These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / iio / accel / bmc150-accel-i2c.c

diff --git a/kernel/drivers/iio/accel/bmc150-accel-i2c.c b/kernel/drivers/iio/accel/bmc150-accel-i2c.c
new file mode 100644 (file)
index 0000000..b41404b
--- /dev/null
+++ b/kernel/drivers/iio/accel/bmc150-accel-i2c.c
@@ -0,0 +1,102 @@
+/*
+ * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips:
+ *  - BMC150
+ *  - BMI055
+ *  - BMA255
+ *  - BMA250E
+ *  - BMA222E
+ *  - BMA280
+ *
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/regmap.h>
+
+#include "bmc150-accel.h"
+
+static const struct regmap_config bmc150_i2c_regmap_conf = {
+       .reg_bits = 8,
+       .val_bits = 8,
+};
+
+static int bmc150_accel_probe(struct i2c_client *client,
+                             const struct i2c_device_id *id)
+{
+       struct regmap *regmap;
+       const char *name = NULL;
+       bool block_supported =
+               i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
+               i2c_check_functionality(client->adapter,
+                                       I2C_FUNC_SMBUS_READ_I2C_BLOCK);
+
+       regmap = devm_regmap_init_i2c(client, &bmc150_i2c_regmap_conf);
+       if (IS_ERR(regmap)) {
+               dev_err(&client->dev, "Failed to initialize i2c regmap\n");
+               return PTR_ERR(regmap);
+       }
+
+       if (id)
+               name = id->name;
+
+       return bmc150_accel_core_probe(&client->dev, regmap, client->irq, name,
+                                      block_supported);
+}
+
+static int bmc150_accel_remove(struct i2c_client *client)
+{
+       return bmc150_accel_core_remove(&client->dev);
+}
+
+static const struct acpi_device_id bmc150_accel_acpi_match[] = {
+       {"BSBA0150",    bmc150},
+       {"BMC150A",     bmc150},
+       {"BMI055A",     bmi055},
+       {"BMA0255",     bma255},
+       {"BMA250E",     bma250e},
+       {"BMA222E",     bma222e},
+       {"BMA0280",     bma280},
+       { },
+};
+MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
+
+static const struct i2c_device_id bmc150_accel_id[] = {
+       {"bmc150_accel",        bmc150},
+       {"bmi055_accel",        bmi055},
+       {"bma255",              bma255},
+       {"bma250e",             bma250e},
+       {"bma222e",             bma222e},
+       {"bma280",              bma280},
+       {}
+};
+
+MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
+
+static struct i2c_driver bmc150_accel_driver = {
+       .driver = {
+               .name   = "bmc150_accel_i2c",
+               .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
+               .pm     = &bmc150_accel_pm_ops,
+       },
+       .probe          = bmc150_accel_probe,
+       .remove         = bmc150_accel_remove,
+       .id_table       = bmc150_accel_id,
+};
+module_i2c_driver(bmc150_accel_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");