1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | // |
3 | // Spreadtrum gate clock driver |
4 | // |
5 | // Copyright (C) 2017 Spreadtrum, Inc. |
6 | // Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com> |
7 | |
8 | #ifndef _SPRD_GATE_H_ |
9 | #define _SPRD_GATE_H_ |
10 | |
11 | #include "common.h" |
12 | |
13 | struct sprd_gate { |
14 | u32 enable_mask; |
15 | u16 flags; |
16 | u16 sc_offset; |
17 | u16 udelay; |
18 | |
19 | struct sprd_clk_common common; |
20 | }; |
21 | |
22 | /* |
23 | * sprd_gate->flags is used for: |
24 | * CLK_GATE_SET_TO_DISABLE BIT(0) |
25 | * CLK_GATE_HIWORD_MASK BIT(1) |
26 | * CLK_GATE_BIG_ENDIAN BIT(2) |
27 | * so we define new flags from BIT(3) |
28 | */ |
29 | #define SPRD_GATE_NON_AON BIT(3) /* not alway powered on, check before read */ |
30 | |
31 | #define SPRD_SC_GATE_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \ |
32 | _sc_offset, _enable_mask, _flags, \ |
33 | _gate_flags, _udelay, _ops, _fn) \ |
34 | struct sprd_gate _struct = { \ |
35 | .enable_mask = _enable_mask, \ |
36 | .sc_offset = _sc_offset, \ |
37 | .flags = _gate_flags, \ |
38 | .udelay = _udelay, \ |
39 | .common = { \ |
40 | .regmap = NULL, \ |
41 | .reg = _reg, \ |
42 | .hw.init = _fn(_name, _parent, \ |
43 | _ops, _flags), \ |
44 | } \ |
45 | } |
46 | |
47 | #define SPRD_SC_GATE_CLK_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
48 | _sc_offset, _enable_mask, _flags, \ |
49 | _gate_flags, _udelay, _ops) \ |
50 | SPRD_SC_GATE_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \ |
51 | _sc_offset, _enable_mask, _flags, \ |
52 | _gate_flags, _udelay, _ops, CLK_HW_INIT) |
53 | |
54 | #define SPRD_SC_GATE_CLK_OPS(_struct, _name, _parent, _reg, _sc_offset, \ |
55 | _enable_mask, _flags, _gate_flags, _ops) \ |
56 | SPRD_SC_GATE_CLK_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
57 | _sc_offset, _enable_mask, _flags, \ |
58 | _gate_flags, 0, _ops) |
59 | |
60 | #define SPRD_SC_GATE_CLK(_struct, _name, _parent, _reg, _sc_offset, \ |
61 | _enable_mask, _flags, _gate_flags) \ |
62 | SPRD_SC_GATE_CLK_OPS(_struct, _name, _parent, _reg, _sc_offset, \ |
63 | _enable_mask, _flags, _gate_flags, \ |
64 | &sprd_sc_gate_ops) |
65 | |
66 | #define SPRD_GATE_CLK(_struct, _name, _parent, _reg, \ |
67 | _enable_mask, _flags, _gate_flags) \ |
68 | SPRD_SC_GATE_CLK_OPS(_struct, _name, _parent, _reg, 0, \ |
69 | _enable_mask, _flags, _gate_flags, \ |
70 | &sprd_gate_ops) |
71 | |
72 | #define SPRD_PLL_SC_GATE_CLK(_struct, _name, _parent, _reg, _sc_offset, \ |
73 | _enable_mask, _flags, _gate_flags, \ |
74 | _udelay) \ |
75 | SPRD_SC_GATE_CLK_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
76 | _sc_offset, _enable_mask, _flags, \ |
77 | _gate_flags, _udelay, \ |
78 | &sprd_pll_sc_gate_ops) |
79 | |
80 | |
81 | #define SPRD_SC_GATE_CLK_HW_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
82 | _sc_offset, _enable_mask, \ |
83 | _flags, _gate_flags, \ |
84 | _udelay, _ops) \ |
85 | SPRD_SC_GATE_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \ |
86 | _sc_offset, _enable_mask, _flags, \ |
87 | _gate_flags, _udelay, _ops, \ |
88 | CLK_HW_INIT_HW) |
89 | |
90 | #define SPRD_SC_GATE_CLK_HW_OPS(_struct, _name, _parent, _reg, \ |
91 | _sc_offset, _enable_mask, _flags, \ |
92 | _gate_flags, _ops) \ |
93 | SPRD_SC_GATE_CLK_HW_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
94 | _sc_offset, _enable_mask, \ |
95 | _flags, _gate_flags, 0, _ops) |
96 | |
97 | #define SPRD_SC_GATE_CLK_HW(_struct, _name, _parent, _reg, \ |
98 | _sc_offset, _enable_mask, _flags, \ |
99 | _gate_flags) \ |
100 | SPRD_SC_GATE_CLK_HW_OPS(_struct, _name, _parent, _reg, \ |
101 | _sc_offset, _enable_mask, _flags, \ |
102 | _gate_flags, &sprd_sc_gate_ops) |
103 | |
104 | #define SPRD_GATE_CLK_HW(_struct, _name, _parent, _reg, \ |
105 | _enable_mask, _flags, _gate_flags) \ |
106 | SPRD_SC_GATE_CLK_HW_OPS(_struct, _name, _parent, _reg, 0, \ |
107 | _enable_mask, _flags, _gate_flags, \ |
108 | &sprd_gate_ops) |
109 | |
110 | #define SPRD_PLL_SC_GATE_CLK_HW(_struct, _name, _parent, _reg, \ |
111 | _sc_offset, _enable_mask, _flags, \ |
112 | _gate_flags, _udelay) \ |
113 | SPRD_SC_GATE_CLK_HW_OPS_UDELAY(_struct, _name, _parent, _reg, \ |
114 | _sc_offset, _enable_mask, \ |
115 | _flags, _gate_flags, _udelay, \ |
116 | &sprd_pll_sc_gate_ops) |
117 | |
118 | #define SPRD_SC_GATE_CLK_FW_NAME_OPS_UDELAY(_struct, _name, _parent, \ |
119 | _reg, _sc_offset, \ |
120 | _enable_mask, _flags, \ |
121 | _gate_flags, _udelay, _ops) \ |
122 | SPRD_SC_GATE_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \ |
123 | _sc_offset, _enable_mask, _flags, \ |
124 | _gate_flags, _udelay, _ops, \ |
125 | CLK_HW_INIT_FW_NAME) |
126 | |
127 | #define SPRD_SC_GATE_CLK_FW_NAME_OPS(_struct, _name, _parent, _reg, \ |
128 | _sc_offset, _enable_mask, _flags, \ |
129 | _gate_flags, _ops) \ |
130 | SPRD_SC_GATE_CLK_FW_NAME_OPS_UDELAY(_struct, _name, _parent, \ |
131 | _reg, _sc_offset, \ |
132 | _enable_mask, _flags, \ |
133 | _gate_flags, 0, _ops) |
134 | |
135 | #define SPRD_SC_GATE_CLK_FW_NAME(_struct, _name, _parent, _reg, \ |
136 | _sc_offset, _enable_mask, _flags, \ |
137 | _gate_flags) \ |
138 | SPRD_SC_GATE_CLK_FW_NAME_OPS(_struct, _name, _parent, _reg, \ |
139 | _sc_offset, _enable_mask, _flags, \ |
140 | _gate_flags, &sprd_sc_gate_ops) |
141 | |
142 | #define SPRD_GATE_CLK_FW_NAME(_struct, _name, _parent, _reg, \ |
143 | _enable_mask, _flags, _gate_flags) \ |
144 | SPRD_SC_GATE_CLK_FW_NAME_OPS(_struct, _name, _parent, _reg, 0, \ |
145 | _enable_mask, _flags, _gate_flags, \ |
146 | &sprd_gate_ops) |
147 | |
148 | #define SPRD_PLL_SC_GATE_CLK_FW_NAME(_struct, _name, _parent, _reg, \ |
149 | _sc_offset, _enable_mask, _flags, \ |
150 | _gate_flags, _udelay) \ |
151 | SPRD_SC_GATE_CLK_FW_NAME_OPS_UDELAY(_struct, _name, _parent, \ |
152 | _reg, _sc_offset, \ |
153 | _enable_mask, _flags, \ |
154 | _gate_flags, _udelay, \ |
155 | &sprd_pll_sc_gate_ops) |
156 | |
157 | static inline struct sprd_gate *hw_to_sprd_gate(const struct clk_hw *hw) |
158 | { |
159 | struct sprd_clk_common *common = hw_to_sprd_clk_common(hw); |
160 | |
161 | return container_of(common, struct sprd_gate, common); |
162 | } |
163 | |
164 | extern const struct clk_ops sprd_gate_ops; |
165 | extern const struct clk_ops sprd_sc_gate_ops; |
166 | extern const struct clk_ops sprd_pll_sc_gate_ops; |
167 | |
168 | #endif /* _SPRD_GATE_H_ */ |
169 | |