projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 81c22ad0 PZ |
1 | /* |
| 2 | * Simple Reset Controller ops | |
| 3 | * | |
| 4 | * Based on Allwinner SoCs Reset Controller driver | |
| 5 | * | |
| 6 | * Copyright 2013 Maxime Ripard | |
| 7 | * | |
| 8 | * Maxime Ripard <maxime.ripard@free-electrons.com> | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License as published by | |
| 12 | * the Free Software Foundation; either version 2 of the License, or | |
| 13 | * (at your option) any later version. | |
| 14 | */ | |
| 15 | ||
| 16 | #ifndef __RESET_SIMPLE_H__ | |
| 17 | #define __RESET_SIMPLE_H__ | |
| 18 | ||
| 19 | #include <linux/io.h> | |
| 20 | #include <linux/reset-controller.h> | |
| 21 | #include <linux/spinlock.h> | |
| 22 | ||
| 23 | /** | |
| 24 | * struct reset_simple_data - driver data for simple reset controllers | |
| 25 | * @lock: spinlock to protect registers during read-modify-write cycles | |
| 26 | * @membase: memory mapped I/O register range | |
| 27 | * @rcdev: reset controller device base structure | |
| 28 | * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits | |
| 29 | * are set to assert the reset. Note that this says nothing about | |
| 30 | * the voltage level of the actual reset line. | |
| 31 | */ | |
| 32 | struct reset_simple_data { | |
| 33 | spinlock_t lock; | |
| 34 | void __iomem *membase; | |
| 35 | struct reset_controller_dev rcdev; | |
| 36 | bool active_low; | |
| 37 | }; | |
| 38 | ||
| 39 | extern const struct reset_control_ops reset_simple_ops; | |
| 40 | ||
| 41 | #endif /* __RESET_SIMPLE_H__ */ |