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From:   Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To:     gregkh@linuxfoundation.org
Cc:     linux-kernel@vger.kernel.org, Michael Walle <michael@walle.cc>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Rob Herring <robh@kernel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH 11/13] dt-bindings: nvmem: add YAML schema for the sl28 vpd layout
Date:   Fri, 18 Nov 2022 06:39:30 +0000
Message-Id: <20221118063932.6418-12-srinivas.kandagatla@linaro.org>
In-Reply-To: <20221118063932.6418-1-srinivas.kandagatla@linaro.org>
References: <20221118063932.6418-1-srinivas.kandagatla@linaro.org>
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From: Michael Walle <michael@walle.cc>

Add a schema for the NVMEM layout on Kontron's sl28 boards.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 .../nvmem/layouts/kontron,sl28-vpd.yaml       | 64 +++++++++++++++++++
 .../bindings/nvmem/layouts/nvmem-layout.yaml  |  3 +
 2 files changed, 67 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml

diff --git a/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml b/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml
new file mode 100644
index 000000000000..c713e23819f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/layouts/kontron,sl28-vpd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVMEM layout of the Kontron SMARC-sAL28 vital product data
+
+maintainers:
+  - Michael Walle <michael@walle.cc>
+
+description:
+  The vital product data (VPD) of the sl28 boards contains a serial
+  number and a base MAC address. The actual MAC addresses for the
+  on-board ethernet devices are derived from this base MAC address by
+  adding an offset.
+
+select: false
+
+properties:
+  compatible:
+    const: kontron,sl28-vpd
+
+  serial-number:
+    type: object
+    description: The board's serial number
+
+    additionalProperties: false
+
+  base-mac-address:
+    type: object
+    description:
+      Base MAC address for all on-module network interfaces. The first
+      argument of the phandle will be treated as an offset.
+
+    properties:
+      "#nvmem-cell-cells":
+        const: 1
+
+    additionalProperties: false
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+      otp-1 {
+          compatible = "user-otp";
+
+          nvmem-layout {
+              compatible = "kontron,sl28-vpd";
+
+              serial_number: serial-number {
+              };
+
+              base_mac_address: base-mac-address {
+                  #nvmem-cell-cells = <1>;
+              };
+          };
+      };
+
+...
diff --git a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
index ecc7c37cbc1f..f64ea2fa362d 100644
--- a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
+++ b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
@@ -17,6 +17,9 @@ description: |
   define and might require dynamic reading of the NVMEM device in order to
   perform their parsing. The nvmem-layout container is here to describe these.
 
+oneOf:
+  - $ref: kontron,sl28-vpd.yaml
+
 properties:
   compatible: true
 
-- 
2.25.1