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_NKMP_H_
15 #define _CCU_NKMP_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_nkmp - Definition of an N-K-M-P clock
25 *
26 * Clocks based on the formula parent * N * K >> P / M
27 */
28 struct ccu_nkmp {
29 u32 enable;
30 u32 lock;
31
32 struct ccu_mult_internal n;
33 struct ccu_mult_internal k;
34 struct ccu_div_internal m;
35 struct ccu_div_internal p;
36
37 unsigned int fixed_post_div;
38
39 struct ccu_common common;
40 };
41
42 #define SUNXI_CCU_NKMP_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
43 _nshift, _nwidth, \
44 _kshift, _kwidth, \
45 _mshift, _mwidth, \
46 _pshift, _pwidth, \
47 _gate, _lock, _flags) \
48 struct ccu_nkmp _struct = { \
49 .enable = _gate, \
50 .lock = _lock, \
51 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
52 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
53 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
54 .p = _SUNXI_CCU_DIV(_pshift, _pwidth), \
55 .common = { \
56 .reg = _reg, \
57 .hw.init = CLK_HW_INIT(_name, \
58 _parent, \
59 &ccu_nkmp_ops, \
60 _flags), \
61 }, \
62 }
63
hw_to_ccu_nkmp(struct clk_hw * hw)64 static inline struct ccu_nkmp *hw_to_ccu_nkmp(struct clk_hw *hw)
65 {
66 struct ccu_common *common = hw_to_ccu_common(hw);
67
68 return container_of(common, struct ccu_nkmp, common);
69 }
70
71 extern const struct clk_ops ccu_nkmp_ops;
72
73 #endif /* _CCU_NKMP_H_ */
74