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e47bb515 | 1 | /* |
3572b33e | 2 | * SH-Mobile Clock Framework |
e47bb515 MD |
3 | * |
4 | * Copyright (C) 2010 Magnus Damm | |
5 | * | |
3572b33e MD |
6 | * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c. |
7 | * | |
e47bb515 MD |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | * | |
21 | */ | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/init.h> | |
25f5550f MD |
24 | |
25 | #ifdef CONFIG_COMMON_CLK | |
26 | #include <linux/clk.h> | |
27 | #include <linux/clkdev.h> | |
ad6ffa0b | 28 | #include "clock.h" |
25f5550f MD |
29 | |
30 | void __init shmobile_clk_workaround(const struct clk_name *clks, | |
31 | int nr_clks, bool enable) | |
32 | { | |
33 | const struct clk_name *clkn; | |
34 | struct clk *clk; | |
35 | unsigned int i; | |
36 | ||
37 | for (i = 0; i < nr_clks; ++i) { | |
38 | clkn = clks + i; | |
39 | clk = clk_get(NULL, clkn->clk); | |
40 | if (!IS_ERR(clk)) { | |
41 | clk_register_clkdev(clk, clkn->con_id, clkn->dev_id); | |
42 | if (enable) | |
43 | clk_prepare_enable(clk); | |
44 | clk_put(clk); | |
45 | } | |
46 | } | |
47 | } | |
48 | ||
49 | #else /* CONFIG_COMMON_CLK */ | |
e47bb515 | 50 | #include <linux/sh_clk.h> |
dc28094b | 51 | #include <linux/export.h> |
ad6ffa0b | 52 | #include "clock.h" |
fd44aa5e | 53 | #include "common.h" |
f5942c76 KM |
54 | |
55 | unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk) | |
56 | { | |
57 | struct clk_ratio *p = clk->priv; | |
58 | ||
59 | return clk->parent->rate / p->div * p->mul; | |
60 | }; | |
61 | ||
62 | struct sh_clk_ops shmobile_fixed_ratio_clk_ops = { | |
63 | .recalc = shmobile_fixed_ratio_clk_recalc, | |
64 | }; | |
e47bb515 | 65 | |
6b6a4c06 | 66 | int __init shmobile_clk_init(void) |
e47bb515 MD |
67 | { |
68 | /* Kick the child clocks.. */ | |
69 | recalculate_root_clocks(); | |
70 | ||
71 | /* Enable the necessary init clocks */ | |
72 | clk_enable_init_clocks(); | |
73 | ||
74 | return 0; | |
75 | } | |
76 | ||
77 | int __clk_get(struct clk *clk) | |
78 | { | |
79 | return 1; | |
80 | } | |
81 | EXPORT_SYMBOL(__clk_get); | |
82 | ||
83 | void __clk_put(struct clk *clk) | |
84 | { | |
85 | } | |
86 | EXPORT_SYMBOL(__clk_put); | |
25f5550f MD |
87 | |
88 | #endif /* CONFIG_COMMON_CLK */ |