[PATCH v4 0/2] mux: gpio-mux: add enable GPIO support

From: Antoniu Miclaus

Date: Fri Jan 16 2026 - 10:38:20 EST


This series adds optional enable GPIO support to the gpio-mux driver.
The enable GPIO allows the multiplexer to be disabled before changing
address lines and re-enabled after, preventing glitches that could
briefly activate unintended channels during transitions.

This feature is useful for devices like the Analog Devices ADG2404
(4:1 mux) that require enable control for glitch-free operation. The
binding documentation now includes ADG2404 as a supported device with
a dedicated example.

Changes in v4:
* Remove device-specific compatible (adi,adg2404) per reviewer feedback
* Use generic gpio-mux compatible for all GPIO-based muxes
* Add ADG2404 to binding description for discoverability
* Add dedicated ADG2404 example in binding
* Update commit messages to reference ADG2404 as a use case

Antoniu Miclaus (2):
dt-bindings: mux: gpio-mux: add enable-gpios support
mux: gpio-mux: add support for enable GPIO

.../devicetree/bindings/mux/gpio-mux.yaml | 25 +++++++++++++++
drivers/mux/gpio.c | 32 ++++++++++++++++++-
2 files changed, 56 insertions(+), 1 deletion(-)

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2.43.0