iio: gyro: fxas21002c: add i2c driver
Add the real driver to talk over i2c and use the fxas21002c core for the main tasks. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>hifive-unleashed-5.2
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a0701b6263
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a034cbe1c4
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@ -77,6 +77,8 @@ config FXAS21002C
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tristate "NXP FXAS21002C Gyro Sensor"
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tristate "NXP FXAS21002C Gyro Sensor"
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select IIO_BUFFER
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select IIO_BUFFER
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select IIO_TRIGGERED_BUFFER
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select IIO_TRIGGERED_BUFFER
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select FXAS21002C_I2C if (I2C)
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depends on I2C
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help
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help
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Say yes here to build support for NXP FXAS21002C Tri-axis Gyro
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Say yes here to build support for NXP FXAS21002C Tri-axis Gyro
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Sensor driver connected via I2C or SPI.
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Sensor driver connected via I2C or SPI.
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@ -84,6 +86,10 @@ config FXAS21002C
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This driver can also be built as a module. If so, the module
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This driver can also be built as a module. If so, the module
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will be called fxas21002c_i2c or fxas21002c_spi.
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will be called fxas21002c_i2c or fxas21002c_spi.
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config FXAS21002C_I2C
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tristate
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select REGMAP_I2C
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config HID_SENSOR_GYRO_3D
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config HID_SENSOR_GYRO_3D
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depends on HID_SENSOR_HUB
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depends on HID_SENSOR_HUB
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select IIO_BUFFER
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select IIO_BUFFER
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@ -13,6 +13,7 @@ obj-$(CONFIG_BMG160) += bmg160_core.o
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obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
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obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
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obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
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obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
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obj-$(CONFIG_FXAS21002C) += fxas21002c_core.o
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obj-$(CONFIG_FXAS21002C) += fxas21002c_core.o
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obj-$(CONFIG_FXAS21002C_I2C) += fxas21002c_i2c.o
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obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
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obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
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@ -0,0 +1,69 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Driver for NXP FXAS21002C Gyroscope - I2C
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*
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* Copyright (C) 2018 Linaro Ltd.
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*/
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include "fxas21002c.h"
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static const struct regmap_config fxas21002c_regmap_i2c_conf = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = FXAS21002C_REG_CTRL3,
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};
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static int fxas21002c_i2c_probe(struct i2c_client *i2c)
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{
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struct regmap *regmap;
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regmap = devm_regmap_init_i2c(i2c, &fxas21002c_regmap_i2c_conf);
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if (IS_ERR(regmap)) {
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dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n",
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PTR_ERR(regmap));
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return PTR_ERR(regmap);
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}
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return fxas21002c_core_probe(&i2c->dev, regmap, i2c->irq, i2c->name);
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}
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static int fxas21002c_i2c_remove(struct i2c_client *i2c)
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{
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fxas21002c_core_remove(&i2c->dev);
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return 0;
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}
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static const struct i2c_device_id fxas21002c_i2c_id[] = {
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{ "fxas21002c", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, fxas21002c_i2c_id);
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static const struct of_device_id fxas21002c_i2c_of_match[] = {
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{ .compatible = "nxp,fxas21002c", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, fxas21002c_i2c_of_match);
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static struct i2c_driver fxas21002c_i2c_driver = {
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.driver = {
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.name = "fxas21002c_i2c",
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.pm = &fxas21002c_pm_ops,
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.of_match_table = fxas21002c_i2c_of_match,
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},
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.probe_new = fxas21002c_i2c_probe,
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.remove = fxas21002c_i2c_remove,
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.id_table = fxas21002c_i2c_id,
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};
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module_i2c_driver(fxas21002c_i2c_driver);
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MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("FXAS21002C I2C Gyro driver");
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