linux-kernel - [net-next PATCH v6 04/16] dt-bindings: net: dsa: qca8k: Document support for CPU port 6

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Message-Id: <20211013011622.10537-5-ansuelsmth@gmail.com>
Date:   Wed, 13 Oct 2021 03:16:10 +0200
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Russell King <linux@...linux.org.uk>,
        John Crispin <john@...ozen.org>,
        Ansuel Smith <ansuelsmth@...il.com>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: [net-next PATCH v6 04/16] dt-bindings: net: dsa: qca8k: Document support for CPU port 6

The switch now support CPU port to be set 6 instead of be hardcoded to
0. Document support for it and describe logic selection.

Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
 Documentation/devicetree/bindings/net/dsa/qca8k.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
index cc214e655442..aeb206556f54 100644
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
@@ -29,7 +29,11 @@ the mdio MASTER is used as communication.
 Don't use mixed external and internal mdio-bus configurations, as this is
 not supported by the hardware.
 
-The CPU port of this switch is always port 0.
+This switch support 2 CPU port. Normally and advised configuration is with
+CPU port set to port 0. It is also possible to set the CPU port to port 6
+if the device requires it. The driver will configure the switch to the defined
+port. With both CPU port declared the first CPU port is selected as primary
+and the secondary CPU ignored.
 
 A CPU port node has the following optional node:
 
-- 
2.32.0