设备树dra7_pmx_core 0x418 这个搞不懂参考哪里来的

节点如下： 红色部分前面是IO索引，后面的dra7_pmx_core 0x418不知道是啥

&i2c1 {
 status = "okay";
 clock-frequency = <400000>;

 tps659038: tps659038@58 {
  compatible = "ti,tps659038";
  reg = <0x58>;
  interrupts-extended = <&gpio6 16 IRQ_TYPE_LEVEL_HIGH
          &dra7_pmx_core 0x418>;
  #interrupt-cells = <2>;
  interrupt-controller;
  ti,system-power-controller;
  ti,palmas-override-powerhold;

yongqing wang：

配置复用功能