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Diffstat (limited to 'drivers/iio/accel/adxl345_i2c.c')
-rw-r--r--drivers/iio/accel/adxl345_i2c.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c
new file mode 100644
index 0000000000..e47d12f196
--- /dev/null
+++ b/drivers/iio/accel/adxl345_i2c.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ADXL345 3-Axis Digital Accelerometer I2C driver
+ *
+ * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com>
+ *
+ * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or
+ * 0x53 (ALT ADDRESS pin grounded)
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "adxl345.h"
+
+static const struct regmap_config adxl345_i2c_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int adxl345_i2c_probe(struct i2c_client *client)
+{
+ struct regmap *regmap;
+
+ regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
+ if (IS_ERR(regmap))
+ return dev_err_probe(&client->dev, PTR_ERR(regmap), "Error initializing regmap\n");
+
+ return adxl345_core_probe(&client->dev, regmap);
+}
+
+static const struct i2c_device_id adxl345_i2c_id[] = {
+ { "adxl345", ADXL345 },
+ { "adxl375", ADXL375 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
+
+static const struct of_device_id adxl345_of_match[] = {
+ { .compatible = "adi,adxl345", .data = (const void *)ADXL345 },
+ { .compatible = "adi,adxl375", .data = (const void *)ADXL375 },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adxl345_of_match);
+
+static const struct acpi_device_id adxl345_acpi_match[] = {
+ { "ADS0345", ADXL345 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match);
+
+static struct i2c_driver adxl345_i2c_driver = {
+ .driver = {
+ .name = "adxl345_i2c",
+ .of_match_table = adxl345_of_match,
+ .acpi_match_table = adxl345_acpi_match,
+ },
+ .probe = adxl345_i2c_probe,
+ .id_table = adxl345_i2c_id,
+};
+module_i2c_driver(adxl345_i2c_driver);
+
+MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>");
+MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver");
+MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ADXL345);