linux-kernel - [PATCH v7 2/2] dt-bindings: leds: lp50xx: Document child reg, fix example

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Message-ID: <20250617-led-fix-v7-2-cdbe8efc88fa@axis.com>
Date: Tue, 17 Jun 2025 12:23:55 +0200
From: Johan Adolfsson <johan.adolfsson@...s.com>
To: Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>, Rob Herring
	<robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	<conor+dt@...nel.org>, Andrew Davis <afd@...com>, Jacek Anaszewski
	<jacek.anaszewski@...il.com>
CC: <linux-leds@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, Johan Adolfsson <johan.adolfsson@...s.com>,
	<kernel@...s.com>
Subject: [PATCH v7 2/2] dt-bindings: leds: lp50xx: Document child reg, fix
 example

The led child reg node is the index within the bank, document that
and update the example accordingly.
The reg property in child node is limited to 0-2 since there are 3 leds
per bank, previous value in example was speculative.

Signed-off-by: Johan Adolfsson <johan.adolfsson@...s.com>
---
 .../devicetree/bindings/leds/leds-lp50xx.yaml         | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
index 402c25424525..23f809906ba7 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
@@ -81,7 +81,12 @@ patternProperties:
 
         properties:
           reg:
-            maxItems: 1
+            items:
+              - minimum: 0
+                maximum: 2
+
+            description:
+              This property denotes the index within the LED bank.
 
         required:
           - reg
@@ -138,18 +143,18 @@ examples:
                 color = <LED_COLOR_ID_RGB>;
                 function = LED_FUNCTION_STANDBY;
 
-                led@3 {
-                    reg = <0x3>;
+                led@0 {
+                    reg = <0x0>;
                     color = <LED_COLOR_ID_RED>;
                 };
 
-                led@4 {
-                    reg = <0x4>;
+                led@1 {
+                    reg = <0x1>;
                     color = <LED_COLOR_ID_GREEN>;
                 };
 
-                led@5 {
-                    reg = <0x5>;
+                led@2 {
+                    reg = <0x2>;
                     color = <LED_COLOR_ID_BLUE>;
                 };
             };

-- 
2.30.2