifier.c priv->gpiod_enable = devm_gpiod_get_optional(dev, "enable", gpiod_enable 81 sound/soc/codecs/simple-amplifier.c if (IS_ERR(priv->gpiod_enable)) { gpiod_enable 82 sound/soc/codecs/simple-amplifier.c err = PTR_ERR(priv->gpiod_enable);