Merge branches 'pm-cpufreq' and 'pm-sleep'

* pm-cpufreq:
ACPI: processor: Avoid NULL pointer dereferences at init time
cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown

* pm-sleep:
PM: sleep: include <linux/pm_runtime.h> for pm_wq
ACPI: PM: Drop Dell XPS13 9360 from LPS0 Idle _DSM blacklist

drivers/acpi/processor_perflib.c

···
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 	int ret;
 
+	if (!pr)
+		return;
+
 	ret = dev_pm_qos_add_request(get_cpu_device(cpu),
 				     &pr->perflib_req, DEV_PM_QOS_MAX_FREQUENCY,
 				     INT_MAX);
-	if (ret < 0) {
+	if (ret < 0)
 		pr_err("Failed to add freq constraint for CPU%d (%d)\n", cpu,
 		       ret);
-		return;
-	}
 }
 
 void acpi_processor_ppc_exit(int cpu)
 {
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 
-	dev_pm_qos_remove_request(&pr->perflib_req);
+	if (pr)
+		dev_pm_qos_remove_request(&pr->perflib_req);
 }
 
 static int acpi_processor_get_performance_control(struct acpi_processor *pr)

drivers/acpi/processor_thermal.c

···
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 	int ret;
 
+	if (!pr)
+		return;
+
 	ret = dev_pm_qos_add_request(get_cpu_device(cpu),
 				     &pr->thermal_req, DEV_PM_QOS_MAX_FREQUENCY,
 				     INT_MAX);
-	if (ret < 0) {
+	if (ret < 0)
 		pr_err("Failed to add freq constraint for CPU%d (%d)\n", cpu,
 		       ret);
-		return;
-	}
 }
 
 void acpi_thermal_cpufreq_exit(int cpu)
 {
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 
-	dev_pm_qos_remove_request(&pr->thermal_req);
+	if (pr)
+		dev_pm_qos_remove_request(&pr->thermal_req);
 }
 #else				/* ! CONFIG_CPU_FREQ */
 static int cpufreq_get_max_state(unsigned int cpu)

drivers/acpi/sleep.c

···
 		},
 	},
 	/*
-	 * https://bugzilla.kernel.org/show_bug.cgi?id=196907
-	 * Some Dell XPS13 9360 cannot do suspend-to-idle using the Low Power
-	 * S0 Idle firmware interface.
-	 */
-	{
-	.callback = init_default_s3,
-	.ident = "Dell XPS13 9360",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
-		},
-	},
-	/*
 	 * ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using
 	 * the Low Power S0 Idle firmware interface (see
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=199057).

drivers/base/core.c

···
  */
 
 #include <linux/acpi.h>
+#include <linux/cpufreq.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/fwnode.h>
···
 
 	wait_for_device_probe();
 	device_block_probing();
+
+	cpufreq_suspend();
 
 	spin_lock(&devices_kset->list_lock);
 	/*

drivers/cpufreq/cpufreq.c

···
 }
 EXPORT_SYMBOL_GPL(cpufreq_unregister_driver);
 
-/*
- * Stop cpufreq at shutdown to make sure it isn't holding any locks
- * or mutexes when secondary CPUs are halted.
- */
-static struct syscore_ops cpufreq_syscore_ops = {
-	.shutdown = cpufreq_suspend,
-};
-
 struct kobject *cpufreq_global_kobject;
 EXPORT_SYMBOL(cpufreq_global_kobject);
 
···
 
 	cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj);
 	BUG_ON(!cpufreq_global_kobject);
-
-	register_syscore_ops(&cpufreq_syscore_ops);
 
 	return 0;
 }

kernel/power/main.c

···
 #include <linux/seq_file.h>
 #include <linux/suspend.h>
 #include <linux/syscalls.h>
+#include <linux/pm_runtime.h>
 
 #include "power.h"