1 #ifndef _LINUX_RESET_CONTROLLER_H_
2 #define _LINUX_RESET_CONTROLLER_H_
4 #include <linux/list.h>
6 struct reset_controller_dev
;
9 * struct reset_control_ops
11 * @reset: for self-deasserting resets, does all necessary
12 * things to reset the device
13 * @assert: manually assert the reset line, if supported
14 * @deassert: manually deassert the reset line, if supported
16 struct reset_control_ops
{
17 int (*reset
)(struct reset_controller_dev
*rcdev
, unsigned long id
);
18 int (*assert)(struct reset_controller_dev
*rcdev
, unsigned long id
);
19 int (*deassert
)(struct reset_controller_dev
*rcdev
, unsigned long id
);
24 struct of_phandle_args
;
27 * struct reset_controller_dev - reset controller entity that might
28 * provide multiple reset controls
29 * @ops: a pointer to device specific struct reset_control_ops
30 * @owner: kernel module of the reset controller driver
31 * @list: internal list of reset controller devices
32 * @of_node: corresponding device tree node as phandle target
33 * @of_reset_n_cells: number of cells in reset line specifiers
34 * @of_xlate: translation function to translate from specifier as found in the
35 * device tree to id as given to the reset control ops
36 * @nr_resets: number of reset controls in this reset controller device
38 struct reset_controller_dev
{
39 struct reset_control_ops
*ops
;
41 struct list_head list
;
42 struct device_node
*of_node
;
44 int (*of_xlate
)(struct reset_controller_dev
*rcdev
,
45 const struct of_phandle_args
*reset_spec
);
46 unsigned int nr_resets
;
49 int reset_controller_register(struct reset_controller_dev
*rcdev
);
50 void reset_controller_unregister(struct reset_controller_dev
*rcdev
);
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