mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 18:11:56 +00:00
2eaa03b5be
Replace sysdev classes and struct sys_device objects used for "core" power management by the PXA platform code with struct syscore_ops objects that are simpler. This reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
55 lines
1.0 KiB
C
55 lines
1.0 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/syscore_ops.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(void)
|
|
{
|
|
saved_cken = CKEN;
|
|
return 0;
|
|
}
|
|
|
|
static void pxa2xx_clock_resume(void)
|
|
{
|
|
CKEN = saved_cken;
|
|
}
|
|
#else
|
|
#define pxa2xx_clock_suspend NULL
|
|
#define pxa2xx_clock_resume NULL
|
|
#endif
|
|
|
|
struct syscore_ops pxa2xx_clock_syscore_ops = {
|
|
.suspend = pxa2xx_clock_suspend,
|
|
.resume = pxa2xx_clock_resume,
|
|
};
|