Commit d12b7d6e authored by Gustavo Silva's avatar Gustavo Silva Committed by Jonathan Cameron
Browse files

iio: chemical: ens160: add power management support 



ENS160 supports a deep sleep mode for minimal power consumption.
Use it to add PM sleep capability to the driver.

Signed-off-by: default avatarGustavo Silva <gustavograzs@gmail.com>
Link: https://lore.kernel.org/r/20240604225747.7212-6-gustavograzs@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 0fc26596

drivers/iio/chemical/ens160.h

+3 −0
Original line number Diff line number Diff line
@@ -4,4 +4,7 @@ 


int devm_ens160_core_probe(struct device *dev, struct regmap *regmap, int irq,

			   const char *name);



extern const struct dev_pm_ops ens160_pm_ops;



#endif

drivers/iio/chemical/ens160_core.c

+23 −0
Original line number Diff line number Diff line
@@ -220,6 +220,29 @@ static const struct iio_info ens160_info = { 
	.read_raw = ens160_read_raw,

};



static int ens160_suspend(struct device *dev)

{

	struct iio_dev *indio_dev = dev_get_drvdata(dev);

	struct ens160_data *data = iio_priv(indio_dev);



	return ens160_set_mode(data, ENS160_REG_MODE_DEEP_SLEEP);

}



static int ens160_resume(struct device *dev)

{

	struct iio_dev *indio_dev = dev_get_drvdata(dev);

	struct ens160_data *data = iio_priv(indio_dev);

	int ret;



	ret = ens160_set_mode(data, ENS160_REG_MODE_IDLE);

	if (ret)

		return ret;



	return ens160_set_mode(data, ENS160_REG_MODE_STANDARD);

}

EXPORT_NS_SIMPLE_DEV_PM_OPS(ens160_pm_ops, ens160_suspend, ens160_resume,

			    IIO_ENS160);



static irqreturn_t ens160_trigger_handler(int irq, void *p)

{

	struct iio_poll_func *pf = p;

drivers/iio/chemical/ens160_i2c.c

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ static struct i2c_driver ens160_i2c_driver = { 
	.driver = {

		.name		= "ens160",

		.of_match_table	= ens160_of_i2c_match,

		.pm		= pm_sleep_ptr(&ens160_pm_ops),

	},

	.probe = ens160_i2c_probe,

	.id_table = ens160_i2c_id,

drivers/iio/chemical/ens160_spi.c

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ static struct spi_driver ens160_spi_driver = { 
	.driver = {

		.name	= "ens160",

		.of_match_table = ens160_spi_of_match,

		.pm = pm_sleep_ptr(&ens160_pm_ops),

	},

	.probe		= ens160_spi_probe,

	.id_table	= ens160_spi_id,