linux-kernel - [PATCH net-next v3 2/4] dt-bindings: net: dp83822: add constraints for mac-termination-ohms

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Message-Id: <20250416-dp83822-mac-impedance-v3-2-028ac426cddb@liebherr.com>
Date: Wed, 16 Apr 2025 19:14:48 +0200
From: Dimitri Fedrau via B4 Relay <devnull+dimitri.fedrau.liebherr.com@...nel.org>
To: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Florian Fainelli <f.fainelli@...il.com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, Andrew Davis <afd@...com>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Dimitri Fedrau <dimitri.fedrau@...bherr.com>, 
 Dimitri Fedrau <dima.fedrau@...il.com>
Subject: [PATCH net-next v3 2/4] dt-bindings: net: dp83822: add constraints
 for mac-termination-ohms

From: Dimitri Fedrau <dimitri.fedrau@...bherr.com>

Property mac-termination-ohms is defined in ethernet-phy.yaml. Add allowed
values for the property.

Signed-off-by: Dimitri Fedrau <dimitri.fedrau@...bherr.com>
---
 Documentation/devicetree/bindings/net/ti,dp83822.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
index 50c24248df266f1950371b950cd9c4d417835f97..28a0bddb9af940e79a7a768a35ef588e28ec5bd4 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -122,6 +122,9 @@ properties:
       - free-running
       - recovered

+  mac-termination-ohms:
+    enum: [43, 44, 46, 48, 50, 53, 55, 58, 61, 65, 69, 73, 78, 84, 91, 99]
+
 required:
   - reg

@@ -137,6 +140,7 @@ examples:
         rx-internal-delay-ps = <1>;
         tx-internal-delay-ps = <1>;
         ti,gpio2-clk-out = "xi";
+        mac-termination-ohms = <43>;
       };
     };

-- 
2.39.5