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

Daniel Lezcano
2022-05-30T15:39:07Z

On 29/05/2022 20:13, Michael Walle wrote:
> 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(-)

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>

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