LoongArch: Update dts for Loongson-2K2000 to support PCI-MSI

Current dts file for Loongson-2K2000 misses the interrupt-controller &
interrupt-cells descriptions in the msi-controller node, and misses the
msi-parent link in the pci root node. Add them to support PCI-MSI.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/boot/dts/loongson-2k2000.dtsi b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
index dcee9f3783fddacdbdb84a997f27f1e57671e00d..481c6c869a8b27d74fc16d32c3e25b8316dc8d3d 100644 (file)
--- a/arch/loongarch/boot/dts/loongson-2k2000.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
@@ -116,6 +116,8 @@
                msi: msi-controller@1fe01140 {
                        compatible = "loongson,pch-msi-1.0";
                        reg = <0x0 0x1fe01140 0x0 0x8>;
+                       interrupt-controller;
+                       #interrupt-cells = <1>;
                        msi-controller;
                        loongson,msi-base-vec = <64>;
                        loongson,msi-num-vecs = <192>;
@@ -147,6 +149,7 @@
                        #address-cells = <3>;
                        #size-cells = <2>;
                        device_type = "pci";
+                       msi-parent = <&msi>;
                        bus-range = <0x0 0xff>;
                        ranges = <0x01000000 0x0 0x00008000 0x0 0x18408000 0x0 0x00008000>,
                                 <0x02000000 0x0 0x60000000 0x0 0x60000000 0x0 0x20000000>;