diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 6737b1cbf6d6..9bfb8c34104a 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/platform_device.h>
 
 #include <acpi/processor.h>
 
@@ -148,6 +149,34 @@ static int acpi_processor_errata(void)
 	return result;
 }
 
+/* Create a platform device to represent a CPU frequency control mechanism. */
+static void cpufreq_add_device(const char *name)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_simple(name, PLATFORM_DEVID_NONE, NULL,
+					       0);
+	if (IS_ERR(pdev))
+		pr_err("%s device creation failed: %ld\n", name, PTR_ERR(pdev));
+}
+
+#ifdef CONFIG_X86
+/* Check presence of Processor Clocking Control by searching for \_SB.PCCH. */
+void __init acpi_pcc_cpufreq_init(void)
+{
+	acpi_status status;
+	acpi_handle handle;
+
+	status = acpi_get_handle(NULL, "\\_SB", &handle);
+	if (ACPI_FAILURE(status))
+		return;
+	if (acpi_has_method(handle, "PCCH"))
+		cpufreq_add_device("pcc-cpufreq");
+}
+#else
+void __init acpi_pcc_cpufreq_init(void) {}
+#endif /* CONFIG_X86 */
+
 /* Initialization */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 int __weak acpi_map_cpu(acpi_handle handle,
@@ -280,14 +309,22 @@ static int acpi_processor_get_info(struct acpi_device *device)
 		dev_dbg(&device->dev, "Failed to get CPU physical ID.\n");
 
 	pr->id = acpi_map_cpuid(pr->phys_id, pr->acpi_id);
-	if (!cpu0_initialized && !acpi_has_cpu_in_madt()) {
+	if (!cpu0_initialized) {
 		cpu0_initialized = 1;
 		/*
 		 * Handle UP system running SMP kernel, with no CPU
 		 * entry in MADT
 		 */
-		if (invalid_logical_cpuid(pr->id) && (num_online_cpus() == 1))
+		if (!acpi_has_cpu_in_madt() && invalid_logical_cpuid(pr->id) &&
+		    (num_online_cpus() == 1))
 			pr->id = 0;
+		/*
+		 * Check availability of Processor Performance Control by
+		 * looking at the presence of the _PCT object under the first
+		 * processor definition.
+		 */
+		if (acpi_has_method(pr->handle, "_PCT"))
+			cpufreq_add_device("acpi-cpufreq");
 	}
 
 	/*
@@ -686,6 +723,7 @@ void __init acpi_processor_init(void)
 	acpi_processor_check_duplicates();
 	acpi_scan_add_handler_with_hotplug(&processor_handler, "processor");
 	acpi_scan_add_handler(&processor_container_handler);
+	acpi_pcc_cpufreq_init();
 }
 
 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 78adfb2ffff6..e1a5384cf21c 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -965,7 +965,7 @@ static void __init acpi_cpufreq_boost_init(void)
 	acpi_cpufreq_driver.boost_enabled = boost_state(0);
 }
 
-static int __init acpi_cpufreq_init(void)
+static int __init acpi_cpufreq_probe(struct platform_device *pdev)
 {
 	int ret;
 
@@ -1010,13 +1010,32 @@ static int __init acpi_cpufreq_init(void)
 	return ret;
 }
 
-static void __exit acpi_cpufreq_exit(void)
+static int acpi_cpufreq_remove(struct platform_device *pdev)
 {
 	pr_debug("%s\n", __func__);
 
 	cpufreq_unregister_driver(&acpi_cpufreq_driver);
 
 	free_acpi_perf_data();
+
+	return 0;
+}
+
+static struct platform_driver acpi_cpufreq_platdrv = {
+	.driver = {
+		.name	= "acpi-cpufreq",
+	},
+	.remove		= acpi_cpufreq_remove,
+};
+
+static int __init acpi_cpufreq_init(void)
+{
+	return platform_driver_probe(&acpi_cpufreq_platdrv, acpi_cpufreq_probe);
+}
+
+static void __exit acpi_cpufreq_exit(void)
+{
+	platform_driver_unregister(&acpi_cpufreq_platdrv);
 }
 
 module_param(acpi_pstate_strict, uint, 0644);
@@ -1027,18 +1046,4 @@ MODULE_PARM_DESC(acpi_pstate_strict,
 late_initcall(acpi_cpufreq_init);
 module_exit(acpi_cpufreq_exit);
 
-static const struct x86_cpu_id __maybe_unused acpi_cpufreq_ids[] = {
-	X86_MATCH_FEATURE(X86_FEATURE_ACPI, NULL),
-	X86_MATCH_FEATURE(X86_FEATURE_HW_PSTATE, NULL),
-	{}
-};
-MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
-
-static const struct acpi_device_id __maybe_unused processor_device_ids[] = {
-	{ACPI_PROCESSOR_OBJECT_HID, },
-	{ACPI_PROCESSOR_DEVICE_HID, },
-	{},
-};
-MODULE_DEVICE_TABLE(acpi, processor_device_ids);
-
-MODULE_ALIAS("acpi");
+MODULE_ALIAS("platform:acpi-cpufreq");
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 9f3fc7a073d0..0c362932ca60 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -384,7 +384,7 @@ static int __init pcc_cpufreq_do_osc(acpi_handle *handle)
 	return ret;
 }
 
-static int __init pcc_cpufreq_probe(void)
+static int __init pcc_cpufreq_evaluate(void)
 {
 	acpi_status status;
 	struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
@@ -576,7 +576,7 @@ static struct cpufreq_driver pcc_cpufreq_driver = {
 	.name = "pcc-cpufreq",
 };
 
-static int __init pcc_cpufreq_init(void)
+static int __init pcc_cpufreq_probe(struct platform_device *pdev)
 {
 	int ret;
 
@@ -587,9 +587,9 @@ static int __init pcc_cpufreq_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
-	ret = pcc_cpufreq_probe();
+	ret = pcc_cpufreq_evaluate();
 	if (ret) {
-		pr_debug("pcc_cpufreq_init: PCCH evaluation failed\n");
+		pr_debug("pcc_cpufreq_probe: PCCH evaluation failed\n");
 		return ret;
 	}
 
@@ -607,21 +607,35 @@ static int __init pcc_cpufreq_init(void)
 	return ret;
 }
 
-static void __exit pcc_cpufreq_exit(void)
+static int pcc_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&pcc_cpufreq_driver);
 
 	pcc_clear_mapping();
 
 	free_percpu(pcc_cpu_info);
+
+	return 0;
 }
 
-static const struct acpi_device_id __maybe_unused processor_device_ids[] = {
-	{ACPI_PROCESSOR_OBJECT_HID, },
-	{ACPI_PROCESSOR_DEVICE_HID, },
-	{},
+static struct platform_driver pcc_cpufreq_platdrv = {
+	.driver = {
+		.name	= "pcc-cpufreq",
+	},
+	.remove		= pcc_cpufreq_remove,
 };
-MODULE_DEVICE_TABLE(acpi, processor_device_ids);
+
+static int __init pcc_cpufreq_init(void)
+{
+	return platform_driver_probe(&pcc_cpufreq_platdrv, pcc_cpufreq_probe);
+}
+
+static void __exit pcc_cpufreq_exit(void)
+{
+	platform_driver_unregister(&pcc_cpufreq_platdrv);
+}
+
+MODULE_ALIAS("platform:pcc-cpufreq");
 
 MODULE_AUTHOR("Matthew Garrett, Naga Chumbalkar");
 MODULE_VERSION(PCC_VERSION);
