65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
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* linux/arch/arm/mach-pxa/clock-pxa2xx.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/sysdev.h>
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#include <mach/pxa2xx-regs.h>
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#include "clock.h"
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void clk_pxa2xx_cken_enable(struct clk *clk)
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{
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CKEN |= 1 << clk->cken;
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}
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void clk_pxa2xx_cken_disable(struct clk *clk)
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{
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CKEN &= ~(1 << clk->cken);
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}
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const struct clkops clk_pxa2xx_cken_ops = {
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.enable = clk_pxa2xx_cken_enable,
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.disable = clk_pxa2xx_cken_disable,
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};
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#ifdef CONFIG_PM
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static uint32_t saved_cken;
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static int pxa2xx_clock_suspend(struct sys_device *d, pm_message_t state)
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{
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saved_cken = CKEN;
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return 0;
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}
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static int pxa2xx_clock_resume(struct sys_device *d)
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{
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CKEN = saved_cken;
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return 0;
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}
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#else
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#define pxa2xx_clock_suspend NULL
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#define pxa2xx_clock_resume NULL
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#endif
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struct sysdev_class pxa2xx_clock_sysclass = {
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.name = "pxa2xx-clock",
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.suspend = pxa2xx_clock_suspend,
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.resume = pxa2xx_clock_resume,
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};
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static int __init pxa2xx_clock_init(void)
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{
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if (cpu_is_pxa2xx())
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return sysdev_class_register(&pxa2xx_clock_sysclass);
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return 0;
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}
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postcore_initcall(pxa2xx_clock_init);
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