linux-kernel - [PATCH 3/5] dt-bindings: bus: Add STM32 ETZPC firewall controller

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Date:   Mon, 20 Apr 2020 15:47:58 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...com>
To:     <robh+dt@...nel.org>, <mcoquelin.stm32@...il.com>,
        <alexandre.torgue@...com>, <gregkh@...uxfoundation.org>,
        <loic.pallardy@...com>, <linus.walleij@...aro.org>
CC:     <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH 3/5] dt-bindings: bus: Add STM32 ETZPC firewall controller

Document STM32 ETZPC firewall controller bindings

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
 .../bindings/bus/stm32/st,stm32-etzpc.yaml         | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml

diff --git a/Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml b/Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml
new file mode 100644
index 000000000000..a684475ef339
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/stm32/st,stm32-etzpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Extended TrustZone Protection controller
+
+maintainers:
+  - Benjamin Gaignard <benjamin.gaignard@...com>
+
+description: STMicroelectronics's STM32 firewall bus controller implementation
+
+allOf:
+  - $ref: "firewall-provider.yaml#"
+  - $ref: /schemas/simple-bus.yaml#
+
+properties:
+  compatible:
+    contains:
+      enum:
+        - st,stm32-etzpc-bus
+
+  reg:
+   maxItems: 1
+
+  '#firewall-cells':
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - '#firewall-cells'
+
+examples:
+  - |
+    soc {
+      compatible = "st,stm32-etzpc-bus", "simple-bus";
+      reg = <0x5c007000 0x400>;
+      #firewall-cells = <2>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+      ranges;
+    };
+
+...
-- 
2.15.0