3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
commit 95fcedb027a27f32bf2434f9271635c380e57fb5 upstream.
The vexpress tc2 power management code calls mcpm_loopback, which
is only available if ARM_CPU_SUSPEND is enabled, otherwise we
get a link error:
arch/arm/mach-vexpress/built-in.o: In function `tc2_pm_init':
arch/arm/mach-vexpress/tc2_pm.c:389: undefined reference to `mcpm_loopback'
This explicitly selects ARM_CPU_SUSPEND like other platforms that
need it.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 3592d7e002438 ("ARM: 8082/1: TC2: test the MCPM loopback during boot")
Acked-by: Nicolas Pitre <nico@xxxxxxxxxx>
Acked-by: Liviu Dudau <liviu.dudau@xxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxx>
Cc: Sudeep Holla <sudeep.holla@xxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-vexpress/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -75,6 +75,7 @@ config ARCH_VEXPRESS_TC2_PM
depends on MCPM
select ARM_CCI
select ARCH_VEXPRESS_SPC
+ select ARM_CPU_SUSPEND
help
Support for CPU and cluster power management on Versatile Express
with a TC2 (A15x2 A7x3) big.LITTLE core tile.
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