Thread (15 messages) 15 messages, 7 authors, 2021-06-29

Re: [PATCH v4 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-11-20 10:51:11
Also in: linux-devicetree, lkml

On Fri, Nov 20, 2020 at 06:11:09PM +0800, Alice Guo wrote:
quoted hunk ↗ jump to hunk
Add DT Binding doc for the Unique ID of i.MX 8M series.

v2: remove the subject prefix "LF-2571-1"
v3: put it into Documentation/devicetree/bindings/arm/fsl.yaml
    modify the description of nvmem-cells
    use "make ARCH=arm64 dtbs_check" to test it and fix errors
v4: use allOf to limit new version DTS files for i.MX8M to include
    "fsl,imx8mm/n/p/q-soc", nvmem-cells and nvmem-cells-names

Signed-off-by: Alice Guo <redacted>
---
 .../devicetree/bindings/arm/fsl.yaml          | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 67980dcef66d..d8048323a290 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -918,6 +918,57 @@ properties:
               - fsl,s32v234-evb           # S32V234-EVB2 Customer Evaluation Board
           - const: fsl,s32v234

+  soc:
+    type: object
+    properties:
+      compatible:
+        oneOf:
+          - description: new version compatible for i.MX8M SoCs
+            items:
+              - enum:
+                  - fsl,imx8mm-soc
+                  - fsl,imx8mn-soc
+                  - fsl,imx8mp-soc
+                  - fsl,imx8mq-soc
+              - const: simple-bus
+
+          - description: old version compatible for i.MX8M SoCs
+            items:
+              - 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
+
+    allOf:
Nothing changed here comparing to previous version. Still does not
work.

The allOf should not be part of soc node because the "if" below won't
match. Instead, it should be against root node.

Best regards,
Krzysztof
+      - if:
+          properties:
+            compatible:
+              contains:
+                enum:
+                  - fsl,imx8mm
+                  - fsl,imx8mn
+                  - fsl,imx8mp
+                  - fsl,imx8mq
+
+        then:
+          properties:
+            compatible:
+              items:
+                - enum:
+                    - fsl,imx8mm-soc
+                    - fsl,imx8mn-soc
+                    - fsl,imx8mp-soc
+                    - fsl,imx8mq-soc
+                - const: simple-bus
+
+          required:
+            - nvmem-cells
+            - nvmem-cells-names
+
 additionalProperties: true

 ...
--
2.17.1
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