linux-kernel - [PATCH 16/21] dt-bindings: reserved-memory: introduce designated-movable-block

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Date:   Tue, 13 Sep 2022 12:55:03 -0700
From:   Doug Berger <opendmb@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Jonathan Corbet <corbet@....net>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Muchun Song <songmuchun@...edance.com>,
        Mike Rapoport <rppt@...nel.org>,
        Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Borislav Petkov <bp@...e.de>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Doug Berger <opendmb@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Hildenbrand <david@...hat.com>, Zi Yan <ziy@...dia.com>,
        Oscar Salvador <osalvador@...e.de>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        - <devicetree-spec@...r.kernel.org>,
        KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
        Mel Gorman <mgorman@...e.de>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mm@...ck.org, iommu@...ts.linux.dev
Subject: [PATCH 16/21] dt-bindings: reserved-memory: introduce designated-movable-block

Introduce designated-movable-block.yaml to document the
devicetree binding for Designated Movable Block children of the
reserved-memory node.

Signed-off-by: Doug Berger <opendmb@...il.com>
---
 .../designated-movable-block.yaml             | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/designated-movable-block.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/designated-movable-block.yaml b/Documentation/devicetree/bindings/reserved-memory/designated-movable-block.yaml
new file mode 100644
index 000000000000..42f846069a2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/reserved-memory/designated-movable-block.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reserved-memory/designated-movable-block.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: /reserved-memory Designated Movable Block node binding
+
+maintainers:
+  - devicetree-spec@...r.kernel.org
+
+allOf:
+  - $ref: "reserved-memory.yaml"
+
+properties:
+  compatible:
+    const: designated-movable-block
+    description:
+      This indicates a region of memory meant to be placed into
+      ZONE_MOVABLE.
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reusable
+
+examples:
+  - |
+      reserved-memory {
+          #address-cells = <0x2>;
+          #size-cells = <0x2>;
+
+          DMB0@...00000 {
+               compatible = "designated-movable-block";
+               reusable;
+               reg = <0x0 0x10800000 0x0 0x2d800000>;
+          };
+
+          DMB1@...00000 {
+               compatible = "designated-movable-block";
+               reusable;
+               reg = <0x0 0x40000000 0x0 0x30000000>;
+          };
+
+          DMB2@...00000 {
+               compatible = "designated-movable-block";
+               reusable;
+               reg = <0x0 0x80000000 0x0 0x2fc00000>;
+          };
+      };
-- 
2.25.1