linux-kernel - [PATCH 1/2] dt-bindings: mux: Add description for enable GPIO

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Message-Id: <20251105-add-external-mux-enable-gpio-v1-1-e59cba6f9e47@vaisala.com>
Date: Wed, 05 Nov 2025 14:49:12 +0000
From: Tapio Reijonen <tapio.reijonen@...sala.com>
To: Peter Rosin <peda@...ntia.se>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Tapio Reijonen <tapio.reijonen@...sala.com>
Subject: [PATCH 1/2] dt-bindings: mux: Add description for enable GPIO

Add description for enabling GPIO-controlled multiplexer
GPIO pins, according to the state of the mux idle state.

Signed-off-by: Tapio Reijonen <tapio.reijonen@...sala.com>
---
 Documentation/devicetree/bindings/mux/gpio-mux.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mux/gpio-mux.yaml b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
index ef7e33ec85d479ce57c5fe4a780f81a08a6ab6ba..5fb26f4b65d5a24747e515f6ce358eecc36f182f 100644
--- a/Documentation/devicetree/bindings/mux/gpio-mux.yaml
+++ b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
@@ -29,6 +29,11 @@ properties:
     description:
       Regulator to power on the multiplexer.
 
+  enable-gpios:
+    description:
+      External gpio output that signals mux-gpios are in a valid state.
+      Logic low when state of the mux is idle, high otherwise.
+
   '#mux-control-cells':
     enum: [ 0, 1 ]
 

-- 
2.47.3