linux-kernel - [PATCH v3 1/2] dt-bindings: watchdog: max63xx: Add GPIO binding

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Date:   Tue,  5 Jul 2022 02:10:22 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/2] dt-bindings: watchdog: max63xx: Add GPIO binding

GPIO is optional and used for WDI logic.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
Changes in v3:
* Extend description
---
 Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml b/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml
index ab9641e845db..a0cf9e6c371d 100644
--- a/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml
+++ b/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml
@@ -27,6 +27,10 @@ properties:
     description: This is a 1-byte memory-mapped address
     maxItems: 1
 
+  gpios:
+    description: Optional GPIO used for controlling WDI (watchdog input) when WDI bit is not mapped to memory
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.20.1