xref: /openbmc/linux/drivers/clk/sunxi-ng/ccu_nm.h (revision c0380d14)
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_FEAT(_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 						 _features)		\
121 	struct ccu_nm _struct = {					\
122 		.enable		= _gate,				\
123 		.lock		= _lock,				\
124 		.n		= _SUNXI_CCU_MULT(_nshift, _nwidth),	\
125 		.m		= _SUNXI_CCU_DIV(_mshift, _mwidth),	\
126 		.frac		= _SUNXI_CCU_FRAC(_frac_en, _frac_sel,	\
127 						  _frac_rate_0,		\
128 						  _frac_rate_1),	\
129 		.min_rate	= _min_rate,				\
130 		.max_rate	= _max_rate,				\
131 		.common		= {					\
132 			.reg		= _reg,				\
133 			.features	= _features,			\
134 			.hw.init	= CLK_HW_INIT(_name,		\
135 						      _parent,		\
136 						      &ccu_nm_ops,	\
137 						      _flags),		\
138 		},							\
139 	}
140 
141 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(_struct, _name,	\
142 						 _parent, _reg,		\
143 						 _min_rate, _max_rate,	\
144 						 _nshift, _nwidth,	\
145 						 _mshift, _mwidth,	\
146 						 _frac_en, _frac_sel,	\
147 						 _frac_rate_0,		\
148 						 _frac_rate_1,		\
149 						 _gate, _lock, _flags)	\
150 	SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_FEAT(_struct, _name,	\
151 						_parent, _reg,		\
152 						_min_rate, _max_rate,	\
153 						_nshift, _nwidth,	\
154 						_mshift, _mwidth,	\
155 						_frac_en, _frac_sel,	\
156 						_frac_rate_0,		\
157 						_frac_rate_1,		\
158 						_gate, _lock, _flags,	\
159 						CCU_FEATURE_FRACTIONAL)
160 
161 #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_CLOSEST(_struct, _name, \
162 						 _parent, _reg,		\
163 						 _min_rate, _max_rate,	\
164 						 _nshift, _nwidth,	\
165 						 _mshift, _mwidth,	\
166 						 _frac_en, _frac_sel,	\
167 						 _frac_rate_0,		\
168 						 _frac_rate_1,		\
169 						 _gate, _lock, _flags)	\
170 	SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_FEAT(_struct, _name,	\
171 						_parent, _reg,		\
172 						_min_rate, _max_rate,	\
173 						_nshift, _nwidth,	\
174 						_mshift, _mwidth,	\
175 						_frac_en, _frac_sel,	\
176 						_frac_rate_0,		\
177 						_frac_rate_1,		\
178 						_gate, _lock, _flags,	\
179 						CCU_FEATURE_FRACTIONAL |\
180 						CCU_FEATURE_CLOSEST_RATE)
181 
182 #define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg,	\
183 				    _nshift, _nwidth,			\
184 				    _mshift, _mwidth,			\
185 				    _gate, _lock, _flags)		\
186 	struct ccu_nm _struct = {					\
187 		.enable		= _gate,				\
188 		.lock		= _lock,				\
189 		.n		= _SUNXI_CCU_MULT(_nshift, _nwidth),	\
190 		.m		= _SUNXI_CCU_DIV(_mshift, _mwidth),	\
191 		.common		= {					\
192 			.reg		= _reg,				\
193 			.hw.init	= CLK_HW_INIT(_name,		\
194 						      _parent,		\
195 						      &ccu_nm_ops,	\
196 						      _flags),		\
197 		},							\
198 	}
199 
hw_to_ccu_nm(struct clk_hw * hw)200 static inline struct ccu_nm *hw_to_ccu_nm(struct clk_hw *hw)
201 {
202 	struct ccu_common *common = hw_to_ccu_common(hw);
203 
204 	return container_of(common, struct ccu_nm, common);
205 }
206 
207 extern const struct clk_ops ccu_nm_ops;
208 
209 #endif /* _CCU_NM_H_ */
210