Dear Hector Palacios,
> The LRADC virtual channels have an 18 bit field to store the sum of up
> to 2^5 accumulated samples. The read_raw function however only operates
> over a single sample (12 bit resolution).
> In order to use this field for scaling operations, we need it to be the
> exact resolution value of the LRADC.
How would this work once the accumulation is supported?
> Signed-off-by: Hector Palacios <hector.palacios@xxxxxxxx>
> ---
> drivers/staging/iio/adc/mxs-lradc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/iio/adc/mxs-lradc.c
> b/drivers/staging/iio/adc/mxs-lradc.c index 163c638..d65a594 100644
> --- a/drivers/staging/iio/adc/mxs-lradc.c
> +++ b/drivers/staging/iio/adc/mxs-lradc.c
> @@ -822,7 +822,7 @@ static const struct iio_buffer_setup_ops
> mxs_lradc_buffer_ops = { .channel = (idx),
\
> .scan_type = { \
> .sign = 'u', \
> - .realbits = 18, \
> + .realbits = 12, \
> .storagebits = 32, \
> }, \
> }
Best regards,
Marek Vasut
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
