On Tue, Jul 5, 2022 at 2:31 PM Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> wrote: > > The read on in_illuminance_input keeps at 0 after system sleep. > > So add proper suspend and resume callback to make the sensor keep > working after system sleep. ... > +static int cm32181_resume(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct cm32181_chip *cm32181 = iio_priv(i2c_get_clientdata(client)); Simply device_get_drvdata(dev) ? > + return i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD, > + cm32181->conf_regs[CM32181_REG_ADDR_CMD]); > +} -- With Best Regards, Andy Shevchenko