arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 / {
   5         compatible = "brcm,bcm2835";
   6
   7         fragment@0 {
   8                 target = <&i2c_arm>;
   9                 __overlay__ {
  10                         #address-cells = <1>;
  11                         #size-cells = <0>;
  12                         status = "okay";
  13
  14                         sc16is750: sc16is750@48 {
  15                                 compatible = "nxp,sc16is750";
  16                                 reg = <0x48>; /* i2c address */
  17                                 clocks = <&sc16is750_clk>;
  18                                 interrupt-parent = <&gpio>;
  19                                 interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */
  20                                 gpio-controller;
  21                                 #gpio-cells = <2>;
  22                                 i2c-max-frequency = <400000>;
  23                         };
  24                 };
  25         };
  26
  27         fragment@1 {
  28                 target-path = "/";
  29                 __overlay__ {
  30                         sc16is750_clk: sc16is750_i2c_clk@48 {
  31                                 compatible = "fixed-clock";
  32                                 #clock-cells = <0>;
  33                                 clock-frequency = <14745600>;
  34                         };
  35                 };
  36         };
  37
  38         __overrides__ {
  39                 int_pin = <&sc16is750>,"interrupts:0";
  40                 addr = <&sc16is750>,"reg:0", <&sc16is750_clk>,"name";
  41                 xtal = <&sc16is750_clk>,"clock-frequency:0";
  42         };
  43 };