ARM: vexpress: use ARM_CPU_SUSPEND if needed

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@arndb.de>
Fixes: 3592d7e002438 ("ARM: 8082/1: TC2: test the MCPM loopback during boot")
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index d6b16d9a78380e78ff7d33855f1c6caa557d2e83..3c2509b4b6946bfcfd9b4e7a325b3945ba6c244c 100644 (file)
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -73,6 +73,7 @@ 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.