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Maxime Riparddf6561e2016-06-29 21:05:32 +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_NKM_H_
15#define _CCU_NKM_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_nkm - Definition of an N-K-M clock
25 *
26 * Clocks based on the formula parent * N * K / M
27 */
28struct ccu_nkm {
29 u32 enable;
30 u32 lock;
31
32 struct _ccu_mult n;
33 struct _ccu_mult k;
34 struct _ccu_div m;
35
36 struct ccu_common common;
37};
38
39#define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
40 _nshift, _nwidth, \
41 _kshift, _kwidth, \
42 _mshift, _mwidth, \
43 _gate, _lock, _flags) \
44 struct ccu_nkm _struct = { \
45 .enable = _gate, \
46 .lock = _lock, \
47 .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \
48 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
49 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
50 .common = { \
51 .reg = _reg, \
52 .hw.init = CLK_HW_INIT(_name, \
53 _parent, \
54 &ccu_nkm_ops, \
55 _flags), \
56 }, \
57 }
58
59static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw)
60{
61 struct ccu_common *common = hw_to_ccu_common(hw);
62
63 return container_of(common, struct ccu_nkm, common);
64}
65
66extern const struct clk_ops ccu_nkm_ops;
67
68#endif /* _CCU_NKM_H_ */