netdev - [PATCH 4/6] dt-bindings: net: marvell,prestera: Describe PCI devices of the prestera family

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Message-Id: <20221117215557.1277033-5-miquel.raynal@bootlin.com>
Date:   Thu, 17 Nov 2022 22:55:55 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        devicetree@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org
Cc:     Marcin Wojtas <mw@...ihalf.com>,
        Russell King <linux@...linux.org.uk>,
        Taras Chornyi <tchornyi@...vell.com>,
        <linux-kernel@...r.kernel.org>,
        Robert Marko <robert.marko@...tura.hr>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH 4/6] dt-bindings: net: marvell,prestera: Describe PCI devices of the prestera family

Even though the devices have very little in common beside the name and
the main "switch" feature, Marvell Prestera switch family is also
composed of PCI-only devices which can receive additional static
properties, like nvmem cells to point at MAC addresses, for
instance. Let's describe them.

Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
 .../bindings/net/marvell,prestera.yaml        | 55 ++++++++++++++++---
 1 file changed, 48 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/marvell,prestera.yaml b/Documentation/devicetree/bindings/net/marvell,prestera.yaml
index b0a3ecca406e..f159fadf86ec 100644
--- a/Documentation/devicetree/bindings/net/marvell,prestera.yaml
+++ b/Documentation/devicetree/bindings/net/marvell,prestera.yaml
@@ -4,19 +4,24 @@
 $id: http://devicetree.org/schemas/net/marvell,prestera.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Marvell Prestera AlleyCat3 switch
+title: Marvell Prestera switch family
 
 maintainers:
   - Miquel Raynal <miquel.raynal@...tlin.com>
 
 properties:
   compatible:
-    items:
+    oneOf:
+      - items:
+          - enum:
+              - marvell,prestera-98dx3236
+              - marvell,prestera-98dx3336
+              - marvell,prestera-98dx4251
+          - const: marvell,prestera
       - enum:
-          - marvell,prestera-98dx3236
-          - marvell,prestera-98dx3336
-          - marvell,prestera-98dx4251
-      - const: marvell,prestera
+          - pci11ab,c804
+          - pci11ab,c80c
+          - pci11ab,cc1e
 
   reg:
     maxItems: 1
@@ -28,10 +33,33 @@ properties:
     description: Reference to the DFX Server bus node.
     $ref: /schemas/types.yaml#/definitions/phandle
 
+  nvmem-cells: true
+
+  nvmem-cell-names: true
+
+if:
+  properties:
+    compatible:
+      contains:
+        const: marvell,prestera
+
+# Memory mapped AlleyCat3 family
+then:
+  properties:
+    nvmem-cells: false
+    nvmem-cell-names: false
+  required:
+    - interrupts
+
+# PCI Aldrin family
+else:
+  properties:
+    interrupts: false
+    dfx: false
+
 required:
   - compatible
   - reg
-  - interrupts
 
 additionalProperties: false
 
@@ -43,3 +71,16 @@ examples:
         interrupts = <33>, <34>, <35>;
         dfx = <&dfx>;
     };
+
+  - |
+    pcie {
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        switch@0,0 {
+            reg = <0x0 0x0 0x0 0x0 0x0>;
+            compatible = "pci11ab,c80c";
+            nvmem-cells = <&mac_address 0>;
+            nvmem-cell-names = "mac-address";
+        };
+    };
-- 
2.34.1