Thread (19 messages) 19 messages, 3 authors, 2026-01-16

Re: [PATCH v3 1/4] dt-bindings: mux: gpio-mux: add enable-gpios support

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2026-01-16 08:30:59
Also in: lkml

On Thu, Jan 15, 2026 at 02:18:19PM +0200, Antoniu Miclaus wrote:
quoted hunk ↗ jump to hunk
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
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