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Message-ID: <20191122101616.14351-1-benjamin.gaignard@st.com>
Date: Fri, 22 Nov 2019 11:16:16 +0100
From: Benjamin Gaignard <benjamin.gaignard@...com>
To: <wim@...ux-watchdog.org>, <linux@...ck-us.net>,
<robh+dt@...nel.org>, <mark.rutland@....com>,
<alexandre.torgue@...com>
CC: <linux-watchdog@...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 v3] dt-bindings: watchdog: Convert stm32 watchdog bindings to json-schema
Convert the STM32 watchdog binding to DT schema format using json-schema
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
changes in version 3:
- fix typo in clock-names enum
changes in version 2:
- remove trailer space
- add Christophe in the maintainers list
.../devicetree/bindings/watchdog/st,stm32-iwdg.txt | 26 ----------
.../bindings/watchdog/st,stm32-iwdg.yaml | 55 ++++++++++++++++++++++
2 files changed, 55 insertions(+), 26 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
create mode 100644 Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
deleted file mode 100644
index d8f4430b0a13..000000000000
--- a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-STM32 Independent WatchDoG (IWDG)
----------------------------------
-
-Required properties:
-- compatible: Should be either:
- - "st,stm32-iwdg"
- - "st,stm32mp1-iwdg"
-- reg: Physical base address and length of the registers set for the device
-- clocks: Reference to the clock entry lsi. Additional pclk clock entry
- is required only for st,stm32mp1-iwdg.
-- clock-names: Name of the clocks used.
- "lsi" for st,stm32-iwdg
- "lsi", "pclk" for st,stm32mp1-iwdg
-
-Optional Properties:
-- timeout-sec: Watchdog timeout value in seconds.
-
-Example:
-
-iwdg: watchdog@...03000 {
- compatible = "st,stm32-iwdg";
- reg = <0x40003000 0x400>;
- clocks = <&clk_lsi>;
- clock-names = "lsi";
- timeout-sec = <32>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
new file mode 100644
index 000000000000..928588091710
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/st,stm32-iwdg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Independent WatchDoG (IWDG) bindings
+
+maintainers:
+ - Yannick Fertre <yannick.fertre@...com>
+ - Christophe Roullier <christophe.roullier@...com>
+
+allOf:
+ - $ref: "watchdog.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - st,stm32-iwdg
+ - st,stm32mp1-iwdg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Low speed clock
+ - description: Optional peripheral clock
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ enum: [ lsi, pclk ]
+ minItems: 1
+ maxItems: 2
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ watchdog@...02000 {
+ compatible = "st,stm32mp1-iwdg";
+ reg = <0x5a002000 0x400>;
+ clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
+ clock-names = "pclk", "lsi";
+ timeout-sec = <32>;
+ };
+
+...
--
2.15.0
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