dt-bindings: mtd: Clarify all partition subnodes

Over time the various ways to define MTD partitions has evolved. Most of
the controllers support several different bindings. Let's define all
possible choices in one file and mark the legacy ones deprecated. This
way, we can just reference this file and avoid dupplicating these
definitions.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/linux-mtd/20221114090315.848208-2-miquel.raynal@bootlin.com

diff --git a/Documentation/devicetree/bindings/mtd/mtd.yaml b/Documentation/devicetree/bindings/mtd/mtd.yaml
index 3498e485679b1e447b87336aabf37873ff65bde7..a6b498bbdbb6beca8fc62fcf499342a15c75b6df 100644 (file)
--- a/Documentation/devicetree/bindings/mtd/mtd.yaml
+++ b/Documentation/devicetree/bindings/mtd/mtd.yaml
@@ -21,7 +21,24 @@ properties:
       based name) in order to ease flash device identification and/or
       describe what they are used for.
 
+  '#address-cells':
+    deprecated: true
+
+  '#size-cells':
+    deprecated: true
+
+  partitions:
+    $ref: /schemas/mtd/partitions/partitions.yaml
+
 patternProperties:
+  "@[0-9a-f]+$":
+    $ref: partitions/partition.yaml
+    deprecated: true
+
+  "^partition@[0-9a-f]+":
+    $ref: partitions/partition.yaml
+    deprecated: true
+
   "^otp(-[0-9]+)?$":
     type: object
     $ref: ../nvmem/nvmem.yaml#

diff --git a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml
new file mode 100644 (file)
index 0000000..ff65795
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/partitions.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Partitions
+
+description: |
+  This binding is generic and describes the content of the partitions container
+  node. All partition parsers must be referenced here.
+
+maintainers:
+  - Miquel Raynal <miquel.raynal@bootlin.com>
+
+properties:
+  compatible: true
+
+  '#address-cells':
+    enum: [1, 2]
+
+  '#size-cells':
+    enum: [1, 2]
+
+patternProperties:
+  "partition(-.+|@[0-9a-f]+)":
+    $ref: partition.yaml
+
+required:
+  - compatible
+
+# Temporary value, should be set to false when constraining the parsers list
+additionalProperties: true