Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / misc / bmp085-i2c.c

diff --git a/kernel/drivers/misc/bmp085-i2c.c b/kernel/drivers/misc/bmp085-i2c.c
new file mode 100644 (file)
index 0000000..a7c1629
--- /dev/null
+++ b/kernel/drivers/misc/bmp085-i2c.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2012  Bosch Sensortec GmbH
+ * Copyright (c) 2012  Unixphere AB
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include "bmp085.h"
+
+#define BMP085_I2C_ADDRESS     0x77
+
+static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS,
+                                                       I2C_CLIENT_END };
+
+static int bmp085_i2c_detect(struct i2c_client *client,
+                            struct i2c_board_info *info)
+{
+       if (client->addr != BMP085_I2C_ADDRESS)
+               return -ENODEV;
+
+       return bmp085_detect(&client->dev);
+}
+
+static int bmp085_i2c_probe(struct i2c_client *client,
+                                     const struct i2c_device_id *id)
+{
+       int err;
+       struct regmap *regmap = devm_regmap_init_i2c(client,
+                                                    &bmp085_regmap_config);
+
+       if (IS_ERR(regmap)) {
+               err = PTR_ERR(regmap);
+               dev_err(&client->dev, "Failed to init regmap: %d\n", err);
+               return err;
+       }
+
+       return bmp085_probe(&client->dev, regmap, client->irq);
+}
+
+static int bmp085_i2c_remove(struct i2c_client *client)
+{
+       return bmp085_remove(&client->dev);
+}
+
+static const struct i2c_device_id bmp085_id[] = {
+       { BMP085_NAME, 0 },
+       { "bmp180", 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, bmp085_id);
+
+static struct i2c_driver bmp085_i2c_driver = {
+       .driver = {
+               .owner  = THIS_MODULE,
+               .name   = BMP085_NAME,
+       },
+       .id_table       = bmp085_id,
+       .probe          = bmp085_i2c_probe,
+       .remove         = bmp085_i2c_remove,
+
+       .detect         = bmp085_i2c_detect,
+       .address_list   = normal_i2c
+};
+
+module_i2c_driver(bmp085_i2c_driver);
+
+MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>");
+MODULE_DESCRIPTION("BMP085 I2C bus driver");
+MODULE_LICENSE("GPL");