Commit 761b7910 authored by Daniel Baluta's avatar Daniel Baluta Committed by Jonathan Cameron

iio: magn: Split bmc150 driver in common/i2c parts

This is useful for easily adding SPI support in later patches.

Now bmc150_magn exports core functions to be used by I2C/SPI drivers
instances. For the moment only I2C driver is supported.
Signed-off-by: default avatarDaniel Baluta <daniel.baluta@intel.com>
Acked-by: default avatarIrina Tirdea <irina.tirdea@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 922b3aa6
......@@ -27,22 +27,25 @@ config AK09911
Deprecated: AK09911 is now supported by AK8975 driver.
config BMC150_MAGN
tristate "Bosch BMC150 Magnetometer Driver"
depends on I2C
select REGMAP_I2C
tristate
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for the BMC150 magnetometer.
Currently this only supports the device via an i2c interface.
config BMC150_MAGN_I2C
tristate "Bosch BMC150 I2C Magnetometer Driver"
depends on I2C
select BMC150_MAGN
select REGMAP_I2C
help
Say yes here to build support for the BMC150 magnetometer with
I2C interface.
This is a combo module with both accelerometer and magnetometer.
This driver is only implementing magnetometer part, which has
its own address and register map.
To compile this driver as a module, choose M here: the module will be
called bmc150_magn.
called bmc150_magn_i2c.
config MAG3110
tristate "Freescale MAG3110 3-Axis Magnetometer"
......
......@@ -5,6 +5,8 @@
# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_AK8975) += ak8975.o
obj-$(CONFIG_BMC150_MAGN) += bmc150_magn.o
obj-$(CONFIG_BMC150_MAGN_I2C) += bmc150_magn_i2c.o
obj-$(CONFIG_MAG3110) += mag3110.o
obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o
obj-$(CONFIG_MMC35240) += mmc35240.o
......
This diff is collapsed.
#ifndef _BMC150_MAGN_H_
#define _BMC150_MAGN_H_
extern const struct regmap_config bmc150_magn_regmap_config;
extern const struct dev_pm_ops bmc150_magn_pm_ops;
int bmc150_magn_probe(struct device *dev, struct regmap *regmap, int irq,
const char *name);
int bmc150_magn_remove(struct device *dev);
#endif /* _BMC150_MAGN_H_ */
/*
* 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
* - BMC150
* - BMC156
*
* Copyright (c) 2016, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/regmap.h>
#include "bmc150_magn.h"
static int bmc150_magn_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct regmap *regmap;
const char *name = NULL;
regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "Failed to initialize i2c regmap\n");
return PTR_ERR(regmap);
}
if (id)
name = id->name;
return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
}
static int bmc150_magn_i2c_remove(struct i2c_client *client)
{
return bmc150_magn_remove(&client->dev);
}
static const struct acpi_device_id bmc150_magn_acpi_match[] = {
{"BMC150B", 0},
{"BMC156B", 0},
{},
};
MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
static const struct i2c_device_id bmc150_magn_i2c_id[] = {
{"bmc150_magn", 0},
{"bmc156_magn", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
static struct i2c_driver bmc150_magn_driver = {
.driver = {
.name = "bmc150_magn_i2c",
.acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
.pm = &bmc150_magn_pm_ops,
},
.probe = bmc150_magn_i2c_probe,
.remove = bmc150_magn_i2c_remove,
.id_table = bmc150_magn_i2c_id,
};
module_i2c_driver(bmc150_magn_driver);
MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
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