This add the real driver to talk over i2c and use the fxas2100x core
for the main tasks.
Signed-off-by: Rui Miguel Silva <rui.silva@xxxxxxxxxx>
---
drivers/iio/gyro/Kconfig | 6 +++
drivers/iio/gyro/Makefile | 1 +
drivers/iio/gyro/fxas2100x_i2c.c | 73 ++++++++++++++++++++++++++++++++
3 files changed, 80 insertions(+)
create mode 100644 drivers/iio/gyro/fxas2100x_i2c.c
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index c168aa63de3b..1f9bfc51febb 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -77,6 +77,8 @@ config FXAS2100X
tristate "NXP FXAS2100X Gyro Sensor"
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
+ select FXAS2100X_I2C if (I2C)
+ depends on (I2C || SPI_MASTER)
help
Say yes here to build support for NXP FXAS2100X family Tri-axis Gyro
Sensor driver connected via I2C or SPI.
@@ -84,6 +86,10 @@ config FXAS2100X
This driver can also be built as a module. If so, the module
will be called fxas2100x_i2c or fxas2100x_spi.
+config FXAS2100X_I2C
+ tristate
+ select REGMAP_I2C
+
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 9e2395185a6e..8b1540ddbbce 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_BMG160) += bmg160_core.o
obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
obj-$(CONFIG_FXAS2100X) += fxas2100x_core.o
+obj-$(CONFIG_FXAS2100X_I2C) += fxas2100x_i2c.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
diff --git a/drivers/iio/gyro/fxas2100x_i2c.c b/drivers/iio/gyro/fxas2100x_i2c.c
new file mode 100644
index 000000000000..b8f6d2b7f6dd
--- /dev/null
+++ b/drivers/iio/gyro/fxas2100x_i2c.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for NXP FXAS2100x Gyroscope - I2C
+ *
+ * Copyright (C) 2018 Linaro Ltd.
+ *
+ */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include "fxas2100x.h"
+
+static const struct regmap_config fxas2100x_regmap_i2c_conf = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = FXAS2100X_REG_CTRL3,
+};
+
+static int fxas2100x_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ const char *name = NULL;
+
+ regmap = devm_regmap_init_i2c(i2c, &fxas2100x_regmap_i2c_conf);
+ if (IS_ERR(regmap)) {
+ dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n",
+ PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ if (id)
+ name = id->name;
+
+ return fxas2100x_core_probe(&i2c->dev, regmap, i2c->irq, name);
+}
+
+static int fxas2100x_i2c_remove(struct i2c_client *i2c)
+{
+ fxas2100x_core_remove(&i2c->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id fxas2100x_i2c_id[] = {
+ { "fxas2100x", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, fxas2100x_i2c_id);
+
+static const struct of_device_id fxas2100x_i2c_of_match[] = {
+ { .compatible = "nxp,fxas21002", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, fxas2100x_i2c_of_match);
+
+static struct i2c_driver fxas2100x_i2c_driver = {
+ .driver = {
+ .name = "fxas2100x_i2c",
+ .pm = &fxas2100x_pm_ops,
+ .of_match_table = of_match_ptr(fxas2100x_i2c_of_match),
+ },
+ .probe = fxas2100x_i2c_probe,
+ .remove = fxas2100x_i2c_remove,
+ .id_table = fxas2100x_i2c_id,
+};
+module_i2c_driver(fxas2100x_i2c_driver);
+
+MODULE_AUTHOR("Rui Miguel Silva <rui.silva@xxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("FXAS2100X I2C Gyro driver");
--
2.20.1
