Documentation: watchdog: Add new bindings for meson8b

We make the documentation not meson6 specific anymore and add the new
binding for meson8b SoC.

Signed-off-by: Carlo Caione <carlo@endlessm.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/meson-wdt.txt b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
new file mode 100644
index 000000000000..ae70185d96e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
@@ -0,0 +1,13 @@
+Meson SoCs Watchdog timer
+
+Required properties:
+
+- compatible : should be "amlogic,meson6-wdt" or "amlogic,meson8b-wdt"
+- reg : Specifies base physical address and size of the registers.
+
+Example:
+
+wdt: watchdog@c1109900 {
+	compatible = "amlogic,meson6-wdt";
+	reg = <0xc1109900 0x8>;
+};