netdev - [PATCH net-next v4 2/4] dt-bindings: net: Add Rx/Tx output configuration for 10base T1L

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Message-ID: <20201117201555.26723-3-dmurphy@ti.com>
Date:   Tue, 17 Nov 2020 14:15:53 -0600
From:   Dan Murphy <dmurphy@...com>
To:     <davem@...emloft.net>, <andrew@...n.ch>, <f.fainelli@...il.com>,
        <hkallweit1@...il.com>, <robh@...nel.org>, <ciorneiioana@...il.com>
CC:     <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [PATCH net-next v4 2/4] dt-bindings: net: Add Rx/Tx output configuration for 10base T1L

Per the 802.3cg spec the 10base T1L can operate at 2 different
differential voltages 1v p2p and 2.4v p2p. The abiility of the PHY to
drive that output is dependent on the PHY's on board power supply.
This common feature is applicable to all 10base T1L PHYs so this binding
property belongs in a top level ethernet document.

Signed-off-by: Dan Murphy <dmurphy@...com>
---
 Documentation/devicetree/bindings/net/ethernet-phy.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 6dd72faebd89..bda1ce51836b 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -174,6 +174,12 @@ properties:
       PHY's that have configurable TX internal delays. If this property is
       present then the PHY applies the TX delay.
 
+  max-tx-rx-p2p-microvolt:
+    description: |
+      Configures the Tx/Rx p2p differential output voltage for 10base-T1L PHYs.
+    enum: [ 1100, 2400 ]
+    default: 2400
+
 required:
   - reg
 
-- 
2.29.2