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authorYannick Fertre <yannick.fertre@st.com>2017-04-06 15:19:24 +0300
committerWim Van Sebroeck <wim@iguana.be>2017-06-05 21:39:58 +0300
commit5df11427b2d20ac1f4fdd1bcb6319743a4b6797e (patch)
treef27010ec15bbf9275e589669201de769c04477b6
parentf66872b5be147b32806dc98d808ee784fe7965c7 (diff)
downloadlinux-5df11427b2d20ac1f4fdd1bcb6319743a4b6797e.tar.xz
dt-bindings: watchdog: Document STM32 IWDG bindings
This adds documentation of device tree bindings for the STM32 IWDG (Independent WatchDoG). Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
-rw-r--r--Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
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index 000000000000..cc13b10a3f82
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+++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
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+STM32 Independent WatchDoG (IWDG)
+---------------------------------
+
+Required properties:
+- compatible: "st,stm32-iwdg"
+- reg: physical base address and length of the registers set for the device
+- clocks: must contain a single entry describing the clock input
+
+Optional Properties:
+- timeout-sec: Watchdog timeout value in seconds.
+
+Example:
+
+iwdg: watchdog@40003000 {
+ compatible = "st,stm32-iwdg";
+ reg = <0x40003000 0x400>;
+ clocks = <&clk_lsi>;
+ timeout-sec = <32>;
+};