Rockchip RK356x and RK3588 handle legacy interrupts via a ganged
interrupts. The RK356x DT implements this via a sub-node named
"legacy-interrupt-controller", just like a couple of other PCIe
implementations. This adds proper documentation for this and updates
the example to avoid regressions.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230731165723.53069-5-sebastian.reichel@collabora.com
Signed-off-by: Rob Herring <robh@kernel.org>
- const: legacy
- const: err
+ legacy-interrupt-controller:
+ description: Interrupt controller node for handling legacy PCI interrupts.
+ type: object
+ additionalProperties: false
+ properties:
+ "#address-cells":
+ const: 0
+
+ "#interrupt-cells":
+ const: 1
+
+ interrupt-controller: true
+
+ interrupts:
+ items:
+ - description: combined legacy interrupt
+ required:
+ - "#address-cells"
+ - "#interrupt-cells"
+ - interrupt-controller
+ - interrupts
+
msi-map: true
num-lanes: true
reset-names = "pipe";
#address-cells = <3>;
#size-cells = <2>;
+
+ legacy-interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
+ };
};
};
...