On Mon, 2024-05-27 at 20:02 +0300, Dumitru Ceclan via B4 Relay wrote: > From: Dumitru Ceclan <dumitru.ceclan@xxxxxxxxxx> > > Move configurations regarding number of channels from > *_fw_parse_device_config to *_fw_parse_channel_config. > > Suggested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > Link: https://lore.kernel.org/all/20240303162148.3ad91aa2@jic23-huawei/ > Reviewed-by: David Lechner <dlechner@xxxxxxxxxxxx> > Signed-off-by: Dumitru Ceclan <dumitru.ceclan@xxxxxxxxxx> > --- Reviewed-by: Nuno Sa <nuno.sa@xxxxxxxxxx> > drivers/iio/adc/ad7173.c | 29 +++++++++++++++++------------ > 1 file changed, 17 insertions(+), 12 deletions(-) > > diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c > index ebacdacf64b9..9e507e2c66f0 100644 > --- a/drivers/iio/adc/ad7173.c > +++ b/drivers/iio/adc/ad7173.c > @@ -913,7 +913,23 @@ static int ad7173_fw_parse_channel_config(struct iio_dev > *indio_dev) > struct device *dev = indio_dev->dev.parent; > struct iio_chan_spec *chan_arr, *chan; > unsigned int ain[2], chan_index = 0; > - int ref_sel, ret; > + int ref_sel, ret, num_channels; > + > + num_channels = device_get_child_node_count(dev); > + > + if (st->info->has_temp) > + num_channels++; > + > + if (num_channels == 0) > + return dev_err_probe(dev, -ENODATA, "No channels specified\n"); > + > + if (num_channels > st->info->num_channels) > + return dev_err_probe(dev, -EINVAL, > + "Too many channels specified. Maximum is %d, not including > temperature channel if supported.\n", > + st->info->num_channels); > + > + indio_dev->num_channels = num_channels; > + st->num_channels = num_channels; > > chan_arr = devm_kcalloc(dev, sizeof(*indio_dev->channels), > st->num_channels, GFP_KERNEL); > @@ -1008,7 +1024,6 @@ static int ad7173_fw_parse_device_config(struct iio_dev > *indio_dev) > { > struct ad7173_state *st = iio_priv(indio_dev); > struct device *dev = indio_dev->dev.parent; > - unsigned int num_channels; > int ret; > > st->regulators[0].supply = > ad7173_ref_sel_str[AD7173_SETUP_REF_SEL_EXT_REF]; > @@ -1067,16 +1082,6 @@ static int ad7173_fw_parse_device_config(struct iio_dev > *indio_dev) > > ad7173_sigma_delta_info.irq_line = ret; > > - num_channels = device_get_child_node_count(dev); > - > - if (st->info->has_temp) > - num_channels++; > - > - if (num_channels == 0) > - return dev_err_probe(dev, -ENODATA, "No channels specified\n"); > - indio_dev->num_channels = num_channels; > - st->num_channels = num_channels; > - > return ad7173_fw_parse_channel_config(indio_dev); > } > >
