[PATCH 3/4] watchdog: st_wdt: Provide binding documentation for ST's LPC Watchdog driver

[Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>]

Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Signed-off-by: David Paris <david.paris-qxv4g6HH51o@public.gmane.org>
Signed-off-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
 .../devicetree/bindings/watchdog/st-lpc-wdt.txt    | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/st-lpc-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/st-lpc-wdt.txt b/Documentation/devicetree/bindings/watchdog/st-lpc-wdt.txt
new file mode 100644
index 0000000..2d0328b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/st-lpc-wdt.txt
@@ -0,0 +1,31 @@
+STMicroelectronics LPC Watchdog
+===============================
+
+Required properties
+
+- compatible 	: Must be one of:
+			"st,stih407-watchdog"
+			"st,stih416-watchdog"
+			"st,stih415-watchdog"
+			"st,stid127-watchdog"
+- reg		: LPC registers base address + size
+- reg-names	: Register map "base" and "syscfg-en" are compulsory.
+		  "syscfg-type" is platform dependent and not required for the
+		  STiH407
+- clock-names 	: Should be "lpc_wdt"
+- clocks	: Clock used by LPC device
+- timeout-sec	: Watchdog timeout in seconds
+- st,syscfg	: Syscfg node used to configure CPU reset type and mask
+- st,warm_reset	: If present, reset type will be 'warm'. If not, it will be cold
+
+Example:
+	watchdog@fde05000 {
+		compatible	= "st,stih416-lpc-watchdog";
+		reg		= <0xfde05000 0x1000> <0x204 0x4>;
+		reg-names	= "base", "syscfg-en"
+		clock-names	= "lpc_wdt";
+		clocks 		= <&clk_s_d3_flexgen CLK_LPC_0>;
+		timeout-sec	= <600>;
+		st,syscfg	= <&syscfg_core>;
+		st,warm_reset;
+	};
-- 
1.9.1

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