linux-kernel - Re: [RFC PATCH 4/4] power: reset: Implement a PSCI SYSTEM

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Message-ID: <46744a2e-139c-4e4e-89b2-66346f64c3f2@quicinc.com>
Date:   Wed, 26 Jul 2023 16:11:08 +0530
From:   Pavan Kondeti <quic_pkondeti@...cinc.com>
To:     Elliot Berman <quic_eberman@...cinc.com>
CC:     Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Sebastian Reichel <sre@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <kernel@...cinc.com>,
        "Satya Durga Srinivasu Prabhala" <quic_satyap@...cinc.com>,
        Melody Olvera <quic_molvera@...cinc.com>,
        Prasad Sodagudi <quic_psodagud@...cinc.com>
Subject: Re: [RFC PATCH 4/4] power: reset: Implement a PSCI SYSTEM_RESET2
 reboot-mode driver

On Mon, Jul 24, 2023 at 03:30:54PM -0700, Elliot Berman wrote:
> PSCI implements a restart notifier for architectural defined resets.
> The SYSTEM_RESET2 allows vendor firmware to define additional reset
> types which could be mapped to the reboot reason.
> 
> Implement a driver to wire the reboot-mode framework to make vendor
> SYSTEM_RESET2 calls on reboot.
> 
> Signed-off-by: Elliot Berman <quic_eberman@...cinc.com>

Do we need to skip the PSCI call from the existing PSCI restart notifier
which gets called after your newly introduced callback from reboot mode
notifier?

Thanks,
Pavan