arch/arm/boot/dts/overlays/vc4-kms-dpi.dtsi

   1 /*
   2  * vc4-kms-dpi.dtsi
   3  */
   4
   5 #include <dt-bindings/gpio/gpio.h>
   6 #include <dt-bindings/pinctrl/bcm2835.h>
   7
   8 / {
   9         fragment@100 {
  10                 target-path = "/";
  11                 __overlay__ {
  12                         panel: panel {
  13                                 rotation = <0>;
  14                                 port {
  15                                         panel_in: endpoint {
  16                                                 remote-endpoint = <&dpi_out>;
  17                                         };
  18                                 };
  19                         };
  20                 };
  21         };
  22
  23         fragment@101 {
  24                 target = <&dpi>;
  25                 dpi_node: __overlay__  {
  26                         status = "okay";
  27
  28                         pinctrl-names = "default";
  29
  30                         port {
  31                                 dpi_out: endpoint {
  32                                         remote-endpoint = <&panel_in>;
  33                                 };
  34                         };
  35                 };
  36         };
  37
  38         fragment@102 {
  39                 target = <&panel>;
  40                 __dormant__  {
  41                         backlight = <&backlight>;
  42                 };
  43         };
  44
  45         fragment@103 {
  46                 target-path = "/";
  47                 __dormant__  {
  48                         backlight: backlight {
  49                                 compatible = "gpio-backlight";
  50                                 gpios = <&gpio 255 GPIO_ACTIVE_HIGH>;
  51                         };
  52                 };
  53         };
  54
  55         fragment@104 {
  56                 target = <&panel>;
  57                 __dormant__  {
  58                         backlight = <&backlight_pwm>;
  59                 };
  60         };
  61
  62         fragment@105 {
  63                 target-path = "/";
  64                 __dormant__  {
  65                         backlight_pwm: backlight_pwm {
  66                                 compatible = "pwm-backlight";
  67                                 brightness-levels = <0 6 8 12 16 24 32 40 48 64 96 128 160 192 224 255>;
  68                                 default-brightness-level = <16>;
  69                                 pwms = <&pwm 0 200000>;
  70                         };
  71                 };
  72         };
  73
  74         fragment@106 {
  75                 target = <&pwm>;
  76                 __dormant__ {
  77                         pinctrl-names = "default";
  78                         pinctrl-0 = <&pwm_pins>;
  79                         assigned-clock-rates = <1000000>;
  80                         status = "okay";
  81                 };
  82         };
  83
  84         fragment@107 {
  85                 target = <&gpio>;
  86                 __dormant__ {
  87                         pwm_pins: pwm_pins {
  88                                 brcm,pins = <18>;
  89                                 brcm,function = <2>; /* Alt5 */
  90                         };
  91                 };
  92         };
  93
  94         fragment@108 {
  95                 target = <&audio>;
  96                 __dormant__  {
  97                     brcm,disable-headphones;
  98                 };
  99         };
 100
 101         __overrides__ {
 102                 backlight-gpio = <0>, "+102+103",
 103                         <&backlight>, "gpios:4";
 104                 backlight-pwm = <0>, "+104+105+106+107+108";
 105                 backlight-pwm-chan = <&backlight_pwm>, "pwms:4";
 106                 backlight-pwm-gpio = <&pwm_pins>, "brcm,pins:0";
 107                 backlight-pwm-func = <&pwm_pins>, "brcm,function:0";
 108                 backlight-def-brightness = <&backlight_pwm>, "default-brightness-level:0";
 109                 rotate = <&panel>, "rotation:0";
 110         };
 111 };