[PATCH 4/8] iio: adc: ad7292: Switch from of specific to fwnode property handling

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

This reduces the wrong of device tree only IIO drivers that might
be copied by converting over this simple case.
Makes use of the new _scoped() handling to automatically release
the fwnode_handle on early exit from the loop.

Cc: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/adc/ad7292.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
index cccacec5db6d..6aadd14f459d 100644
--- a/drivers/iio/adc/ad7292.c
+++ b/drivers/iio/adc/ad7292.c
@@ -8,7 +8,8 @@
 #include <linux/bitfield.h>
 #include <linux/device.h>
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spi/spi.h>
 
@@ -260,7 +261,6 @@ static int ad7292_probe(struct spi_device *spi)
 {
 	struct ad7292_state *st;
 	struct iio_dev *indio_dev;
-	struct device_node *child;
 	bool diff_channels = false;
 	int ret;
 
@@ -305,12 +305,11 @@ static int ad7292_probe(struct spi_device *spi)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &ad7292_info;
 
-	for_each_available_child_of_node(spi->dev.of_node, child) {
-		diff_channels = of_property_read_bool(child, "diff-channels");
-		if (diff_channels) {
-			of_node_put(child);
+	device_for_each_child_node_scoped(&spi->dev, child) {
+		diff_channels = fwnode_property_read_bool(child,
+							  "diff-channels");
+		if (diff_channels)
 			break;
-		}
 	}
 
 	if (diff_channels) {
-- 
2.43.2