linux-kernel - [PATCH 2/4] dt-bindings: phy-rockchip-inno-usb2: add documentation for extcon and utmi-avalid properties.

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Message-Id: <20180815095934.11205-3-enric.balletbo@collabora.com>
Date:   Wed, 15 Aug 2018 11:59:32 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     amstan@...omium.org, groeck@...gle.com,
        kieran.bingham@...asonboard.com, kernel@...labora.com,
        bleung@...omium.org, heiko@...ech.de, devicetree@...r.kernel.org,
        Frank Wang <frank.wang@...k-chips.com>,
        linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/4] dt-bindings: phy-rockchip-inno-usb2: add documentation for extcon and utmi-avalid properties.

Commit 98898f3bc83c8 ("phy: rockchip-inno-usb2: support otg-port for
rk3399") introduces two new properties. The extcon property is used to
detect the cable-state, and the rockchip,utmi-avalid is used to indicate
which register should be used to detect the vbus state.

Document these properties in the documentation binding.

Fixes: 98898f3bc83c8 ("phy: rockchip-inno-usb2: support otg-port for rk3399")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
---

 .../devicetree/bindings/phy/phy-rockchip-inno-usb2.txt         | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
index 074a7b3b0425..2d4808d3920b 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -23,6 +23,7 @@ Optional properties:
 		 register files". When set driver will request its
 		 phandle as one companion-grf for some special SoCs
 		 (e.g RV1108).
+ - extcon : phandle to the extcon device for the otg phy.
 
 Required nodes : a sub-node is required for each port the phy provides.
 		 The sub-node name is used to identify host or otg port,
@@ -45,6 +46,8 @@ Required properties (port (child) node):
 Optional properties:
  - phy-supply : phandle to a regulator that provides power to VBUS.
 		See ./phy-bindings.txt for details.
+ - rockchip,utmi-avalid : boolean, use the avalid register to get vbus status.
+			  Otherwise, use the bvalid register.
 
 Example:
 
-- 
2.18.0