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ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 

The first and second arguments shouldn't concern platform code, so
hide them from each platforms caller.

Tested-by: Kevin Hilman <khilman@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-06-22 17:41:48 +01:00
parent 14c79bbed7
commit 2c74a0cefa
11 changed files with 37 additions and 15 deletions
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19
arch/arm/include/asm/suspend.h Normal file
View File

@ -0,0 +1,19 @@
#ifndef __ASM_ARM_SUSPEND_H
#define __ASM_ARM_SUSPEND_H
#include <asm/memory.h>
extern void cpu_resume(void);
/*
* Hide the first two arguments to __cpu_suspend - these are an implementation
* detail which platform code shouldn't have to know about.
*/
static inline void cpu_suspend(unsigned long arg, void (*fn)(unsigned long))
{
extern void __cpu_suspend(int, long, unsigned long,
void (*)(unsigned long));
__cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, arg, fn);
}
#endif

2
arch/arm/include/asm/system.h
View File

@ -106,8 +106,6 @@ extern void __show_regs(struct pt_regs *);
extern int cpu_architecture(void);
extern void cpu_init(void);
extern void cpu_suspend(int, long, unsigned long, void (*)(unsigned long));
extern void cpu_resume(void);
void arm_machine_restart(char mode, const char *cmd);
extern void (*arm_pm_restart)(char str, const char *cmd);

4
arch/arm/kernel/sleep.S
View File

@ -14,7 +14,7 @@
* r3 = suspend function
* Note: does not return until system resumes
*/
ENTRY(cpu_suspend)
ENTRY(__cpu_suspend)
stmfd sp!, {r4 - r11, lr}
#ifdef MULTI_CPU
ldr r10, =processor
@ -56,7 +56,7 @@ ENTRY(cpu_suspend)
bl __cpuc_flush_kern_all
#endif
ldmfd sp!, {r0, pc} @ call suspend fn
ENDPROC(cpu_suspend)
ENDPROC(__cpu_suspend)
.ltorg
/*

5
arch/arm/mach-omap2/pm34xx.c
View File

@ -31,6 +31,8 @@
#include <linux/console.h>
#include <trace/events/power.h>
#include <asm/suspend.h>
#include <plat/sram.h>
#include "clockdomain.h"
#include "powerdomain.h"
@ -411,8 +413,7 @@ void omap_sram_idle(void)
* from there before resuming.
*/
if (save_state == 1 || save_state == 3)
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, save_state,
omap34xx_do_sram_idle);
cpu_suspend(save_state, omap34xx_do_sram_idle);
else
omap34xx_do_sram_idle(save_state);

1
arch/arm/mach-pxa/palmz72.c
View File

@ -33,6 +33,7 @@
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/suspend.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

4
arch/arm/mach-pxa/pxa25x.c
View File

@ -25,6 +25,7 @@
#include <linux/irq.h>
#include <asm/mach/map.h>
#include <asm/suspend.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
@ -244,8 +245,7 @@ static void pxa25x_cpu_pm_enter(suspend_state_t state)
switch (state) {
case PM_SUSPEND_MEM:
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, PWRMODE_SLEEP,
pxa25x_finish_suspend);
cpu_suspend(PWRMODE_SLEEP, pxa25x_finish_suspend);
break;
}
}

4
arch/arm/mach-pxa/pxa27x.c
View File

@ -24,6 +24,7 @@
#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/suspend.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include <mach/pxa27x.h>
@ -304,8 +305,7 @@ void pxa27x_cpu_pm_enter(suspend_state_t state)
pxa_cpu_standby();
break;
case PM_SUSPEND_MEM:
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, pwrmode,
pxa27x_finish_suspend);
cpu_suspend(pwrmode, pxa27x_finish_suspend);
#ifndef CONFIG_IWMMXT
asm volatile("mar acc0, %Q0, %R0" : "=r" (acc0));
#endif

3
arch/arm/mach-pxa/pxa3xx.c
View File

@ -24,6 +24,7 @@
#include <linux/i2c/pxa-i2c.h>
#include <asm/mach/map.h>
#include <asm/suspend.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <mach/pxa3xx-regs.h>
@ -167,7 +168,7 @@ static void pxa3xx_cpu_pm_suspend(void)
/* overwrite with the resume address */
*p = virt_to_phys(cpu_resume);
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, 0, pxa3xx_finish_suspend);
cpu_suspend(0, pxa3xx_finish_suspend);
*p = saved_data;

4
arch/arm/mach-pxa/zeus.c
View File

@ -31,6 +31,7 @@
#include <linux/can/platform/mcp251x.h>
#include <asm/mach-types.h>
#include <asm/suspend.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@ -676,8 +677,7 @@ static struct pxa2xx_udc_mach_info zeus_udc_info = {
static void zeus_power_off(void)
{
local_irq_disable();
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, PWRMODE_DEEPSLEEP,
pxa27x_finish_suspend);
cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
}
#else
#define zeus_power_off NULL

3
arch/arm/mach-sa1100/pm.c
View File

@ -29,6 +29,7 @@
#include <mach/hardware.h>
#include <asm/memory.h>
#include <asm/suspend.h>
#include <asm/system.h>
#include <asm/mach/time.h>
@ -75,7 +76,7 @@ static int sa11x0_pm_enter(suspend_state_t state)
PSPR = virt_to_phys(cpu_resume);
/* go zzz */
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, 0, sa1100_finish_suspend);
cpu_suspend(0, sa1100_finish_suspend);
/*
* Ensure not to come back here if it wasn't intended

3
arch/arm/plat-samsung/pm.c
View File

@ -20,6 +20,7 @@
#include <linux/io.h>
#include <asm/cacheflush.h>
#include <asm/suspend.h>
#include <mach/hardware.h>
#include <mach/map.h>
@ -298,7 +299,7 @@ static int s3c_pm_enter(suspend_state_t state)
* we resume as it saves its own register state and restores it
* during the resume. */
cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, 0, pm_cpu_sleep);
cpu_suspend(0, pm_cpu_sleep);
/* restore the system state */