Re: [PATCH v4 2/4] iio: imu: bmi270: Add scale and sampling frequency to BMI270 IMU

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On Sun, Oct 27, 2024 at 10:20:23AM -0700, Justin Weiss wrote:
> Add read and write functions and create _available entries.

...

> +static int bmi270_set_scale(struct bmi270_data *data,
> +			    int chan_type, int uscale)

There is available space in the previous line, (And I would even join them
despite being 83 characters long.)

...

> +static int bmi270_get_scale(struct bmi270_data *bmi270_device,
> +			    int chan_type, int *uscale)

Ditto (for chan_type).

...

> +static int bmi270_set_odr(struct bmi270_data *data, int chan_type,
> +			  int odr, int uodr)

Ditto.

...

> +	for (i = 0; i < bmi270_odr_item.num; i++) {
> +		if (bmi270_odr_item.tbl[i].odr != odr ||
> +		    bmi270_odr_item.tbl[i].uodr != uodr)
> +			continue;
> +
> +		return regmap_update_bits(data->regmap, reg, mask,
> +					  bmi270_odr_item.vals[i]);
> +	}
> +
> +	return -EINVAL;

Wouldn't be better to use regular patterns, i.e. checking for errors first?

	for (i = 0; i < bmi270_odr_item.num; i++) {
		if (bmi270_odr_item.tbl[i].odr == odr ||
		    bmi270_odr_item.tbl[i].uodr == uodr)
			break;
	}
	if (i == bmi270_odr_item.num)
		return -EINVAL;

	return regmap_update_bits(data->regmap, reg, mask, bmi270_odr_item.vals[i]);

...

> +static int bmi270_get_odr(struct bmi270_data *data, int chan_type,
> +			  int *odr, int *uodr)

As per above.

> +	for (i = 0; i < bmi270_odr_item.num; i++) {
> +		if (val != bmi270_odr_item.vals[i])
> +			continue;
> +
> +		*odr = bmi270_odr_item.tbl[i].odr;
> +		*uodr = bmi270_odr_item.tbl[i].uodr;
> +		return 0;
> +	}
> +
> +	return -EINVAL;

As per above.

-- 
With Best Regards,
Andy Shevchenko






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