pwrdown_gpio 271 drivers/iio/frequency/ad9523.c struct gpio_desc *pwrdown_gpio; pwrdown_gpio 999 drivers/iio/frequency/ad9523.c st->pwrdown_gpio = devm_gpiod_get_optional(&spi->dev, "powerdown", pwrdown_gpio 1001 drivers/iio/frequency/ad9523.c if (IS_ERR(st->pwrdown_gpio)) { pwrdown_gpio 1002 drivers/iio/frequency/ad9523.c ret = PTR_ERR(st->pwrdown_gpio);