source: trunk/target/linux/adm5120/files/arch/mips/adm5120/common/clock.c @ 31511

Last change on this file since 31511 was 31511, checked in by juhosg, 5 years ago

adm5120: merge 3.3 patches

  • Property svn:eol-style set to native
File size: 1.3 KB
Line 
1/*
2 *  ADM5120 minimal CLK API implementation
3 *
4 *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
5 *
6 *  This file was based on the CLK API implementation in:
7 *      arch/mips/tx4938/toshiba_rbtx4938/setup.c
8 *      Copyright (C) 2000-2001 Toshiba Corporation
9 *      2003-2005 (c) MontaVista Software, Inc.
10 *
11 *  This program is free software; you can redistribute it and/or modify it
12 *  under the terms of the GNU General Public License version 2 as published
13 *  by the Free Software Foundation.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/string.h>
19#include <linux/module.h>
20#include <linux/err.h>
21#include <linux/clk.h>
22#include <linux/device.h>
23
24#include <asm/mach-adm5120/adm5120_defs.h>
25
26struct clk {
27        unsigned long rate;
28};
29
30static struct clk uart_clk = {
31        .rate = ADM5120_UART_CLOCK
32};
33
34struct clk *clk_get(struct device *dev, const char *id)
35{
36        const char *name = dev_name(dev);
37
38        if (!strcmp(name, "apb:uart0") || !strcmp(name, "apb:uart1"))
39                return &uart_clk;
40
41        return ERR_PTR(-ENOENT);
42}
43EXPORT_SYMBOL(clk_get);
44
45int clk_enable(struct clk *clk)
46{
47        return 0;
48}
49EXPORT_SYMBOL(clk_enable);
50
51void clk_disable(struct clk *clk)
52{
53}
54EXPORT_SYMBOL(clk_disable);
55
56unsigned long clk_get_rate(struct clk *clk)
57{
58        return clk->rate;
59}
60EXPORT_SYMBOL(clk_get_rate);
61
62void clk_put(struct clk *clk)
63{
64}
65EXPORT_SYMBOL(clk_put);
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