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ARM: mach-gemini: move special idle code out of line

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... and hook it to arm_pm_idle.

Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org>
This commit is contained in:
Nicolas Pitre 2011-08-03 06:29:42 -04:00 committed by Nicolas Pitre
parent 1b7f72fc39
commit 8925b0f88e
4 changed files with 32 additions and 12 deletions
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2
arch/arm/mach-gemini/Makefile
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@ -4,7 +4,7 @@
# Object file lists.
obj-y := irq.o mm.o time.o devices.o gpio.o
obj-y := irq.o mm.o time.o devices.o gpio.o idle.o
# Board-specific support
obj-$(CONFIG_MACH_NAS4220B) += board-nas4220b.o

29
arch/arm/mach-gemini/idle.c Normal file
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@ -0,0 +1,29 @@
/*
* arch/arm/mach-gemini/idle.c
*/
#include <linux/init.h>
#include <asm/system.h>
#include <asm/proc-fns.h>
static void gemini_idle(void)
{
/*
* Because of broken hardware we have to enable interrupts or the CPU
* will never wakeup... Acctualy it is not very good to enable
* interrupts first since scheduler can miss a tick, but there is
* no other way around this. Platforms that needs it for power saving
* should call enable_hlt() in init code, since by default it is
* disabled.
*/
local_irq_enable();
cpu_do_idle();
}
static int __init gemini_idle_init(void)
{
arm_pm_idle = gemini_idle;
return 0;
}
arch_initcall(gemini_idle_init);

9
arch/arm/mach-gemini/include/mach/system.h
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@ -16,15 +16,6 @@
static inline void arch_idle(void)
{
/*
* Because of broken hardware we have to enable interrupts or the CPU
* will never wakeup... Acctualy it is not very good to enable
* interrupts here since scheduler can miss a tick, but there is
* no other way around this. Platforms that needs it for power saving
* should call enable_hlt() in init code, since by default it is
* disabled.
*/
local_irq_enable();
cpu_do_idle();
}

4
arch/arm/mach-gemini/irq.c
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@ -73,8 +73,8 @@ void __init gemini_init_irq(void)
unsigned int i, mode = 0, level = 0;
/*
* Disable arch_idle() by default since it is buggy
* For more info see arch/arm/mach-gemini/include/mach/system.h
* Disable the idle handler by default since it is buggy
* For more info see arch/arm/mach-gemini/idle.c
*/
disable_hlt();