[PATCH 2/8] dt-bindings: nvmem: add transformation bindings

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Just add a simple list of the supported devices which need a nvmem
transformations.

Also, since the compatible string is prepended to the actual nvmem
compatible string, we need to match using "contains" instead of an exact
match.

Signed-off-by: Michael Walle <michael@xxxxxxxx>
---
 .../devicetree/bindings/mtd/mtd.yaml          |  7 +--
 .../bindings/nvmem/nvmem-transformations.yaml | 46 +++++++++++++++++++
 2 files changed, 50 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/nvmem/nvmem-transformations.yaml

diff --git a/Documentation/devicetree/bindings/mtd/mtd.yaml b/Documentation/devicetree/bindings/mtd/mtd.yaml
index 376b679cfc70..0291e439b6a6 100644
--- a/Documentation/devicetree/bindings/mtd/mtd.yaml
+++ b/Documentation/devicetree/bindings/mtd/mtd.yaml
@@ -33,9 +33,10 @@ patternProperties:
 
     properties:
       compatible:
-        enum:
-          - user-otp
-          - factory-otp
+        contains:
+          enum:
+            - user-otp
+            - factory-otp
 
     required:
       - compatible
diff --git a/Documentation/devicetree/bindings/nvmem/nvmem-transformations.yaml b/Documentation/devicetree/bindings/nvmem/nvmem-transformations.yaml
new file mode 100644
index 000000000000..8c8d85fd6d27
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/nvmem-transformations.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/nvmem-transformations.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVMEM transformations Device Tree Bindings
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
+
+description: |
+  This is a list NVMEM devices which need transformations.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+        - enum:
+          - kontron,sl28-vpd
+        - const: user-otp
+      - const: user-otp
+
+required:
+  - compatible
+
+additionalProperties: true
+
+examples:
+  - |
+    otp-1 {
+            compatible = "kontron,sl28-vpd", "user-otp";
+            #address-cells = <1>;
+            #size-cells = <1>;
+
+            serial@2 {
+                    reg = <2 15>;
+            };
+
+            base_mac_address: base-mac-address@17 {
+                    #nvmem-cell-cells = <1>;
+                    reg = <17 6>;
+            };
+    };
+
+...
-- 
2.30.2




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