Commit 3145229f authored by Grégor Boirie's avatar Grégor Boirie Committed by Jonathan Cameron

iio:pressure:ms5611: power regulator support

Add support for an optional regulator which, if found into device-tree,
will power on device at probing time.
The regulator is declared into ms5611 DTS entry as a "vdd-supply" property.
Signed-off-by: default avatarGregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent eac635eb
...@@ -16,6 +16,7 @@ ...@@ -16,6 +16,7 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/iio/iio.h> #include <linux/iio/iio.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/regulator/consumer.h>
#include <linux/iio/buffer.h> #include <linux/iio/buffer.h>
#include <linux/iio/triggered_buffer.h> #include <linux/iio/triggered_buffer.h>
...@@ -290,6 +291,18 @@ static const struct iio_info ms5611_info = { ...@@ -290,6 +291,18 @@ static const struct iio_info ms5611_info = {
static int ms5611_init(struct iio_dev *indio_dev) static int ms5611_init(struct iio_dev *indio_dev)
{ {
int ret; int ret;
struct regulator *vdd = devm_regulator_get(indio_dev->dev.parent,
"vdd");
/* Enable attached regulator if any. */
if (!IS_ERR(vdd)) {
ret = regulator_enable(vdd);
if (ret) {
dev_err(indio_dev->dev.parent,
"failed to enable Vdd supply: %d\n", ret);
return ret;
}
}
ret = ms5611_reset(indio_dev); ret = ms5611_reset(indio_dev);
if (ret < 0) if (ret < 0)
......
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