From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Given DT docs will include regulators, lets just turn them on and
off with driver probe() and remove().
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
drivers/staging/iio/cdc/ad7150.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index a2aae370c231..0bc8c7a99883 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -12,6 +12,7 @@
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/iio/iio.h>
@@ -538,11 +539,19 @@ static const struct iio_info ad7150_info_no_irq = {
.read_raw = &ad7150_read_raw,
};
+static void ad7150_reg_disable(void *data)
+{
+ struct regulator *reg = data;
+
+ regulator_disable(reg);
+}
+
static int ad7150_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct ad7150_chip_info *chip;
struct iio_dev *indio_dev;
+ struct regulator *reg;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
@@ -557,6 +566,18 @@ static int ad7150_probe(struct i2c_client *client,
indio_dev->modes = INDIO_DIRECT_MODE;
+ reg = devm_regulator_get(&client->dev, "vdd");
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ ret = regulator_enable(reg);
+ if (ret)
+ return ret;
+
+ ret = devm_add_action_or_reset(&client->dev, ad7150_reg_disable, reg);
+ if (ret)
+ return ret;
+
chip->interrupts[0] = fwnode_irq_get(dev_fwnode(&client->dev), 0);
if (chip->interrupts[0] < 0)
return chip->interrupts[0];
--
2.30.0
