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 <samuel@xxxxxxxxxxxx>
---
Changes v2 to v3:
- Add additional allwinner,sun20i-d1-wdt-reset compatible
Changes v1 to v2:
- None
.../bindings/watchdog/allwinner,sun4i-a10-wdt.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
index 877f47759814..44cad9427ae6 100644
--- a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
+++ b/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
--
2.31.1
