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> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210207154623.433442-20-jic23@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 39d70805d2a6..30abfacda074 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]; -- 2.30.2
