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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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32 lines
628 B
C
32 lines
628 B
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* PM domains for CPUs via genpd - managed by cpuidle-psci.
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*
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* Copyright (C) 2019 Linaro Ltd.
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* Author: Ulf Hansson <ulf.hansson@linaro.org>
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*
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*/
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#include <linux/cpu.h>
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/pm_domain.h>
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#include <linux/pm_runtime.h>
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#include "cpuidle-psci.h"
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struct device __init *psci_dt_attach_cpu(int cpu)
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{
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struct device *dev;
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dev = dev_pm_domain_attach_by_name(get_cpu_device(cpu), "psci");
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if (IS_ERR_OR_NULL(dev))
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return dev;
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pm_runtime_irq_safe(dev);
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if (cpu_online(cpu))
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pm_runtime_get_sync(dev);
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return dev;
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}
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