Sat, 30 May 2020 18:46:52 +0200

1 files changed, 84 insertions, 0 deletions

diff --git a/Adafruit.wiki b/Adafruit.wiki
new file mode 100644
index 0000000..f965ea1
--- /dev/null
+++ b/Adafruit.wiki
@@ -0,0 +1,84 @@
+https://archlinuxarm.org/forum/viewtopic.php?f=31&t=8144
+
+{{{conf
+/*
+ * Device Tree overlay for Adafruit 2.8" 320x240 TFT w/Cap Touch Screen for Raspberry Pi
+ * The touchscreen does not (yet) work
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+   compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+   fragment@0 {
+      target = <&spi0>;
+      __overlay__ {
+         status = "okay";
+
+         spidev@0{
+            status = "disabled";
+         };
+
+         spidev@1{
+            status = "disabled";
+         };
+      };
+   };
+
+   fragment@1 {
+      target = <&gpio>;
+      __overlay__ {
+         pitft_pins: pitft_pins {
+            brcm,pins = <25>;
+            brcm,function = <1>; /* out */
+         };
+      };
+   };
+
+   fragment@2 {
+      target = <&spi0>;
+      __overlay__ {
+         /* needed to avoid dtc warning */
+         #address-cells = <1>;
+         #size-cells = <0>;
+
+         pitft: pitft@0{
+            compatible = "ilitek,ili9341";
+            reg = <0>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&pitft_pins>;
+
+            spi-max-frequency = <32000000>;
+            rotate = <90>;
+            fps = <25>;
+            bgr;
+            buswidth = <8>;
+            dc-gpios = <&gpio 25 0>;
+            debug = <0>;
+         };
+
+      };
+   };
+
+   fragment@3 {
+      target-path = "/soc";
+      __overlay__ {
+         backlight {
+            compatible = "gpio-backlight";
+            gpios = <&gpio 18 0>;
+            default-on;
+         };
+      };
+   };
+
+   __overrides__ {
+      speed =   <&pitft>,"spi-max-frequency:0";
+      rotate =  <&pitft>,"rotate:0";
+      fps =     <&pitft>,"fps:0";
+      debug =   <&pitft>,"debug:0";
+   };
+};
+}}}