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b4cbe606 NI |
1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* | |
3 | * Toshiba Visconti clock controller | |
4 | * | |
5 | * Copyright (c) 2021 TOSHIBA CORPORATION | |
6 | * Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation | |
7 | * | |
8 | * Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> | |
9 | */ | |
10 | ||
11 | #ifndef _VISCONTI_CLKC_H_ | |
12 | #define _VISCONTI_CLKC_H_ | |
13 | ||
14 | #include <linux/mfd/syscon.h> | |
15 | #include <linux/clk-provider.h> | |
16 | #include <linux/of.h> | |
17 | #include <linux/of_address.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/regmap.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/string.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/spinlock.h> | |
24 | ||
25 | #include "reset.h" | |
26 | ||
27 | struct visconti_clk_provider { | |
28 | struct device *dev; | |
29 | struct regmap *regmap; | |
30 | struct clk_hw_onecell_data clk_data; | |
31 | }; | |
32 | ||
33 | struct visconti_clk_gate_table { | |
34 | unsigned int id; | |
35 | const char *name; | |
36 | const struct clk_parent_data *parent_data; | |
37 | u8 num_parents; | |
38 | u8 flags; | |
39 | u32 ckon_offset; | |
40 | u32 ckoff_offset; | |
41 | u8 ck_idx; | |
42 | unsigned int div; | |
43 | u8 rs_id; | |
44 | }; | |
45 | ||
46 | struct visconti_fixed_clk { | |
47 | unsigned int id; | |
48 | const char *name; | |
49 | const char *parent; | |
50 | unsigned long flag; | |
51 | unsigned int mult; | |
52 | unsigned int div; | |
53 | }; | |
54 | ||
55 | struct visconti_clk_gate { | |
56 | struct clk_hw hw; | |
57 | struct regmap *regmap; | |
58 | u32 ckon_offset; | |
59 | u32 ckoff_offset; | |
60 | u8 ck_idx; | |
61 | u8 flags; | |
62 | u32 rson_offset; | |
63 | u32 rsoff_offset; | |
64 | u8 rs_idx; | |
65 | spinlock_t *lock; | |
66 | }; | |
67 | ||
68 | struct visconti_clk_provider *visconti_init_clk(struct device *dev, | |
69 | struct regmap *regmap, | |
70 | unsigned long nr_clks); | |
71 | int visconti_clk_register_gates(struct visconti_clk_provider *data, | |
72 | const struct visconti_clk_gate_table *clks, | |
73 | int num_gate, | |
74 | const struct visconti_reset_data *reset, | |
75 | spinlock_t *lock); | |
76 | #endif /* _VISCONTI_CLKC_H_ */ |