1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2016 Maxime Ripard. All rights reserved.
4 */
5
6#ifndef _CCU_NKM_H_
7#define _CCU_NKM_H_
8
9#include <linux/clk-provider.h>
10
11#include "ccu_common.h"
12#include "ccu_div.h"
13#include "ccu_mult.h"
14
15/*
16 * struct ccu_nkm - Definition of an N-K-M clock
17 *
18 * Clocks based on the formula parent * N * K / M
19 */
20struct ccu_nkm {
21 u32 enable;
22 u32 lock;
23
24 struct ccu_mult_internal n;
25 struct ccu_mult_internal k;
26 struct ccu_div_internal m;
27 struct ccu_mux_internal mux;
28
29 unsigned int fixed_post_div;
30 unsigned long max_m_n_ratio;
31 unsigned long min_parent_m_ratio;
32
33 struct ccu_common common;
34};
35
36#define SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(_struct, _name, _parents, _reg, \
37 _nshift, _nwidth, \
38 _kshift, _kwidth, \
39 _mshift, _mwidth, \
40 _muxshift, _muxwidth, \
41 _gate, _lock, _flags) \
42 struct ccu_nkm _struct = { \
43 .enable = _gate, \
44 .lock = _lock, \
45 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
46 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
47 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
48 .mux = _SUNXI_CCU_MUX(_muxshift, _muxwidth), \
49 .common = { \
50 .reg = _reg, \
51 .hw.init = CLK_HW_INIT_PARENTS(_name, \
52 _parents, \
53 &ccu_nkm_ops, \
54 _flags), \
55 }, \
56 }
57
58#define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
59 _nshift, _nwidth, \
60 _kshift, _kwidth, \
61 _mshift, _mwidth, \
62 _gate, _lock, _flags) \
63 struct ccu_nkm _struct = { \
64 .enable = _gate, \
65 .lock = _lock, \
66 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
67 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
68 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
69 .common = { \
70 .reg = _reg, \
71 .hw.init = CLK_HW_INIT(_name, \
72 _parent, \
73 &ccu_nkm_ops, \
74 _flags), \
75 }, \
76 }
77
78static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw)
79{
80 struct ccu_common *common = hw_to_ccu_common(hw);
81
82 return container_of(common, struct ccu_nkm, common);
83}
84
85extern const struct clk_ops ccu_nkm_ops;
86
87#endif /* _CCU_NKM_H_ */
88

source code of linux/drivers/clk/sunxi-ng/ccu_nkm.h