<snip>
>>> +static int apds9960_read_raw(struct iio_dev *indio_dev,
>>> + struct iio_chan_spec const *chan,
>>> + int *val, int *val2, long mask)
>>> +{
>>> + struct apds9960_data *data = iio_priv(indio_dev);
>>> + u16 buf;
>>> + int ret = -EINVAL;
>>> +
>>> + if (data->gesture_mode_running)
>>> + return -EBUSY;
>>> +
>>> + switch (mask) {
>>> + case IIO_CHAN_INFO_RAW:
>>> + apds9960_set_power_state(data, true);
>>> + switch (chan->type) {
>>> + case IIO_PROXIMITY:
>>> + if (chan->scan_index == -1) {
>>> + ret = regmap_read(data->regmap,
>>> + chan->address, val);
>>> + if (!ret)
>>> + ret = IIO_VAL_INT;
>>> + } else {
>> If the channels don't have explicity channel mask entries for a polled
>> read then there will be no way of reading them anyway except through the
>> buffered interface.
>
> What context do you mean by channel mask entries?
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) - or the processed variant.
>
>>> + /*
>>> + * Cannot poll the GESTURE channels which are
>>> + * just usable with triggered buffers.
>>> + */
>>> + ret = -EBUSY;
>>> + }
>>> + break;
<snip>
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