1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2016 Maxime Ripard. All rights reserved.
4 */
5
6 #ifndef _CCU_NM_H_
7 #define _CCU_NM_H_
8
9 #include <linux/clk-provider.h>
10
11 #include "ccu_common.h"
12 #include "ccu_div.h"
13 #include "ccu_frac.h"
14 #include "ccu_mult.h"
15 #include "ccu_sdm.h"
16
17 /*
18 * struct ccu_nm - Definition of an N-M clock
19 *
20 * Clocks based on the formula parent * N / M
21 */
22 struct ccu_nm {
23 u32 enable;
24 u32 lock;
25
26 struct ccu_mult_internal n;
27 struct ccu_div_internal m;
28 struct ccu_frac_internal frac;
29 struct ccu_sdm_internal sdm;
30
31 unsigned int fixed_post_div;
32 unsigned int min_rate;
33 unsigned int max_rate;
34
35 struct ccu_common common;
36 };
37
38 #define SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(_struct, _name, _parent, _reg, \
39 _nshift, _nwidth, \
40 _mshift, _mwidth, \
41 _sdm_table, _sdm_en, \
42 _sdm_reg, _sdm_reg_en, \
43 _gate, _lock, _flags) \
44 struct ccu_nm _struct = { \
45 .enable = _gate, \
46 .lock = _lock, \
47 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
48 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
49 .sdm = _SUNXI_CCU_SDM(_sdm_table, _sdm_en, \
50 _sdm_reg, _sdm_reg_en),\
51 .common = { \
52 .reg = _reg, \
53 .features = CCU_FEATURE_SIGMA_DELTA_MOD, \
54 .hw.init = CLK_HW_INIT(_name, \
55 _parent, \
56 &ccu_nm_ops, \
57 _flags), \
58 }, \
59 }
60
61 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(_struct, _name, _parent, _reg, \
62 _nshift, _nwidth, \
63 _mshift, _mwidth, \
64 _frac_en, _frac_sel, \
65 _frac_rate_0, _frac_rate_1, \
66 _gate, _lock, _flags) \
67 struct ccu_nm _struct = { \
68 .enable = _gate, \
69 .lock = _lock, \
70 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
71 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
72 .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \
73 _frac_rate_0, \
74 _frac_rate_1), \
75 .common = { \
76 .reg = _reg, \
77 .features = CCU_FEATURE_FRACTIONAL, \
78 .hw.init = CLK_HW_INIT(_name, \
79 _parent, \
80 &ccu_nm_ops, \
81 _flags), \
82 }, \
83 }
84
85 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN(_struct, _name, _parent, \
86 _reg, _min_rate, \
87 _nshift, _nwidth, \
88 _mshift, _mwidth, \
89 _frac_en, _frac_sel, \
90 _frac_rate_0, _frac_rate_1,\
91 _gate, _lock, _flags) \
92 struct ccu_nm _struct = { \
93 .enable = _gate, \
94 .lock = _lock, \
95 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
96 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
97 .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \
98 _frac_rate_0, \
99 _frac_rate_1), \
100 .min_rate = _min_rate, \
101 .common = { \
102 .reg = _reg, \
103 .features = CCU_FEATURE_FRACTIONAL, \
104 .hw.init = CLK_HW_INIT(_name, \
105 _parent, \
106 &ccu_nm_ops, \
107 _flags), \
108 }, \
109 }
110
111 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(_struct, _name, \
112 _parent, _reg, \
113 _min_rate, _max_rate, \
114 _nshift, _nwidth, \
115 _mshift, _mwidth, \
116 _frac_en, _frac_sel, \
117 _frac_rate_0, \
118 _frac_rate_1, \
119 _gate, _lock, _flags) \
120 struct ccu_nm _struct = { \
121 .enable = _gate, \
122 .lock = _lock, \
123 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
124 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
125 .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \
126 _frac_rate_0, \
127 _frac_rate_1), \
128 .min_rate = _min_rate, \
129 .max_rate = _max_rate, \
130 .common = { \
131 .reg = _reg, \
132 .features = CCU_FEATURE_FRACTIONAL, \
133 .hw.init = CLK_HW_INIT(_name, \
134 _parent, \
135 &ccu_nm_ops, \
136 _flags), \
137 }, \
138 }
139
140 #define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
141 _nshift, _nwidth, \
142 _mshift, _mwidth, \
143 _gate, _lock, _flags) \
144 struct ccu_nm _struct = { \
145 .enable = _gate, \
146 .lock = _lock, \
147 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
148 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
149 .common = { \
150 .reg = _reg, \
151 .hw.init = CLK_HW_INIT(_name, \
152 _parent, \
153 &ccu_nm_ops, \
154 _flags), \
155 }, \
156 }
157
158 static inline struct ccu_nm *hw_to_ccu_nm(struct clk_hw *hw)
159 {
160 struct ccu_common *common = hw_to_ccu_common(hw);
161
162 return container_of(common, struct ccu_nm, common);
163 }
164
165 extern const struct clk_ops ccu_nm_ops;
166
167 #endif /* _CCU_NM_H_ */