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dt-bindings: phy-rockchip-typec: move extcon property to be optional. 

The extcon property is used to detect the cable-state but some boards
just connect the type-c phy to a regular USB-A connector without any
power-delivery and thus no controller reporting the cable-state.
So the extcon property is not really a required property, move it to be
optional instead.

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>
This commit is contained in:
Enric Balletbo i Serra 2018-03-01 16:25:11 +01:00 committed by Kishon Vijay Abraham I
parent 866d4087f3
commit 21bf9bc2a9
1 changed files with 2 additions and 0 deletions
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Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
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@ -14,6 +14,8 @@ Required properties:
- resets : a list of phandle + reset specifier pairs
- reset-names : string reset name, must be:
"uphy", "uphy-pipe", "uphy-tcphy"
Optional properties:
- extcon : extcon specifier for the Power Delivery
Required nodes : a sub-node is required for each port the phy provides.