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binding: Make "mdio-parent-bus" property from mandatory to optional
Change "mdio-parent-bus" from mandatory section to optional as it won't be required by integrated MDIO multiplexer which has bus selection and mdio transaction generation logic, integrated inside. Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -5,11 +5,12 @@ numbered uniquely in a device dependent manner. The nodes for an MDIO
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bus multiplexer/switch will have one child node for each child bus.
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bus multiplexer/switch will have one child node for each child bus.
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Required properties:
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Required properties:
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- mdio-parent-bus : phandle to the parent MDIO bus.
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- #address-cells = <1>;
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- #address-cells = <1>;
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- #size-cells = <0>;
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- #size-cells = <0>;
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Optional properties:
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Optional properties:
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- mdio-parent-bus : phandle to the parent MDIO bus.
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- Other properties specific to the multiplexer/switch hardware.
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- Other properties specific to the multiplexer/switch hardware.
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Required properties for child nodes:
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Required properties for child nodes:
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