From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Grant Likely <grant.likely@arm.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
Ioana Ciornei <ciorneiioana@gmail.com>,
Jeremy Linton <jeremy.linton@arm.com>,
Andrew Lunn <andrew@lunn.ch>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Marcin Wojtas <mw@semihalf.com>,
Pieter Jansen Van Vuuren <pieter.jansenvv@bamboosystems.io>,
Jon <jon@solid-run.com>, Saravana Kannan <saravanak@google.com>,
Randy Dunlap <rdunlap@infradead.org>,
calvin.johnson@nxp.com,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@nxp.com>,
Madalin Bucur <madalin.bucur@nxp.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Diana Madalina Craciun <diana.craciun@nxp.com>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux.cj" <linux.cj@gmail.com>, netdev <netdev@vger.kernel.org>,
Laurentiu Tudor <laurentiu.tudor@nxp.com>,
Len Brown <lenb@kernel.org>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Calvin Johnson <calvin.johnson@oss.nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>, "nd@arm.com" <nd@arm.com>
Subject: Re: [PATCH net-next v8 01/15] Documentation: ACPI: DSD: Document MDIO PHY
Date: Thu, 10 Jun 2021 20:31:38 +0200 [thread overview]
Message-ID: <CAJZ5v0g-NNJv=NBHxuUi6C0eJwOaZeU1nswEAuEaLciVD9wmFg@mail.gmail.com> (raw)
In-Reply-To: <070d33be-8056-d54c-05c1-a13432b3167e@arm.com>
On Thu, Jun 10, 2021 at 8:23 PM Grant Likely <grant.likely@arm.com> wrote:
>
> On 10/06/2021 19:05, Rafael J. Wysocki wrote:
> > On Thu, Jun 10, 2021 at 6:40 PM Ioana Ciornei <ciorneiioana@gmail.com> wrote:
> >>
> >> From: Calvin Johnson <calvin.johnson@oss.nxp.com>
> >>
> >> Introduce ACPI mechanism to get PHYs registered on a MDIO bus and
> >> provide them to be connected to MAC.
> >
> > This is not an "ACPI mechanism", because it is not part of the ACPI
> > specification or support documentation thereof.
> >
> > I would call it "a mechanism based on generic ACPI _DSD device
> > properties definition []1]". And provide a reference to the _DSD
> > properties definition document.
> >
> > With that changed, you can add
> >
> > Acked-by: Rafael J. Wysocki <rafael@kernel.org>
> >
> > to this patch.
> >
> > Note, however, that within the traditional ACPI framework, the _DSD
> > properties are consumed by the driver that binds to the device
> > represented by the ACPI device object containing the _DSD in question
> > in its scope, while in this case IIUC the properties are expected to
> > be consumed by the general networking code in the kernel. That is not
> > wrong in principle, but it means that operating systems other than
> > Linux are not likely to be using them.
> >
>
> Doesn't this land at the level of device drivers though? None of this
> data needs to be consumed by the OS generic ACPI parsing code, but the
> network device driver can use it to parse the MDIO and MAC configuraiton
> and set itself up appropriately.
That's right in general, which is why I said that doing it this way
wasn't wrong.
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next prev parent reply other threads:[~2021-06-10 18:33 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 16:39 [PATCH net-next v8 00/15] ACPI support for dpaa2 driver Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 01/15] Documentation: ACPI: DSD: Document MDIO PHY Ioana Ciornei
2021-06-10 18:05 ` Rafael J. Wysocki
2021-06-10 18:23 ` Grant Likely
2021-06-10 18:31 ` Rafael J. Wysocki [this message]
2021-06-10 18:11 ` Grant Likely
2021-06-10 16:39 ` [PATCH net-next v8 02/15] net: phy: Introduce fwnode_mdio_find_device() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 03/15] net: phy: Introduce phy related fwnode functions Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 04/15] of: mdio: Refactor of_phy_find_device() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 05/15] net: phy: Introduce fwnode_get_phy_id() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 06/15] of: mdio: Refactor of_get_phy_id() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 07/15] net: mii_timestamper: check NULL in unregister_mii_timestamper() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 08/15] net: mdiobus: Introduce fwnode_mdiobus_register_phy() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 09/15] of: mdio: Refactor of_mdiobus_register_phy() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 10/15] ACPI: utils: Introduce acpi_get_local_address() Ioana Ciornei
2021-06-10 18:09 ` Rafael J. Wysocki
2021-06-10 16:39 ` [PATCH net-next v8 11/15] net: mdio: Add ACPI support code for mdio Ioana Ciornei
2021-06-10 18:19 ` Rafael J. Wysocki
2021-06-10 16:39 ` [PATCH net-next v8 12/15] net/fsl: Use [acpi|of]_mdiobus_register Ioana Ciornei
2021-06-11 8:57 ` Andy Shevchenko
2021-06-10 16:39 ` [PATCH net-next v8 13/15] net: phylink: introduce phylink_fwnode_phy_connect() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 14/15] net: phylink: Refactor phylink_of_phy_connect() Ioana Ciornei
2021-06-10 16:39 ` [PATCH net-next v8 15/15] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Ioana Ciornei
2021-06-10 18:23 ` Rafael J. Wysocki
2021-06-10 16:56 ` [PATCH net-next v8 00/15] ACPI support for dpaa2 driver Andrew Lunn
2021-06-10 17:51 ` Jon Nettleton
2021-06-10 18:25 ` Rafael J. Wysocki
2021-06-10 18:27 ` Grant Likely
2021-06-10 18:40 ` Andrew Lunn
2021-06-10 18:19 ` Grant Likely
2021-06-11 9:00 ` Andy Shevchenko
2021-06-11 9:17 ` Ioana Ciornei
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