linux-kernel - Re: [PATCH 3/3] iio: light: bu27008: Fix intensity data type

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Date:   Sat, 17 Jun 2023 20:35:14 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Matti Vaittinen <mazziesaccount@...il.com>
Cc:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] iio: light: bu27008: Fix intensity data type

On Tue, 13 Jun 2023 12:35:12 +0300
Matti Vaittinen <mazziesaccount@...il.com> wrote:

> The intensity data from bu27008 is unsigned. The type of the scan data
> was incorrectly marked as signed resulting large intensity values to be
> interpreted as negative ones.
> 
> Fix the scan data type.
> 
> Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
Applied series to the fixes-togreg branch of iio.git (which now includes
this as it's upstream in char-misc-next)  Added fixes tags where needed given
the ids are now stable

Thanks,
Jonathan

> 
> ---
> Fixes tag not added because AFACS the bu27008 is not yet in any releases.
> ---
>  drivers/iio/light/rohm-bu27008.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/light/rohm-bu27008.c b/drivers/iio/light/rohm-bu27008.c
> index 80eb14ea8193..b50bf8973d9a 100644
> --- a/drivers/iio/light/rohm-bu27008.c
> +++ b/drivers/iio/light/rohm-bu27008.c
> @@ -190,7 +190,7 @@ static const struct iio_itime_sel_mul bu27008_itimes[] = {
>  	.address = BU27008_REG_##data##_LO,					\
>  	.scan_index = BU27008_##color,						\
>  	.scan_type = {								\
> -		.sign = 's',							\
> +		.sign = 'u',							\
>  		.realbits = 16,							\
>  		.storagebits = 16,						\
>  		.endianness = IIO_LE,						\