arch/arm/boot/dts/overlays/cutiepi-panel-overlay.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 / {
   5     compatible = "brcm,bcm2711";
   6
   7     fragment@0 {
   8         target=<&dsi1>;
   9
  10         __overlay__ {
  11             status = "okay";
  12
  13             #address-cells = <1>;
  14             #size-cells = <0>;
  15
  16             port {
  17                 dsi1_out_port: endpoint {
  18                     remote-endpoint = <&panel_dsi_in1>;
  19                 };
  20             };
  21
  22             display1: panel@0 {
  23                 compatible = "nwe,nwe080";
  24                 reg=<0>;
  25                 backlight = <&rpi_backlight>;
  26                 reset-gpios = <&gpio 20 0>;
  27                 port {
  28                     panel_dsi_in1: endpoint {
  29                         remote-endpoint = <&dsi1_out_port>;
  30                     };
  31                 };
  32             };
  33         };
  34     };
  35
  36     fragment@1 {
  37         target = <&gpio>;
  38         __overlay__ {
  39             pwm_pins: pwm_pins {
  40                 brcm,pins = <12>;
  41                 brcm,function = <4>; // ALT0
  42             };
  43         };
  44     };
  45
  46     fragment@2 {
  47         target = <&pwm>;
  48         frag1: __overlay__ {
  49             pinctrl-names = "default";
  50             pinctrl-0 = <&pwm_pins>;
  51             assigned-clock-rates = <1000000>;
  52             status = "okay";
  53         };
  54     };
  55
  56     fragment@3 {
  57         target-path = "/";
  58         __overlay__ {
  59             rpi_backlight: rpi_backlight {
  60                 compatible = "pwm-backlight";
  61                 brightness-levels = <0 6 8 12 16 24 32 40 48 64 96 128 160 192 224 255>;
  62                 default-brightness-level = <6>;
  63                 pwms = <&pwm 0 200000>;
  64                 power-supply = <&vdd_3v3_reg>;
  65                 status = "okay";
  66             };
  67         };
  68     };
  69
  70     fragment@4 {
  71         target = <&i2c6>;
  72         frag0: __overlay__ {
  73             status = "okay";
  74             pinctrl-names = "default";
  75             pinctrl-0 = <&i2c6_pins>;
  76             clock-frequency = <100000>;
  77         };
  78     };
  79
  80     fragment@5 {
  81         target = <&i2c6_pins>;
  82         __overlay__ {
  83             brcm,pins = <22 23>;
  84         };
  85     };
  86
  87     fragment@6 {
  88             target = <&gpio>;
  89             __overlay__ {
  90                 goodix_pins: goodix_pins {
  91                     brcm,pins = <21 26>; // interrupt and reset
  92                     brcm,function = <0 0>; // in
  93                     brcm,pull = <2 2>; // pull-up
  94                 };
  95             };
  96     };
  97
  98     fragment@7 {
  99         target = <&i2c6>;
 100         __overlay__ {
 101             #address-cells = <1>;
 102             #size-cells = <0>;
 103             status = "okay";
 104
 105             gt9xx: gt9xx@5d {
 106                 compatible = "goodix,gt9271";
 107                 reg = <0x5D>;
 108                 pinctrl-names = "default";
 109                 pinctrl-0 = <&goodix_pins>;
 110                 interrupt-parent = <&gpio>;
 111                 interrupts = <21 2>; // high-to-low edge triggered
 112                 irq-gpios = <&gpio 21 0>;
 113                 reset-gpios = <&gpio 26 0>;
 114             };
 115         };
 116     };
 117 };