netdev - [PATCH 1/2] dt-bindings: net: Add bcm6368-mdio-mux bindings

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Date:   Mon,  8 Mar 2021 19:41:01 +0100
From:   Álvaro Fernández Rojas 
        <noltari@...il.com>
To:     jonas.gorski@...il.com, "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Fernández Rojas <noltari@...il.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: net: Add bcm6368-mdio-mux bindings

Add documentations for bcm6368 mdio mux driver.

Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
---
 .../bindings/net/brcm,bcm6368-mdio-mux.yaml   | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml

diff --git a/Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml b/Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml
new file mode 100644
index 000000000000..d3481d1c59ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/brcm,bcm6368-mdio-mux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM6368 MDIO bus multiplexer
+
+maintainers:
+  - Álvaro Fernández Rojas <noltari@...il.com>
+
+description:
+  This MDIO bus multiplexer defines buses that could be internal as well as
+  external to SoCs. When child bus is selected, one needs to select these two
+  properties as well to generate desired MDIO transaction on appropriate bus.
+
+allOf:
+  - $ref: "mdio.yaml#"
+
+properties:
+  compatible:
+    const: brcm,bcm6368-mdio-mux
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+patternProperties:
+  '^mdio@[0-1]$':
+    type: object
+    properties:
+      reg:
+        maxItems: 1
+
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    required:
+      - reg
+      - "#address-cells"
+      - "#size-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mdio0: mdio@...000b0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      compatible = "brcm,bcm6368-mdio-mux";
+      reg = <0x10e000b0 0x6>;
+
+      mdio_int: mdio@0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <0>;
+      };
+
+      mdio_ext: mdio@1 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <1>;
+      };
+    };
-- 
2.20.1