This source file includes following definitions.
- hw_to_ccu_mux
1
2 #ifndef _CCU_MUX_H_
3 #define _CCU_MUX_H_
4
5 #include <linux/clk-provider.h>
6
7 #include "ccu_common.h"
8
9 struct ccu_mux_fixed_prediv {
10 u8 index;
11 u16 div;
12 };
13
14 struct ccu_mux_var_prediv {
15 u8 index;
16 u8 shift;
17 u8 width;
18 };
19
20 struct ccu_mux_internal {
21 u8 shift;
22 u8 width;
23 const u8 *table;
24
25 const struct ccu_mux_fixed_prediv *fixed_predivs;
26 u8 n_predivs;
27
28 const struct ccu_mux_var_prediv *var_predivs;
29 u8 n_var_predivs;
30 };
31
32 #define _SUNXI_CCU_MUX_TABLE(_shift, _width, _table) \
33 { \
34 .shift = _shift, \
35 .width = _width, \
36 .table = _table, \
37 }
38
39 #define _SUNXI_CCU_MUX(_shift, _width) \
40 _SUNXI_CCU_MUX_TABLE(_shift, _width, NULL)
41
42 struct ccu_mux {
43 u16 reg;
44 u32 enable;
45
46 struct ccu_mux_internal mux;
47 struct ccu_common common;
48 };
49
50 #define SUNXI_CCU_MUX_TABLE_WITH_GATE(_struct, _name, _parents, _table, \
51 _reg, _shift, _width, _gate, \
52 _flags) \
53 struct ccu_mux _struct = { \
54 .enable = _gate, \
55 .mux = _SUNXI_CCU_MUX_TABLE(_shift, _width, _table), \
56 .common = { \
57 .reg = _reg, \
58 .hw.init = CLK_HW_INIT_PARENTS(_name, \
59 _parents, \
60 &ccu_mux_ops, \
61 _flags), \
62 } \
63 }
64
65 #define SUNXI_CCU_MUX_WITH_GATE(_struct, _name, _parents, _reg, \
66 _shift, _width, _gate, _flags) \
67 SUNXI_CCU_MUX_TABLE_WITH_GATE(_struct, _name, _parents, NULL, \
68 _reg, _shift, _width, _gate, \
69 _flags)
70
71 #define SUNXI_CCU_MUX(_struct, _name, _parents, _reg, _shift, _width, \
72 _flags) \
73 SUNXI_CCU_MUX_TABLE_WITH_GATE(_struct, _name, _parents, NULL, \
74 _reg, _shift, _width, 0, _flags)
75
76 static inline struct ccu_mux *hw_to_ccu_mux(struct clk_hw *hw)
77 {
78 struct ccu_common *common = hw_to_ccu_common(hw);
79
80 return container_of(common, struct ccu_mux, common);
81 }
82
83 extern const struct clk_ops ccu_mux_ops;
84
85 unsigned long ccu_mux_helper_apply_prediv(struct ccu_common *common,
86 struct ccu_mux_internal *cm,
87 int parent_index,
88 unsigned long parent_rate);
89 int ccu_mux_helper_determine_rate(struct ccu_common *common,
90 struct ccu_mux_internal *cm,
91 struct clk_rate_request *req,
92 unsigned long (*round)(struct ccu_mux_internal *,
93 struct clk_hw *,
94 unsigned long *,
95 unsigned long,
96 void *),
97 void *data);
98 u8 ccu_mux_helper_get_parent(struct ccu_common *common,
99 struct ccu_mux_internal *cm);
100 int ccu_mux_helper_set_parent(struct ccu_common *common,
101 struct ccu_mux_internal *cm,
102 u8 index);
103
104 struct ccu_mux_nb {
105 struct notifier_block clk_nb;
106 struct ccu_common *common;
107 struct ccu_mux_internal *cm;
108
109 u32 delay_us;
110 u8 bypass_index;
111 u8 original_index;
112 };
113
114 #define to_ccu_mux_nb(_nb) container_of(_nb, struct ccu_mux_nb, clk_nb)
115
116 int ccu_mux_notifier_register(struct clk *clk, struct ccu_mux_nb *mux_nb);
117
118 #endif