Messages in this thread Patch in this message | | | From | Gregory CLEMENT <> | Subject | [PATCH v7 09/11] ARM: mvebu: Register notifier callback for the cpuidle transition | Date | Mon, 14 Apr 2014 17:10:12 +0200 |
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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); -- 1.8.1.2
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