linux-kernel - [PATCH 1/2] dt-bindings: phy-mtk-tphy: add the property about force

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Message-ID: <1587100986-3104-1-git-send-email-macpaul.lin@mediatek.com>
Date:   Fri, 17 Apr 2020 13:23:05 +0800
From:   Macpaul Lin <macpaul.lin@...iatek.com>
To:     Min Guo <min.Guo@...iatek.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
CC:     Mediatek WSD Upstream <wsd_upstream@...iatek.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Macpaul Lin <macpaul.lin@...il.com>
Subject: [PATCH 1/2] dt-bindings: phy-mtk-tphy: add the property about force_vbus

For some platforms, they don't have vbus pin connection between usb's phy
and mac. Hence we need to control force_vbus related registers to keep
hardware works normal.
This patch add the required bool property force_vbus.

Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
---
 Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
index dd75b676b71d..6b49b651becc 100644
--- a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
+++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
@@ -37,6 +37,9 @@ Optional properties (controller (parent) node):
 		  calibrate
  - mediatek,src-coef	: coefficient for slew rate calibrate, depends on
 		  SoC process
+ - force_vbus	: if the platform has no vbus connection between phy and mac,
+		  (force_vbus mode), then this property should be exist.
+		  Otherwise not to add this property.
 
 Required properties (port (child) node):
 - reg		: address and length of the register set for the port.
-- 
2.18.0