1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Congatec Board Controller driver definitions
4 *
5 * Copyright (C) 2024 Bootlin
6 * Author: Thomas Richard <thomas.richard@bootlin.com>
7 */
8
9#ifndef _LINUX_MFD_CGBC_H_
10
11/**
12 * struct cgbc_version - Board Controller device version structure
13 * @feature: Board Controller feature number
14 * @major: Board Controller major revision
15 * @minor: Board Controller minor revision
16 */
17struct cgbc_version {
18 unsigned char feature;
19 unsigned char major;
20 unsigned char minor;
21};
22
23/**
24 * struct cgbc_device_data - Internal representation of the Board Controller device
25 * @io_session: Pointer to the session IO memory
26 * @io_cmd: Pointer to the command IO memory
27 * @session: Session id returned by the Board Controller
28 * @dev: Pointer to kernel device structure
29 * @cgbc_version: Board Controller version structure
30 * @mutex: Board Controller mutex
31 */
32struct cgbc_device_data {
33 void __iomem *io_session;
34 void __iomem *io_cmd;
35 u8 session;
36 struct device *dev;
37 struct cgbc_version version;
38 struct mutex lock;
39};
40
41int cgbc_command(struct cgbc_device_data *cgbc, void *cmd, unsigned int cmd_size,
42 void *data, unsigned int data_size, u8 *status);
43
44#endif /*_LINUX_MFD_CGBC_H_*/
45

source code of linux/include/linux/mfd/cgbc.h