cpuidle: big_little: Fix build error

big_little CPU idle driver references functions defined in MCPM driver.
Thus make it depend on MCPM to avoid the following errors:

drivers/built-in.o: In function `bl_enter_powerdown':
drivers/cpuidle/cpuidle-big_little.c:134: undefined reference to `mcpm_cpu_powered_up'
drivers/built-in.o: In function `bl_powerdown_finisher':
drivers/cpuidle/cpuidle-big_little.c:104: undefined reference to `mcpm_set_entry_vector'
drivers/cpuidle/cpuidle-big_little.c:111: undefined reference to `mcpm_cpu_suspend'
make: *** [vmlinux] Error 1

Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index b6d69e899f5d..a186dec8e5df 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -10,6 +10,7 @@ config ARM_ARMADA_370_XP_CPUIDLE
 config ARM_BIG_LITTLE_CPUIDLE
         bool "Support for ARM big.LITTLE processors"
         depends on ARCH_VEXPRESS_TC2_PM
+        depends on MCPM
         select ARM_CPU_SUSPEND
         select CPU_IDLE_MULTIPLE_DRIVERS
         help