On Sat, Mar 21, 2020 at 11:08:02AM +0200, Alexandru Ardelean wrote:
> This change uses the read_avail and '.info_mask_shared_by_type_available'
> modifier to set the available scale.
> Essentially, nothing changes to the driver's ABI.
>
> The main idea for this patch is to remove the AD7793 driver from
> checkpatch's radar. There have been about ~3 attempts to fix/break the
> 'in_voltage-voltage_scale_available' attribute, because checkpatch assumed
> it to be an arithmetic operation and people were trying to change that.
> +static int ad7793_read_avail(struct iio_dev *indio_dev,
> + struct iio_chan_spec const *chan,
> + const int **vals, int *type, int *length,
> + long mask)
> {
> struct ad7793_state *st = iio_priv(indio_dev);
>
> + switch (mask) {
> + case IIO_CHAN_INFO_SCALE:
> + *vals = (int *)st->scale_avail;
> + *type = IIO_VAL_INT_PLUS_NANO;
> + /* Values are stored in a 2D matrix */
> + *length = ARRAY_SIZE(st->scale_avail) * 2;
>
> + return IIO_AVAIL_LIST;
> + }
>
> + return -EINVAL;
Wouldn't be better move this under default case?
--
With Best Regards,
Andy Shevchenko
