Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / iio / accel / st_accel_i2c.c

diff --git a/kernel/drivers/iio/accel/st_accel_i2c.c b/kernel/drivers/iio/accel/st_accel_i2c.c
new file mode 100644 (file)
index 0000000..6b720c1
--- /dev/null
+++ b/kernel/drivers/iio/accel/st_accel_i2c.c
@@ -0,0 +1,133 @@
+/*
+ * STMicroelectronics accelerometers driver
+ *
+ * Copyright 2012-2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_i2c.h>
+#include "st_accel.h"
+
+#ifdef CONFIG_OF
+static const struct of_device_id st_accel_of_match[] = {
+       {
+               .compatible = "st,lis3lv02dl-accel",
+               .data = LIS3LV02DL_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm303dlh-accel",
+               .data = LSM303DLH_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm303dlhc-accel",
+               .data = LSM303DLHC_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis3dh-accel",
+               .data = LIS3DH_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330d-accel",
+               .data = LSM330D_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330dl-accel",
+               .data = LSM330DL_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330dlc-accel",
+               .data = LSM330DLC_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lis331dlh-accel",
+               .data = LIS331DLH_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm303dl-accel",
+               .data = LSM303DL_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm303dlm-accel",
+               .data = LSM303DLM_ACCEL_DEV_NAME,
+       },
+       {
+               .compatible = "st,lsm330-accel",
+               .data = LSM330_ACCEL_DEV_NAME,
+       },
+       {},
+};
+MODULE_DEVICE_TABLE(of, st_accel_of_match);
+#else
+#define st_accel_of_match NULL
+#endif
+
+static int st_accel_i2c_probe(struct i2c_client *client,
+                                               const struct i2c_device_id *id)
+{
+       struct iio_dev *indio_dev;
+       struct st_sensor_data *adata;
+       int err;
+
+       indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
+       if (!indio_dev)
+               return -ENOMEM;
+
+       adata = iio_priv(indio_dev);
+       st_sensors_of_i2c_probe(client, st_accel_of_match);
+
+       st_sensors_i2c_configure(indio_dev, client, adata);
+
+       err = st_accel_common_probe(indio_dev);
+       if (err < 0)
+               return err;
+
+       return 0;
+}
+
+static int st_accel_i2c_remove(struct i2c_client *client)
+{
+       st_accel_common_remove(i2c_get_clientdata(client));
+
+       return 0;
+}
+
+static const struct i2c_device_id st_accel_id_table[] = {
+       { LSM303DLH_ACCEL_DEV_NAME },
+       { LSM303DLHC_ACCEL_DEV_NAME },
+       { LIS3DH_ACCEL_DEV_NAME },
+       { LSM330D_ACCEL_DEV_NAME },
+       { LSM330DL_ACCEL_DEV_NAME },
+       { LSM330DLC_ACCEL_DEV_NAME },
+       { LIS331DLH_ACCEL_DEV_NAME },
+       { LSM303DL_ACCEL_DEV_NAME },
+       { LSM303DLM_ACCEL_DEV_NAME },
+       { LSM330_ACCEL_DEV_NAME },
+       {},
+};
+MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
+
+static struct i2c_driver st_accel_driver = {
+       .driver = {
+               .owner = THIS_MODULE,
+               .name = "st-accel-i2c",
+               .of_match_table = of_match_ptr(st_accel_of_match),
+       },
+       .probe = st_accel_i2c_probe,
+       .remove = st_accel_i2c_remove,
+       .id_table = st_accel_id_table,
+};
+module_i2c_driver(st_accel_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
+MODULE_LICENSE("GPL v2");