iio: adc: ti_am335x_adc: refactor DT parsing into a function

Refactor DT parsing into a separate function from probe() to
help addition of more DT parameters later.

No functional changes.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index a0e7161f040c91daca74a469d27ff641be9ea915..42e444044ea5b1b6a97d03ae6a351da3b996fe83 100644 (file)
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -395,16 +395,30 @@ static const struct iio_info tiadc_info = {
        .driver_module = THIS_MODULE,
 };
 
+static int tiadc_parse_dt(struct platform_device *pdev,
+                         struct tiadc_device *adc_dev)
+{
+       struct device_node *node = pdev->dev.of_node;
+       struct property *prop;
+       const __be32 *cur;
+       int channels = 0;
+       u32 val;
+
+       of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) {
+               adc_dev->channel_line[channels] = val;
+               channels++;
+       }
+
+       adc_dev->channels = channels;
+       return 0;
+}
+
 static int tiadc_probe(struct platform_device *pdev)
 {
        struct iio_dev          *indio_dev;
        struct tiadc_device     *adc_dev;
        struct device_node      *node = pdev->dev.of_node;
-       struct property         *prop;
-       const __be32            *cur;
        int                     err;
-       u32                     val;
-       int                     channels = 0;
 
        if (!node) {
                dev_err(&pdev->dev, "Could not find valid DT data.\n");
@@ -420,12 +434,7 @@ static int tiadc_probe(struct platform_device *pdev)
        adc_dev = iio_priv(indio_dev);
 
        adc_dev->mfd_tscadc = ti_tscadc_dev_get(pdev);
-
-       of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) {
-               adc_dev->channel_line[channels] = val;
-               channels++;
-       }
-       adc_dev->channels = channels;
+       tiadc_parse_dt(pdev, adc_dev);
 
        indio_dev->dev.parent = &pdev->dev;
        indio_dev->name = dev_name(&pdev->dev);