iio: imu: st_lsm6dsx: add support to ASM330LHHXG1

Add support to STM ASM330LHHXG1 (accelerometer and gyroscope) Mems
sensor.
The ASM330LHHXG1 sensor can use LSM6DSR as fallback device since LSM6DSR
implements all the ASM330LHHXG1 features currently implemented in
st_lsm6dsx.

Link: https://www.st.com/resource/en/datasheet/asm330lhhxg1.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/e3dbe4720cdf407d0152e93b1331306a8c7f5df3.1706961432.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to ASM330LHB

Add support to STM ASM330LHB (acc + gyro) automotive Mems sensor.
The ASM330LHB sensor can use ASM330LHH as fallback device since it
implements all the ASM330LHB features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/asm330lhb.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a1d675457da7aa9e979d8cabea410e942e015e71.1678100533.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to ISM330IS

Add support to STM ISM330IS (accelerometer and gyroscope) Mems sensor.
The ISM330IS sensor can use LSM6DSO16IS as fallback device since it
implements all the ISM330IS features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/ism330is.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4cd1614060e06f49cd92f5930d8fd40117c07920.1669279604.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSO16IS

Add support to STM LSM6DSO16IS (accelerometer and gyroscope) Mems sensor.

Datasheet: https://www.st.com/resource/en/datasheet/lsm6dso16is.pdf
Tested-by: Mario Tesi <mario.tesi@st.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/df6a9d4653cd69f7204190f8b6a9b618fd48bd23.1668605631.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSV16X

Add support to STM LSM6DSV16X (accelerometer and gyroscope) Mems sensor.
The LSM6DSV16X sensor can use LSM6DSV as fallback device since it
implements all the LSM6DSV16X features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/lsm6dsv16x.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/284b251f861dff30c399e5736a843c8e3a497249.1667745215.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSV

Add support to STM LSM6DSV (accelerometer and gyroscope)
Mems sensor.

Datasheet: https://www.st.com/resource/en/datasheet/lsm6dsv.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/aad879e7af0fe583bbf043a2b93e32fade79fa19.1667216004.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSTX

Add support to STM LSM6DSTX (acc + gyro) Mems sensor.
The LSM6DSTX sensor can use LSM6DST as fallback device since it
implements all the LSM6DSTX features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/lsm6dstx.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/573a232b0f320b2ec92c56fa24393cfb275183fb.1663262890.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: lsm6dsx: Move exported symbols to the IIO_LSM6DSX namespace

Avoid unnecessary pollution of the global symbol namespace by
moving library functions in to a specific namespace and import
that into the drivers that make use of the functions.

For more info: https://lwn.net/Articles/760045/

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220220181522.541718-9-jic23@kernel.org
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220604161223.461847-6-jic23@kernel.org

iio: imu: lsm6dsx: Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS()

These new functions move the burden of removing unused code when
CONFIG_PM_SLEEP is not defined onto the compiler rather than requiring
the use of CONFIG_PM guards and similar.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220220181522.541718-8-jic23@kernel.org
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220604161223.461847-5-jic23@kernel.org

iio: imu: st_lsm6dsx: add support to ASM330LHHX

Add support to STM ASM330LHHX (acc + gyro) automotive Mems sensor.
The ASM330LHHX sensor can use LSM6DSR as fallback device since it
implements all the ASM330LHHX features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/asm330lhhx.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/04e2644772a6761a25c36bb9679979567fdebda3.1649100168.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: Drop unneeded explicit castings

In a few places the unnecessary explicit castings are being used.
Drop them for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210312134743.4055-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSOP

Add support to STM LSM6DSOP (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsop.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/d3c459ad945ccd1a256f4a217128be214b0c024e.1606642528.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DST

Add support to STM LSM6DST (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dst.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/835127b76ef5ad05aa2aac58298aee5f3073fb71.1601985763.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: st_lsm6dsx: Drop unneeded OF code

There is no need to have OF guard against ID table.
Drop it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSRX

Add support to STM LSM6DSRX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsrx.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DS0

Add support to STM LSM6DS0 6-axis (acc + gyro) Mems sensor

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1

The LSM9DS1's accelerometer / gyroscope unit and it's magnetometer (separately
supported in iio/magnetometer/st_magn*) are located on a separate i2c addresses
on the bus.

For the datasheet, see https://www.st.com/resource/en/datasheet/lsm9ds1.pdf

Treat it just like the LSM6* devices and, despite it's name, hook it up
to the st_lsm6dsx driver, using it's basic functionality.

accelerometer and gyroscope are not independently clocked. It runs at the gyro
frequencies if both are enabled, see chapter 7.12 of the datasheet.
We could have handled this as a single IIO device but we have split
it up to be more consistent with the other more flexible devices.

Despite supporting and testing the LSM9DS1, we call the gyro channels
iio_chan_spec struct "st_lsm6ds0_gyro_channels" because the register
description is equal. This suggests that supporting LSM6DS0 should be
trivial to do.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to ISM330DHCX

Add support to STM ISM330DHCX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/ism330dhcx.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DS3TR-C

Add support to STM LSM6DS3TR-C 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6ds3tr-c.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: get device name from st_lsm6dsx_sensor_settings

Introduce sensor name in st_lsm6dsx_sensor_settings table. This is
a preliminary patch to add I3C support to st_lsm6dsx since i3c_device_id
data structure does not contain a name field

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177

Based on 1 normalized pattern(s):

licensed under the gpl 2

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 135 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

iio: imu: st_lsm6dsx: add support to LSM6DSR

Add support to STM LSM6DSR 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsr.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSOX

Add support to STM LSM6DSOX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsox.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to ASM330LHH

Add support to STM ASM330LHH 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/asm330lhh.pdf

Tested-by: Mario Tesi <mario.tesi@st.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to LSM6DSO

Add support to STM LSM6DSO 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dso.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add support to ism330dlc

Add support to STM ISM330DLC 6-axis (acc + gyro) Mems sensor
http://www.st.com/resource/en/datasheet/ism330dlc.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

iio: imu: st_lsm6dsx: add regmap API support

Introduce regmap API support to access to i2c/spi bus instead of
using a custom support. Set max bulk read to
(32 / SAMPLE_SIZE) * SAMPLE_SIZE since spi_write_then_read() used in
regmap_spi indicates that is the max buffer length to use in order to
avoid a kmalloc for each bus access.
Remove lock mutex since concurrency is already managed by regmap API

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

iio: imu: st_lsm6dsx: add system power management support

Add system sleep power management support to st_lsm6dsx driver.
In particular during suspend phase each sensor is disabled and
hw fifo is configured in bypass in order to avoid subsequent
I/O operations. The patch has been tested on HiKey board device

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: imu: st_lsm6dsx: use i2c/spi device name for iio_dev name

Use the correct chip name (e.g. lsm6dsm) as suffix for iio_dev name
instead of a generic one (lsm6dsx)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: imu: st_lsm6dsx: add support to lsm6ds3h

Add support to STM LSM6DS3H 6-axis (acc + gyro) Mems sensor

http://www.st.com/resource/en/datasheet/lsm6ds3h.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: imu: st_lsm6dsx: add support to lsm6dsl

Add support to STM LSM6DSL 6-axis (acc + gyro) Mems sensor

http://www.st.com/resource/en/datasheet/lsm6dsl.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

iio: imu: add support to lsm6dsx driver

Add support to STM LSM6DS3-LSM6DSM 6-axis (acc + gyro) Mems sensor

http://www.st.com/resource/en/datasheet/lsm6ds3.pdf
http://www.st.com/resource/en/datasheet/lsm6dsm.pdf

- continuous mode support
- i2c support
- spi support
- sw fifo mode support
- supported devices: lsm6ds3, lsm6dsm

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>