diff options
| author | Abhash Jha <abhashkumarjha123@gmail.com> | 2024-09-14 23:42:44 +0530 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-10-05 12:09:14 +0100 |
| commit | 288ce72fb5fce63792d90b74bee4379cc2938ff9 (patch) | |
| tree | b5654b5c54ee675c22c92c27cef001d72a2728c7 | |
| parent | bd7057bb94887f475f1cbedbc77cede274be7547 (diff) | |
iio: light: ltr390: Suspend and Resume support
Added support for suspend and resume PM ops.
We suspend the sensor by clearing the ALS_UVS_EN bit in the MAIN CONTROL
register. And we resume it by setting that bit.
Signed-off-by: Abhash Jha <abhashkumarjha123@gmail.com>
Link: https://patch.msgid.link/20240914181246.504450-3-abhashkumarjha123@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/light/ltr390.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/iio/light/ltr390.c b/drivers/iio/light/ltr390.c index c50ea31e2316..6c2425f0ba22 100644 --- a/drivers/iio/light/ltr390.c +++ b/drivers/iio/light/ltr390.c @@ -18,6 +18,7 @@ * - Interrupt support */ +#include <linux/device.h> #include <linux/i2c.h> #include <linux/math.h> #include <linux/module.h> @@ -430,6 +431,26 @@ static int ltr390_probe(struct i2c_client *client) return devm_iio_device_register(dev, indio_dev); } +static int ltr390_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct ltr390_data *data = iio_priv(indio_dev); + + return regmap_clear_bits(data->regmap, LTR390_MAIN_CTRL, + LTR390_SENSOR_ENABLE); +} + +static int ltr390_resume(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct ltr390_data *data = iio_priv(indio_dev); + + return regmap_set_bits(data->regmap, LTR390_MAIN_CTRL, + LTR390_SENSOR_ENABLE); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(ltr390_pm_ops, ltr390_suspend, ltr390_resume); + static const struct i2c_device_id ltr390_id[] = { { "ltr390" }, { /* Sentinel */ } @@ -446,6 +467,7 @@ static struct i2c_driver ltr390_driver = { .driver = { .name = "ltr390", .of_match_table = ltr390_of_table, + .pm = pm_sleep_ptr(<r390_pm_ops), }, .probe = ltr390_probe, .id_table = ltr390_id, |