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Message-ID: <9b504e3e88807bfb62022c0877451933d30abeb5.1680105013.git.daniel@makrotopia.org>
Date:   Wed, 29 Mar 2023 17:02:47 +0100
From:   Daniel Golle <daniel@...rotopia.org>
To:     devicetree@...r.kernel.org, netdev@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Sam Shih <Sam.Shih@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>
Subject: [RFC PATCH net-next v3 15/15] dt-bindings: net: dsa:
 mediatek,mt7530: add mediatek,mt7988-switch

Add documentation for the built-in switch which can be found in the
MediaTek MT7988 SoC.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 .../bindings/net/dsa/mediatek,mt7530.yaml     | 26 +++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
index 5ae9cd8f99a24..15953f0e9d1a6 100644
--- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
@@ -11,16 +11,23 @@ maintainers:
   - Landen Chao <Landen.Chao@...iatek.com>
   - DENG Qingfang <dqfext@...il.com>
   - Sean Wang <sean.wang@...iatek.com>
+  - Daniel Golle <daniel@...rotopia.org>
 
 description: |
-  There are two versions of MT7530, standalone and in a multi-chip module.
+  There are three versions of MT7530, standalone, in a multi-chip module and
+  built-into a SoC.
 
   MT7530 is a part of the multi-chip module in MT7620AN, MT7620DA, MT7620DAN,
   MT7620NN, MT7621AT, MT7621DAT, MT7621ST and MT7623AI SoCs.
 
+  The MT7988 SoC comes a built-in switch similar to MT7531 as well as 4 Gigabit
+  Ethernet PHYs and the switch registers are directly mapped into SoC's memory
+  map rather than using MDIO. It comes with an internally connected 10G CPU port
+  and 4 user ports connected to the built-in Gigabit Ethernet PHYs.
+
   MT7530 in MT7620AN, MT7620DA, MT7620DAN and MT7620NN SoCs has got 10/100 PHYs
   and the switch registers are directly mapped into SoC's memory map rather than
-  using MDIO. The DSA driver currently doesn't support this.
+  using MDIO. The DSA driver currently doesn't support MT7620 variants.
 
   There is only the standalone version of MT7531.
 
@@ -81,6 +88,10 @@ properties:
           Multi-chip module MT7530 in MT7621AT, MT7621DAT and MT7621ST SoCs
         const: mediatek,mt7621
 
+      - description:
+          Built-in switch of the MT7988 SoC
+        const: mediatek,mt7988-switch
+
   reg:
     maxItems: 1
 
@@ -268,6 +279,17 @@ allOf:
       required:
         - mediatek,mcm
 
+  - if:
+      properties:
+        compatible:
+          const: mediatek,mt7988-switch
+    then:
+      $ref: "#/$defs/mt7530-dsa-port"
+      properties:
+        gpio-controller: false
+        mediatek,mcm: false
+        reset-names: false
+
 unevaluatedProperties: false
 
 examples:
-- 
2.39.2

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