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authorSamuel Holland <samuel@sholland.org>2021-09-02 17:57:49 -0500
committerWim Van Sebroeck <wim@linux-watchdog.org>2021-10-26 21:31:08 +0200
commit601db217916de339ddebeb3b6f024f09a275562a (patch)
treea97fbcde9f82d540efb117d5cc8053b594d14de6 /Documentation/devicetree
parent28b7ee33a2122569ac065cad578bf23f50cc65c3 (diff)
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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 <samuel@sholland.org> Acked-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210902225750.29313-3-samuel@sholland.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml6
1 files changed, 6 insertions, 0 deletions
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