linux-kernel - [PATCH v2 4/7] dt-bindings: bus: Add STM32 ETZPC firewall controller

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Date:   Tue, 28 Jan 2020 16:38:03 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...com>
To:     <broonie@...nel.org>, <robh@...nel.org>, <arnd@...db.de>,
        <shawnguo@...nel.org>, <s.hauer@...gutronix.de>,
        <fabio.estevam@....com>, <sudeep.holla@....com>, <lkml@...ux.net>
CC:     <loic.pallardy@...com>, <gregkh@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>, <linux-imx@....com>,
        <kernel@...gutronix.de>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <system-dt@...ts.openampproject.org>,
        <stefano.stabellini@...inx.com>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v2 4/7] dt-bindings: bus: Add STM32 ETZPC firewall controller

Document STM32 ETZPC firewall controller bindings

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
version 2:
- use ymal file to describe the bindings
 .../bindings/bus/firewall/st,stm32-etzpc.yaml      | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/firewall/st,stm32-etzpc.yaml

diff --git a/Documentation/devicetree/bindings/bus/firewall/st,stm32-etzpc.yaml b/Documentation/devicetree/bindings/bus/firewall/st,stm32-etzpc.yaml
new file mode 100644
index 000000000000..a162e31e4529
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/firewall/st,stm32-etzpc.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/firewall/st,stm32-etzpc.yaml#
+$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 controller implementation
+
+allOf:
+  - $ref: "firewall-provider.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - st,stm32-etzpc
+
+  reg:
+   maxItems: 1
+
+  '#firewall-cells':
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - '#firewall-cells'
+
+examples:
+  - |
+    etzpc@...07000 {
+      compatible = "st,stm32-etzpc";
+      reg = <0x5c007000 0x400>;
+      #firewall-cells = <2>;
+    };
+
+...
-- 
2.15.0