mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 23:53:55 +08:00
aae8224ddd
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
|
|
* linux/arch/arm/mach-pxa/clock-pxa2xx.c
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/sysdev.h>
|
|
|
|
#include <mach/pxa2xx-regs.h>
|
|
|
|
#include "clock.h"
|
|
|
|
void clk_pxa2xx_cken_enable(struct clk *clk)
|
|
{
|
|
CKEN |= 1 << clk->cken;
|
|
}
|
|
|
|
void clk_pxa2xx_cken_disable(struct clk *clk)
|
|
{
|
|
CKEN &= ~(1 << clk->cken);
|
|
}
|
|
|
|
const struct clkops clk_pxa2xx_cken_ops = {
|
|
.enable = clk_pxa2xx_cken_enable,
|
|
.disable = clk_pxa2xx_cken_disable,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static uint32_t saved_cken;
|
|
|
|
static int pxa2xx_clock_suspend(struct sys_device *d, pm_message_t state)
|
|
{
|
|
saved_cken = CKEN;
|
|
return 0;
|
|
}
|
|
|
|
static int pxa2xx_clock_resume(struct sys_device *d)
|
|
{
|
|
CKEN = saved_cken;
|
|
return 0;
|
|
}
|
|
#else
|
|
#define pxa2xx_clock_suspend NULL
|
|
#define pxa2xx_clock_resume NULL
|
|
#endif
|
|
|
|
struct sysdev_class pxa2xx_clock_sysclass = {
|
|
.name = "pxa2xx-clock",
|
|
.suspend = pxa2xx_clock_suspend,
|
|
.resume = pxa2xx_clock_resume,
|
|
};
|
|
|
|
static int __init pxa2xx_clock_init(void)
|
|
{
|
|
if (cpu_is_pxa2xx())
|
|
return sysdev_class_register(&pxa2xx_clock_sysclass);
|
|
return 0;
|
|
}
|
|
postcore_initcall(pxa2xx_clock_init);
|