On Thu, Nov 28, 2024 at 08:32:46PM +0100, Vasileios Amoiridis wrote: > Add runtime power management to the device. ... > + struct bme680_data *data = iio_priv(indio_dev); > + struct device *dev = regmap_get_device(data->regmap); > + int ret; > + > + pm_runtime_get_sync(dev); > + ret = __bme680_read_raw(indio_dev, chan, val, val2, mask); Does it make sense to read something if previous call failed? Most likely you wanted to use ret = pm_runtime_resume_and_get(dev) if (ret) return ret; ret = __bme680_read_raw(indio_dev, chan, val, val2, mask); > + pm_runtime_mark_last_busy(dev); > + pm_runtime_put_autosuspend(dev); > + > + return ret; ... > +static int bme680_write_raw(struct iio_dev *indio_dev, > + struct iio_chan_spec const *chan, > + int val, int val2, long mask) Ditto. ... > +{ > + struct bme680_data *data = iio_priv(indio_dev); > + struct device *dev = regmap_get_device(data->regmap); > + > + pm_runtime_get_sync(dev); No error check? > + return 0; > +} -- With Best Regards, Andy Shevchenko