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dt-bindings: net: dsa: microchip: add mdio-parent-bus property for internal MDIO

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Introduce `mdio-parent-bus` property in the ksz DSA bindings to
reference the parent MDIO bus when the internal MDIO bus is attached to
it, bypassing the main management interface.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20241106075942.1636998-3-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Oleksij Rempel 2024-11-06 08:59:37 +01:00 committed by Jakub Kicinski
parent 7eb4c25714
commit 698b20a679
1 changed files with 9 additions and 0 deletions
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9
Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
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@ -84,6 +84,15 @@ properties:
mdio:
$ref: /schemas/net/mdio.yaml#
unevaluatedProperties: false
properties:
mdio-parent-bus:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle pointing to the MDIO bus controller connected to the
secondary MDIO interface. This property should be used when
the internal MDIO bus is accessed via a secondary MDIO
interface rather than the primary management interface.
patternProperties:
"^ethernet-phy@[0-9a-f]$":
type: object