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authorMarkus Pargmann <mpa@pengutronix.de>2015-08-19 14:12:46 +0200
committerJonathan Cameron <jic23@kernel.org>2015-08-31 17:06:11 +0100
commitb1d125cc6236399258025b0c5646cafa2b45e043 (patch)
tree3b975e979ac52854d3501c68ed33c44c354ecb5f
parentiio: bmg160: Separate i2c and core driver (diff)
downloadlinux-dev-b1d125cc6236399258025b0c5646cafa2b45e043.tar.xz
linux-dev-b1d125cc6236399258025b0c5646cafa2b45e043.zip
iio: bmg160: Add SPI driver
Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--drivers/iio/gyro/Kconfig7
-rw-r--r--drivers/iio/gyro/Makefile1
-rw-r--r--drivers/iio/gyro/bmg160_spi.c57
3 files changed, 64 insertions, 1 deletions
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 94526b13d49f..e816d29d6a62 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -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
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index 608401041550..f866a4be0667 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -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
diff --git a/drivers/iio/gyro/bmg160_spi.c b/drivers/iio/gyro/bmg160_spi.c
new file mode 100644
index 000000000000..021ea5fe6a37
--- /dev/null
+++ b/drivers/iio/gyro/bmg160_spi.c
@@ -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");