Re: [PATCH v4 2/2] iio: light: opt3001: add support for TI's opt3002 light sensor

[Jonathan Cameron <jic23@kernel.org>]

On Thu, 3 Oct 2024 14:22:17 +0200
Emil Gedenryd <emil.gedenryd@axis.com> wrote:

> TI's opt3002 light sensor shares most properties with the opt3001
> model, with the exception of supporting a wider spectrum range.
> 
> Add support for TI's opt3002 by extending the TI opt3001 driver.
> 
> Datasheet: https://www.ti.com/product/OPT3002
> Signed-off-by: Emil Gedenryd <emil.gedenryd@axis.com>
> ---
>  drivers/iio/light/Kconfig   |   2 +-
>  drivers/iio/light/opt3001.c | 189 ++++++++++++++++++++++++++++++++++++--------
>  2 files changed, 157 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
> index b68dcc1fbaca..c35bf962dae6 100644
> --- a/drivers/iio/light/Kconfig
> +++ b/drivers/iio/light/Kconfig
> @@ -461,7 +461,7 @@ config OPT3001
>  	depends on I2C
>  	help
>  	  If you say Y or M here, you get support for Texas Instruments
> -	  OPT3001 Ambient Light Sensor.
> +	  OPT3001 Ambient Light Sensor, OPT3002 Light-to-Digital Sensor.
>  
>  	  If built as a dynamically linked module, it will be called
>  	  opt3001.
> diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
> index 176e54bb48c3..ff7fc0d4b08f 100644
> --- a/drivers/iio/light/opt3001.c
> +++ b/drivers/iio/light/opt3001.c
> @@ -70,6 +70,35 @@
>  #define OPT3001_RESULT_READY_SHORT	150
>  #define OPT3001_RESULT_READY_LONG	1000
>  
> +struct opt3001_scale {
> +	int	val;
> +	int	val2;
> +};
> +
> +struct opt3001_chip_info {
> +	const struct iio_chan_spec (*channels)[2];
> +	enum iio_chan_type chan_type;
> +	int num_channels;
> +
> +	const struct opt3001_scale (*scales)[12];
This doesn't compile for me as one of the two options only
has 11 entries.  You could either force them to be 12
entries each or use a pointer without the size and
add a num_scales entry in here.

Jonathan