linux-kernel - [PATCH RFC v4 2/2] dt-bindings: leds: lp50xx: Document child reg, fix example

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Message-ID: <20250526-led-fix-v4-2-33345f6c4a78@axis.com>
Date: Mon, 26 May 2025 16:54:01 +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 RFC v4 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.

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..a7b2d87cc39d 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
+            minimum: 0
+            maximum: 2
+            description:
+              This property denotes the index within the LED bank.
+              The value will act as the index in the multi_index file to give
+              consistent result independent of devicetree processing order.
 
         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