diff options
| author | Gustavo Silva <gustavograzs@gmail.com> | 2024-06-04 19:57:29 -0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-06-13 19:19:26 +0100 |
| commit | d12b7d6ede9be336fb7a308c2ad9f4e1d8d817ad (patch) | |
| tree | 9ea24707daee6a03a7e30b9e38c8a7f15d64cffd /drivers | |
| parent | 0fc26596b4b3619a47ae05e3ed89e017fa9149b4 (diff) | |
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: Gustavo Silva <gustavograzs@gmail.com>
Link: https://lore.kernel.org/r/20240604225747.7212-6-gustavograzs@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/chemical/ens160.h | 3 | ||||
| -rw-r--r-- | drivers/iio/chemical/ens160_core.c | 23 | ||||
| -rw-r--r-- | drivers/iio/chemical/ens160_i2c.c | 1 | ||||
| -rw-r--r-- | drivers/iio/chemical/ens160_spi.c | 1 |
4 files changed, 28 insertions, 0 deletions
diff --git a/drivers/iio/chemical/ens160.h b/drivers/iio/chemical/ens160.h index e6cc0987aed0..f9f0575ce55d 100644 --- a/drivers/iio/chemical/ens160.h +++ b/drivers/iio/chemical/ens160.h @@ -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 diff --git a/drivers/iio/chemical/ens160_core.c b/drivers/iio/chemical/ens160_core.c index 3da3b10950dd..c1aa3b498d3b 100644 --- a/drivers/iio/chemical/ens160_core.c +++ b/drivers/iio/chemical/ens160_core.c @@ -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; diff --git a/drivers/iio/chemical/ens160_i2c.c b/drivers/iio/chemical/ens160_i2c.c index f3fb45b75f29..57a189a4c257 100644 --- a/drivers/iio/chemical/ens160_i2c.c +++ b/drivers/iio/chemical/ens160_i2c.c @@ -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, diff --git a/drivers/iio/chemical/ens160_spi.c b/drivers/iio/chemical/ens160_spi.c index 90e1e8386bdb..10e4f5fd0f45 100644 --- a/drivers/iio/chemical/ens160_spi.c +++ b/drivers/iio/chemical/ens160_spi.c @@ -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, |