linux-kernel - [PATCH 0/2] mux: gpio: Add external mux enable gpio

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Message-Id: <20251105-add-external-mux-enable-gpio-v1-0-e59cba6f9e47@vaisala.com>
Date: Wed, 05 Nov 2025 14:49:11 +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 0/2] mux: gpio: Add external mux enable gpio

The output state of a mux might be misinterpreted
during transition from one state to another.
Using a dedicated optional gpio pin, the validity
of the mux state can be communicated to connected devices.
 
This series adds support for defining the optional
gpio pin for this purpose, along with documentation.

Signed-off-by: Tapio Reijonen <tapio.reijonen@...sala.com>
---
Tapio Reijonen (2):
      dt-bindings: mux: Add description for enable GPIO
      mux: gpio: Add external mux enable gpio

 .../devicetree/bindings/mux/gpio-mux.yaml          |  5 ++++
 drivers/mux/gpio.c                                 | 30 +++++++++++++++++-----
 2 files changed, 29 insertions(+), 6 deletions(-)
---
base-commit: e53642b87a4f4b03a8d7e5f8507fc3cd0c595ea6
change-id: 20250925-add-external-mux-enable-gpio-c9ba5beddd49

Best regards,
-- 
Tapio Reijonen <tapio.reijonen@...sala.com>