From e454652eb21535055337ae8908e164daed355ee7 Mon Sep 17 00:00:00 2001 From: Ludovic Barre Date: Mon, 25 Jun 2018 17:42:59 +0200 Subject: dt-bindings: watchdog: add stm32mp1 support This patch adds support of stm32mp1. stm32mp1 requires 2 clocks lsi and pclk. Signed-off-by: Ludovic Barre Reviewed-by: Rob Herring Reviewed-by: Guenter Roeck Linux@roeck-us.net> Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- .../devicetree/bindings/watchdog/st,stm32-iwdg.txt | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Documentation/devicetree/bindings/watchdog') diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt index cc13b10a3f82..d8f4430b0a13 100644 --- a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt +++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt @@ -2,9 +2,15 @@ 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 +- 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. @@ -15,5 +21,6 @@ iwdg: watchdog@40003000 { compatible = "st,stm32-iwdg"; reg = <0x40003000 0x400>; clocks = <&clk_lsi>; + clock-names = "lsi"; timeout-sec = <32>; }; -- cgit v1.2.3