linux-kernel - Re: [PATCH v6 3/3] drivers: soc: xilinx: Add ZynqMP PM driver

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Message-ID: <20190201121445.GD10042@e107155-lin>
Date:   Fri, 1 Feb 2019 12:14:45 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     Jolly Shah <JOLLYS@...inx.com>
Cc:     "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "andy.gross@...aro.org" <andy.gross@...aro.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "geert+renesas@...der.be" <geert+renesas@...der.be>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "sean.wang@...iatek.com" <sean.wang@...iatek.com>,
        "m.szyprowski@...sung.com" <m.szyprowski@...sung.com>,
        Michal Simek <michals@...inx.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        Rajan Vaja <RAJANV@...inx.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 3/3] drivers: soc: xilinx: Add ZynqMP PM driver

On Thu, Jan 31, 2019 at 07:01:05PM +0000, Jolly Shah wrote:
> >
> > NACK, if this is for system suspend/reset ? You can just use exiting
> > sysfs, no need to create Xilinx specific new ones. Moreover you need to
> > use PSCI to make sure higher ELs can do orderly suspend/shutdown.
> >
>
> We have power off suspend mode which is not supported by existing sysfs and
> hence new one is needed. Suspend is handled through PSCI interface only.
>

I see only 2 cases supported SUSPEND_SYSTEM_SHUTDOWN and
SUSPEND_POWER_REQUEST. Both are already support so my NACK still stands.

--
Regards,
Sudeep