linux-kernel - [PATCH v3 2/8] dt-bindings: mtd: nvmem-cells: allow UBI volumes to provide NVMEM

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Date:   Tue, 8 Aug 2023 17:03:47 +0100
From:   Daniel Golle <daniel@...rotopia.org>
To:     Randy Dunlap <rdunlap@...radead.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Daniel Golle <daniel@...rotopia.org>,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/8] dt-bindings: mtd: nvmem-cells: allow UBI volumes to
 provide NVMEM

UBI volumes may be used to contain NVMEM bits, typically device MAC
addresses or wireless radio calibration data.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 .../devicetree/bindings/mtd/partitions/linux,ubi.yaml        | 3 ++-
 .../devicetree/bindings/mtd/partitions/nvmem-cells.yaml      | 5 ++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml b/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
index 79cfa0a3eaa7d..56e71e3eb56bd 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
@@ -56,9 +56,10 @@ examples:
             compatible = "linux,ubi";
 
             volumes {
-                ubi-volume-caldata {
+                wifi_caldata: ubi-volume-caldata {
                     volid = <2>;
                     volname = "rf";
+                    compatible = "nvmem-cells";
                 };
             };
         };
diff --git a/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml b/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
index 5474d63268dc5..b92a0b35df094 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
@@ -17,9 +17,12 @@ maintainers:
   - Ansuel Smith <ansuelsmth@...il.com>
 
 allOf:
-  - $ref: /schemas/mtd/partitions/partition.yaml#
   - $ref: /schemas/nvmem/nvmem.yaml#
 
+oneOf:
+  - $ref: /schemas/mtd/partitions/partition.yaml#
+  - $ref: /schemas/mtd/partitions/ubi-volume.yaml#
+
 properties:
   compatible:
     const: nvmem-cells
-- 
2.41.0