Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
new file mode 100644
index 000000000..eb0914420
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
@@ -0,0 +1,24 @@
+Synopsys Designware Watchdog Timer
+
+Required Properties:
+
+- compatible	: Should contain "snps,dw-wdt"
+- reg		: Base address and size of the watchdog timer registers.
+- clocks	: phandle + clock-specifier for the clock that drives the
+		watchdog timer.
+
+Optional Properties:
+
+- interrupts	: The interrupt used for the watchdog timeout warning.
+- resets	: phandle pointing to the system reset controller with
+		line index for the watchdog.
+
+Example:
+
+	watchdog0: wd@ffd02000 {
+		compatible = "snps,dw-wdt";
+		reg = <0xffd02000 0x1000>;
+		interrupts = <0 171 4>;
+		clocks = <&per_base_clk>;
+		resets = <&rst WDT0_RESET>;
+	};