1 /*
2  * SH-Mobile Clock Framework
3  *
4  * Copyright (C) 2010  Magnus Damm
5  *
6  * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c.
7  *
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  */
18 
19 #include <linux/export.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/sh_clk.h>
23 
24 #include "clock.h"
25 #include "common.h"
26 
shmobile_fixed_ratio_clk_recalc(struct clk * clk)27 unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk)
28 {
29 	struct clk_ratio *p = clk->priv;
30 
31 	return clk->parent->rate / p->div * p->mul;
32 };
33 
34 struct sh_clk_ops shmobile_fixed_ratio_clk_ops = {
35 	.recalc	= shmobile_fixed_ratio_clk_recalc,
36 };
37 
shmobile_clk_init(void)38 int __init shmobile_clk_init(void)
39 {
40 	/* Kick the child clocks.. */
41 	recalculate_root_clocks();
42 
43 	/* Enable the necessary init clocks */
44 	clk_enable_init_clocks();
45 
46 	return 0;
47 }
48