75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* pci-atom_soc.c - register Intel MID PCI plaform ops
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*
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* Copyright (c) 2013, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <linux/init.h>
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#include <linux/intel_mid_pm.h>
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#include <linux/kernel.h>
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#include "pci.h"
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static pci_power_t mid_pci_choose_state(struct pci_dev *pdev)
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{
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return PCI_D3hot;
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}
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static int mid_pci_sleep_wake(struct pci_dev *dev, bool enable)
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{
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return 0;
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}
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static int mid_pci_run_wake(struct pci_dev *dev, bool enable)
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{
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return 0;
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}
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static struct pci_platform_pm_ops mid_pci_platform_pm = {
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.is_manageable = pmu_pci_power_manageable,
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.choose_state = mid_pci_choose_state,
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.sleep_wake = mid_pci_sleep_wake,
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.run_wake = mid_pci_run_wake,
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.set_state = pmu_pci_set_power_state,
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.choose_state = pmu_pci_choose_state,
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};
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/**
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* mid_pci_init - It registers callback function for all the PCI devices
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* for platform specific device power on/shutdown acticities.
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*/
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static int __init mid_pci_init(void)
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{
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if (boot_cpu_data.x86 != 6)
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return 0;
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/*
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* n.b. this model check does not uniquely identify the platform,
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* and additional checks are necessary inside the pmu driver
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*/
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switch (boot_cpu_data.x86_model) {
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case INTEL_ATOM_MFLD:
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case INTEL_ATOM_CLV:
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case INTEL_ATOM_MRFLD:
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case INTEL_ATOM_MOORFLD:
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pci_set_platform_pm(&mid_pci_platform_pm);
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break;
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}
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return 0;
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}
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arch_initcall(mid_pci_init);
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