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Message-Id: <1438177569-18772-8-git-send-email-mpa@pengutronix.de>
Date: Wed, 29 Jul 2015 15:46:09 +0200
From: Markus Pargmann <mpa@...gutronix.de>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Vlad Dogaru <vlad.dogaru@...el.com>, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel@...gutronix.de,
Markus Pargmann <mpa@...gutronix.de>
Subject: [PATCH 7/7] iio: bmg160: Add SPI driver
Signed-off-by: Markus Pargmann <mpa@...gutronix.de>
---
drivers/iio/gyro/Kconfig | 11 ++++++++
drivers/iio/gyro/Makefile | 1 +
drivers/iio/gyro/bmg160_spi.c | 59 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 71 insertions(+)
create mode 100644 drivers/iio/gyro/bmg160_spi.c
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 1e6cfff5546f..420aea844216 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -72,6 +72,17 @@ config BMG160_I2C
This driver can also be built as a module. If so, the module
will be called bmg160_i2c.
+config BMG160_SPI
+ tristate "Driver for connection via SPI"
+ depends on SPI
+ select REGMAP_SPI
+ help
+ Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
+ driver connected via SPI. This driver also supports BMI055 gyroscope.
+
+ This driver can also be built as a module. If so, the module
+ will be called bmg160_spi.
+
endif
config HID_SENSOR_GYRO_3D
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..e189abd78bc6
--- /dev/null
+++ b/drivers/iio/gyro/bmg160_spi.c
@@ -0,0 +1,59 @@
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/module.h>
+
+#include <bmg160.h>
+
+struct regmap_config bmg160_regmap_conf = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .read_flag_mask = 0x80,
+
+ .use_single_rw = true,
+ .cache_type = REGCACHE_NONE,
+};
+
+static int bmg160_spi_probe(struct spi_device *spi)
+{
+ struct regmap *regmap;
+
+ regmap = devm_regmap_init_spi(spi, &bmg160_regmap_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, NULL);
+}
+
+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@...gutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMG160 SPI Gyro driver");
--
2.1.4
--
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