From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Reza Kurniawan <imkyufie@gmail.com>,
Mark Rutland <mark.rutland@arm.com>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Ulf Hansson <ulfh@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Christian Loehle <christian.loehle@arm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Abel Vesa <abelvesa@kernel.org>, Val Packett <val@packett.cool>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v2 3/4] arm64: dts: qcom: Skip suspend mode switch on MSM8917 and MSM8937
Date: Wed, 21 Oct 2026 12:35:00 +0200 [thread overview]
Message-ID: <26d4788b-fa4f-4f37-bd9d-ded731fb1e0a@oss.qualcomm.com> (raw)
In-Reply-To: <20261018-psci-fix-v2-3-35f65b59eb9a@gmail.com>
On 10/18/26 6:29 AM, Reza Kurniawan wrote:
> The PSCI firmware on Qualcomm MSM8917 and MSM8937 reports to support
> OS-initiated suspend mode but rejects call to PSCI_SET_SUSPEND_MODE with
> NOT_SUPPORTED. psci_set_osi_mode() then fails with -EOPNOTSUPP and
> probe of psci-cpuidle-domain is aborted:
>
> psci-cpuidle-domain psci: probe with driver psci-cpuidle-domain failed
> with error -95
>
> Skip the mode switch on these platforms and continue with the topology
> that was already built.
>
> This is expected to be safe since it matches the downstream kernel
> behavior, which manages the cluster power level in addition to the CPU
> power level, just like Linux does when OSI is supported.
>
> Signed-off-by: Reza Kurniawan <imkyufie@gmail.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-10-21 10:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-18 4:29 [PATCH v2 0/4] Fix PSCI " Reza Kurniawan
2026-10-18 4:29 ` [PATCH v2 1/4] dt-bindings: arm: psci: Add skip-suspend-mode-switch property Reza Kurniawan
2026-10-18 4:29 ` [PATCH v2 2/4] cpuidle: psci: Allow skipping the suspend mode switch Reza Kurniawan
2026-10-18 4:29 ` [PATCH v2 3/4] arm64: dts: qcom: Skip suspend mode switch on MSM8917 and MSM8937 Reza Kurniawan
2026-10-21 10:35 ` Konrad Dybcio [this message]
2026-10-18 4:29 ` [PATCH v2 4/4] arm64: dts: qcom: msm8917: Use a shallower cluster state to fix unresponsive idle Reza Kurniawan
2026-10-21 10:35 ` Konrad Dybcio
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