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Diffstat (limited to 'kernel/drivers/iio/gyro/st_gyro_i2c.c')
-rw-r--r--kernel/drivers/iio/gyro/st_gyro_i2c.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/kernel/drivers/iio/gyro/st_gyro_i2c.c b/kernel/drivers/iio/gyro/st_gyro_i2c.c
new file mode 100644
index 000000000..64480b16c
--- /dev/null
+++ b/kernel/drivers/iio/gyro/st_gyro_i2c.c
@@ -0,0 +1,114 @@
+/*
+ * STMicroelectronics gyroscopes 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_gyro.h"
+
+#ifdef CONFIG_OF
+static const struct of_device_id st_gyro_of_match[] = {
+ {
+ .compatible = "st,l3g4200d-gyro",
+ .data = L3G4200D_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,lsm330d-gyro",
+ .data = LSM330D_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,lsm330dl-gyro",
+ .data = LSM330DL_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,lsm330dlc-gyro",
+ .data = LSM330DLC_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,l3gd20-gyro",
+ .data = L3GD20_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,l3g4is-gyro",
+ .data = L3G4IS_GYRO_DEV_NAME,
+ },
+ {
+ .compatible = "st,lsm330-gyro",
+ .data = LSM330_GYRO_DEV_NAME,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, st_gyro_of_match);
+#else
+#define st_gyro_of_match NULL
+#endif
+
+static int st_gyro_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct iio_dev *indio_dev;
+ struct st_sensor_data *gdata;
+ int err;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ gdata = iio_priv(indio_dev);
+ st_sensors_of_i2c_probe(client, st_gyro_of_match);
+
+ st_sensors_i2c_configure(indio_dev, client, gdata);
+
+ err = st_gyro_common_probe(indio_dev);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int st_gyro_i2c_remove(struct i2c_client *client)
+{
+ st_gyro_common_remove(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+static const struct i2c_device_id st_gyro_id_table[] = {
+ { L3G4200D_GYRO_DEV_NAME },
+ { LSM330D_GYRO_DEV_NAME },
+ { LSM330DL_GYRO_DEV_NAME },
+ { LSM330DLC_GYRO_DEV_NAME },
+ { L3GD20_GYRO_DEV_NAME },
+ { L3G4IS_GYRO_DEV_NAME },
+ { LSM330_GYRO_DEV_NAME },
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
+
+static struct i2c_driver st_gyro_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "st-gyro-i2c",
+ .of_match_table = of_match_ptr(st_gyro_of_match),
+ },
+ .probe = st_gyro_i2c_probe,
+ .remove = st_gyro_i2c_remove,
+ .id_table = st_gyro_id_table,
+};
+module_i2c_driver(st_gyro_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
+MODULE_LICENSE("GPL v2");