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dt-bindings: phy-rockchip-inno-usb2: add documentation for extcon property
Commit98898f3bc8
("phy: rockchip-inno-usb2: support otg-port for rk3399") introduces the extcon property that is used to detect the cable-state. Document this property in the documentation binding. Fixes:98898f3bc8
("phy: rockchip-inno-usb2: support otg-port for rk3399") Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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@ -23,6 +23,8 @@ Optional properties:
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register files". When set driver will request its
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phandle as one companion-grf for some special SoCs
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(e.g RV1108).
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- extcon : phandle to the extcon device providing the cable state for
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the otg phy.
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Required nodes : a sub-node is required for each port the phy provides.
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The sub-node name is used to identify host or otg port,
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