[PATCH V12 7/9] iio: imu: inv_icm42607: Add Accelerometer for icm42607

[Jonathan Cameron]

On Thu, 11 Jun 2026 15:26:04 -0500
Chris Morgan <macroalpha82 at gmail.com> wrote:

> From: Chris Morgan <macromorgan at hotmail.com>
> 
> Add icm42607 accelerometer sensor for icm42607.
> 
> Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
Really trivial stuff that I'd not have mentioned if you weren't
doing a v13 for other reasons.

> ---
>  drivers/iio/imu/inv_icm42607/Makefile         |   1 +
>  drivers/iio/imu/inv_icm42607/inv_icm42607.h   |  34 ++
>  .../iio/imu/inv_icm42607/inv_icm42607_accel.c | 376 ++++++++++++++++++
>  .../iio/imu/inv_icm42607/inv_icm42607_core.c  |  61 +++
>  4 files changed, 472 insertions(+)
>  create mode 100644 drivers/iio/imu/inv_icm42607/inv_icm42607_accel.c

> diff --git a/drivers/iio/imu/inv_icm42607/inv_icm42607_accel.c b/drivers/iio/imu/inv_icm42607/inv_icm42607_accel.c
> new file mode 100644
> index 000000000000..5e260ddad641
> --- /dev/null
> +++ b/drivers/iio/imu/inv_icm42607/inv_icm42607_accel.c
> @@ -0,0 +1,376 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (C) 2026 InvenSense, Inc.
> + */
> +
> +#include <linux/iio/iio.h>
> +#include <linux/mutex.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/regmap.h>
> +
> +#include "inv_icm42607.h"
> +#include "inv_icm42607_temp.h"
> +
> +#define INV_ICM42607_ACCEL_CHAN(_modifier, _index, _ext_info)		\
> +{									\
> +	.type = IIO_ACCEL,						\
> +	.modified = 1,							\
> +	.channel2 = _modifier,						\
> +	.info_mask_separate =						\
> +		BIT(IIO_CHAN_INFO_RAW),					\
> +	.info_mask_shared_by_type =					\
> +		BIT(IIO_CHAN_INFO_SCALE),				\
> +	.info_mask_shared_by_type_available =				\
> +		BIT(IIO_CHAN_INFO_SCALE),				\
> +	.info_mask_shared_by_all =					\
> +		BIT(IIO_CHAN_INFO_SAMP_FREQ),				\
> +	.info_mask_shared_by_all_available =				\
> +		BIT(IIO_CHAN_INFO_SAMP_FREQ),				\
Maybe for these, just go a bit long on line length (so 81 chars).
I don't really care either way!

> +	.scan_index = _index,						\
> +	.scan_type = {							\
> +		.sign = 's',						\
> +		.realbits = 16,						\
> +		.storagebits = 16,					\
> +		.endianness = IIO_BE,					\
> +	},								\
> +	.ext_info = _ext_info,						\
> +}


> +
> +static int inv_icm42607_accel_write_odr(struct iio_dev *indio_dev,
> +					int val, int val2)
> +{
> +	struct inv_icm42607_sensor_conf conf = INV_ICM42607_SENSOR_CONF_INIT;
> +	struct inv_icm42607_state *st = iio_device_get_drvdata(indio_dev);
> +	struct device *dev = regmap_get_device(st->map);
> +	unsigned int idx;
> +	int ret;
> +
> +	for (idx = 5; idx < ARRAY_SIZE(inv_icm42607_accel_odr); ++idx) {
> +		if (val == inv_icm42607_accel_odr[idx][0] &&
> +		    val2 == inv_icm42607_accel_odr[idx][1])
> +			break;
> +	}
> +	if (idx >= ARRAY_SIZE(inv_icm42607_accel_odr))
> +		return -EINVAL;
> +
> +	conf.odr = idx;
> +
> +	PM_RUNTIME_ACQUIRE_AUTOSUSPEND(dev, pm);
> +	ret = PM_RUNTIME_ACQUIRE_ERR(&pm);
> +	if (ret)
> +		return ret;
> +
> +	guard(mutex)(&st->lock);
> +
> +	ret = inv_icm42607_set_accel_conf(st, &conf, NULL);
> +	if (ret)
> +		return ret;

return inv_icm....

> +
> +	return 0;
> +}