* [PATCH] dt-bindings: mux: reg-mux: Allow zero-cell controls
@ 2026-09-21 23:26 Rob Herring (Arm)
0 siblings, 0 replies; only message in thread
From: Rob Herring (Arm) @ 2026-09-21 23:26 UTC (permalink / raw)
To: Peter Rosin, Krzysztof Kozlowski, Conor Dooley; +Cc: devicetree, linux-kernel
Some reg-mux users reference a controller without an argument cell
when there is only one mux control exposed by the provider.
Permit #mux-control-cells to be either 0 or 1 so the converted schema
matches both existing provider styles.
Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
Documentation/devicetree/bindings/mux/reg-mux.yaml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mux/reg-mux.yaml b/Documentation/devicetree/bindings/mux/reg-mux.yaml
index dc4be092fc2f..c8de11a90d90 100644
--- a/Documentation/devicetree/bindings/mux/reg-mux.yaml
+++ b/Documentation/devicetree/bindings/mux/reg-mux.yaml
@@ -22,7 +22,7 @@ properties:
reg: true
'#mux-control-cells':
- const: 1
+ enum: [ 0, 1 ]
mux-reg-masks:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
--
2.53.0
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