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authorLudovic Barre2018-06-25 17:42:59 +0200
committerWim Van Sebroeck2018-08-02 15:57:09 +0200
commite454652eb21535055337ae8908e164daed355ee7 (patch)
tree2108edf7b7ec7b92995186f1fd630ac0ffbd4b13
parent9b255782b58d8dfb683018761925bca597f80895 (diff)
dt-bindings: watchdog: add stm32mp1 support
This patch adds support of stm32mp1. stm32mp1 requires 2 clocks lsi and pclk. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Guenter Roeck Linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
-rw-r--r--Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt13
1 files changed, 10 insertions, 3 deletions
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>;
};