pmbus.h
1.15 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Hardware monitoring driver for PMBus devices
*
* Copyright (c) 2010, 2011 Ericsson AB.
*/
#ifndef _PMBUS_H_
#define _PMBUS_H_
#include <linux/bits.h>
/* flags */
/*
* PMBUS_SKIP_STATUS_CHECK
*
* During register detection, skip checking the status register for
* communication or command errors.
*
* Some PMBus chips respond with valid data when trying to read an unsupported
* register. For such chips, checking the status register is mandatory when
* trying to determine if a chip register exists or not.
* Other PMBus chips don't support the STATUS_CML register, or report
* communication errors for no explicable reason. For such chips, checking
* the status register must be disabled.
*/
#define PMBUS_SKIP_STATUS_CHECK BIT(0)
/*
* PMBUS_WRITE_PROTECTED
* Set if the chip is write protected and write protection is not determined
* by the standard WRITE_PROTECT command.
*/
#define PMBUS_WRITE_PROTECTED BIT(1)
struct pmbus_platform_data {
u32 flags; /* Device specific flags */
/* regulator support */
int num_regulators;
struct regulator_init_data *reg_init_data;
};
#endif /* _PMBUS_H_ */