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-rw-r--r--drivers/clk/sunxi-ng/ccu_nm.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_nm.h b/drivers/clk/sunxi-ng/ccu_nm.h
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+++ b/drivers/clk/sunxi-ng/ccu_nm.h
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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_NM_H_
15#define _CCU_NM_H_
16
17#include <linux/clk-provider.h>
18
19#include "ccu_common.h"
20#include "ccu_div.h"
21#include "ccu_frac.h"
22#include "ccu_mult.h"
23
24/*
25 * struct ccu_nm - Definition of an N-M clock
26 *
27 * Clocks based on the formula parent * N / M
28 */
29struct ccu_nm {
30 u32 enable;
31 u32 lock;
32
33 struct _ccu_mult n;
34 struct _ccu_div m;
35 struct _ccu_frac frac;
36
37 struct ccu_common common;
38};
39
40#define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(_struct, _name, _parent, _reg, \
41 _nshift, _nwidth, \
42 _mshift, _mwidth, \
43 _frac_en, _frac_sel, \
44 _frac_rate_0, _frac_rate_1, \
45 _gate, _lock, _flags) \
46 struct ccu_nm _struct = { \
47 .enable = _gate, \
48 .lock = _lock, \
49 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
50 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
51 .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \
52 _frac_rate_0, \
53 _frac_rate_1), \
54 .common = { \
55 .reg = _reg, \
56 .features = CCU_FEATURE_FRACTIONAL, \
57 .hw.init = CLK_HW_INIT(_name, \
58 _parent, \
59 &ccu_nm_ops, \
60 _flags), \
61 }, \
62 }
63
64#define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
65 _nshift, _nwidth, \
66 _mshift, _mwidth, \
67 _gate, _lock, _flags) \
68 struct ccu_nm _struct = { \
69 .enable = _gate, \
70 .lock = _lock, \
71 .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
72 .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
73 .common = { \
74 .reg = _reg, \
75 .hw.init = CLK_HW_INIT(_name, \
76 _parent, \
77 &ccu_nm_ops, \
78 _flags), \
79 }, \
80 }
81
82static inline struct ccu_nm *hw_to_ccu_nm(struct clk_hw *hw)
83{
84 struct ccu_common *common = hw_to_ccu_common(hw);
85
86 return container_of(common, struct ccu_nm, common);
87}
88
89extern const struct clk_ops ccu_nm_ops;
90
91#endif /* _CCU_NM_H_ */