Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle were: - Intel-SoC enhancements (Andy Shevchenko) - Intel CPU symbolic model definition rework (Dave Hansen) - ... other misc changes" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) x86/sfi: Enable enumeration of SD devices x86/pci: Use MRFLD abbreviation for Merrifield x86/platform/intel-mid: Make vertical indentation consistent x86/platform/intel-mid: Mark regulators explicitly defined x86/platform/intel-mid: Rename mrfl.c to mrfld.c x86/platform/intel-mid: Enable spidev on Intel Edison boards x86/platform/intel-mid: Extend PWRMU to support Penwell x86/pci, x86/platform/intel_mid_pci: Remove duplicate power off code x86/platform/intel-mid: Add pinctrl for Intel Merrifield x86/platform/intel-mid: Enable GPIO expanders on Edison x86/platform/intel-mid: Add Power Management Unit driver x86/platform/atom/punit: Enable support for Merrifield x86/platform/intel_mid_pci: Rework IRQ0 workaround x86, thermal: Clean up and fix CPU model detection for intel_soc_dts_thermal x86, mmc: Use Intel family name macros for mmc driver x86/intel_telemetry: Use Intel family name macros for telemetry driver x86/acpi/lss: Use Intel family name macros for the acpi_lpss driver x86/cpufreq: Use Intel family name macros for the intel_pstate cpufreq driver x86/platform: Use new Intel model number macros x86/intel_idle: Use Intel family macros for intel_idle ...
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@@ -51,6 +51,9 @@ obj-$(CONFIG_ACPI) += pci-acpi.o
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# SMBIOS provided firmware instance and labels
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obj-$(CONFIG_PCI_LABEL) += pci-label.o
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# Intel MID platform PM support
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obj-$(CONFIG_X86_INTEL_MID) += pci-mid.o
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obj-$(CONFIG_PCI_SYSCALL) += syscall.o
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obj-$(CONFIG_PCI_STUB) += pci-stub.o
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77
drivers/pci/pci-mid.c
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77
drivers/pci/pci-mid.c
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@@ -0,0 +1,77 @@
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/*
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* Intel MID platform PM support
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*
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* Copyright (C) 2016, Intel Corporation
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*
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* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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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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#include <linux/init.h>
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#include <linux/pci.h>
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#include <asm/cpu_device_id.h>
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#include <asm/intel-family.h>
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#include <asm/intel-mid.h>
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#include "pci.h"
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static bool mid_pci_power_manageable(struct pci_dev *dev)
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{
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return true;
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}
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static int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
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{
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return intel_mid_pci_set_power_state(pdev, state);
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}
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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 bool mid_pci_need_resume(struct pci_dev *dev)
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{
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return false;
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}
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static struct pci_platform_pm_ops mid_pci_platform_pm = {
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.is_manageable = mid_pci_power_manageable,
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.set_state = mid_pci_set_power_state,
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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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.need_resume = mid_pci_need_resume,
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};
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#define ICPU(model) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
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static const struct x86_cpu_id lpss_cpu_ids[] = {
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ICPU(INTEL_FAM6_ATOM_MERRIFIELD1),
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{}
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};
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static int __init mid_pci_init(void)
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{
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const struct x86_cpu_id *id;
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id = x86_match_cpu(lpss_cpu_ids);
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if (id)
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pci_set_platform_pm(&mid_pci_platform_pm);
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return 0;
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}
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arch_initcall(mid_pci_init);
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