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Date:   Thu,  4 Aug 2022 15:46:58 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Madalin Bucur <madalin.bucur@....com>,
        Camelia Alexandra Groza <camelia.groza@....com>,
        netdev@...r.kernel.org
Cc:     "linuxppc-dev @ lists . ozlabs . org" <linuxppc-dev@...ts.ozlabs.org>,
        linux-kernel@...r.kernel.org, Paolo Abeni <pabeni@...hat.com>,
        linux-arm-kernel@...ts.infradead.org,
        Eric Dumazet <edumazet@...gle.com>,
        Russell King <linux@...linux.org.uk>,
        Sean Anderson <sean.anderson@...o.com>
Subject: [PATCH net-next v4 1/8] dt-bindings: net: Expand pcs-handle to an array

This allows multiple phandles to be specified for pcs-handle, such as
when multiple PCSs are present for a single MAC. To differentiate
between them, also add a pcs-handle-names property.

Signed-off-by: Sean Anderson <sean.anderson@...o.com>
---
This was previously submitted as [1]. I expect to update this series
more, so I have moved it here. Changes from that version include:
- Add maxItems to existing bindings
- Add a depenendency from pcs-names to pcs-handle.

[1] https://lore.kernel.org/netdev/20220711160519.741990-3-sean.anderson@seco.com/

Changes in v4:
- Use pcs-handle-names instead of pcs-names, as discussed

Changes in v3:
- New

 .../bindings/net/dsa/renesas,rzn1-a5psw.yaml           |  1 +
 .../devicetree/bindings/net/ethernet-controller.yaml   | 10 +++++++++-
 .../devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml    |  2 +-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
index 4d428f5ad044..b87574549df3 100644
--- a/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
@@ -74,6 +74,7 @@ properties:
 
         properties:
           pcs-handle:
+            maxItems: 1
             description:
               phandle pointing to a PCS sub-node compatible with
               renesas,rzn1-miic.yaml#
diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 56d9aca8c954..bc4c0b060a4f 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -107,11 +107,16 @@ properties:
     $ref: "#/properties/phy-connection-type"
 
   pcs-handle:
-    $ref: /schemas/types.yaml#/definitions/phandle
+    $ref: /schemas/types.yaml#/definitions/phandle-array
     description:
       Specifies a reference to a node representing a PCS PHY device on a MDIO
       bus to link with an external PHY (phy-handle) if exists.
 
+  pcs-handle-names:
+    $ref: /schemas/types.yaml#/definitions/string-array
+    description:
+      The name of each PCS in pcs-handle.
+
   phy-handle:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
@@ -220,6 +225,9 @@ properties:
           required:
             - speed
 
+dependencies:
+  pcs-handle-names: [pcs-handle]
+
 allOf:
   - if:
       properties:
diff --git a/Documentation/devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml b/Documentation/devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml
index 7f620a71a972..600240281e8c 100644
--- a/Documentation/devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml
+++ b/Documentation/devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml
@@ -31,7 +31,7 @@ properties:
   phy-mode: true
 
   pcs-handle:
-    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
     description:
       A reference to a node representing a PCS PHY device found on
       the internal MDIO bus.
-- 
2.35.1.1320.gc452695387.dirty

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