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a5cb6b2bbf
Pull x86 platform driver updates from Ilpo Järvinen: - amd/pmf: Report system state changes using existing input events - asus-wmi: Zenbook 2023 camera LED disable support and fix TUF laptop keyboard RGB LED sysfs interface - dell-pc: Fan modes / platform profile support - hp-wmi: Fix platform profile switching on Omen/Victus laptops - intel/ISST: Use only TPMI interface when TPMI and legacy interfaces are available - intel/pmc: LTR restore support to pair with LTR ignore - intel/tpmi: Performance Limit Reasons (PLR) and APIC <-> Punit CPU numbering mapping support - WMI: driver override support and docs improvements - lenovo-yoga-c630: Support for EC (platform/arm64) - platform/arm64: Fix build with COMPILE_TEST (broke after addition of C630) - tools: Intel Speed Select Turbo Ratio Limit fix - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits) platform/x86: asus-wmi: fix TUF laptop RGB variant platform/x86/intel/tpmi/plr: Fix output in plr_print_bits() Docs/admin-guide: Remove pmf leftover reference from the index platform/x86: ideapad-laptop: use cleanup.h platform/x86: hp-wmi: Fix implementation of the platform_profile_omen_get function platform: arm64: EC_LENOVO_YOGA_C630 should depend on ARCH_QCOM platform: arm64: EC_ACER_ASPIRE1 should depend on ARCH_QCOM platform/x86/amd/pmf: Remove update system state document platform/x86/amd/pmf: Use existing input event codes to update system states platform/x86: hp-wmi: Fix platform profile option switch bug on Omen and Victus laptops platform/x86:intel/pmc: Add support to undo ltr_ignore platform/x86:intel/pmc: Use the Elvis operator platform/x86:intel/pmc: Use DEFINE_SHOW_STORE_ATTRIBUTE macro platform/x86:intel/pmc: Remove unneeded min_t check platform/x86:intel/pmc: Add support to show ltr_ignore value platform/x86:intel/pmc: Move pmc assignment closer to first usage platform/x86:intel/pmc: Convert index variables to be unsigned platform/x86:intel/pmc: Simplify mutex usage with cleanup helpers platform/x86:intel/pmc: Use the return value of pmc_core_send_msg tools/power/x86/intel-speed-select: v1.20 release ...
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Intel PMC Core platform init
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* Copyright (c) 2019, Google Inc.
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* Author - Rajat Jain
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*
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* This code instantiates platform devices for intel_pmc_core driver, only
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* on supported platforms that may not have the ACPI devices in the ACPI tables.
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* No new platforms should be added here, because we expect that new platforms
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* should all have the ACPI device, which is the preferred way of enumeration.
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*/
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#include <linux/acpi.h>
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#include <linux/module.h>
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#include <linux/platform_device.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 <xen/xen.h>
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static void intel_pmc_core_release(struct device *dev)
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{
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kfree(dev);
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}
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static struct platform_device *pmc_core_device;
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/*
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* intel_pmc_core_platform_ids is the list of platforms where we want to
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* instantiate the platform_device if not already instantiated. This is
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* different than intel_pmc_core_ids in intel_pmc_core.c which is the
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* list of platforms that the driver supports for pmc_core device. The
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* other list may grow, but this list should not.
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*/
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static const struct x86_cpu_id intel_pmc_core_platform_ids[] = {
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X86_MATCH_VFM(INTEL_SKYLAKE_L, &pmc_core_device),
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X86_MATCH_VFM(INTEL_SKYLAKE, &pmc_core_device),
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X86_MATCH_VFM(INTEL_KABYLAKE_L, &pmc_core_device),
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X86_MATCH_VFM(INTEL_KABYLAKE, &pmc_core_device),
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X86_MATCH_VFM(INTEL_CANNONLAKE_L, &pmc_core_device),
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X86_MATCH_VFM(INTEL_ICELAKE_L, &pmc_core_device),
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X86_MATCH_VFM(INTEL_COMETLAKE, &pmc_core_device),
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X86_MATCH_VFM(INTEL_COMETLAKE_L, &pmc_core_device),
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{}
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};
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MODULE_DEVICE_TABLE(x86cpu, intel_pmc_core_platform_ids);
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static int __init pmc_core_platform_init(void)
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{
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int retval;
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/* Skip creating the platform device if ACPI already has a device */
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if (acpi_dev_present("INT33A1", NULL, -1))
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return -ENODEV;
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/*
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* Skip forcefully attaching the device for VMs. Make an exception for
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* Xen dom0, which does have full hardware access.
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*/
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if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR) && !xen_initial_domain())
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return -ENODEV;
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if (!x86_match_cpu(intel_pmc_core_platform_ids))
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return -ENODEV;
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pmc_core_device = kzalloc(sizeof(*pmc_core_device), GFP_KERNEL);
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if (!pmc_core_device)
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return -ENOMEM;
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pmc_core_device->name = "intel_pmc_core";
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pmc_core_device->dev.release = intel_pmc_core_release;
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retval = platform_device_register(pmc_core_device);
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if (retval)
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platform_device_put(pmc_core_device);
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return retval;
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}
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static void __exit pmc_core_platform_exit(void)
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{
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platform_device_unregister(pmc_core_device);
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}
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module_init(pmc_core_platform_init);
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module_exit(pmc_core_platform_exit);
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MODULE_DESCRIPTION("Intel PMC Core platform driver");
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MODULE_LICENSE("GPL v2");
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