From a84ef0d181d917125f1f16cffe53f84c19968969 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 31 Oct 2015 13:49:16 +0100 Subject: iio: accel: add Freescale MMA7455L/MMA7456L 3-axis accelerometer driver Add support for Freescale MMA7455L/MMA7456L 3-axis in 10-bit mode for I2C and SPI bus. This rather simple driver that currently doesn't support all the hardware features of MMA7455L/MMA7456L. Tested on Embedded Artist's LPC4357 Dev Kit with MMA7455L on I2C bus. Data sheets for the two devices can be found here: http://cache.freescale.com/files/sensors/doc/data_sheet/MMA7455L.pdf http://cache.freescale.com/files/sensors/doc/data_sheet/MMA7456L.pdf Signed-off-by: Joachim Eastwood Signed-off-by: Jonathan Cameron --- drivers/iio/accel/mma7455_i2c.c | 56 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 drivers/iio/accel/mma7455_i2c.c (limited to 'drivers/iio/accel/mma7455_i2c.c') diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c new file mode 100644 index 000000000000..3cab5fb4a3c4 --- /dev/null +++ b/drivers/iio/accel/mma7455_i2c.c @@ -0,0 +1,56 @@ +/* + * IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer + * Copyright 2015 Joachim Eastwood + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include + +#include "mma7455.h" + +static int mma7455_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + const char *name = NULL; + + regmap = devm_regmap_init_i2c(i2c, &mma7455_core_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + if (id) + name = id->name; + + return mma7455_core_probe(&i2c->dev, regmap, name); +} + +static int mma7455_i2c_remove(struct i2c_client *i2c) +{ + return mma7455_core_remove(&i2c->dev); +} + +static const struct i2c_device_id mma7455_i2c_ids[] = { + { "mma7455", 0 }, + { "mma7456", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids); + +static struct i2c_driver mma7455_i2c_driver = { + .probe = mma7455_i2c_probe, + .remove = mma7455_i2c_remove, + .id_table = mma7455_i2c_ids, + .driver = { + .name = "mma7455-i2c", + }, +}; +module_i2c_driver(mma7455_i2c_driver); + +MODULE_AUTHOR("Joachim Eastwood "); +MODULE_DESCRIPTION("Freescale MMA7455L I2C accelerometer driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3