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OMAP3: PM: Added resched check into idle calls

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Fixes a bug where scheduling is delayed until next wakeup due to race
condition (e.g. interrupt requests scheduling just before omap_sram_idle
is entered.)

Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Tero Kristo 2009-03-20 15:21:02 +02:00 committed by Kevin Hilman
parent da869621c3
commit cf22854cee
2 changed files with 3 additions and 2 deletions
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3
arch/arm/mach-omap2/cpuidle34xx.c
View file

@ -22,6 +22,7 @@
* published by the Free Software Foundation.
*/
#include <linux/sched.h>
#include <linux/cpuidle.h>
#include <plat/prcm.h>
@ -113,7 +114,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
pwrdm_set_next_pwrst(mpu_pd, mpu_state);
pwrdm_set_next_pwrst(core_pd, core_state);
if (omap_irq_pending())
if (omap_irq_pending() || need_resched())
goto return_sleep_time;
if (cx->type == OMAP3_STATE_C1) {

2
arch/arm/mach-omap2/pm34xx.c
View file

@ -523,7 +523,7 @@ static void omap3_pm_idle(void)
if (!omap3_can_sleep())
goto out;
if (omap_irq_pending())
if (omap_irq_pending() || need_resched())
goto out;
omap_sram_idle();