Thread (22 messages) 22 messages, 4 authors, 2023-02-13
STALE1239d
Revisions (6)
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[PATCH v4 1/5] dt-bindings: watchdog: mt7621-wdt: add phandle to access system controller registers

From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: 2023-02-11 07:34:10
Also in: linux-mips, linux-watchdog, lkml
Subsystem: open firmware and flattened device tree bindings, the rest, watchdog device drivers · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Wim Van Sebroeck, Guenter Roeck

MT7621 SoC provides a system controller node for accessing to some registers.
Add a phandle in this node to avoid using MIPS related arch operations and
includes in watchdog driver code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
---
 .../devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml  | 7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
index b2b17fdf4..a668d0c2f 100644
--- a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
@@ -19,6 +19,12 @@ properties:
   reg:
     maxItems: 1
 
+  mediatek,sysctl:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to system controller 'sysc' syscon node which
+      controls system registers
+
 required:
   - compatible
   - reg
@@ -30,4 +36,5 @@ examples:
     watchdog@100 {
       compatible = "mediatek,mt7621-wdt";
       reg = <0x100 0x100>;
+      mediatek,sysctl = <&sysc>;
     };
-- 
2.25.1
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