[PATCH V5 1/5] dt-bindings: watchdog: add stm32mp1 support

From: Ludovic Barre
Date: Mon Jun 25 2018 - 11:44:07 EST


From: Ludovic Barre <ludovic.barre@xxxxxx>

This patch adds support of stm32mp1.
stm32mp1 requires 2 clocks lsi and pclk.

Signed-off-by: Ludovic Barre <ludovic.barre@xxxxxx>
---
.../devicetree/bindings/watchdog/st,stm32-iwdg.txt | 13 ++++++++++---
1 file 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 cc13b10a..d8f4430 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>;
};
--
2.7.4