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iio: magn: bmc150: Introduce SPI support

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Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Daniel Baluta 2016-04-15 17:13:10 +03:00 committed by Jonathan Cameron
parent 761b7910d4
commit 534536acdb
3 changed files with 85 additions and 0 deletions
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16
drivers/iio/magnetometer/Kconfig
View file

@ -47,6 +47,22 @@ config BMC150_MAGN_I2C
To compile this driver as a module, choose M here: the module will be
called bmc150_magn_i2c.
config BMC150_MAGN_SPI
tristate "Bosch BMC150 SPI Magnetometer Driver"
depends on SPI
select BMC150_MAGN
select REGMAP_SPI
help
Say yes here to build support for the BMC150 magnetometer with
SPI 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_spi.
config MAG3110
tristate "Freescale MAG3110 3-Axis Magnetometer"
depends on I2C

1
drivers/iio/magnetometer/Makefile
View file

@ -6,6 +6,7 @@
obj-$(CONFIG_AK8975) += ak8975.o
obj-$(CONFIG_BMC150_MAGN) += bmc150_magn.o
obj-$(CONFIG_BMC150_MAGN_I2C) += bmc150_magn_i2c.o
obj-$(CONFIG_BMC150_MAGN_SPI) += bmc150_magn_spi.o
obj-$(CONFIG_MAG3110) += mag3110.o
obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o

68
drivers/iio/magnetometer/bmc150_magn_spi.c Normal file
View file

@ -0,0 +1,68 @@
/*
* 3-axis magnetometer driver support following SPI Bosch-Sensortec chips:
* - BMC150
* - BMC156
*
* Copyright (c) 2016, Intel Corporation.
*
* This file is subject to the terms and conditions of version 2 of
* the GNU General Public License. See the file COPYING in the main
* directory of this archive for more details.
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/spi/spi.h>
#include <linux/acpi.h>
#include <linux/regmap.h>
#include "bmc150_magn.h"
static int bmc150_magn_spi_probe(struct spi_device *spi)
{
struct regmap *regmap;
const struct spi_device_id *id = spi_get_device_id(spi);
regmap = devm_regmap_init_spi(spi, &bmc150_magn_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
(int)PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return bmc150_magn_probe(&spi->dev, regmap, spi->irq, id->name);
}
static int bmc150_magn_spi_remove(struct spi_device *spi)
{
bmc150_magn_remove(&spi->dev);
return 0;
}
static const struct spi_device_id bmc150_magn_spi_id[] = {
{"bmc150_magn", 0},
{"bmc156_magn", 0},
{}
};
MODULE_DEVICE_TABLE(spi, bmc150_magn_spi_id);
static const struct acpi_device_id bmc150_magn_acpi_match[] = {
{"BMC150B", 0},
{"BMC156B", 0},
{},
};
MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
static struct spi_driver bmc150_magn_spi_driver = {
.probe = bmc150_magn_spi_probe,
.remove = bmc150_magn_spi_remove,
.id_table = bmc150_magn_spi_id,
.driver = {
.acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
.name = "bmc150_magn_spi",
},
};
module_spi_driver(bmc150_magn_spi_driver);
MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
MODULE_DESCRIPTION("BMC150 magnetometer SPI driver");
MODULE_LICENSE("GPL v2");