Linux-ACPI Archive on lore.kernel.org
 help / color / Atom feed
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
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


  parent reply index

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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7f7a4876-0c80-dc54-5653-b268c685caae@infradead.org \
    --to=rdunlap@infradead.org \
    --cc=andrew@lunn.ch \
    --cc=andy.shevchenko@gmail.com \
    --cc=calvin.johnson@oss.nxp.com \
    --cc=cristian.sovaiala@nxp.com \
    --cc=f.fainelli@gmail.com \
    --cc=ioana.ciornei@nxp.com \
    --cc=jeremy.linton@arm.com \
    --cc=jon@solid-run.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux.cj@gmail.com \
    --cc=linux@armlinux.org.uk \
    --cc=madalin.bucur@oss.nxp.com \
    --cc=netdev@vger.kernel.org \
    --cc=rjw@rjwysocki.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ACPI Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-acpi/0 linux-acpi/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-acpi linux-acpi/ https://lore.kernel.org/linux-acpi \
		linux-acpi@vger.kernel.org
	public-inbox-index linux-acpi

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-acpi


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git