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Date: Tue, 19 Dec 2023 02:32:11 +0000
From: Daniel Golle <daniel@makrotopia.org>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Daniel Golle <daniel@makrotopia.org>, linux-mtd@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v7 2/7] dt-bindings: mtd: ubi-volume: allow UBI volumes to
 provide NVMEM
Message-ID: <9732880851f342a4a1beef005c3432c9a91a43a3.1702952891.git.daniel@makrotopia.org>
References: <cover.1702952891.git.daniel@makrotopia.org>
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In-Reply-To: <cover.1702952891.git.daniel@makrotopia.org>

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

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/mtd/partitions/linux,ubi.yaml  | 10 ++++++++++
 .../devicetree/bindings/mtd/partitions/ubi-volume.yaml |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml b/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
index 7084a1945b310..27e1ac1f252e4 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
@@ -59,6 +59,16 @@ examples:
                 ubi-volume-caldata {
                     volid = <2>;
                     volname = "rf";
+
+                    nvmem-layout {
+                        compatible = "fixed-layout";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+
+                        eeprom@0 {
+                            reg = <0x0 0x1000>;
+                        };
+                    };
                 };
             };
         };
diff --git a/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml b/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml
index 1e3f04dedc01d..19736b26056b2 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml
@@ -24,6 +24,11 @@ properties:
     description:
       Match UBI volume ID
 
+  nvmem-layout:
+    $ref: /schemas/nvmem/layouts/nvmem-layout.yaml#
+    description:
+      This container may reference an NVMEM layout parser.
+
 anyOf:
   - required:
       - volid
-- 
2.43.0