[PATCH 0/2] arm64: remove generic ARM cpuidle support

Michael Walle
2022-05-29T18:15:16Z

Playing with an own PSCI implementation, I've noticed that the cpuidle-arm
driver doesn't work on arm64. It doesn't probe because since commit
788961462f34 ("ARM: psci: cpuidle: Enable PSCI CPUidle driver") the
arm_cpuidle_init() can only return -EOPNOTSUPP, because the commit removed
the cpu_idle_init and cpu_suspend ops.

It left me puzzled for quite some time. It seems that the cpuidle-psci is
the preferred one and this has been the case for quite some time. The
mentioned commit first appeared in v5.4.

Remove the ARM64 support for the cpuidle-arm driver, which then let us
remove all the supporting arch code.

Michael Walle (2):
cpuidle: cpuidle-arm: remove arm64 support
arm64: cpuidle: remove generic cpuidle support

arch/arm64/include/asm/cpu_ops.h | 9 ---------
arch/arm64/include/asm/cpuidle.h | 15 ---------------
arch/arm64/kernel/cpuidle.c | 29 -----------------------------
drivers/cpuidle/Kconfig.arm | 3 ++-
4 files changed, 2 insertions(+), 54 deletions(-)

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2.30.2