linux-kernel - Re: [PATCH v2 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls.

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Message-ID: <CAKz_xw33YBChSCDHcki2JCR=LXrvfEN2pseEN471xVvqhqrUfA@mail.gmail.com>
Date:   Tue, 21 Apr 2020 11:08:57 +1000
From:   Evan Benn <evanbenn@...omium.org>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Julius Werner <jwerner@...omium.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Yonghui Yu <yonghui.yu@...ogic.com>,
        Leonard Crestez <leonard.crestez@....com>,
        Will Deacon <will@...nel.org>,
        Xingyu Chen <xingyu.chen@...ogic.com>,
        Rob Herring <robh@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Anson Huang <Anson.Huang@....com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Marcin Juszkiewicz <marcin.juszkiewicz@...aro.org>,
        Valentin Schneider <valentin.schneider@....com>,
        Guenter Roeck <linux@...ck-us.net>, devicetree@...r.kernel.org,
        LINUX-WATCHDOG <linux-watchdog@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>, Olof Johansson <olof@...om.net>,
        Shawn Guo <shawnguo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH v2 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls.

Thanks Florian,

> The PSCI binding itself has provision for specifying function IDs for
> different functions, and this seems to be followed by other subsystems
> as well like SCMI:
>
> https://www.spinics.net/lists/arm-kernel/msg791270.html

Are you referring to this line in the devicetree linked?

+- arm,smc-id : SMC id required when using smc or hvc transports

I cannot find any prior definition of this in the devicetree yaml
format, so I will add that as well.
Did you have a link for the psci usage that you referenced?

Thanks

Evan