Add support for an optional enable GPIO that allows the multiplexer
to be disabled.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
changes in v3:
 * new patch - extend gpio-mux instead of standalone driver approach
---
 Documentation/devicetree/bindings/mux/gpio-mux.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/mux/gpio-mux.yaml b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
index ef7e33ec85d4..199792d42323 100644
--- a/Documentation/devicetree/bindings/mux/gpio-mux.yaml
+++ b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
@@ -25,6 +25,13 @@ properties:
     description:
       List of gpios used to control the multiplexer, least significant bit first.
 
+  enable-gpios:
+    description:
+      Optional GPIO to enable the multiplexer. When present, the mux will be
+      disabled before changing address lines and re-enabled after to prevent
+      glitches. Required for MUX_IDLE_DISCONNECT idle-state.
+    maxItems: 1
+
   mux-supply:
     description:
       Regulator to power on the multiplexer.
-- 
2.43.0

On Thu, Jan 15, 2026 at 02:18:19PM +0200, Antoniu Miclaus wrote:
> Add support for an optional enable GPIO that allows the multiplexer
> to be disabled.
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
> ---
> changes in v3:
>  * new patch - extend gpio-mux instead of standalone driver approach
> ---
>  Documentation/devicetree/bindings/mux/gpio-mux.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mux/gpio-mux.yaml b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
> index ef7e33ec85d4..199792d42323 100644
> --- a/Documentation/devicetree/bindings/mux/gpio-mux.yaml
> +++ b/Documentation/devicetree/bindings/mux/gpio-mux.yaml
> @@ -25,6 +25,13 @@ properties:
>      description:
>        List of gpios used to control the multiplexer, least significant bit first.
>  
> +  enable-gpios:
> +    description:
> +      Optional GPIO to enable the multiplexer. When present, the mux will be
> +      disabled before changing address lines and re-enabled after to prevent
> +      glitches. Required for MUX_IDLE_DISCONNECT idle-state.

Where is any DTS user of such gpio-mux with enable-gpios?

Best regards,
Krzysztof