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authorVignesh R <vigneshr@ti.com>2015-03-31 14:12:36 +0300
committerJonathan Cameron <jic23@kernel.org>2015-04-09 17:13:16 +0300
commitdee1f55057aeb61839f985b2cf7fff82789335d5 (patch)
treea21d337d4a7582c84077e565734b1717cf9a8b56 /drivers/iio/adc/ti_am335x_adc.c
parentd02e0f8f62f786e9291caf4633e20724c2ab7f99 (diff)
downloadlinux-dee1f55057aeb61839f985b2cf7fff82789335d5.tar.xz
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>
Diffstat (limited to 'drivers/iio/adc/ti_am335x_adc.c')
-rw-r--r--drivers/iio/adc/ti_am335x_adc.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index a0e7161f040c..42e444044ea5 100644
--- 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);