arch/arm/boot/dts/overlays/media-center-overlay.dts

   1 /*
   2  * Device Tree overlay for Media Center HAT by Pi Supply
   3  *
   4  */
   5
   6 /dts-v1/;
   7 /plugin/;
   8
   9 / {
  10         compatible = "brcm,bcm2835";
  11
  12         fragment@0 {
  13                 target = <&spidev0>;
  14                 __overlay__ {
  15                         status = "disabled";
  16                 };
  17         };
  18
  19         fragment@1 {
  20                 target = <&spidev1>;
  21                 __overlay__ {
  22                         status = "disabled";
  23                 };
  24         };
  25
  26         fragment@2 {
  27                 target = <&gpio>;
  28                 __overlay__ {
  29                         rpi_display_pins: rpi_display_pins {
  30                                 brcm,pins = <12 23 24 25>;
  31                                 brcm,function = <1 1 1 0>; /* out out out in */
  32                                 brcm,pull = <0 0 0 2>; /* - - - up */
  33                         };
  34                 };
  35         };
  36
  37         fragment@3 {
  38                 target = <&spi0>;
  39                 __overlay__ {
  40                         /* needed to avoid dtc warning */
  41                         #address-cells = <1>;
  42                         #size-cells = <0>;
  43                         status = "okay";
  44
  45                         rpidisplay: rpi-display@0{
  46                                 compatible = "ilitek,ili9341";
  47                                 reg = <0>;
  48                                 pinctrl-names = "default";
  49                                 pinctrl-0 = <&rpi_display_pins>;
  50
  51                                 spi-max-frequency = <32000000>;
  52                                 rotate = <90>;
  53                                 bgr;
  54                                 fps = <30>;
  55                                 buswidth = <8>;
  56                                 reset-gpios = <&gpio 23 1>;
  57                                 dc-gpios = <&gpio 24 0>;
  58                                 led-gpios = <&gpio 12 0>;
  59                                 debug = <0>;
  60                         };
  61
  62                         rpidisplay_ts: rpi-display-ts@1 {
  63                                 compatible = "ti,ads7846";
  64                                 reg = <1>;
  65
  66                                 spi-max-frequency = <2000000>;
  67                                 interrupts = <25 2>; /* high-to-low edge triggered */
  68                                 interrupt-parent = <&gpio>;
  69                                 pendown-gpio = <&gpio 25 1>;
  70                                 ti,x-plate-ohms = /bits/ 16 <60>;
  71                                 ti,pressure-max = /bits/ 16 <255>;
  72                         };
  73                 };
  74         };
  75
  76         fragment@4 {
  77                 target-path = "/";
  78                 __overlay__ {
  79                         lirc_rpi: lirc_rpi {
  80                                 compatible = "rpi,lirc-rpi";
  81                                 pinctrl-names = "default";
  82                                 pinctrl-0 = <&lirc_pins>;
  83                                 status = "okay";
  84
  85                                 // Override autodetection of IR receiver circuit
  86                                 // (0 = active high, 1 = active low, -1 = no override )
  87                                 rpi,sense = <0xffffffff>;
  88
  89                                 // Software carrier
  90                                 // (0 = off, 1 = on)
  91                                 rpi,softcarrier = <1>;
  92
  93                                 // Invert output
  94                                 // (0 = off, 1 = on)
  95                                 rpi,invert = <0>;
  96
  97                                 // Enable debugging messages
  98                                 // (0 = off, 1 = on)
  99                                 rpi,debug = <0>;
 100                         };
 101                 };
 102         };
 103
 104         fragment@5 {
 105                 target = <&gpio>;
 106                 __overlay__ {
 107                         lirc_pins: lirc_pins {
 108                                 brcm,pins = <6 5>;
 109                                 brcm,function = <1 0>; // out in
 110                                 brcm,pull = <0 1>; // off down
 111                         };
 112                 };
 113         };
 114
 115         __overrides__ {
 116                 speed =     <&rpidisplay>,"spi-max-frequency:0";
 117                 rotate =    <&rpidisplay>,"rotate:0";
 118                 fps =       <&rpidisplay>,"fps:0";
 119                 debug =     <&rpidisplay>,"debug:0",
 120                             <&lirc_rpi>,"rpi,debug:0";
 121                 xohms =     <&rpidisplay_ts>,"ti,x-plate-ohms;0";
 122                 swapxy =    <&rpidisplay_ts>,"ti,swap-xy?";
 123                 backlight = <&rpidisplay>,"led-gpios:4",
 124                             <&rpi_display_pins>,"brcm,pins:0";
 125
 126                 gpio_out_pin =  <&lirc_pins>,"brcm,pins:0";
 127                 gpio_in_pin =   <&lirc_pins>,"brcm,pins:4";
 128                 gpio_in_pull =  <&lirc_pins>,"brcm,pull:4";
 129
 130                 sense =         <&lirc_rpi>,"rpi,sense:0";
 131                 softcarrier =   <&lirc_rpi>,"rpi,softcarrier:0";
 132                 invert =        <&lirc_rpi>,"rpi,invert:0";
 133         };
 134 };