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

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

drivers/iio/pressure/ms5611_core.c

+13 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/module.h>

#include <linux/iio/iio.h>

#include <linux/delay.h>

#include <linux/regulator/consumer.h>



#include <linux/iio/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)

{

	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);

	if (ret < 0)