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ARM: 8510/1: rework ARM_CPU_SUSPEND dependencies

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The code enabled by the ARM_CPU_SUSPEND config option is used by
kernel subsystems for purposes that go beyond system suspend so its
config entry should be augmented to take more default options into
account and avoid forcing its selection to prevent dependencies
override.

To achieve this goal, this patch reworks the ARM_CPU_SUSPEND config
entry and updates its default config value (by adding the BL_SWITCHER
option to it) and its dependencies (ARCH_SUSPEND_POSSIBLE), so that the
symbol is still selected by default by the subsystems requiring it and
at the same time enforcing the dependencies correctly.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Lorenzo Pieralisi 2016-02-01 18:01:29 +01:00 committed by Russell King
parent ccc66e7382
commit 1b9bdf5c16
1 changed files with 2 additions and 2 deletions
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arch/arm/Kconfig
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@ -1337,7 +1337,6 @@ config BIG_LITTLE
config BL_SWITCHER
bool "big.LITTLE switcher support"
depends on BIG_LITTLE && MCPM && HOTPLUG_CPU && ARM_GIC
select ARM_CPU_SUSPEND
select CPU_PM
help
The big.LITTLE "switcher" provides the core functionality to
@ -2111,7 +2110,8 @@ config ARCH_SUSPEND_POSSIBLE
def_bool y
config ARM_CPU_SUSPEND
def_bool PM_SLEEP
def_bool PM_SLEEP || BL_SWITCHER
depends on ARCH_SUSPEND_POSSIBLE
config ARCH_HIBERNATION_POSSIBLE
bool