Merge branches 'pm-em', 'pm-powercap' and 'pm-sleep'

Merge additional updates related to the Energy Model, power capping
and system-wide power management for 6.9-rc1:

 - Modify the Energy Model code to bail out and complain if the unit of
   power is not uW to prevent errors due to unit mismatches (Lukasz
   Luba).

 - Make the intel_rapl platform driver use a remove callback returning
   void (Uwe Kleine-König).

 - Fix typo in the suspend and interrupts document (Saravana Kannan).

* pm-em:
  PM: EM: Force device drivers to provide power in uW

* pm-powercap:
  powercap: intel_rapl: Convert to platform remove callback returning void

* pm-sleep:
  Documentation: power: Fix typo in suspend and interrupts doc

Author: rafaeljw

Documentation/power/suspend-and-interrupts.rst

@@ -78,7 +78,7 @@ handling the given IRQ as a system wakeup interrupt line and disable_irq_wake()
 turns that logic off.
 
 Calling enable_irq_wake() causes suspend_device_irqs() to treat the given IRQ
-in a special way.  Namely, the IRQ remains enabled, by on the first interrupt
+in a special way.  Namely, the IRQ remains enabled, but on the first interrupt
 it will be disabled, marked as pending and "suspended" so that it will be
 re-enabled by resume_device_irqs() during the subsequent system resume.  Also
 the PM core is notified about the event which causes the system suspend in

drivers/powercap/intel_rapl_msr.c

@@ -197,11 +197,10 @@ static int rapl_msr_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int rapl_msr_remove(struct platform_device *pdev)
+static void rapl_msr_remove(struct platform_device *pdev)
 {
 	cpuhp_remove_state(rapl_msr_priv->pcap_rapl_online);
 	powercap_unregister_control_type(rapl_msr_priv->control_type);
-	return 0;
 }
 
 static const struct platform_device_id rapl_msr_ids[] = {
@@ -212,7 +211,7 @@ MODULE_DEVICE_TABLE(platform, rapl_msr_ids);
 
 static struct platform_driver intel_rapl_msr_driver = {
 	.probe = rapl_msr_probe,
-	.remove = rapl_msr_remove,
+	.remove_new = rapl_msr_remove,
 	.id_table = rapl_msr_ids,
 	.driver = {
 		.name = "intel_rapl_msr",

kernel/power/energy_model.c

@@ -612,6 +612,17 @@ int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,
 	else if (cb->get_cost)
 		flags |= EM_PERF_DOMAIN_ARTIFICIAL;
 
+	/*
+	 * EM only supports uW (exception is artificial EM).
+	 * Therefore, check and force the drivers to provide
+	 * power in uW.
+	 */
+	if (!microwatts && !(flags & EM_PERF_DOMAIN_ARTIFICIAL)) {
+		dev_err(dev, "EM: only supports uW power values\n");
+		ret = -EINVAL;
+		goto unlock;
+	}
+
 	ret = em_create_pd(dev, nr_states, cb, cpus, flags);
 	if (ret)
 		goto unlock;