From: Michael Walle <michael@walle.cc>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>
Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Michael Walle <michael@walle.cc>
Subject: [PATCH net-next v1 1/3] dt-bindings: net: micrel: add coma-mode-gpios property
Date: Wed, 27 Apr 2022 23:44:04 +0200 [thread overview]
Message-ID: <20220427214406.1348872-2-michael@walle.cc> (raw)
In-Reply-To: <20220427214406.1348872-1-michael@walle.cc>
The LAN8814 has a coma mode pin which is used to put the PHY into
isolate and power-down mode. Usually strapped to be asserted by default.
A GPIO is then used to take the PHY out of this mode.
Signed-off-by: Michael Walle <michael@walle.cc>
---
Documentation/devicetree/bindings/net/micrel.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
index 8d157f0295a5..a9ed691ffb03 100644
--- a/Documentation/devicetree/bindings/net/micrel.txt
+++ b/Documentation/devicetree/bindings/net/micrel.txt
@@ -45,3 +45,12 @@ Optional properties:
In fiber mode, auto-negotiation is disabled and the PHY can only work in
100base-fx (full and half duplex) modes.
+
+ - coma-mode-gpios: If present the given gpio will be deasserted when the
+ PHY is probed.
+
+ Some PHYs have a COMA mode input pin which puts the PHY into
+ isolate and power-down mode. On some boards this input is connected
+ to a GPIO of the SoC.
+
+ Supported on the LAN8814.
--
2.30.2
next prev parent reply other threads:[~2022-04-27 21:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 21:44 [PATCH net-next v1 0/3] net: phy: micrel: add coma mode support Michael Walle
2022-04-27 21:44 ` Michael Walle [this message]
2022-04-29 22:24 ` [PATCH net-next v1 1/3] dt-bindings: net: micrel: add coma-mode-gpios property Rob Herring
2022-04-27 21:44 ` [PATCH net-next v1 2/3] net: phy: micrel: move the PHY timestamping check Michael Walle
2022-04-27 21:44 ` [PATCH net-next v1 3/3] net: phy: micrel: add coma mode GPIO Michael Walle
2022-04-27 22:06 ` Florian Fainelli
2022-04-27 22:08 ` Michael Walle
2022-04-27 22:12 ` Florian Fainelli
2022-04-27 22:17 ` Michael Walle
2022-04-27 22:23 ` Florian Fainelli
2022-04-30 0:30 ` [PATCH net-next v1 0/3] net: phy: micrel: add coma mode support patchwork-bot+netdevbpf
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