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iio: add MEMSensing MSA311 3-axis accelerometer driver 

MSA311 is a tri-axial, low-g accelerometer with I2C digital output for
sensitivity consumer applications. It has dynamic user-selectable full
scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements
with output data rates from 1Hz to 1000Hz.

This driver supports following MSA311 features:
    - IIO interface
    - Different power modes: NORMAL and SUSPEND (using pm_runtime)
    - ODR (Output Data Rate) selection
    - Scale and samp_freq selection
    - IIO triggered buffer, IIO reg access
    - NEW_DATA interrupt + trigger

Below features to be done:
    - Motion Events: ACTIVE, TAP, ORIENT, FREEFALL
    - Low Power mode

Datasheet: https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220822175011.2886-4-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Dmitry Rokosov 2022-08-22 17:49:25 +00:00 committed by Jonathan Cameron
parent 4905949395
commit 1ca2cfbc0c
4 changed files with 1342 additions and 0 deletions
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6
MAINTAINERS
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@ -13176,6 +13176,12 @@ F: drivers/mtd/
F: include/linux/mtd/
F: include/uapi/mtd/
MEMSENSING MICROSYSTEMS MSA311 DRIVER
M: Dmitry Rokosov <ddrokosov@sberdevices.ru>
L: linux-iio@vger.kernel.org
S: Maintained
F: drivers/iio/accel/msa311.c
MEN A21 WATCHDOG DRIVER
M: Johannes Thumshirn <morbidrsa@gmail.com>
L: linux-watchdog@vger.kernel.org

13
drivers/iio/accel/Kconfig
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@ -541,6 +541,19 @@ config MMA9553
To compile this driver as a module, choose M here: the module
will be called mma9553.
config MSA311
tristate "MEMSensing Digital 3-Axis Accelerometer Driver"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select REGMAP_I2C
help
Say yes here to build support for the MEMSensing MSA311
accelerometer driver.
To compile this driver as a module, choose M here: the module will be
called msa311.
config MXC4005
tristate "Memsic MXC4005XC 3-Axis Accelerometer Driver"
depends on I2C

2
drivers/iio/accel/Makefile
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@ -58,6 +58,8 @@ obj-$(CONFIG_MMA9551_CORE) += mma9551_core.o
obj-$(CONFIG_MMA9551) += mma9551.o
obj-$(CONFIG_MMA9553) += mma9553.o
obj-$(CONFIG_MSA311) += msa311.o
obj-$(CONFIG_MXC4005) += mxc4005.o
obj-$(CONFIG_MXC6255) += mxc6255.o

1321
drivers/iio/accel/msa311.c Normal file
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