iio: magn: bmc150: Introduce SPI support (534536ac) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/iio/magnetometer/Kconfig

+16 −0

Original line number	Diff line number	Diff line
		@@ -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

drivers/iio/magnetometer/Makefile

+1 −0

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		@@ -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

drivers/iio/magnetometer/bmc150_magn_spi.c

0 → 100644

+68 −0

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		/*
		* 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");