linux-kernel - [PATCH v2] dt-bindings: leds: Allow differently named multicolor leds

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Message-Id: <20250412-multi-led-v2-1-56af86908744@posteo.net>
Date: Sat, 12 Apr 2025 15:04:32 +0200
From: J. Neuschäfer via B4 Relay <devnull+j.ne.posteo.net@...nel.org>
To: Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Andrew Davis <afd@...com>, 
 Pavel Machek <pavel@...nel.org>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 J. Neuschäfer <j.ne@...teo.net>
Subject: [PATCH v2] dt-bindings: leds: Allow differently named multicolor
 leds

From: "J. Neuschäfer" <j.ne@...teo.net>

In some cases, for example when using multiple instances of
leds-group-multicolor, a board may have multiple multi-leds which can't
be distinguished by unit address. In such cases it should be possible to
name them differently, for example multi-led-a and multi-led-b. This
patch adds another node name pattern to leds-class-multicolor.yaml to
allow such names.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
---
V2:
- Add Krzysztof's review tag
- mention leds-group-multicolor in the commit message
- rebase on 6.15-rc1

Link to v1: https://lore.kernel.org/r/20250209-multi-led-v1-1-5aebccbd2db7@posteo.net
---
 Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
index bb40bb9e036ee00e06d21e2321ecd5a7d471c408..c22af25b6430be71300c0e37f696cd61112ea190 100644
--- a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
@@ -21,7 +21,9 @@ description: |

 properties:
   $nodename:
-    pattern: "^multi-led(@[0-9a-f])?$"
+    oneOf:
+      - pattern: "^multi-led(@[0-9a-f])?$"
+      - pattern: "^multi-led-.*$"

   color:
     description: |

---
base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8
change-id: 20250209-multi-led-9991e205befd

Best regards,
-- 
J. Neuschäfer <j.ne@...teo.net>