The Exynos cpuidle driver has coupled cpuidle built-in so it cannot be
built without SMP:
arch/arm/mach-exynos/pm.c: In function ‘exynos_cpu0_enter_aftr’:
arch/arm/mach-exynos/pm.c:246:4: error: implicit declaration of function ‘arch_send_wakeup_ipi_mask’ [-Werror=implicit-function-declaration]
arch/arm/mach-exynos/built-in.o: In function `exynos_pre_enter_aftr':
../arch/arm/mach-exynos/pm.c:300: undefined reference to `cpu_boot_reg_base'
arch/arm/mach-exynos/built-in.o: In function `exynos_cpu1_powerdown':
../arch/arm/mach-exynos/pm.c:282: undefined reference to `exynos_cpu_power_down'
Make the cpuidle driver depending on SMP because this will be the
fastest way to fix build break without adding a bunch of ifdefs in few
places.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
arch/arm/mach-exynos/pm.c | 2 ++
drivers/cpuidle/Kconfig.arm | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index e6209dadc00d..17db00ff7f3a 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -181,6 +181,7 @@ void exynos_enter_aftr(void)
cpu_pm_exit();
}
+#ifdef CONFIG_ARM_EXYNOS_CPUIDLE
static atomic_t cpu1_wakeup = ATOMIC_INIT(0);
static int exynos_cpu0_enter_aftr(void)
@@ -302,3 +303,4 @@ struct cpuidle_exynos_data cpuidle_coupled_exynos_data = {
.pre_enter_aftr = exynos_pre_enter_aftr,
.post_enter_aftr = exynos_post_enter_aftr,
};
+#endif /* CONFIG_ARM_EXYNOS_CPUIDLE */
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 8e07c9419153..5eb86a4f74d9 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -55,7 +55,8 @@ config ARM_AT91_CPUIDLE
config ARM_EXYNOS_CPUIDLE
bool "Cpu Idle Driver for the Exynos processors"
depends on ARCH_EXYNOS
- select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
+ depends on SMP
+ select ARCH_NEEDS_CPU_IDLE_COUPLED
help
Select this to enable cpuidle for Exynos processors
--
1.9.1
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