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1 | /* |
2 | * Hardware monitoring driver for Maxim MAX16064 | |
3 | * | |
4 | * Copyright (c) 2011 Ericsson AB. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include <linux/kernel.h> | |
22 | #include <linux/module.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/err.h> | |
25 | #include <linux/i2c.h> | |
26 | #include "pmbus.h" | |
27 | ||
28 | static struct pmbus_driver_info max16064_info = { | |
29 | .pages = 4, | |
30 | .direct[PSC_VOLTAGE_IN] = true, | |
31 | .direct[PSC_VOLTAGE_OUT] = true, | |
32 | .direct[PSC_TEMPERATURE] = true, | |
33 | .m[PSC_VOLTAGE_IN] = 19995, | |
34 | .b[PSC_VOLTAGE_IN] = 0, | |
35 | .R[PSC_VOLTAGE_IN] = -1, | |
36 | .m[PSC_VOLTAGE_OUT] = 19995, | |
37 | .b[PSC_VOLTAGE_OUT] = 0, | |
38 | .R[PSC_VOLTAGE_OUT] = -1, | |
39 | .m[PSC_TEMPERATURE] = -7612, | |
40 | .b[PSC_TEMPERATURE] = 335, | |
41 | .R[PSC_TEMPERATURE] = -3, | |
42 | .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP | |
43 | | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP, | |
44 | .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
45 | .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
46 | .func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, | |
47 | }; | |
48 | ||
49 | static int max16064_probe(struct i2c_client *client, | |
50 | const struct i2c_device_id *id) | |
51 | { | |
52 | return pmbus_do_probe(client, id, &max16064_info); | |
53 | } | |
54 | ||
55 | static int max16064_remove(struct i2c_client *client) | |
56 | { | |
57 | return pmbus_do_remove(client); | |
58 | } | |
59 | ||
60 | static const struct i2c_device_id max16064_id[] = { | |
61 | {"max16064", 0}, | |
62 | {} | |
63 | }; | |
64 | ||
65 | MODULE_DEVICE_TABLE(i2c, max16064_id); | |
66 | ||
67 | /* This is the driver that will be inserted */ | |
68 | static struct i2c_driver max16064_driver = { | |
69 | .driver = { | |
70 | .name = "max16064", | |
71 | }, | |
72 | .probe = max16064_probe, | |
73 | .remove = max16064_remove, | |
74 | .id_table = max16064_id, | |
75 | }; | |
76 | ||
77 | static int __init max16064_init(void) | |
78 | { | |
79 | return i2c_add_driver(&max16064_driver); | |
80 | } | |
81 | ||
82 | static void __exit max16064_exit(void) | |
83 | { | |
84 | i2c_del_driver(&max16064_driver); | |
85 | } | |
86 | ||
87 | MODULE_AUTHOR("Guenter Roeck"); | |
88 | MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064"); | |
89 | MODULE_LICENSE("GPL"); | |
90 | module_init(max16064_init); | |
91 | module_exit(max16064_exit); |