thermal: fix Mediatek thermal controller build
[linux/fpc-iii.git] / arch / mips / ralink / clk.c
blob25c4a61779f1f3a015b9eb7d76bdfc63e3a7dab4
1 /*
2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License version 2 as published
4 * by the Free Software Foundation.
6 * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
7 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
8 */
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/clkdev.h>
13 #include <linux/clk.h>
15 #include <asm/time.h>
17 #include "common.h"
19 struct clk {
20 struct clk_lookup cl;
21 unsigned long rate;
24 void ralink_clk_add(const char *dev, unsigned long rate)
26 struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
28 if (!clk)
29 panic("failed to add clock");
31 clk->cl.dev_id = dev;
32 clk->cl.clk = clk;
34 clk->rate = rate;
36 clkdev_add(&clk->cl);
40 * Linux clock API
42 int clk_enable(struct clk *clk)
44 return 0;
46 EXPORT_SYMBOL_GPL(clk_enable);
48 void clk_disable(struct clk *clk)
51 EXPORT_SYMBOL_GPL(clk_disable);
53 unsigned long clk_get_rate(struct clk *clk)
55 return clk->rate;
57 EXPORT_SYMBOL_GPL(clk_get_rate);
59 int clk_set_rate(struct clk *clk, unsigned long rate)
61 return -1;
63 EXPORT_SYMBOL_GPL(clk_set_rate);
65 void __init plat_time_init(void)
67 struct clk *clk;
69 ralink_of_remap();
71 ralink_clk_init();
72 clk = clk_get_sys("cpu", NULL);
73 if (IS_ERR(clk))
74 panic("unable to get CPU clock, err=%ld", PTR_ERR(clk));
75 pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
76 mips_hpt_frequency = clk_get_rate(clk) / 2;
77 clk_put(clk);
78 clocksource_probe();