Kernel-4.18.0-80.el8_mediatek,sysirq

+Mediatek MT65xx/MT67xx/MT81xx sysirq

Mediatek SOCs sysirq support controllable irq inverter for each GIC SPI
interrupt.

Required properties:

  • compatible: should be
    “mediatek,mt8173-sysirq”, “mediatek,mt6577-sysirq”: for MT8173
    “mediatek,mt8135-sysirq”, “mediatek,mt6577-sysirq”: for MT8135
    “mediatek,mt8127-sysirq”, “mediatek,mt6577-sysirq”: for MT8127
    “mediatek,mt7622-sysirq”, “mediatek,mt6577-sysirq”: for MT7622
    “mediatek,mt6795-sysirq”, “mediatek,mt6577-sysirq”: for MT6795
    “mediatek,mt6797-sysirq”, “mediatek,mt6577-sysirq”: for MT6797
    “mediatek,mt6755-sysirq”, “mediatek,mt6577-sysirq”: for MT6755
    “mediatek,mt6592-sysirq”, “mediatek,mt6577-sysirq”: for MT6592
    “mediatek,mt6589-sysirq”, “mediatek,mt6577-sysirq”: for MT6589
    “mediatek,mt6582-sysirq”, “mediatek,mt6577-sysirq”: for MT6582
    “mediatek,mt6580-sysirq”, “mediatek,mt6577-sysirq”: for MT6580
    “mediatek,mt6577-sysirq”: for MT6577
    “mediatek,mt2712-sysirq”, “mediatek,mt6577-sysirq”: for MT2712
    “mediatek,mt2701-sysirq”, “mediatek,mt6577-sysirq”: for MT2701
  • interrupt-controller : Identifies the node as an interrupt controller
  • #interrupt-cells : Use the same format as specified by GIC in arm,gic.txt.
  • interrupt-parent: phandle of irq parent for sysirq. The parent must
    use the same interrupt-cells format as GIC.
  • reg: Physical base address of the intpol registers and length of memory
    mapped region. Could be multiple bases here. Ex: mt6797 needs 2 reg, others
    need 1.

Example:
sysirq: intpol-controller@10200620 {
compatible = “mediatek,mt6797-sysirq”,
“mediatek,mt6577-sysirq”;
interrupt-controller;
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
reg = <0 0x10220620 0 0x20>,
<0 0x10220690 0 0x10>;
};