On 19/02/15 23:02, Kevin Tsai wrote: > Added Power Management Support. > > Signed-off-by: Kevin Tsai <ktsai@xxxxxxxxxxxxxxxx> Applied to the togreg branch of iio.git - initially pushed out as testing for the autobuilders to play. Thanks, Jonathan > --- > v2: > Added CONFIG_PM_SLEEP to suspend/resume functions to fix the build warning > when CONFIG_PM_SLEEP is not selected. > > v1: > Added Power Management support. > > drivers/iio/light/cm3232.c | 36 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c > index 90e3519..39c8d99 100644 > --- a/drivers/iio/light/cm3232.c > +++ b/drivers/iio/light/cm3232.c > @@ -378,6 +378,39 @@ static const struct i2c_device_id cm3232_id[] = { > {} > }; > > +#ifdef CONFIG_PM_SLEEP > +static int cm3232_suspend(struct device *dev) > +{ > + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); > + struct cm3232_chip *chip = iio_priv(indio_dev); > + struct i2c_client *client = chip->client; > + int ret; > + > + chip->regs_cmd |= CM3232_CMD_ALS_DISABLE; > + ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD, > + chip->regs_cmd); > + > + return ret; > +} > + > +static int cm3232_resume(struct device *dev) > +{ > + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); > + struct cm3232_chip *chip = iio_priv(indio_dev); > + struct i2c_client *client = chip->client; > + int ret; > + > + chip->regs_cmd &= ~CM3232_CMD_ALS_DISABLE; > + ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD, > + chip->regs_cmd | CM3232_CMD_ALS_RESET); > + > + return ret; > +} > + > +static const struct dev_pm_ops cm3232_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(cm3232_suspend, cm3232_resume)}; > +#endif > + > MODULE_DEVICE_TABLE(i2c, cm3232_id); > > static const struct of_device_id cm3232_of_match[] = { > @@ -390,6 +423,9 @@ static struct i2c_driver cm3232_driver = { > .name = "cm3232", > .owner = THIS_MODULE, > .of_match_table = of_match_ptr(cm3232_of_match), > +#ifdef CONFIG_PM_SLEEP > + .pm = &cm3232_pm_ops, > +#endif > }, > .id_table = cm3232_id, > .probe = cm3232_probe, > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html