linux-stable/arch/arm/mach-mvebu
Thomas Petazzoni 52fcc56753 ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
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>
2014-06-20 20:38:14 +00:00
..
include/mach ARM: mvebu: Simplify headers and make local 2014-02-22 21:19:59 +00:00
armada-370-xp.h irqchip: irq-armada-370-xp: Use cpu notifier to initialize secondary CPUs 2014-05-08 14:42:00 +00:00
board-v7.c Fix ARM merge mistake in mvebu board file 2014-06-06 10:24:07 -07:00
board.h ARM: Kirkwood: t5325: Remove platform device to instantiate audio 2014-05-08 16:23:28 +00:00
coherency.c ARM: mvebu: coherency: fix registration of PCI bus notifier when !PCI 2014-05-22 14:17:46 +00:00
coherency.h ARM: mvebu: Remove the unused argument of set_cpu_coherent() 2014-05-08 16:18:52 +00:00
coherency_ll.S ARM: mvebu: returns ll_get_cpuid() to ll_get_coherency_cpumask() 2014-05-22 14:26:30 +00:00
common.h ARM: mvebu: add function to set the resume boot address for Armada 375 2014-05-08 16:08:14 +00:00
cpu-reset.c ARM: mvebu: start using the CPU reset driver 2014-04-24 05:24:03 +00:00
dove.c bus: mvebu: pass the coherency availability information at init time 2014-04-24 05:00:36 +00:00
headsmp-a9.S ARM: mvebu: add workaround for SMP support for Armada 375 stepping Z1 2014-05-08 16:08:30 +00:00
headsmp.S ARM: mvebu: Split low level functions to manipulate HW coherency 2014-05-08 16:18:54 +00:00
hotplug.c ARM: mvebu: fix some sparse warnings 2013-11-24 03:27:54 +00:00
Kconfig ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms 2014-06-20 20:38:14 +00:00
kirkwood-pm.c ARM: mvebu: Simplify headers and make local 2014-02-22 21:19:59 +00:00
kirkwood-pm.h ARM: mvebu: Move kirkwood DT boards into mach-mvebu 2014-02-22 21:19:55 +00:00
kirkwood.c ARM: Kirkwood: t5325: Remove platform device to instantiate audio 2014-05-08 16:23:28 +00:00
kirkwood.h ARM: mvebu: Simplify headers and make local 2014-02-22 21:19:59 +00:00
Makefile ARM: mvebu: Fix pmsu compilation when ARMv6 is selected 2014-05-08 16:55:55 +00:00
mvebu-soc-id.c ARM: SoC updates for 3.16 (part 1) 2014-06-02 16:15:12 -07:00
mvebu-soc-id.h ARM: mvebu: add Armada 375 A0 revision definition 2014-05-08 16:40:14 +00:00
platsmp-a9.c ARM: mvebu: conditionalize Armada 375 SMP workaround 2014-05-08 16:40:15 +00:00
platsmp.c ARM: mvebu: Remove the unused argument of set_cpu_coherent() 2014-05-08 16:18:52 +00:00
pmsu.c ARM: mvebu: register the cpuidle driver for the Armada XP SoCs 2014-05-08 16:19:03 +00:00
pmsu.h arm: mvebu: Add initial support for power managmement service unit 2012-11-21 16:49:36 +01:00
system-controller.c ARM: mvebu: add function to set the resume boot address for Armada 375 2014-05-08 16:08:14 +00:00