iio: frequency: ad9523: add dev variable

Introduce a local struct device variable in ad9523_probe() to simplify
subsequent conversions and improve code readability.

Split pdata declaration and assignment since the result is validated
immediately after.

No functional change.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index ad32eb66edca05effc2457254901846e22755da4..f4e80ea0c6d29d430bd9ef7b80dd6bf716baf1c2 100644 (file)
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -948,17 +948,19 @@ static int ad9523_setup(struct iio_dev *indio_dev)
 
 static int ad9523_probe(struct spi_device *spi)
 {
-       struct ad9523_platform_data *pdata = dev_get_platdata(&spi->dev);
+       struct device *dev = &spi->dev;
+       struct ad9523_platform_data *pdata;
        struct iio_dev *indio_dev;
        struct ad9523_state *st;
        int ret;
 
+       pdata = dev_get_platdata(dev);
        if (!pdata) {
                dev_err(&spi->dev, "no platform data?\n");
                return -EINVAL;
        }
 
-       indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+       indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
        if (indio_dev == NULL)
                return -ENOMEM;
 
@@ -966,16 +968,16 @@ static int ad9523_probe(struct spi_device *spi)
 
        mutex_init(&st->lock);
 
-       ret = devm_regulator_get_enable(&spi->dev, "vcc");
+       ret = devm_regulator_get_enable(dev, "vcc");
        if (ret)
                return ret;
 
-       st->pwrdown_gpio = devm_gpiod_get_optional(&spi->dev, "powerdown",
+       st->pwrdown_gpio = devm_gpiod_get_optional(dev, "powerdown",
                GPIOD_OUT_HIGH);
        if (IS_ERR(st->pwrdown_gpio))
                return PTR_ERR(st->pwrdown_gpio);
 
-       st->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
+       st->reset_gpio = devm_gpiod_get_optional(dev, "reset",
                GPIOD_OUT_LOW);
        if (IS_ERR(st->reset_gpio))
                return PTR_ERR(st->reset_gpio);
@@ -985,7 +987,7 @@ static int ad9523_probe(struct spi_device *spi)
                gpiod_direction_output(st->reset_gpio, 1);
        }
 
-       st->sync_gpio = devm_gpiod_get_optional(&spi->dev, "sync",
+       st->sync_gpio = devm_gpiod_get_optional(dev, "sync",
                GPIOD_OUT_HIGH);
        if (IS_ERR(st->sync_gpio))
                return PTR_ERR(st->sync_gpio);
@@ -1005,7 +1007,7 @@ static int ad9523_probe(struct spi_device *spi)
        if (ret < 0)
                return ret;
 
-       return devm_iio_device_register(&spi->dev, indio_dev);
+       return devm_iio_device_register(dev, indio_dev);
 }
 
 static const struct spi_device_id ad9523_id[] = {