GNU Linux-libre 4.19.314-gnu1
[releases.git] / drivers / clk / sunxi-ng / ccu_nk.h
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_NK_H_
15 #define _CCU_NK_H_
16
17 #include <linux/clk-provider.h>
18
19 #include "ccu_common.h"
20 #include "ccu_div.h"
21 #include "ccu_mult.h"
22
23 /*
24  * struct ccu_nk - Definition of an N-K clock
25  *
26  * Clocks based on the formula parent * N * K
27  */
28 struct ccu_nk {
29         u16                     reg;
30         u32                     enable;
31         u32                     lock;
32
33         struct ccu_mult_internal        n;
34         struct ccu_mult_internal        k;
35
36         unsigned int            fixed_post_div;
37
38         struct ccu_common       common;
39 };
40
41 #define SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(_struct, _name, _parent, _reg, \
42                                             _nshift, _nwidth,           \
43                                             _kshift, _kwidth,           \
44                                             _gate, _lock, _postdiv,     \
45                                             _flags)                     \
46         struct ccu_nk _struct = {                                       \
47                 .enable         = _gate,                                \
48                 .lock           = _lock,                                \
49                 .k              = _SUNXI_CCU_MULT(_kshift, _kwidth),    \
50                 .n              = _SUNXI_CCU_MULT(_nshift, _nwidth),    \
51                 .fixed_post_div = _postdiv,                             \
52                 .common         = {                                     \
53                         .reg            = _reg,                         \
54                         .features       = CCU_FEATURE_FIXED_POSTDIV,    \
55                         .hw.init        = CLK_HW_INIT(_name,            \
56                                                       _parent,          \
57                                                       &ccu_nk_ops,      \
58                                                       _flags),          \
59                 },                                                      \
60         }
61
62 static inline struct ccu_nk *hw_to_ccu_nk(struct clk_hw *hw)
63 {
64         struct ccu_common *common = hw_to_ccu_common(hw);
65
66         return container_of(common, struct ccu_nk, common);
67 }
68
69 extern const struct clk_ops ccu_nk_ops;
70
71 #endif /* _CCU_NK_H_ */