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![Harry Pan](/assets/img/avatar_default.png)
Adding new CML CPU model ID into platform driver support list. Signed-off-by: Harry Pan <harry.pan@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
72 lines
2.1 KiB
C
72 lines
2.1 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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static void intel_pmc_core_release(struct device *dev)
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{
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/* Nothing to do. */
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}
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static struct platform_device pmc_core_device = {
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.name = "intel_pmc_core",
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.dev = {
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.release = intel_pmc_core_release,
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},
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};
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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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INTEL_CPU_FAM6(SKYLAKE_L, pmc_core_device),
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INTEL_CPU_FAM6(SKYLAKE, pmc_core_device),
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INTEL_CPU_FAM6(KABYLAKE_L, pmc_core_device),
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INTEL_CPU_FAM6(KABYLAKE, pmc_core_device),
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INTEL_CPU_FAM6(CANNONLAKE_L, pmc_core_device),
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INTEL_CPU_FAM6(ICELAKE_L, pmc_core_device),
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INTEL_CPU_FAM6(COMETLAKE, pmc_core_device),
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INTEL_CPU_FAM6(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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/* 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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if (!x86_match_cpu(intel_pmc_core_platform_ids))
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return -ENODEV;
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return platform_device_register(&pmc_core_device);
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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_LICENSE("GPL v2");
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