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: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
parent
eac635ebad
commit
3145229f91
drivers/iio/pressure
|
@ -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 = {
|
||||||
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)
|
||||||
|
|
Loading…
Reference in New Issue