dt-bindings: watchdog: sunxi: Add compatibles for D1

D1 keeps the same register layout and clock sources as the R329, but it
adds a key field which must be set to update the watchdog's "CFG" and
"MODE" registers. Therefore it is not backward-compatible.

Similarly to the R329, the D1 has three watchdog instances, and only one
of them has the "soft reset" registers. So that instance needs an extra
compatible string.

Signed-off-by: Samuel Holland <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Acked-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

Author: smaeul

Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml

@@ -30,6 +30,10 @@ properties:
       - items:
           - const: allwinner,suniv-f1c100s-wdt
           - const: allwinner,sun4i-a10-wdt
+      - const: allwinner,sun20i-d1-wdt
+      - items:
+          - const: allwinner,sun20i-d1-wdt-reset
+          - const: allwinner,sun20i-d1-wdt
 
   reg:
     maxItems: 1
@@ -62,6 +66,8 @@ if:
     compatible:
       contains:
         enum:
+          - allwinner,sun20i-d1-wdt
+          - allwinner,sun20i-d1-wdt-reset
           - allwinner,sun50i-r329-wdt
           - allwinner,sun50i-r329-wdt-reset