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