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7c1d1677b3
KX022A is a 3-axis accelerometer from ROHM/Kionix. The sensor features include variable ODRs, I2C and SPI control, FIFO/LIFO with watermark IRQ, tap/motion detection, wake-up & back-to-sleep events, four acceleration ranges (2, 4, 8 and 16g), and probably some other cool features. Add support for the basic accelerometer features such as getting the acceleration data via IIO. (raw reads, triggered buffer [data-ready] or using the WMI IRQ). Important things to be added include the double-tap, motion detection and wake-up as well as the runtime power management. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/758b00d6aea0a6431a5a3a78d557d449c113b21e.1666614295.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2022 ROHM Semiconductors
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*
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* ROHM/KIONIX KX022A accelerometer driver
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*/
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include "kionix-kx022a.h"
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static int kx022a_i2c_probe(struct i2c_client *i2c)
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{
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struct device *dev = &i2c->dev;
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struct regmap *regmap;
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if (!i2c->irq) {
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dev_err(dev, "No IRQ configured\n");
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return -EINVAL;
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}
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regmap = devm_regmap_init_i2c(i2c, &kx022a_regmap);
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if (IS_ERR(regmap))
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return dev_err_probe(dev, PTR_ERR(regmap),
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"Failed to initialize Regmap\n");
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return kx022a_probe_internal(dev);
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}
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static const struct of_device_id kx022a_of_match[] = {
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{ .compatible = "kionix,kx022a", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, kx022a_of_match);
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static struct i2c_driver kx022a_i2c_driver = {
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.driver = {
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.name = "kx022a-i2c",
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.of_match_table = kx022a_of_match,
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},
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.probe_new = kx022a_i2c_probe,
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};
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module_i2c_driver(kx022a_i2c_driver);
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MODULE_DESCRIPTION("ROHM/Kionix KX022A accelerometer driver");
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MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS(IIO_KX022A);
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