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On Marvell Armada platforms, the PMSU (Power Management Service Unit) controls a number of power management related activities, needed for things like suspend/resume, CPU hotplug, cpuidle or even simply SMP. Since cpuidle support was added for Armada XP, the pmsu.c file in arch/arm/mach-mvebu/ calls the cpu_suspend() and cpu_resume() ARM functions, which are only available when CONFIG_ARM_CPU_SUSPEND=y. Therefore, configurations that have CONFIG_ARM_CPU_SUSPEND disabled due to PM_SLEEP being disabled no longer build properly, due to undefined references to cpu_suspend() and cpu_resume(). To fix this, this patch simply ensures CONFIG_ARM_CPU_SUSPEND is always enabled for Marvell EBU v7 platforms. Doing things in a more fine-grained way would require a lot of #ifdef-ery in pmsu.c to isolate the parts that use cpu_suspend()/cpu_resume(), and those parts would anyway have been needed as soon as either one of suspend/resume, CPU hotplug or cpuidle was enabled. Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1402488397-31381-1-git-send-email-thomas.petazzoni@free-electrons.com Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net> |
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.. | ||
include/mach | ||
armada-370-xp.h | ||
board-v7.c | ||
board.h | ||
coherency.c | ||
coherency.h | ||
coherency_ll.S | ||
common.h | ||
cpu-reset.c | ||
dove.c | ||
headsmp-a9.S | ||
headsmp.S | ||
hotplug.c | ||
Kconfig | ||
kirkwood-pm.c | ||
kirkwood-pm.h | ||
kirkwood.c | ||
kirkwood.h | ||
Makefile | ||
mvebu-soc-id.c | ||
mvebu-soc-id.h | ||
platsmp-a9.c | ||
platsmp.c | ||
pmsu.c | ||
pmsu.h | ||
system-controller.c |