Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 * struct rsmu_ddata - device data structure for sub devices.
23 *
24 * @dev: i2c/spi device.
25 * @regmap: i2c/spi bus access.
26 * @lock: mutex used by sub devices to make sure a series of
27 * bus access requests are not interrupted.
28 * @type: RSMU device type.
29 * @page: i2c/spi bus driver internal use only.
30 */
31struct rsmu_ddata {
32 struct device *dev;
33 struct regmap *regmap;
34 struct mutex lock;
35 enum rsmu_type type;
36 u32 page;
37};
38#endif /* __LINUX_MFD_RSMU_H */