From: Randy Dunlap <rdunlap@infradead.org>
To: Calvin Johnson <calvin.johnson@oss.nxp.com>,
Jeremy Linton <jeremy.linton@arm.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Jon <jon@solid-run.com>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Andrew Lunn <andrew@lunn.ch>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>
Cc: netdev@vger.kernel.org, linux-acpi@vger.kernel.org,
linux.cj@gmail.com, Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-kernel@vger.kernel.org
Subject: Re: [net-next PATCH v2 2/3] Documentation: ACPI: DSD: Document MDIO PHY
Date: Wed, 1 Jul 2020 06:16:19 -0700 [thread overview]
Message-ID: <7f7a4876-0c80-dc54-5653-b268c685caae@infradead.org> (raw)
In-Reply-To: <20200701061233.31120-3-calvin.johnson@oss.nxp.com>
On 6/30/20 11:12 PM, Calvin Johnson wrote:
> Introduce ACPI mechanism to get PHYs registered on a MDIO bus and
> provide them to be connected to MAC.
>
> An ACPI node property "mdio-handle" is introduced to reference the
> MDIO bus on which PHYs are registered with autoprobing method used
> by mdiobus_register().
>
> Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
> ---
>
> Changes in v2: None
>
> Documentation/firmware-guide/acpi/dsd/phy.rst | 40 +++++++++++++++++++
> 1 file changed, 40 insertions(+)
> create mode 100644 Documentation/firmware-guide/acpi/dsd/phy.rst
>
> diff --git a/Documentation/firmware-guide/acpi/dsd/phy.rst b/Documentation/firmware-guide/acpi/dsd/phy.rst
> new file mode 100644
> index 000000000000..78dcb0cacc7e
> --- /dev/null
> +++ b/Documentation/firmware-guide/acpi/dsd/phy.rst
> @@ -0,0 +1,40 @@
> +.. SPDX-License-Identifier: GPL-2.0
> +
> +=========================
> +MDIO bus and PHYs in ACPI
> +=========================
> +
> +The PHYs on a mdiobus are probed and registered using mdiobus_register().
on an mdiobus (?)
> +Later, for connecting these PHYs to MAC, the PHYs registered on the
> +mdiobus have to be referenced.
> +
> +For each MAC node, a property "mdio-handle" is used to reference the
> +MDIO bus on which the PHYs are registered. On getting hold of the MDIO
> +bus, use find_phy_device() to get the PHY connected to the MAC.
> +
> +
> +An example of this is show below::
shown
> +
> + Scope(\_SB.MCE0.PR17) // 1G
--
~Randy
next prev parent reply other threads:[~2020-07-01 13:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 6:12 [net-next PATCH v2 0/3] ACPI support for dpaa2 MAC driver Calvin Johnson
2020-07-01 6:12 ` [net-next PATCH v2 1/3] net: phy: introduce find_phy_device() Calvin Johnson
2020-07-01 10:23 ` Andy Shevchenko
2020-07-01 13:24 ` Andrew Lunn
2020-07-01 6:12 ` [net-next PATCH v2 2/3] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2020-07-01 10:27 ` Andy Shevchenko
2020-07-03 11:35 ` Calvin Johnson
2020-07-04 11:40 ` Andy Shevchenko
2020-07-01 13:16 ` Randy Dunlap [this message]
2020-07-01 13:30 ` Andrew Lunn
2020-07-01 6:12 ` [net-next PATCH v2 3/3] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
2020-07-01 10:37 ` Andy Shevchenko
2020-07-02 8:48 ` Ioana Ciornei
2020-07-02 9:34 ` Andy Shevchenko
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