usb: misc: usb3503: Don't specify all DT properties as required
The binding document says that all properties are required but in fact almost all are optional (and should be) - update the document to reflect this. Signed-off-by: Mark Brown <broonie@linaro.org> Cc: devicetree@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3,6 +3,8 @@ SMSC USB3503 High-Speed Hub Controller
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Required properties:
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- compatible: Should be "smsc,usb3503" or "smsc,usb3503a".
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- reg: Specifies the i2c slave address, it should be 0x08.
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Optional properties:
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- connect-gpios: Should specify GPIO for connect.
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- disabled-ports: Should specify the ports unused.
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'1' or '2' or '3' are availe for this property to describe the port
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