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1 | /* |
2 | * Copyright (c) 2016 Maxime Ripard. All rights reserved. | |
3 | * | |
4 | * This software is licensed under the terms of the GNU General Public | |
5 | * License version 2, as published by the Free Software Foundation, and | |
6 | * may be copied, distributed, and modified under those terms. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | ||
14 | #ifndef _CCU_DIV_H_ | |
15 | #define _CCU_DIV_H_ | |
16 | ||
17 | #include <linux/clk-provider.h> | |
18 | ||
19 | #include "ccu_common.h" | |
20 | #include "ccu_mux.h" | |
21 | ||
22 | struct _ccu_div { | |
23 | u8 shift; | |
24 | u8 width; | |
25 | ||
26 | u32 flags; | |
27 | ||
28 | struct clk_div_table *table; | |
29 | }; | |
30 | ||
31 | #define _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, _flags) \ | |
32 | { \ | |
33 | .shift = _shift, \ | |
34 | .width = _width, \ | |
35 | .flags = _flags, \ | |
36 | .table = _table, \ | |
37 | } | |
38 | ||
39 | #define _SUNXI_CCU_DIV_FLAGS(_shift, _width, _flags) \ | |
40 | _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, _flags) | |
41 | ||
42 | #define _SUNXI_CCU_DIV_TABLE(_shift, _width, _table) \ | |
43 | _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, 0) | |
44 | ||
45 | #define _SUNXI_CCU_DIV(_shift, _width) \ | |
46 | _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, 0) | |
47 | ||
48 | struct ccu_div { | |
49 | u32 enable; | |
50 | ||
51 | struct _ccu_div div; | |
52 | struct ccu_mux_internal mux; | |
53 | struct ccu_common common; | |
54 | }; | |
55 | ||
56 | #define SUNXI_CCU_DIV_TABLE_WITH_GATE(_struct, _name, _parent, _reg, \ | |
57 | _shift, _width, \ | |
58 | _table, _gate, _flags) \ | |
59 | struct ccu_div _struct = { \ | |
60 | .div = _SUNXI_CCU_DIV_TABLE(_shift, _width, \ | |
61 | _table), \ | |
62 | .enable = _gate, \ | |
63 | .common = { \ | |
64 | .reg = _reg, \ | |
65 | .hw.init = CLK_HW_INIT(_name, \ | |
66 | _parent, \ | |
67 | &ccu_div_ops, \ | |
68 | _flags), \ | |
69 | } \ | |
70 | } | |
71 | ||
72 | ||
73 | #define SUNXI_CCU_DIV_TABLE(_struct, _name, _parent, _reg, \ | |
74 | _shift, _width, \ | |
75 | _table, _flags) \ | |
76 | SUNXI_CCU_DIV_TABLE_WITH_GATE(_struct, _name, _parent, _reg, \ | |
77 | _shift, _width, _table, 0, \ | |
78 | _flags) | |
79 | ||
80 | #define SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg, \ | |
81 | _mshift, _mwidth, _muxshift, _muxwidth, \ | |
82 | _gate, _flags) \ | |
83 | struct ccu_div _struct = { \ | |
84 | .enable = _gate, \ | |
85 | .div = _SUNXI_CCU_DIV(_mshift, _mwidth), \ | |
86 | .mux = SUNXI_CLK_MUX(_muxshift, _muxwidth), \ | |
87 | .common = { \ | |
88 | .reg = _reg, \ | |
89 | .hw.init = CLK_HW_INIT_PARENTS(_name, \ | |
90 | _parents, \ | |
91 | &ccu_div_ops, \ | |
92 | _flags), \ | |
93 | }, \ | |
94 | } | |
95 | ||
96 | #define SUNXI_CCU_M_WITH_MUX(_struct, _name, _parents, _reg, \ | |
97 | _mshift, _mwidth, _muxshift, _muxwidth, \ | |
98 | _flags) \ | |
99 | SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg, \ | |
100 | _mshift, _mwidth, _muxshift, _muxwidth, \ | |
101 | 0, _flags) | |
102 | ||
103 | ||
104 | #define SUNXI_CCU_M_WITH_GATE(_struct, _name, _parent, _reg, \ | |
105 | _mshift, _mwidth, _gate, \ | |
106 | _flags) \ | |
107 | struct ccu_div _struct = { \ | |
108 | .enable = _gate, \ | |
109 | .div = _SUNXI_CCU_DIV(_mshift, _mwidth), \ | |
110 | .common = { \ | |
111 | .reg = _reg, \ | |
112 | .hw.init = CLK_HW_INIT(_name, \ | |
113 | _parent, \ | |
114 | &ccu_div_ops, \ | |
115 | _flags), \ | |
116 | }, \ | |
117 | } | |
118 | ||
119 | #define SUNXI_CCU_M(_struct, _name, _parent, _reg, _mshift, _mwidth, \ | |
120 | _flags) \ | |
121 | SUNXI_CCU_M_WITH_GATE(_struct, _name, _parent, _reg, \ | |
122 | _mshift, _mwidth, 0, _flags) | |
123 | ||
124 | static inline struct ccu_div *hw_to_ccu_div(struct clk_hw *hw) | |
125 | { | |
126 | struct ccu_common *common = hw_to_ccu_common(hw); | |
127 | ||
128 | return container_of(common, struct ccu_div, common); | |
129 | } | |
130 | ||
131 | extern const struct clk_ops ccu_div_ops; | |
132 | ||
133 | #endif /* _CCU_DIV_H_ */ |