linux-kernel - [PATCH v2 1/2] dt-bindings: mailbox: Add the Spreadtrum mailbox documentation

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Date:   Mon, 23 Mar 2020 14:13:46 +0800
From:   Baolin Wang <baolin.wang7@...il.com>
To:     robh+dt@...nel.org, mark.rutland@....com, jassisinghbrar@...il.com
Cc:     orsonzhai@...il.com, zhang.lyra@...il.com, baolin.wang7@...il.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: mailbox: Add the Spreadtrum mailbox documentation

From: Baolin Wang <baolin.wang@...soc.com>

Add the Spreadtrum mailbox documentation.

Signed-off-by: Baolin Wang <baolin.wang@...soc.com>
Signed-off-by: Baolin Wang <baolin.wang7@...il.com>
---
Changes from v1:
 - Add 'additionalProperties'.
 - Split description for each entry.
---
 .../devicetree/bindings/mailbox/sprd-mailbox.yaml  | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/sprd-mailbox.yaml

diff --git a/Documentation/devicetree/bindings/mailbox/sprd-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/sprd-mailbox.yaml
new file mode 100644
index 0000000..0848b18
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/sprd-mailbox.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/mailbox/sprd-mailbox.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Spreadtrum mailbox controller bindings
+
+maintainers:
+  - Orson Zhai <orsonzhai@...il.com>
+  - Baolin Wang <baolin.wang7@...il.com>
+  - Chunyan Zhang <zhang.lyra@...il.com>
+
+properties:
+  compatible:
+    enum:
+      - sprd,sc9860-mailbox
+
+  reg:
+    items:
+      - description: inbox registers' base address
+      - description: outbox registers' base address
+    minItems: 2
+
+  interrupts:
+    items:
+      - description: inbox interrupt
+      - description: outbox interrupt
+    minItems: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: enable
+
+  "#mbox-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - "#mbox-cells"
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    mailbox: mailbox@...a0000 {
+      compatible = "sprd,sc9860-mailbox";
+      reg = <0 0x400a0000 0 0x8000>, <0 0x400a8000 0 0x8000>;
+      #mbox-cells = <1>;
+      clock-names = "enable";
+      clocks = <&aon_gate 53>;
+      interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+    };
+...
-- 
1.9.1