Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
[sfrench/cifs-2.6.git] / drivers / clk / hisilicon / clk.h
1 /*
2  * Hisilicon Hi3620 clock gate driver
3  *
4  * Copyright (c) 2012-2013 Hisilicon Limited.
5  * Copyright (c) 2012-2013 Linaro Limited.
6  *
7  * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
8  *         Xin Li <li.xin@linaro.org>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License along
21  * with this program; if not, write to the Free Software Foundation, Inc.,
22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23  *
24  */
25
26 #ifndef __HISI_CLK_H
27 #define __HISI_CLK_H
28
29 #include <linux/clk-provider.h>
30 #include <linux/io.h>
31 #include <linux/spinlock.h>
32
33 struct platform_device;
34
35 struct hisi_clock_data {
36         struct clk_onecell_data clk_data;
37         void __iomem            *base;
38 };
39
40 struct hisi_fixed_rate_clock {
41         unsigned int            id;
42         char                    *name;
43         const char              *parent_name;
44         unsigned long           flags;
45         unsigned long           fixed_rate;
46 };
47
48 struct hisi_fixed_factor_clock {
49         unsigned int            id;
50         char                    *name;
51         const char              *parent_name;
52         unsigned long           mult;
53         unsigned long           div;
54         unsigned long           flags;
55 };
56
57 struct hisi_mux_clock {
58         unsigned int            id;
59         const char              *name;
60         const char              *const *parent_names;
61         u8                      num_parents;
62         unsigned long           flags;
63         unsigned long           offset;
64         u8                      shift;
65         u8                      width;
66         u8                      mux_flags;
67         u32                     *table;
68         const char              *alias;
69 };
70
71 struct hisi_phase_clock {
72         unsigned int            id;
73         const char              *name;
74         const char              *parent_names;
75         unsigned long           flags;
76         unsigned long           offset;
77         u8                      shift;
78         u8                      width;
79         u32                     *phase_degrees;
80         u32                     *phase_regvals;
81         u8                      phase_num;
82 };
83
84 struct hisi_divider_clock {
85         unsigned int            id;
86         const char              *name;
87         const char              *parent_name;
88         unsigned long           flags;
89         unsigned long           offset;
90         u8                      shift;
91         u8                      width;
92         u8                      div_flags;
93         struct clk_div_table    *table;
94         const char              *alias;
95 };
96
97 struct hi6220_divider_clock {
98         unsigned int            id;
99         const char              *name;
100         const char              *parent_name;
101         unsigned long           flags;
102         unsigned long           offset;
103         u8                      shift;
104         u8                      width;
105         u32                     mask_bit;
106         const char              *alias;
107 };
108
109 struct hisi_gate_clock {
110         unsigned int            id;
111         const char              *name;
112         const char              *parent_name;
113         unsigned long           flags;
114         unsigned long           offset;
115         u8                      bit_idx;
116         u8                      gate_flags;
117         const char              *alias;
118 };
119
120 struct clk *hisi_register_clkgate_sep(struct device *, const char *,
121                                 const char *, unsigned long,
122                                 void __iomem *, u8,
123                                 u8, spinlock_t *);
124 struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
125         const char *parent_name, unsigned long flags, void __iomem *reg,
126         u8 shift, u8 width, u32 mask_bit, spinlock_t *lock);
127
128 struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
129 struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
130 int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
131                                 int, struct hisi_clock_data *);
132 int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
133                                 int, struct hisi_clock_data *);
134 int hisi_clk_register_mux(const struct hisi_mux_clock *, int,
135                                 struct hisi_clock_data *);
136 struct clk *clk_register_hisi_phase(struct device *dev,
137                                 const struct hisi_phase_clock *clks,
138                                 void __iomem *base, spinlock_t *lock);
139 int hisi_clk_register_phase(struct device *dev,
140                                 const struct hisi_phase_clock *clks,
141                                 int nums, struct hisi_clock_data *data);
142 int hisi_clk_register_divider(const struct hisi_divider_clock *,
143                                 int, struct hisi_clock_data *);
144 int hisi_clk_register_gate(const struct hisi_gate_clock *,
145                                 int, struct hisi_clock_data *);
146 void hisi_clk_register_gate_sep(const struct hisi_gate_clock *,
147                                 int, struct hisi_clock_data *);
148 void hi6220_clk_register_divider(const struct hi6220_divider_clock *,
149                                 int, struct hisi_clock_data *);
150
151 #define hisi_clk_unregister(type) \
152 static inline \
153 void hisi_clk_unregister_##type(const struct hisi_##type##_clock *clks, \
154                                 int nums, struct hisi_clock_data *data) \
155 { \
156         struct clk **clocks = data->clk_data.clks; \
157         int i; \
158         for (i = 0; i < nums; i++) { \
159                 int id = clks[i].id; \
160                 if (clocks[id])  \
161                         clk_unregister_##type(clocks[id]); \
162         } \
163 }
164
165 hisi_clk_unregister(fixed_rate)
166 hisi_clk_unregister(fixed_factor)
167 hisi_clk_unregister(mux)
168 hisi_clk_unregister(divider)
169 hisi_clk_unregister(gate)
170
171 #endif  /* __HISI_CLK_H */