net: dsa: mv88e6xxx: Implement interrupt support.
The switch can have up to two interrupt controllers. One of these contains the interrupts from the integrated PHYs, so is useful to export. The Marvell PHY driver can then be used in interrupt mode, rather than polling, speeding up PHY handling and reducing load on the MDIO bus. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller

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commit
dc30c35be7
@@ -20,16 +20,35 @@ Required properties:
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Optional properties:
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- reset-gpios : Should be a gpio specifier for a reset line
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- interrupt-parent : Parent interrupt controller
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- interrupts : Interrupt from the switch
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- interrupt-controller : Indicates the switch is itself an interrupt
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controller. This is used for the PHY interrupts.
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#interrupt-cells = <2> : Controller uses two cells, number and flag
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- mdio : container of PHY and devices on the switches MDIO
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bus
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Example:
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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interrupt-parent = <&gpio0>;
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interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
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interrupt-controller;
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#interrupt-cells = <2>;
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switch0: switch@0 {
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compatible = "marvell,mv88e6085";
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reg = <0>;
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reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
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};
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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switch1phy0: switch1phy0@0 {
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reg = <0>;
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interrupt-parent = <&switch0>;
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interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
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};
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};
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};
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