From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Sneh Mankad <sneh.mankad@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Thomas Gleixner <tglx@kernel.org>,
Shawn Guo <shawn.guo@linaro.org>, Marc Zyngier <maz@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
Frederic Weisbecker <frederic@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/9] irqchip: irq-qcom-mpm: Register MPM with cpu_pm for RPM notification
Date: Mon, 19 Oct 2026 13:10:31 +0200 [thread overview]
Message-ID: <be076bf7-52fa-4c93-9d0f-46a8d06ae920@oss.qualcomm.com> (raw)
In-Reply-To: <20261015-b4-shikra_lpm_addition-v2-2-ac7f1a0d5638@oss.qualcomm.com>
On 10/15/26 11:55 AM, Sneh Mankad wrote:
> MPM irqchip needs to notify RPM (Resource Power Manager) processor to read
> the latest wake up capable interrupts when the CPU cluster is entering the
> deepest idle state. This is done by sending IPC interrupt to RPM and is
> implemented as .power_off() callback by registering MPM as parent power
> domain to CPU cluster.
GPT suggests to register the notifier later, so that if
mbox_request_channel() probedefers we get a clean unwinding.
It also suggests to skip pm_genpd_remove() in the non-legacy
case, but the API tolerates nullptrs (although it does return
-EINVAL, but we ignore the value)
Konrad
next prev parent reply other threads:[~2026-10-19 11:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 9:55 [PATCH v2 0/9] Add fallback method to handle RPM notification in MPM driver Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 1/9] arm64: dts: qcom: shikra: Add CPU idle states Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 2/9] irqchip: irq-qcom-mpm: Register MPM with cpu_pm for RPM notification Sneh Mankad
2026-10-19 11:10 ` Konrad Dybcio [this message]
2026-10-19 11:24 ` Konrad Dybcio
2026-10-15 9:55 ` [PATCH v2 3/9] arm64: delay: Move USECS_TO_CYCLES() to generic header Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 4/9] irqchip/irq-qcom-mpm: Prepare common access path for timer and pin regs Sneh Mankad
2026-10-19 11:19 ` Konrad Dybcio
2026-10-15 9:55 ` [PATCH v2 5/9] irqchip/irq-qcom-mpm: Program wakeup timer when CPU cluster goes to LPM Sneh Mankad
2026-10-19 11:56 ` Konrad Dybcio
2026-10-15 9:55 ` [PATCH v2 6/9] arm64: dts: qcom: sm6375: Do not mark MPM as a power domain provider Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 7/9] arm64: dts: qcom: agatti: Do not mark MPM as " Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 8/9] arm64: dts: qcom: qrb2210-rb1: Enable CPU cluster low power mode Sneh Mankad
2026-10-15 9:55 ` [PATCH v2 9/9] arm64: dts: qcom: shikra: Do not mark MPM as power domain provider Sneh Mankad
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