Hibernation: Clean up Kconfig (V2)

This cleans up the hibernation Kconfig and removes the need to
declare centrally which architectures support hibernation. All
architectures that currently support hibernation are modified
accordingly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

arch/powerpc/Kconfig

@@ -151,9 +151,19 @@ config DEFAULT_UIMAGE
 config REDBOOT
 	bool
 
-config PPC64_SWSUSP
+config HIBERNATE_32
 	bool
-	depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL))
+	depends on (PPC_PMAC && !SMP) || BROKEN
+	default y
+
+config HIBERNATE_64
+	bool
+	depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
+	default y
+
+config ARCH_HIBERNATION_POSSIBLE
+	bool
+	depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
 	default y
 
 config PPC_DCR_NATIVE

arch/x86/Kconfig

@@ -112,6 +112,10 @@ config ARCH_SUPPORTS_OPROFILE
 
 select HAVE_KVM
 
+config ARCH_HIBERNATION_POSSIBLE
+	def_bool y
+	depends on !SMP || !X86_VOYAGER
+
 config ZONE_DMA32
 	bool
 	default X86_64

kernel/power/Kconfig

@@ -84,7 +84,8 @@ config PM_TRACE_RTC
 
 config PM_SLEEP_SMP
 	bool
-	depends on SUSPEND_SMP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+	depends on SMP
+	depends on SUSPEND_SMP_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
 	depends on PM_SLEEP
 	select HOTPLUG_CPU
 	default y
@@ -118,22 +119,9 @@ config SUSPEND
 	  powered and thus its contents are preserved, such as the
 	  suspend-to-RAM state (i.e. the ACPI S3 state).
 
-config HIBERNATION_UP_POSSIBLE
-	bool
-	depends on X86 || PPC64_SWSUSP || PPC32
-	depends on !SMP
-	default y
-
-config HIBERNATION_SMP_POSSIBLE
-	bool
-	depends on (X86 && !X86_VOYAGER) || PPC64_SWSUSP
-	depends on SMP
-	default y
-
 config HIBERNATION
 	bool "Hibernation (aka 'suspend to disk')"
-	depends on PM && SWAP
-	depends on HIBERNATION_UP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+	depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE
 	---help---
 	  Enable the suspend to disk (STD) functionality, which is usually
 	  called "hibernation" in user interfaces.  STD checkpoints the