Messages in this thread | | | Date | Thu, 03 Apr 2014 10:18:20 +0200 | From | Daniel Lezcano <> | Subject | Re: [PATCH v6 09/11] ARM: mvebu: Register notifier callback for the cpuidle transition |
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On 03/28/2014 12:13 PM, Gregory CLEMENT wrote: > In order to have well encapsulated code, we use notifier callbacks for > CPU_PM_ENTER and CPU_PM_EXIT inside the mvebu power management code. > > Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> --- > arch/arm/mach-mvebu/pmsu.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c > index 968c8c02c126..9ea2bb44d573 100644 > --- a/arch/arm/mach-mvebu/pmsu.c > +++ b/arch/arm/mach-mvebu/pmsu.c > @@ -18,6 +18,7 @@ > > #define pr_fmt(fmt) "mvebu-pmsu: " fmt > > +#include <linux/cpu_pm.h> > #include <linux/kernel.h> > #include <linux/init.h> > #include <linux/of_address.h> > @@ -263,4 +264,21 @@ static noinline void armada_370_xp_pmsu_idle_restore(void) > writel(reg, pmsu_mp_base + PMSU_STATUS_AND_MASK(hw_cpu)); > } > > +static int armada_370_xp_cpu_pm_notify(struct notifier_block *self, > + unsigned long action, void *hcpu) > +{ > + if (action == CPU_PM_ENTER) { > + unsigned int hw_cpu = cpu_logical_map(smp_processor_id()); > + mvebu_pmsu_set_cpu_boot_addr(hw_cpu, armada_370_xp_cpu_resume); > + } else if (action == CPU_PM_EXIT) { > + armada_370_xp_pmsu_idle_restore(); > + } > + > + return NOTIFY_OK; > +} > + > +static struct notifier_block armada_370_xp_cpu_pm_notifier = { > + .notifier_call = armada_370_xp_cpu_pm_notify, > +}; > + > early_initcall(armada_370_xp_pmsu_init); >
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