linux-kernel - [RFC PATCH net-next 3/4] dt-bindings: net: Add RGMII internal delay for DP83869

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Message-ID: <20200521174834.3234-4-dmurphy@ti.com>
Date:   Thu, 21 May 2020 12:48:33 -0500
From:   Dan Murphy <dmurphy@...com>
To:     <andrew@...n.ch>, <f.fainelli@...il.com>, <hkallweit1@...il.com>,
        <davem@...emloft.net>, <robh@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [RFC PATCH net-next 3/4] dt-bindings: net: Add RGMII internal delay for DP83869

Add the internal delay values into the header and update the binding
with the internal delay properties.

Signed-off-by: Dan Murphy <dmurphy@...com>
---
 .../devicetree/bindings/net/ti,dp83869.yaml      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ti,dp83869.yaml b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
index 5b69ef03bbf7..b2547b43e103 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83869.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
@@ -64,6 +64,20 @@ properties:
        Operational mode for the PHY.  If this is not set then the operational
        mode is set by the straps. see dt-bindings/net/ti-dp83869.h for values
 
+  rx-internal-delay:
+    $ref: "#/properties/rx-internal-delay"
+    description: Delay is in pico seconds
+    enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
+            3250, 3500, 3750, 4000 ]
+    default: 2000
+
+  tx-internal-delay:
+    $ref: "#/properties/tx-internal-delay"
+    description: Delay is in pico seconds
+    enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
+            3250, 3500, 3750, 4000 ]
+    default: 2000
+
 required:
   - reg
 
@@ -80,5 +94,7 @@ examples:
         ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
         ti,max-output-impedance = "true";
         ti,clk-output-sel = <DP83869_CLK_O_SEL_CHN_A_RCLK>;
+        rx-internal-delay = <2000>;
+        tx-internal-delay = <2000>;
       };
     };
-- 
2.26.2