[PATCH v7 1/2] dt-bindings: mtd: fixed-partition: Add binman compatibles

[Simon Glass]

Add two compatibles for binman entries, as a starting point for the
schema.

Note that, after discussion on v2, we decided to keep the existing
meaning of label so as not to require changes to existing userspace
software when moving to use binman nodes to specify the firmware
layout.

Note also that, after discussion on v6, we decided to use the same
'fixed-partition' schema for the binman features, so this version
adds a new 'binman.yaml' file providing the new compatibles to the
existing partition.yaml binding.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v7:
- Adjust MAINTAINERS entry
- Put compatible strings into the 'fixed-partition' binding

Changes in v5:
- Add mention of why 'binman' is the vendor
- Drop  'select: false'
- Tidy up the compatible setings
- Use 'tfa-bl31' instead of 'atf-bl31'

Changes in v4:
- Correct selection of multiple compatible strings

Changes in v3:
- Drop fixed-partitions from the example
- Use compatible instead of label

Changes in v2:
- Use plain partition at xxx for the node name

 .../bindings/mtd/partitions/binman.yaml       | 49 +++++++++++++++++++
 MAINTAINERS                                   |  5 ++
 2 files changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman.yaml

diff --git a/Documentation/devicetree/bindings/mtd/partitions/binman.yaml b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml
new file mode 100644
index 000000000000..83417ad5cee9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/binman.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binman entries
+
+description: |
+  TBD
+
+maintainers:
+  - Simon Glass <sjg at chromium.org>
+
+allOf:
+  - $ref: /schemas/mtd/partitions/partition.yaml#
+
+properties:
+  compatible:
+    enum:
+      - binman,entry # generic binman entry
+      - u-boot       # u-boot.bin from U-Boot project
+      - tfa-bl31     # bl31.bin or bl31.elf from TF-A project
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        partition at 100000 {
+            compatible = "u-boot";
+            reg = <0x100000 0xf00000>;
+            align-size = <0x1000>;
+            align-end = <0x10000>;
+        };
+
+        partition at 200000 {
+            compatible = "tfa-bl31";
+            reg = <0x200000 0x100000>;
+            align = <0x4000>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1aabf1c15bb3..66f5e09e2d70 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3576,6 +3576,11 @@ F:	Documentation/filesystems/bfs.rst
 F:	fs/bfs/
 F:	include/uapi/linux/bfs_fs.h
 
+BINMAN
+M:	Simon Glass <sjg at chromium.org>
+S:	Supported
+F:	Documentation/devicetree/bindings/mtd/partitions/binman*
+
 BITMAP API
 M:	Yury Norov <yury.norov at gmail.com>
 R:	Andy Shevchenko <andriy.shevchenko at linux.intel.com>
-- 
2.34.1