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iio: bmg160: Add SPI driver

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Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Markus Pargmann 2015-08-19 14:12:46 +02:00 committed by Jonathan Cameron
parent 13426454b6
commit b1d125cc62
3 changed files with 64 additions and 1 deletions
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7
drivers/iio/gyro/Kconfig
View File

@ -56,18 +56,23 @@ config BMG160
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select BMG160_I2C if (I2C)
select BMG160_SPI if (SPI)
help
Say yes here to build support for BOSCH BMG160 Tri-axis Gyro Sensor
driver connected via I2C or SPI. This driver also supports BMI055
gyroscope.
This driver can also be built as a module. If so, the module
will be called bmg160_i2c.
will be called bmg160_i2c or bmg160_spi.
config BMG160_I2C
tristate
select REGMAP_I2C
config BMG160_SPI
tristate
select REGMAP_SPI
config HID_SENSOR_GYRO_3D
depends on HID_SENSOR_HUB
select IIO_BUFFER

1
drivers/iio/gyro/Makefile
View File

@ -10,6 +10,7 @@ obj-$(CONFIG_ADIS16260) += adis16260.o
obj-$(CONFIG_ADXRS450) += adxrs450.o
obj-$(CONFIG_BMG160) += bmg160_core.o
obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o

57
drivers/iio/gyro/bmg160_spi.c Normal file
View File

@ -0,0 +1,57 @@
#include <linux/spi/spi.h>
#include <linux/regmap.h>
#include <linux/iio/iio.h>
#include <linux/module.h>
#include "bmg160.h"
static const struct regmap_config bmg160_regmap_spi_conf = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x3f,
};
static int bmg160_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, &bmg160_regmap_spi_conf);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
(int)PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return bmg160_core_probe(&spi->dev, regmap, spi->irq, id->name);
}
static int bmg160_spi_remove(struct spi_device *spi)
{
bmg160_core_remove(&spi->dev);
return 0;
}
static const struct spi_device_id bmg160_spi_id[] = {
{"bmg160", 0},
{"bmi055_gyro", 0},
{}
};
MODULE_DEVICE_TABLE(spi, bmg160_spi_id);
static struct spi_driver bmg160_spi_driver = {
.driver = {
.name = "bmg160_spi",
.pm = &bmg160_pm_ops,
},
.probe = bmg160_spi_probe,
.remove = bmg160_spi_remove,
.id_table = bmg160_spi_id,
};
module_spi_driver(bmg160_spi_driver);
MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("BMG160 SPI Gyro driver");