On Fri, 3 Jan 2020 17:29:08 -0800
Matt Ranostay <matt.ranostay@xxxxxxxxxxxx> wrote:
> Add helper function to detect the number of channels to output
> in trigger handler. This is based on IIO_TIMESTAMP channel being the
> delimiter between input and output channels.
>
> Signed-off-by: Matt Ranostay <matt.ranostay@xxxxxxxxxxxx>
Applied,
Thanks,
Jonathan
> ---
> drivers/iio/chemical/atlas-sensor.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
> index 99095c80531b..2f0a6fed2589 100644
> --- a/drivers/iio/chemical/atlas-sensor.c
> +++ b/drivers/iio/chemical/atlas-sensor.c
> @@ -86,6 +86,16 @@ static const struct regmap_config atlas_regmap_config = {
> .val_bits = 8,
> };
>
> +static int atlas_buffer_num_channels(const struct iio_chan_spec *spec)
> +{
> + int idx = 0;
> +
> + for (; spec->type != IIO_TIMESTAMP; spec++)
> + idx++;
> +
> + return idx;
> +};
> +
> static const struct iio_chan_spec atlas_ph_channels[] = {
> {
> .type = IIO_PH,
> @@ -354,11 +364,12 @@ static irqreturn_t atlas_trigger_handler(int irq, void *private)
> struct iio_poll_func *pf = private;
> struct iio_dev *indio_dev = pf->indio_dev;
> struct atlas_data *data = iio_priv(indio_dev);
> + int channels = atlas_buffer_num_channels(data->chip->channels);
> int ret;
>
> ret = regmap_bulk_read(data->regmap, data->chip->data_reg,
> (u8 *) &data->buffer,
> - sizeof(__be32) * (data->chip->num_channels - 2));
> + sizeof(__be32) * channels);
>
> if (!ret)
> iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
