diff options
author | Daniel Baluta <daniel.baluta@intel.com> | 2016-04-15 17:13:10 +0300 |
---|---|---|
committer | Jonathan Cameron <jic23@kernel.org> | 2016-04-18 20:44:47 +0100 |
commit | 534536acdb25bae85a5333b7085837b3f1f72b73 (patch) | |
tree | ee9dc7fe7b7c9b48740bb88e1f0c82d1aeb1d0ac /drivers | |
parent | 761b7910d4b4f0e7d283873b701ca83beacd70a5 (diff) | |
download | linux-534536acdb25bae85a5333b7085837b3f1f72b73.tar.bz2 |
iio: magn: bmc150: Introduce SPI support
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/iio/magnetometer/Kconfig | 16 | ||||
-rw-r--r-- | drivers/iio/magnetometer/Makefile | 1 | ||||
-rw-r--r-- | drivers/iio/magnetometer/bmc150_magn_spi.c | 68 |
3 files changed, 85 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index 4972f9d17023..84e6559ccc65 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -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 diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile index 56477737e083..92a745c9a6e8 100644 --- a/drivers/iio/magnetometer/Makefile +++ b/drivers/iio/magnetometer/Makefile @@ -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 diff --git a/drivers/iio/magnetometer/bmc150_magn_spi.c b/drivers/iio/magnetometer/bmc150_magn_spi.c new file mode 100644 index 000000000000..c4c738a07695 --- /dev/null +++ b/drivers/iio/magnetometer/bmc150_magn_spi.c @@ -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"); |