iio: pressure: bmp280: Explicitly mark GPIO optional

Show by using a corresponding API call that GPIO is optional.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index ce0c196..263a746 100644 (file)
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -1066,9 +1066,9 @@ int bmp280_common_probe(struct device *dev,
        usleep_range(data->start_up_time, data->start_up_time + 100);
 
        /* Bring chip out of reset if there is an assigned GPIO line */
-       gpiod = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+       gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
        /* Deassert the signal */
-       if (!IS_ERR(gpiod)) {
+       if (gpiod) {
                dev_info(dev, "release reset\n");
                gpiod_set_value(gpiod, 0);
        }