Re: [PATCH v2 2/9] irqchip: irq-qcom-mpm: Register MPM with cpu_pm for RPM notification
From: Konrad Dybcio
Date: Mon Oct 19 2026 - 07:15:57 EST
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