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-rw-r--r--Documentation/devicetree/bindings/graph.txt13
1 files changed, 6 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/graph.txt b/Documentation/devicetree/bindings/graph.txt
index fcb1c6a4787b..0415e2c53ba0 100644
--- a/Documentation/devicetree/bindings/graph.txt
+++ b/Documentation/devicetree/bindings/graph.txt
@@ -34,7 +34,7 @@ remote device, an 'endpoint' child node must be provided for each link.
34If more than one port is present in a device node or there is more than one 34If more than one port is present in a device node or there is more than one
35endpoint at a port, or a port node needs to be associated with a selected 35endpoint at a port, or a port node needs to be associated with a selected
36hardware interface, a common scheme using '#address-cells', '#size-cells' 36hardware interface, a common scheme using '#address-cells', '#size-cells'
37and 'reg' properties is used number the nodes. 37and 'reg' properties is used to number the nodes.
38 38
39device { 39device {
40 ... 40 ...
@@ -89,9 +89,9 @@ Links between endpoints
89 89
90Each endpoint should contain a 'remote-endpoint' phandle property that points 90Each endpoint should contain a 'remote-endpoint' phandle property that points
91to the corresponding endpoint in the port of the remote device. In turn, the 91to the corresponding endpoint in the port of the remote device. In turn, the
92remote endpoint should contain a 'remote-endpoint' property. If it has one, 92remote endpoint should contain a 'remote-endpoint' property. If it has one, it
93it must not point to another than the local endpoint. Two endpoints with their 93must not point to anything other than the local endpoint. Two endpoints with
94'remote-endpoint' phandles pointing at each other form a link between the 94their 'remote-endpoint' phandles pointing at each other form a link between the
95containing ports. 95containing ports.
96 96
97device-1 { 97device-1 {
@@ -110,13 +110,12 @@ device-2 {
110 }; 110 };
111}; 111};
112 112
113
114Required properties 113Required properties
115------------------- 114-------------------
116 115
117If there is more than one 'port' or more than one 'endpoint' node or 'reg' 116If there is more than one 'port' or more than one 'endpoint' node or 'reg'
118property is present in port and/or endpoint nodes the following properties 117property present in the port and/or endpoint nodes then the following
119are required in a relevant parent node: 118properties are required in a relevant parent node:
120 119
121 - #address-cells : number of cells required to define port/endpoint 120 - #address-cells : number of cells required to define port/endpoint
122 identifier, should be 1. 121 identifier, should be 1.