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a84ef0d181
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 <manabian@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer
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* Copyright 2015 Joachim Eastwood <manabian@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include "mma7455.h"
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static int mma7455_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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const char *name = NULL;
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regmap = devm_regmap_init_i2c(i2c, &mma7455_core_regmap);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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if (id)
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name = id->name;
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return mma7455_core_probe(&i2c->dev, regmap, name);
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}
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static int mma7455_i2c_remove(struct i2c_client *i2c)
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{
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return mma7455_core_remove(&i2c->dev);
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}
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static const struct i2c_device_id mma7455_i2c_ids[] = {
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{ "mma7455", 0 },
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{ "mma7456", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids);
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static struct i2c_driver mma7455_i2c_driver = {
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.probe = mma7455_i2c_probe,
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.remove = mma7455_i2c_remove,
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.id_table = mma7455_i2c_ids,
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.driver = {
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.name = "mma7455-i2c",
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},
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};
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module_i2c_driver(mma7455_i2c_driver);
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MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
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MODULE_DESCRIPTION("Freescale MMA7455L I2C accelerometer driver");
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MODULE_LICENSE("GPL v2");
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