netdev - Re: [net-next PATCH v3 4/5] net: phy: Introduce fwnode_get_phy

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Message-ID: <CAHp75Vew8Fh6HEoOACk+J9KCpw+AE2t2+oFnXteK1eShopfYAA@mail.gmail.com>
Date:   Thu, 7 May 2020 20:27:44 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     Calvin Johnson <calvin.johnson@....nxp.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        linux.cj@...il.com, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Cristi Sovaiala <cristian.sovaiala@....com>,
        Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Madalin Bucur <madalin.bucur@....nxp.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Varun Sethi <V.Sethi@....com>,
        "Rajesh V . Bikkina" <rajesh.bikkina@....com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Diana Madalina Craciun <diana.craciun@....com>,
        netdev <netdev@...r.kernel.org>, Marcin Wojtas <mw@...ihalf.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Makarand Pawagi <makarand.pawagi@....com>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Pankaj Bansal <pankaj.bansal@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [net-next PATCH v3 4/5] net: phy: Introduce fwnode_get_phy_id()

On Thu, May 7, 2020 at 4:26 PM Jeremy Linton <jeremy.linton@....com> wrote:
> On 5/5/20 8:29 AM, Calvin Johnson wrote:

> > +             if (sscanf(cp, "ethernet-phy-id%4x.%4x",
> > +                        &upper, &lower) == 2) {
> > +                     *phy_id = ((upper & 0xFFFF) << 16) | (lower & 0xFFFF);
> > +                     return 0;
> > +             }

> Isn't the ACPI _CID() conceptually similar to the DT compatible
> property?

Where?

> It even appears to be getting used in a similar way to
> identify particular phy drivers in this case.

_CID() is a string. It can't be used as pure number.

-- 
With Best Regards,
Andy Shevchenko