platform_external_dtc/tests/multilabel_merge.dts
David Gibson f240527e54 Fix bug with references to root node
At present, the lexer token for references to a path doesn't permit a
reference to the root node &{/}.  Fixing the lexer exposes another bug
handling this case.

This patch fixes both bugs and adds testcases.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2014-05-09 20:48:49 +10:00

70 lines
1.3 KiB
Text

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