1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
4  */
5 
6 #ifndef _CCU_NKM_H_
7 #define _CCU_NKM_H_
8 
9 #include <linux/clk-provider.h>
10 
11 #include "ccu_common.h"
12 #include "ccu_div.h"
13 #include "ccu_mult.h"
14 
15 /*
16  * struct ccu_nkm - Definition of an N-K-M clock
17  *
18  * Clocks based on the formula parent * N * K / M
19  */
20 struct ccu_nkm {
21 	u32			enable;
22 	u32			lock;
23 
24 	struct ccu_mult_internal	n;
25 	struct ccu_mult_internal	k;
26 	struct ccu_div_internal		m;
27 	struct ccu_mux_internal	mux;
28 
29 	unsigned int		fixed_post_div;
30 
31 	struct ccu_common	common;
32 };
33 
34 #define SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(_struct, _name, _parents, _reg, \
35 					 _nshift, _nwidth,		\
36 					 _kshift, _kwidth,		\
37 					 _mshift, _mwidth,		\
38 					 _muxshift, _muxwidth,		\
39 					 _gate, _lock, _flags)		\
40 	struct ccu_nkm _struct = {					\
41 		.enable		= _gate,				\
42 		.lock		= _lock,				\
43 		.k		= _SUNXI_CCU_MULT(_kshift, _kwidth),	\
44 		.n		= _SUNXI_CCU_MULT(_nshift, _nwidth),	\
45 		.m		= _SUNXI_CCU_DIV(_mshift, _mwidth),	\
46 		.mux		= _SUNXI_CCU_MUX(_muxshift, _muxwidth),	\
47 		.common		= {					\
48 			.reg		= _reg,				\
49 			.hw.init	= CLK_HW_INIT_PARENTS(_name,	\
50 						      _parents,		\
51 						      &ccu_nkm_ops,	\
52 						      _flags),		\
53 		},							\
54 	}
55 
56 #define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg,	\
57 				     _nshift, _nwidth,			\
58 				     _kshift, _kwidth,			\
59 				     _mshift, _mwidth,			\
60 				     _gate, _lock, _flags)		\
61 	struct ccu_nkm _struct = {					\
62 		.enable		= _gate,				\
63 		.lock		= _lock,				\
64 		.k		= _SUNXI_CCU_MULT(_kshift, _kwidth),	\
65 		.n		= _SUNXI_CCU_MULT(_nshift, _nwidth),	\
66 		.m		= _SUNXI_CCU_DIV(_mshift, _mwidth),	\
67 		.common		= {					\
68 			.reg		= _reg,				\
69 			.hw.init	= CLK_HW_INIT(_name,		\
70 						      _parent,		\
71 						      &ccu_nkm_ops,	\
72 						      _flags),		\
73 		},							\
74 	}
75 
hw_to_ccu_nkm(struct clk_hw * hw)76 static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw)
77 {
78 	struct ccu_common *common = hw_to_ccu_common(hw);
79 
80 	return container_of(common, struct ccu_nkm, common);
81 }
82 
83 extern const struct clk_ops ccu_nkm_ops;
84 
85 #endif /* _CCU_NKM_H_ */
86