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 */
20 struct 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
31 struct ccu_common common;
32 };
33
34 #define SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(_struct, _name, _parents, _reg, \
35 _nshift, _nwidth, \
36 _kshift, _kwidth, \
37 _mshift, _mwidth, \
38 _muxshift, _muxwidth, \
39 _gate, _lock, _flags) \
40 struct ccu_nkm _struct = { \
41 .enable = _gate, \
42 .lock = _lock, \
43 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
44 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
45 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
46 .mux = _SUNXI_CCU_MUX(_muxshift, _muxwidth), \
47 .common = { \
48 .reg = _reg, \
49 .hw.init = CLK_HW_INIT_PARENTS(_name, \
50 _parents, \
51 &ccu_nkm_ops, \
52 _flags), \
53 }, \
54 }
55
56 #define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
57 _nshift, _nwidth, \
58 _kshift, _kwidth, \
59 _mshift, _mwidth, \
60 _gate, _lock, _flags) \
61 struct ccu_nkm _struct = { \
62 .enable = _gate, \
63 .lock = _lock, \
64 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
65 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
66 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
67 .common = { \
68 .reg = _reg, \
69 .hw.init = CLK_HW_INIT(_name, \
70 _parent, \
71 &ccu_nkm_ops, \
72 _flags), \
73 }, \
74 }
75
76 static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw)
77 {
78 struct ccu_common *common = hw_to_ccu_common(hw);
79
80 return container_of(common, struct ccu_nkm, common);
81 }
82
83 extern const struct clk_ops ccu_nkm_ops;
84
85 #endif /* _CCU_NKM_H_ */