linux-kernel - [PATCH 2/2] dt-bindings: watchdog: Convert i.MX7ULP to json-schema

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Message-Id: <1586831568-24635-2-git-send-email-Anson.Huang@nxp.com>
Date:   Tue, 14 Apr 2020 10:32:48 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     wim@...ux-watchdog.org, linux@...ck-us.net, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-watchdog@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH 2/2] dt-bindings: watchdog: Convert i.MX7ULP to json-schema

Convert the i.MX7ULP watchdog binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 .../bindings/watchdog/fsl-imx7ulp-wdt.txt          | 22 --------
 .../bindings/watchdog/fsl-imx7ulp-wdt.yaml         | 60 ++++++++++++++++++++++
 2 files changed, 60 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
deleted file mode 100644
index f902508..0000000
--- a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* Freescale i.MX7ULP Watchdog Timer (WDT) Controller
-
-Required properties:
-- compatible : Should be "fsl,imx7ulp-wdt"
-- reg : Should contain WDT registers location and length
-- interrupts : Should contain WDT interrupt
-- clocks: Should contain a phandle pointing to the gated peripheral clock.
-
-Optional properties:
-- timeout-sec : Contains the watchdog timeout in seconds
-
-Examples:
-
-wdog1: watchdog@...d0000 {
-	compatible = "fsl,imx7ulp-wdt";
-	reg = <0x403d0000 0x10000>;
-	interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
-	assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
-	assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
-	timeout-sec = <40>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
new file mode 100644
index 0000000..0fe0ef9
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/fsl-imx7ulp-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX7ULP Watchdog Timer (WDT) Controller
+
+maintainers:
+  - Anson Huang <Anson.Huang@....com>
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx7ulp-wdt
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description: |
+      Watchdog's clock source.
+    maxItems: 1
+
+  assigned-clocks:
+    maxItems: 1
+
+  assigned-clocks-parents:
+    maxItems: 1
+
+required:
+  - compatible
+  - interrupts
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx7ulp-clock.h>
+
+    wdog1: watchdog@...d0000 {
+        compatible = "fsl,imx7ulp-wdt";
+        reg = <0x403d0000 0x10000>;
+        interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
+        assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
+        assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
+        timeout-sec = <40>;
+    };
+
+...
-- 
2.7.4