xref: /aosp_15_r20/external/dtc/tests/multilabel_merge.dts (revision cd60bc56d4bea3af4ec04523e4d71c2b272c8aff)

/dts-v1/;

m1: mq: /memreserve/ 0 0x1000;

/ {
	p0: pw: prop = "foo";

	/* Explicit phandles */
	n1: node1 {
		linux,phandle = <0x2000>;
		ref = <&{/node2}>; /* reference precedes target */
		p1: lref;
	};
	node2 {
		phandle = <0x1>;
		ref = <&{/node1}>; /* reference after target */
		lref = <&nx>;
	};

	/* Implicit phandles */
	n3: node3 {
		p3: ref = <&{/node4}>;
		lref = <&n4>;
	};
	n4: node4 {
		p4: prop = "foo";
	};

	/* Explicit phandle with implicit value */
	/* This self-reference is the standard way to tag a node as requiring
	 * a phandle (perhaps for reference by nodes that will be dynamically
	 * added) without explicitly allocating it a phandle.
	 * The self-reference requires some special internal handling, though
	 * so check it actually works */
	n5: nz: node5 {
		linux,phandle = <&n5>;
		phandle = <&nz>;
		n1 = &n1;
		n2 = &n2;
		n3 = &n3;
	};

	node6 {
		linux,phandle = <0xfffffffe>;
		phandle = <0xfffffffe>;
	};
};

/ {
	/* Append labels (also changes property content) */
	nx: node1 {
		px: lref = <&ny>;
	};

	/* Add multiple labels */
	ny: n2: node2 {
		/* Add a label to a property */
		p2: py: phandle = <0x1>;
	};

	/* Reassigning the same label should be a no-op */
	n3: node3 {
		p3: ref = <&{/node4}>;
	};

	/* Redefining a node/property should not remove labels */
	node4 {
		prop;
	};

};

/ {
	rref = <&{/}>;
};