From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Michael Walle <michael@walle.cc>,
Catalin Marinas <catalin.marinas@arm.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: Re: [PATCH 0/2] arm64: remove generic ARM cpuidle support
Date: Mon, 30 May 2022 17:37:36 +0200 [thread overview]
Message-ID: <7037eef5-1af4-4a54-08a5-b078fe2540ce@linaro.org> (raw)
In-Reply-To: <20220529181329.2345722-1-michael@walle.cc>
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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next prev parent reply other threads:[~2022-05-30 15:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-29 18:13 [PATCH 0/2] arm64: remove generic ARM cpuidle support Michael Walle
2022-05-29 18:13 ` [PATCH 1/2] cpuidle: cpuidle-arm: remove arm64 support Michael Walle
2022-05-30 14:32 ` Sudeep Holla
2022-05-29 18:13 ` [PATCH 2/2] arm64: cpuidle: remove generic cpuidle support Michael Walle
2022-05-30 14:33 ` Sudeep Holla
2022-05-30 15:37 ` Daniel Lezcano [this message]
2022-06-22 11:59 ` [PATCH 0/2] arm64: remove generic ARM " Michael Walle
2022-06-22 14:07 ` Sudeep Holla
2022-06-23 13:19 ` Will Deacon
2022-06-23 19:31 ` Will Deacon
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