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Date:   Wed, 22 Jun 2022 14:03:41 +0300
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Marcin Wojtas <mw@semihalf.com>
Cc:     Andrew Lunn <andrew@lunn.ch>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        netdev <netdev@vger.kernel.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>, vivien.didelot@gmail.com,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>, pabeni@redhat.com,
        Russell King - ARM Linux <linux@armlinux.org.uk>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Grzegorz Bernacki <gjb@semihalf.com>,
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        Tomasz Nowicki <tn@semihalf.com>,
        Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>,
        upstream@semihalf.com
Subject: Re: [net-next: PATCH 09/12] Documentation: ACPI: DSD: introduce DSA
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On Wed, Jun 22, 2022 at 11:08:13AM +0200, Marcin Wojtas wrote:
> wt., 21 cze 2022 o 13:42 Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> napisał(a):

...

> It's not device on MDIO bus, but the MDIO controller's register itself
> (this _CSR belongs to the parent, subnodes do not refer to it in any
> way). The child device requires only _ADR (or whatever else is needed
> for the case the DSA device is attached to SPI/I2C controllers).

More and more the idea of standardizing the MDIOSerialBus() resource looks
plausible. The _ADR() usage is a bit grey area in ACPI specification. Maybe
someone can also make it descriptive, so Microsoft and others won't utilize
_ADR() in any level of weirdness.


-- 
With Best Regards,
Andy Shevchenko