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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>
This commit is contained in:
Ludovic Barre 2018-06-25 17:42:59 +02:00 committed by Wim Van Sebroeck
parent 9b255782b5
commit e454652eb2
1 changed files with 10 additions and 3 deletions
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13
Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
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@ -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>;
};