Quoting Gwendal Grignou (2021-03-31 11:22:22)
> Check input to be sure it matches Semtech sx9310 specification and
> can fit into debounce register.
> Compare argument writen to thresh_.._period with read from same
> sysfs attribute:
>
> Before: Afer:
> write | read write | read
> -1 | 8 -1 fails: -EINVAL
> 0 | 8 0 | 0
> 1 | 0 1 | 0
> 2..15 | 2^log2(N) 2..15 | 2^log2(N)
> 16 | 0 >= 16 fails: -EINVAL
>
> Fixes: 1b6872015f0b ("iio: sx9310: Support setting debounce values")
> Signed-off-by: Gwendal Grignou <gwendal@xxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
