Re: [PATCH] iio: light: apds9306: Fix input arguments to in_range()

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On Sat, 27 Apr 2024 18:39:14 +0930
Subhajit Ghosh <subhajit.ghosh@xxxxxxxxxxxxxx> wrote:

> Third input argument to in_range() function requires the number of
> values in range, not the last value in that range. Update macro for
> persistence and adaptive threshold to reflect number of values
> supported instead of the maximum values supported.
> 
> Fixes: 620d1e6c7a3f ("iio: light: Add support for APDS9306 Light Sensor")
> Signed-off-by: Subhajit Ghosh <subhajit.ghosh@xxxxxxxxxxxxxx>
Applied to the togreg branch of iio.git. Pushed out initially as testing
for 0-day to take a first look.

Thanks,

Jonathan

> ---
>  drivers/iio/light/apds9306.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/iio/light/apds9306.c b/drivers/iio/light/apds9306.c
> index 46c647ccd44c..d6627b3e6000 100644
> --- a/drivers/iio/light/apds9306.c
> +++ b/drivers/iio/light/apds9306.c
> @@ -55,8 +55,8 @@
>  #define APDS9306_ALS_DATA_STAT_MASK	BIT(3)
>  
>  #define APDS9306_ALS_THRES_VAL_MAX	(BIT(20) - 1)
> -#define APDS9306_ALS_THRES_VAR_VAL_MAX	(BIT(3) - 1)
> -#define APDS9306_ALS_PERSIST_VAL_MAX	(BIT(4) - 1)
> +#define APDS9306_ALS_THRES_VAR_NUM_VALS	8
> +#define APDS9306_ALS_PERSIST_NUM_VALS	16
>  #define APDS9306_ALS_READ_DATA_DELAY_US	(20 * USEC_PER_MSEC)
>  #define APDS9306_NUM_REPEAT_RATES	7
>  #define APDS9306_INT_SRC_CLEAR	0
> @@ -726,7 +726,7 @@ static int apds9306_event_period_get(struct apds9306_data *data, int *val)
>  	if (ret)
>  		return ret;
>  
> -	if (!in_range(period, 0, APDS9306_ALS_PERSIST_VAL_MAX))
> +	if (!in_range(period, 0, APDS9306_ALS_PERSIST_NUM_VALS))
>  		return -EINVAL;
>  
>  	*val = period;
> @@ -738,7 +738,7 @@ static int apds9306_event_period_set(struct apds9306_data *data, int val)
>  {
>  	struct apds9306_regfields *rf = &data->rf;
>  
> -	if (!in_range(val, 0, APDS9306_ALS_PERSIST_VAL_MAX))
> +	if (!in_range(val, 0, APDS9306_ALS_PERSIST_NUM_VALS))
>  		return -EINVAL;
>  
>  	return regmap_field_write(rf->int_persist_val, val);
> @@ -796,7 +796,7 @@ static int apds9306_event_thresh_adaptive_get(struct apds9306_data *data, int *v
>  	if (ret)
>  		return ret;
>  
> -	if (!in_range(thr_adpt, 0, APDS9306_ALS_THRES_VAR_VAL_MAX))
> +	if (!in_range(thr_adpt, 0, APDS9306_ALS_THRES_VAR_NUM_VALS))
>  		return -EINVAL;
>  
>  	*val = thr_adpt;
> @@ -808,7 +808,7 @@ static int apds9306_event_thresh_adaptive_set(struct apds9306_data *data, int va
>  {
>  	struct apds9306_regfields *rf = &data->rf;
>  
> -	if (!in_range(val, 0, APDS9306_ALS_THRES_VAR_VAL_MAX))
> +	if (!in_range(val, 0, APDS9306_ALS_THRES_VAR_NUM_VALS))
>  		return -EINVAL;
>  
>  	return regmap_field_write(rf->int_thresh_var_val, val);
> 
> base-commit: b80ad8e3cd2712b78b98804d1f59199680d8ed91





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