Re: [PATCH v2 1/3] iio: light: opt3001: add missing full-scale range value

From: Jonathan Cameron
Date: Sat Sep 14 2024 - 12:06:45 EST


On Fri, 13 Sep 2024 11:57:02 +0200
Emil Gedenryd <emil.gedenryd@xxxxxxxx> wrote:

> The opt3001 driver uses predetermined full-scale range values to
> determine what exponent to use for event trigger threshold values.
> The problem is that one of the values specified in the datasheet is
> missing from the implementation. This causes larger values to be
> scaled down to an incorrect exponent, effectively reducing the
> maximum settable threshold value by a factor of 2.
>
> Add missing full-scale range array value.
>
> Fixes: 94a9b7b1809f ("iio: light: add support for TI's opt3001 light sensor")
> Signed-off-by: Emil Gedenryd <emil.gedenryd@xxxxxxxx>
Applied to the fixes-togreg branch of iio.git and marked for stable.
I'll probably send a pull request with this in shortly after rc1.

Jonathan

> ---
> drivers/iio/light/opt3001.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
> index 887c4b776a86..176e54bb48c3 100644
> --- a/drivers/iio/light/opt3001.c
> +++ b/drivers/iio/light/opt3001.c
> @@ -138,6 +138,10 @@ static const struct opt3001_scale opt3001_scales[] = {
> .val = 20966,
> .val2 = 400000,
> },
> + {
> + .val = 41932,
> + .val2 = 800000,
> + },
> {
> .val = 83865,
> .val2 = 600000,
>