1 | /* |
2 | * Hardware monitoring driver for PMBus devices |
3 | * |
4 | * Copyright (c) 2010, 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 | #ifndef _PMBUS_H_ |
22 | #define _PMBUS_H_ |
23 | |
24 | /* flags */ |
25 | |
26 | /* |
27 | * PMBUS_SKIP_STATUS_CHECK |
28 | * |
29 | * During register detection, skip checking the status register for |
30 | * communication or command errors. |
31 | * |
32 | * Some PMBus chips respond with valid data when trying to read an unsupported |
33 | * register. For such chips, checking the status register is mandatory when |
34 | * trying to determine if a chip register exists or not. |
35 | * Other PMBus chips don't support the STATUS_CML register, or report |
36 | * communication errors for no explicable reason. For such chips, checking |
37 | * the status register must be disabled. |
38 | */ |
39 | #define PMBUS_SKIP_STATUS_CHECK (1 << 0) |
40 | |
41 | struct pmbus_platform_data { |
42 | u32 flags; /* Device specific flags */ |
43 | |
44 | /* regulator support */ |
45 | int num_regulators; |
46 | struct regulator_init_data *reg_init_data; |
47 | }; |
48 | |
49 | #endif /* _PMBUS_H_ */ |
50 | |