| /* |
| * Simple Reset Controller ops |
| * |
| * Based on Allwinner SoCs Reset Controller driver |
| * |
| * Copyright 2013 Maxime Ripard |
| * |
| * Maxime Ripard <maxime.ripard@free-electrons.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #ifndef __RESET_SIMPLE_H__ |
| #define __RESET_SIMPLE_H__ |
| |
| #include <linux/io.h> |
| #include <linux/reset-controller.h> |
| #include <linux/spinlock.h> |
| |
| /** |
| * struct reset_simple_data - driver data for simple reset controllers |
| * @lock: spinlock to protect registers during read-modify-write cycles |
| * @membase: memory mapped I/O register range |
| * @rcdev: reset controller device base structure |
| * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits |
| * are set to assert the reset. Note that this says nothing about |
| * the voltage level of the actual reset line. |
| * @status_active_low: if true, bits read back as cleared while the reset is |
| * asserted. Otherwise, bits read back as set while the |
| * reset is asserted. |
| */ |
| struct reset_simple_data { |
| spinlock_t lock; |
| void __iomem *membase; |
| struct reset_controller_dev rcdev; |
| bool active_low; |
| bool status_active_low; |
| }; |
| |
| extern const struct reset_control_ops reset_simple_ops; |
| |
| #endif /* __RESET_SIMPLE_H__ */ |