adoc

device-tree.adoc

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+[[device-tree]]
+= Device tree
+
+`platform_device.c` together with its kernel and QEMU forks contains a
+minimal runnable example.
+
+Good format descriptions:
+
+* https://www.raspberrypi.org/documentation/configuration/device-tree.md
+
+Minimal example
+
+....
+/dts-v1/;
+
+/ {
+    a;
+};
+....
+
+Check correctness with:
+
+....
+dtc a.dts
+....
+
+Separate nodes are simply merged by node path, e.g.:
+
+....
+/dts-v1/;
+
+/ {
+    a;
+};
+
+/ {
+    b;
+};
+....
+
+then `dtc a.dts` gives:
+
+....
+/dts-v1/;
+
+/ {
+        a;
+        b;
+};
+....