drivers:misc: Setup gamepad_reset gpio only on loki
[linux-3.10.git] / drivers / misc / bmp085-i2c.c
1 /*
2  * Copyright (c) 2012  Bosch Sensortec GmbH
3  * Copyright (c) 2012  Unixphere AB
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  */
19
20 #include <linux/module.h>
21 #include <linux/i2c.h>
22 #include <linux/err.h>
23 #include "bmp085.h"
24
25 #define BMP085_I2C_ADDRESS      0x77
26
27 static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS,
28                                                         I2C_CLIENT_END };
29
30 static int bmp085_i2c_detect(struct i2c_client *client,
31                              struct i2c_board_info *info)
32 {
33         if (client->addr != BMP085_I2C_ADDRESS)
34                 return -ENODEV;
35
36         return bmp085_detect(&client->dev);
37 }
38
39 static int bmp085_i2c_probe(struct i2c_client *client,
40                                       const struct i2c_device_id *id)
41 {
42         int err;
43         struct regmap *regmap = devm_regmap_init_i2c(client,
44                                                      &bmp085_regmap_config);
45
46         if (IS_ERR(regmap)) {
47                 err = PTR_ERR(regmap);
48                 dev_err(&client->dev, "Failed to init regmap: %d\n", err);
49                 return err;
50         }
51
52         return bmp085_probe(&client->dev, regmap);
53 }
54
55 static int bmp085_i2c_remove(struct i2c_client *client)
56 {
57         return bmp085_remove(&client->dev);
58 }
59
60 static const struct i2c_device_id bmp085_id[] = {
61         { BMP085_NAME, 0 },
62         { "bmp180", 0 },
63         { }
64 };
65 MODULE_DEVICE_TABLE(i2c, bmp085_id);
66
67 static struct i2c_driver bmp085_i2c_driver = {
68         .driver = {
69                 .owner  = THIS_MODULE,
70                 .name   = BMP085_NAME,
71         },
72         .id_table       = bmp085_id,
73         .probe          = bmp085_i2c_probe,
74         .remove         = bmp085_i2c_remove,
75
76         .detect         = bmp085_i2c_detect,
77         .address_list   = normal_i2c
78 };
79
80 module_i2c_driver(bmp085_i2c_driver);
81
82 MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>");
83 MODULE_DESCRIPTION("BMP085 I2C bus driver");
84 MODULE_LICENSE("GPL");