linux-kernel - [PATCH v7 1/2] dt-bindings: mux: Remove nodename pattern constraints

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Message-ID: <dbe73c0777eca61cf14442f4082caae62b61805a.1769703480.git.tommaso.merciai.xr@bp.renesas.com>
Date: Thu, 29 Jan 2026 17:48:48 +0100
From: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
To: tomm.merciai@...il.com,
	p.zabel@...gutronix.de
Cc: linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Peter Rosin <peda@...ntia.se>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Uwe Kleine-König <ukleinek@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v7 1/2] dt-bindings: mux: Remove nodename pattern constraints

The nodename pattern in  created an unnecessary restriction that forced
all mux nodes to be named with the 'mux-controller' prefix.
This prevented valid use cases where mux functionality is part of other
hardware blocks that should use more specific naming conventions.

Remove the $nodename pattern constraints from both the 'select' keyword
and the properties section of the mux-controller schema.

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
---
v6->v7:
 - No changes.

v5->v6:
 - No changes.

v4->v5:
 - Added Reviewed-by tag from Conor Dooley.

v3->v4:
 - New patch.

 Documentation/devicetree/bindings/mux/mux-controller.yaml | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/mux/mux-controller.yaml b/Documentation/devicetree/bindings/mux/mux-controller.yaml
index 78340bbe4df6..6defb9da10f7 100644
--- a/Documentation/devicetree/bindings/mux/mux-controller.yaml
+++ b/Documentation/devicetree/bindings/mux/mux-controller.yaml
@@ -63,18 +63,12 @@ description: |
 
 select:
   anyOf:
-    - properties:
-        $nodename:
-          pattern: '^mux-controller'
     - required:
         - '#mux-control-cells'
     - required:
         - '#mux-state-cells'
 
 properties:
-  $nodename:
-    pattern: '^mux-controller(@.*|-([0-9]|[1-9][0-9]+))?$'
-
   '#mux-control-cells':
     enum: [ 0, 1 ]
 
-- 
2.43.0