diff options
| -rw-r--r-- | arch/arm/mach-omap2/pm44xx.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 781aadf98e32..72c745047514 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -108,6 +108,24 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) } /** + * omap_default_idle - OMAP4 default ilde routine.' + * + * Implements OMAP4 memory, IO ordering requirements which can't be addressed + * with default arch_idle() hook. Used by all CPUs with !CONFIG_CPUIDLE and + * by secondary CPU with CONFIG_CPUIDLE. + */ +static void omap_default_idle(void) +{ + local_irq_disable(); + local_fiq_disable(); + + omap_do_wfi(); + + local_fiq_enable(); + local_irq_enable(); +} + +/** * omap4_pm_init - Init routine for OMAP4 PM * * Initializes all powerdomain and clockdomain target states @@ -175,6 +193,9 @@ static int __init omap4_pm_init(void) suspend_set_ops(&omap_pm_ops); #endif /* CONFIG_SUSPEND */ + /* Overwrite the default arch_idle() */ + pm_idle = omap_default_idle; + err2: return ret; } |
