Commit 7787943a authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Rafael J. Wysocki
Browse files

cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies 

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: faae6c9f ("cpuidle: tegra: Enable compile testing")
Fixes: a871be6b ("cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver")
Link: https://lore.kernel.org/all/20211013160125.772873-1-arnd@kernel.org/


Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 74528edf

drivers/cpuidle/Kconfig.arm

+2 −0
Original line number Diff line number Diff line
@@ -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