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
hw_to_ccu_nk(struct clk_hw * hw)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_ */
72