From: Arnd Bergmann <arnd@xxxxxxxx>
Some ARMv4 processors don't support suspend, which leads
to a build failure with the tegra and qualcomm cpuidle driver:
WARNING: unmet direct dependencies detected for ARM_CPU_SUSPEND
Depends on [n]: ARCH_SUSPEND_POSSIBLE [=n]
Selected by [y]:
- ARM_TEGRA_CPUIDLE [=y] && CPU_IDLE [=y] && (ARM [=y] || ARM64) && (ARCH_TEGRA [=n] || COMPILE_TEST [=y]) && !ARM64 && MMU [=y]
arch/arm/kernel/sleep.o: in function `__cpu_suspend':
(.text+0x68): undefined reference to `cpu_sa110_suspend_size'
(.text+0x68): undefined reference to `cpu_fa526_suspend_size'
Add an explicit dependency to make randconfig builds avoid
this combination.
Fixes: faae6c9f2e68 ("cpuidle: tegra: Enable compile testing")
Fixes: a871be6b8eee ("cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver")
Link: https://lore.kernel.org/all/20211013160125.772873-1-arnd@xxxxxxxxxx/
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Dmitry Osipenko <digetx@xxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
I found this in my backlog of patches that never made it upstream,
testing shows this is still needed. Please apply.
---
drivers/cpuidle/Kconfig.arm | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 747aa537389b..f0714a32921e 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -102,6 +102,7 @@ config ARM_MVEBU_V7_CPUIDLE
config ARM_TEGRA_CPUIDLE
bool "CPU Idle Driver for NVIDIA Tegra SoCs"
depends on (ARCH_TEGRA || COMPILE_TEST) && !ARM64 && MMU
+ depends on ARCH_SUSPEND_POSSIBLE
select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
select ARM_CPU_SUSPEND
help
@@ -110,6 +111,7 @@ config ARM_TEGRA_CPUIDLE
config ARM_QCOM_SPM_CPUIDLE
bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)"
depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU
+ depends on ARCH_SUSPEND_POSSIBLE
select ARM_CPU_SUSPEND
select CPU_IDLE_MULTIPLE_DRIVERS
select DT_IDLE_STATES
--
2.39.0
