+ err = devm_iio_device_register(dev, indio_dev);
+ if (err) {
+ dev_err(dev, "IIO device registering failed (%d)\n", err);
+ return err;
+ }
+
+ stx104gpio->chip.label = dev_name(dev);
+ stx104gpio->chip.parent = dev;
+ stx104gpio->chip.owner = THIS_MODULE;
+ stx104gpio->chip.base = -1;
+ stx104gpio->chip.ngpio = 8;
+ stx104gpio->chip.get_direction = stx104_gpio_get_direction;
+ stx104gpio->chip.direction_input = stx104_gpio_direction_input;
+ stx104gpio->chip.direction_output = stx104_gpio_direction_output;
+ stx104gpio->chip.get = stx104_gpio_get;
+ stx104gpio->chip.set = stx104_gpio_set;
+ stx104gpio->base = base[id] + 3;
+ stx104gpio->out_state = 0x0;
+
+ spin_lock_init(&stx104gpio->lock);
+
+ dev_set_drvdata(dev, stx104gpio);
+
+ err = gpiochip_add_data(&stx104gpio->chip, stx104gpio);
+ if (err) {
+ dev_err(dev, "GPIO registering failed (%d)\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int stx104_remove(struct device *dev, unsigned int id)
+{
+ struct stx104_gpio *const stx104gpio = dev_get_drvdata(dev);
+
+ gpiochip_remove(&stx104gpio->chip);
+
+ return 0;