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Date:   Fri, 11 Sep 2020 21:48:53 +0800
From:   Landen Chao <landen.chao@...iatek.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>
CC:     <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <frank-w@...lic-files.de>,
        <opensource@...rst.com>, <dqfext@...il.com>,
        Landen Chao <landen.chao@...iatek.com>
Subject: [PATCH net-next v5 3/6] dt-bindings: net: dsa: add new MT7531 binding to support MT7531

Add devicetree binding to support the compatible mt7531 switch as used
in the MediaTek MT7531 switch.

Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Landen Chao <landen.chao@...iatek.com>
---
 .../devicetree/bindings/net/dsa/mt7530.txt          | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
index c5ed5d25f642..560369efad6c 100644
--- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt
+++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
@@ -5,6 +5,7 @@ Required properties:
 
 - compatible: may be compatible = "mediatek,mt7530"
 	or compatible = "mediatek,mt7621"
+	or compatible = "mediatek,mt7531"
 - #address-cells: Must be 1.
 - #size-cells: Must be 0.
 - mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
@@ -32,10 +33,14 @@ Required properties for the child nodes within ports container:
 
 - reg: Port address described must be 6 for CPU port and from 0 to 5 for
 	user ports.
-- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled
-	 "cpu".
-
-Port 5 of the switch is muxed between:
+- phy-mode: String, the following values are acceptable for port labeled
+	"cpu":
+	If compatible mediatek,mt7530 or mediatek,mt7621 is set,
+	must be either "trgmii" or "rgmii"
+	If compatible mediatek,mt7531 is set,
+	must be either "sgmii", "1000base-x" or "2500base-x"
+
+Port 5 of mt7530 and mt7621 switch is muxed between:
 1. GMAC5: GMAC5 can interface with another external MAC or PHY.
 2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC
    of the SOC. Used in many setups where port 0/4 becomes the WAN port.
-- 
2.17.1

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