| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Congatec Board Controller driver definitions |
| * |
| * Copyright (C) 2024 Bootlin |
| * Author: Thomas Richard <[email protected]> |
| */ |
| |
| #ifndef _LINUX_MFD_CGBC_H_ |
| |
| /** |
| * struct cgbc_version - Board Controller device version structure |
| * @feature: Board Controller feature number |
| * @major: Board Controller major revision |
| * @minor: Board Controller minor revision |
| */ |
| struct cgbc_version { |
| unsigned char feature; |
| unsigned char major; |
| unsigned char minor; |
| }; |
| |
| /** |
| * struct cgbc_device_data - Internal representation of the Board Controller device |
| * @io_session: Pointer to the session IO memory |
| * @io_cmd: Pointer to the command IO memory |
| * @session: Session id returned by the Board Controller |
| * @dev: Pointer to kernel device structure |
| * @cgbc_version: Board Controller version structure |
| * @mutex: Board Controller mutex |
| */ |
| struct cgbc_device_data { |
| void __iomem *io_session; |
| void __iomem *io_cmd; |
| u8 session; |
| struct device *dev; |
| struct cgbc_version version; |
| struct mutex lock; |
| }; |
| |
| int cgbc_command(struct cgbc_device_data *cgbc, void *cmd, unsigned int cmd_size, |
| void *data, unsigned int data_size, u8 *status); |
| |
| #endif /*_LINUX_MFD_CGBC_H_*/ |
