Merge tag 'acpi-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI support fixes from Rafael Wysocki:

 - Revert a commit related to ACPI device power management that was
   not supposed to make any functional difference, but it did so and
   introduced a regression (Rafael Wysocki)

 - Update the _CPC object definition in ACPICA to match ACPI 6.6 and
   prevent the kernel from printing a false-positive warning regarding
   _CPC output package format on platforms shipping with firmware based
   on ACPI 6.6 (Saket Dumbre)

* tag 'acpi-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: PM: Let acpi_dev_pm_attach() skip devices without ACPI PM"
  ACPICA: Update the _CPC definition to match ACPI 6.6

Author: torvalds

drivers/acpi/acpica/acpredef.h

@@ -379,8 +379,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 
 	{{"_CPC", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Ints/Bufs) */
-	PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0,
-		     0, 0, 0),
+	PACKAGE_INFO(ACPI_PTYPE1_VAR,
+		     ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER |
+		     ACPI_RTYPE_PACKAGE, 0, 0, 0, 0),
 
 	{{"_CR3", METHOD_0ARGS,	/* ACPI 6.0 */
 	  METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},

drivers/acpi/device_pm.c

@@ -1456,15 +1456,6 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
 	if (!adev || !acpi_match_device_ids(adev, special_pm_ids))
 		return 0;
 
-	/*
-	 * Skip devices whose ACPI companions don't support power management and
-	 * don't have a wakeup GPE.
-	 */
-	if (!acpi_device_power_manageable(adev) && !acpi_device_can_wakeup(adev)) {
-		dev_dbg(dev, "No ACPI power management or wakeup GPE\n");
-		return 0;
-	}
-
 	/*
 	 * Only attach the power domain to the first device if the
 	 * companion is shared by multiple. This is to prevent doing power