iio: common: cros_ec_sensors: simplify getting .drvdata

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c

@@ -447,8 +447,7 @@ EXPORT_SYMBOL_GPL(cros_ec_sensors_core_write);
 
 static int __maybe_unused cros_ec_sensors_prepare(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
 
 	if (st->curr_sampl_freq == 0)
@@ -470,8 +469,7 @@ static int __maybe_unused cros_ec_sensors_prepare(struct device *dev)
 
 static void __maybe_unused cros_ec_sensors_complete(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
 
 	if (st->curr_sampl_freq == 0)