dt-bindings: serial: Document serialN aliases
Document the format of aliases referring to UARTs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
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@ -15,6 +15,10 @@ description:
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device tree. Whether these properties apply to a particular device depends
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on the DT bindings for the actual device.
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Each enabled UART may have an optional "serialN" alias in the "aliases" node,
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where N is the port number (non-negative decimal integer) as printed on the
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label next to the physical port.
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properties:
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$nodename:
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pattern: "^serial(@.*)?$"
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