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staging:iio:cdc:ad7150: Really basic regulator support.

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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@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210314181511.531414-20-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2021-03-14 18:15:06 +00:00
parent 18595e71c5
commit a9f8afe164
1 changed files with 21 additions and 0 deletions
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21
drivers/staging/iio/cdc/ad7150.c
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@ -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>
@ -533,11 +534,19 @@ 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));
@ -552,6 +561,18 @@ 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];