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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2018 MediaTek Inc.
4 * Author: Owen Chen <owen.chen@mediatek.com>
5 */
6
7#ifndef __DRV_CLK_MTK_MUX_H
8#define __DRV_CLK_MTK_MUX_H
9
10#include <linux/spinlock.h>
11#include <linux/types.h>
12
13struct clk;
14struct clk_onecell_data;
15struct clk_ops;
16struct device_node;
17
18struct mtk_mux {
19 int id;
20 const char *name;
21 const char * const *parent_names;
22 unsigned int flags;
23
24 u32 mux_ofs;
25 u32 set_ofs;
26 u32 clr_ofs;
27 u32 upd_ofs;
28
29 u8 mux_shift;
30 u8 mux_width;
31 u8 gate_shift;
32 s8 upd_shift;
33
34 const struct clk_ops *ops;
35 signed char num_parents;
36};
37
38#define GATE_CLR_SET_UPD_FLAGS(_id, _name, _parents, _mux_ofs, \
39 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
40 _gate, _upd_ofs, _upd, _flags, _ops) { \
41 .id = _id, \
42 .name = _name, \
43 .mux_ofs = _mux_ofs, \
44 .set_ofs = _mux_set_ofs, \
45 .clr_ofs = _mux_clr_ofs, \
46 .upd_ofs = _upd_ofs, \
47 .mux_shift = _shift, \
48 .mux_width = _width, \
49 .gate_shift = _gate, \
50 .upd_shift = _upd, \
51 .parent_names = _parents, \
52 .num_parents = ARRAY_SIZE(_parents), \
53 .flags = _flags, \
54 .ops = &_ops, \
55 }
56
57extern const struct clk_ops mtk_mux_clr_set_upd_ops;
58extern const struct clk_ops mtk_mux_gate_clr_set_upd_ops;
59
60#define MUX_GATE_CLR_SET_UPD_FLAGS(_id, _name, _parents, _mux_ofs, \
61 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
62 _gate, _upd_ofs, _upd, _flags) \
63 GATE_CLR_SET_UPD_FLAGS(_id, _name, _parents, _mux_ofs, \
64 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
65 _gate, _upd_ofs, _upd, _flags, \
66 mtk_mux_gate_clr_set_upd_ops)
67
68#define MUX_GATE_CLR_SET_UPD(_id, _name, _parents, _mux_ofs, \
69 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
70 _gate, _upd_ofs, _upd) \
71 MUX_GATE_CLR_SET_UPD_FLAGS(_id, _name, _parents, \
72 _mux_ofs, _mux_set_ofs, _mux_clr_ofs, _shift, \
73 _width, _gate, _upd_ofs, _upd, \
74 CLK_SET_RATE_PARENT)
75
76#define MUX_CLR_SET_UPD(_id, _name, _parents, _mux_ofs, \
77 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
78 _upd_ofs, _upd) \
79 GATE_CLR_SET_UPD_FLAGS(_id, _name, _parents, _mux_ofs, \
80 _mux_set_ofs, _mux_clr_ofs, _shift, _width, \
81 0, _upd_ofs, _upd, CLK_SET_RATE_PARENT, \
82 mtk_mux_clr_set_upd_ops)
83
84int mtk_clk_register_muxes(const struct mtk_mux *muxes,
85 int num, struct device_node *node,
86 spinlock_t *lock,
87 struct clk_onecell_data *clk_data);
88
89void mtk_clk_unregister_muxes(const struct mtk_mux *muxes, int num,
90 struct clk_onecell_data *clk_data);
91
92#endif /* __DRV_CLK_MTK_MUX_H */