1 /* SPDX-License-Identifier: GPL-2.0+ */
2 //
3 // OWL composite clock driver
4 //
5 // Copyright (c) 2014 Actions Semi Inc.
6 // Author: David Liu <liuwei@actions-semi.com>
7 //
8 // Copyright (c) 2018 Linaro Ltd.
9 // Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
10
11 #ifndef _OWL_COMPOSITE_H_
12 #define _OWL_COMPOSITE_H_
13
14 #include "owl-common.h"
15 #include "owl-mux.h"
16 #include "owl-gate.h"
17 #include "owl-factor.h"
18 #include "owl-fixed-factor.h"
19 #include "owl-divider.h"
20
21 union owl_rate {
22 struct owl_divider_hw div_hw;
23 struct owl_factor_hw factor_hw;
24 struct clk_fixed_factor fix_fact_hw;
25 };
26
27 struct owl_composite {
28 struct owl_mux_hw mux_hw;
29 struct owl_gate_hw gate_hw;
30 union owl_rate rate;
31
32 const struct clk_ops *fix_fact_ops;
33
34 struct owl_clk_common common;
35 };
36
37 #define OWL_COMP_DIV(_struct, _name, _parent, \
38 _mux, _gate, _div, _flags) \
39 struct owl_composite _struct = { \
40 .mux_hw = _mux, \
41 .gate_hw = _gate, \
42 .rate.div_hw = _div, \
43 .common = { \
44 .regmap = NULL, \
45 .hw.init = CLK_HW_INIT_PARENTS(_name, \
46 _parent, \
47 &owl_comp_div_ops,\
48 _flags), \
49 }, \
50 }
51
52 #define OWL_COMP_DIV_FIXED(_struct, _name, _parent, \
53 _gate, _div, _flags) \
54 struct owl_composite _struct = { \
55 .gate_hw = _gate, \
56 .rate.div_hw = _div, \
57 .common = { \
58 .regmap = NULL, \
59 .hw.init = CLK_HW_INIT(_name, \
60 _parent, \
61 &owl_comp_div_ops,\
62 _flags), \
63 }, \
64 }
65
66 #define OWL_COMP_FACTOR(_struct, _name, _parent, \
67 _mux, _gate, _factor, _flags) \
68 struct owl_composite _struct = { \
69 .mux_hw = _mux, \
70 .gate_hw = _gate, \
71 .rate.factor_hw = _factor, \
72 .common = { \
73 .regmap = NULL, \
74 .hw.init = CLK_HW_INIT_PARENTS(_name, \
75 _parent, \
76 &owl_comp_fact_ops,\
77 _flags), \
78 }, \
79 }
80
81 #define OWL_COMP_FIXED_FACTOR(_struct, _name, _parent, \
82 _gate, _mul, _div, _flags) \
83 struct owl_composite _struct = { \
84 .gate_hw = _gate, \
85 .rate.fix_fact_hw.mult = _mul, \
86 .rate.fix_fact_hw.div = _div, \
87 .fix_fact_ops = &clk_fixed_factor_ops, \
88 .common = { \
89 .regmap = NULL, \
90 .hw.init = CLK_HW_INIT(_name, \
91 _parent, \
92 &owl_comp_fix_fact_ops,\
93 _flags), \
94 }, \
95 }
96
97 #define OWL_COMP_PASS(_struct, _name, _parent, \
98 _mux, _gate, _flags) \
99 struct owl_composite _struct = { \
100 .mux_hw = _mux, \
101 .gate_hw = _gate, \
102 .common = { \
103 .regmap = NULL, \
104 .hw.init = CLK_HW_INIT_PARENTS(_name, \
105 _parent, \
106 &owl_comp_pass_ops,\
107 _flags), \
108 }, \
109 }
110
hw_to_owl_comp(const struct clk_hw * hw)111 static inline struct owl_composite *hw_to_owl_comp(const struct clk_hw *hw)
112 {
113 struct owl_clk_common *common = hw_to_owl_clk_common(hw);
114
115 return container_of(common, struct owl_composite, common);
116 }
117
118 extern const struct clk_ops owl_comp_div_ops;
119 extern const struct clk_ops owl_comp_fact_ops;
120 extern const struct clk_ops owl_comp_fix_fact_ops;
121 extern const struct clk_ops owl_comp_pass_ops;
122 extern const struct clk_ops clk_fixed_factor_ops;
123
124 #endif /* _OWL_COMPOSITE_H_ */
125