linux-kernel - [PATCH 1/2] dt-bindings: net: dp83822: Add line driver class selection

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Message-Id: <20230710175621.8612-2-vesa.jaaskelainen@vaisala.com>
Date:   Mon, 10 Jul 2023 20:56:19 +0300
From:   Vesa Jääskeläinen 
        <vesa.jaaskelainen@...sala.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     vesa.jaaskelainen@...sala.com,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Andrew Davis <afd@...com>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: net: dp83822: Add line driver class selection

Add support to specify either class A or class B (default) for line driver.

Class A: full MLT-3 on both Tx+ and Tx–
Class B: reduced MLT-3

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@...sala.com>
---
 Documentation/devicetree/bindings/net/ti,dp83822.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
index db74474207ed..62943a1e8941 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -27,6 +27,14 @@ properties:
   reg:
     maxItems: 1
 
+  ti,line-driver-class-a:
+    type: boolean
+    description: |
+       DP83822 PHY's line driver selection to class A.
+       Sets the DP83822 line driver as class A i.e. program full MLT-3 on both
+       Tx+ and Tx-.
+       If not defined class B will be configured (default) i.e. reduced MLT-3.
+
   ti,link-loss-low:
     type: boolean
     description: |
-- 
2.34.1