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Maxime Ripard4f728b52016-06-29 21:05:33 +02001/*
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 */
28struct ccu_nkmp {
29 u32 enable;
30 u32 lock;
31
32 struct _ccu_mult n;
33 struct _ccu_mult k;
34 struct _ccu_div m;
35 struct _ccu_div p;
36
37 struct ccu_common common;
38};
39
40#define SUNXI_CCU_NKMP_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
41 _nshift, _nwidth, \
42 _kshift, _kwidth, \
43 _mshift, _mwidth, \
44 _pshift, _pwidth, \
45 _gate, _lock, _flags) \
46 struct ccu_nkmp _struct = { \
47 .enable = _gate, \
48 .lock = _lock, \
49 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
50 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
51 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
52 .p = _SUNXI_CCU_DIV(_pshift, _pwidth), \
53 .common = { \
54 .reg = _reg, \
55 .hw.init = CLK_HW_INIT(_name, \
56 _parent, \
57 &ccu_nkmp_ops, \
58 _flags), \
59 }, \
60 }
61
62static inline struct ccu_nkmp *hw_to_ccu_nkmp(struct clk_hw *hw)
63{
64 struct ccu_common *common = hw_to_ccu_common(hw);
65
66 return container_of(common, struct ccu_nkmp, common);
67}
68
69extern const struct clk_ops ccu_nkmp_ops;
70
71#endif /* _CCU_NKMP_H_ */