linux-kernel - [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

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Message-Id: <20201218083726.16427-1-alice.guo@oss.nxp.com>
Date:   Fri, 18 Dec 2020 16:37:23 +0800
From:   "Alice Guo (OSS)" <alice.guo@....nxp.com>
To:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, krzk@...nel.org
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-imx@....com
Subject: [PATCH v8 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

From: Alice Guo <alice.guo@....com>

Add DT Binding doc for the Unique ID of i.MX 8M series.

Signed-off-by: Alice Guo <alice.guo@....com>
---

Changes for v8:
 - match soc node with regular expression
Changes for v7:
 - change to a separate schema file
Changes for v6:
 - none
Changes for v5:
 - correct the error of using allOf
Changes for v4:
 - use allOf to limit new version DTS files for i.MX8M to include
   "fsl,imx8m*-soc", nvmem-cells and nvmem-cells-names
Changes for v3:
 - put it into Documentation/devicetree/bindings/arm/fsl.yaml
 - modify the description of nvmem-cells
 - use "make ARCH=arm64 dtbs_check" to make sure it is right
Changes for v2:
 - remove the subject prefix "LF-2571-1"

 .../bindings/soc/imx/imx8m-soc.yaml           | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/imx/imx8m-soc.yaml

diff --git a/Documentation/devicetree/bindings/soc/imx/imx8m-soc.yaml b/Documentation/devicetree/bindings/soc/imx/imx8m-soc.yaml
new file mode 100644
index 000000000000..f0b0fc7b3ac6
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/imx/imx8m-soc.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/imx/imx8m-soc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8M Series SoC
+
+maintainers:
+  - Alice Guo <alice.guo@....com>
+
+description: |
+  NXP i.MX8M series SoCs contain fuse entries from which SoC Unique ID can be
+  obtained.
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - fsl,imx8mm
+          - fsl,imx8mn
+          - fsl,imx8mp
+          - fsl,imx8mq
+  required:
+    - compatible
+
+patternProperties:
+  "^soc@[0-9a-f]+$":
+    type: object
+    properties:
+      compatible:
+        items:
+          - enum:
+              - fsl,imx8mm-soc
+              - fsl,imx8mn-soc
+              - fsl,imx8mp-soc
+              - fsl,imx8mq-soc
+          - const: simple-bus
+
+      nvmem-cells:
+        maxItems: 1
+        description: Phandle to the SOC Unique ID provided by a nvmem node
+
+      nvmem-cells-names:
+        const: soc_unique_id
+
+    required:
+      - compatible
+      - nvmem-cells
+      - nvmem-cell-names
+
+additionalProperties: true
+...
--
2.17.1