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