rsmu.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * Core interface for Renesas Synchronization Management Unit (SMU) devices.
 4 *
 5 * Copyright (C) 2021 Integrated Device Technology, Inc., a Renesas Company.
 6 */
 7
 8#ifndef __LINUX_MFD_RSMU_H
 9#define __LINUX_MFD_RSMU_H
10
11#define RSMU_MAX_WRITE_COUNT	(255)
12#define RSMU_MAX_READ_COUNT	(255)
13
14/* The supported devices are ClockMatrix, Sabre and SnowLotus */
15enum rsmu_type {
16	RSMU_CM		= 0x34000,
17	RSMU_SABRE	= 0x33810,
18	RSMU_SL		= 0x19850,
19};
20
21/**
22 *
23 * struct rsmu_ddata - device data structure for sub devices.
24 *
25 * @dev:    i2c/spi device.
26 * @regmap: i2c/spi bus access.
27 * @lock:   mutex used by sub devices to make sure a series of
28 *          bus access requests are not interrupted.
29 * @type:   RSMU device type.
30 * @page:   i2c/spi bus driver internal use only.
31 */
32struct rsmu_ddata {
33	struct device *dev;
34	struct regmap *regmap;
35	struct mutex lock;
36	enum rsmu_type type;
37	u32 page;
38};
39#endif /*  __LINUX_MFD_RSMU_H */