Re: [PATCH v5 3/6] iio: imu: inv_icm42607: Initialize gyro based on chip_info

[Andy Shevchenko]

On Fri, Oct 02, 2026 at 01:54:27PM +0200, Kanak Shilledar wrote:
> Update the chip_info struct with a new `has_gyro` property to support,
> devices which do not have gyro functionality. This is a precursor to the
> next commit which adds support for the Invensense, ICM-42370-P. It is
> similar to the existing device except it only has accelerometer. Check
> all operations related to gyro with the boolean.

...

>  	int ret;
>  
> -	val = FIELD_PREP(INV_ICM42607_PWR_MGMT0_GYRO_MODE_MASK, conf->gyro.mode);
> -	val |= FIELD_PREP(INV_ICM42607_PWR_MGMT0_ACCEL_MODE_MASK, conf->accel.mode);
> +	val = FIELD_PREP(INV_ICM42607_PWR_MGMT0_ACCEL_MODE_MASK, conf->accel.mode);
> +	if (st->hw->has_gyro)
> +		val |= FIELD_PREP(INV_ICM42607_PWR_MGMT0_GYRO_MODE_MASK, conf->gyro.mode);

Personally I found if-else slightly better as one needs no detour to understand
the whole value.

	if (st->hw->has_gyro)
		val = FIELD_PREP(INV_ICM42607_PWR_MGMT0_ACCEL_MODE_MASK, conf->accel.mode) |
		      FIELD_PREP(INV_ICM42607_PWR_MGMT0_GYRO_MODE_MASK, conf->gyro.mode);
	else
		val = FIELD_PREP(INV_ICM42607_PWR_MGMT0_ACCEL_MODE_MASK, conf->accel.mode);

>  	ret = regmap_write(st->map, INV_ICM42607_REG_PWR_MGMT0, val);
>  	if (ret)
>  		return ret;

...

> +	if (st->hw->has_gyro) {
> +		val = FIELD_PREP(INV_ICM42607_GYRO_CONFIG0_FS_SEL_MASK, conf->gyro.fs);
> +		val |= FIELD_PREP(INV_ICM42607_GYRO_CONFIG0_ODR_MASK, conf->gyro.odr);

No need to have two assignments, do it at once.

> +		ret = regmap_write(st->map, INV_ICM42607_REG_GYRO_CONFIG0, val);
> +		if (ret)
> +			return ret;
> +	}

-- 
With Best Regards,
Andy Shevchenko