Add the required WHOAMI and device_id definitions to support the
icm42631.
Signed-off-by: Jay Greco <grecojay@amazon.com>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20221110192933.13616-2-grecojay@amazon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
As these exports are only relevant to core module and users in the
bus specific modules, move them out of the main kernel namespace.
Includes using EXPORT_NS_GPL_DEV_PM_OPS() and the simplifications that
brings by allowing the compiler to remove unused struct dev_pm_ops
and callbacks without needing explicit __maybe_unused markings.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
--
EXPORT_NS_GPL_DEV_PM_OPS()
v2: Switch to Paul's more flexible version of the
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20220925155719.3316280-5-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The 0 value used for INV_CHIP_ICM42600 was not working since the
match in i2c/spi was checking against NULL value.
To keep this check, add a first INV_CHIP_INVALID 0 value as safe
guard.
Fixes: 31c24c1e93 ("iio: imu: inv_icm42600: add core of new inv_icm42600 driver")
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20220609102301.4794-1-jmaneyrol@invensense.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
All of the users of iio_read_mount_matrix() are using the very same
property name. Moreover, the property name is hard coded in the API
documentation.
Make this clear and avoid duplication now and in the future.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210518112546.44592-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add a timestamping mechanism for buffer that provides accurate
event timestamps when using watermark. This mechanism estimates
device internal clock by comparing FIFO interrupts delta time and
device elapsed time computed by parsing FIFO data.
Take interrupt timestamp in hard irq handler and add IIO device
specific timestamp structures in device private allocation.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add all FIFO parsing and reading functions. Add accel and gyro
kfifo buffer and FIFO data parsing. Use device interrupt for
reading data FIFO and launching accel and gyro parsing.
Support hwfifo watermark by multiplexing gyro and accel settings.
Support hwfifo flush.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add INT1 interrupt support. Support interrupt edge and level,
active high or low. Push-pull or open-drain configurations.
Interrupt will be used to read data from the FIFO.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Core component of a new driver for InvenSense ICM-426xx devices.
It includes registers definition, main probe/setup, and device
utility functions.
ICM-426xx devices are latest generation of 6-axis IMU,
gyroscope+accelerometer and temperature sensor. This device
includes a 2K FIFO, supports I2C/I3C/SPI, and provides
intelligent motion features like pedometer, tilt detection,
and tap detection.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
