linux-kernel - [PATCH v4 5/5] arm64: dts: Add LP5812 LED node for Raspberry Pi 4 Model B

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Message-Id: <20250405183246.198568-6-trannamatk@gmail.com>
Date: Sun,  6 Apr 2025 01:32:46 +0700
From: Nam Tran <trannamatk@...il.com>
To: pavel@...nel.org,
	lee@...nel.org,
	krzk+dt@...nel.org,
	robh@...nel.org,
	conor+dt@...nel.org,
	corbet@....net
Cc: devicetree@...r.kernel.org,
	linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nam Tran <trannamatk@...il.com>
Subject: [PATCH v4 5/5] arm64: dts: Add LP5812 LED node for Raspberry Pi 4 Model B

Add the LP5812 LED driver node to the Device Tree for Raspberry Pi 4 B.
This enables the LED connected to the LP5812 to be controlled via I2C.

Signed-off-by: Nam Tran <trannamatk@...il.com>
---
 .../arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts
index 353bb50ce542..511d358f7692 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts
@@ -152,6 +152,66 @@ &hdmi1 {
 	status = "okay";
 };
 
+&i2c1 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		led-controller@1b {
+				compatible = "ti,lp5812";
+				reg = <0x1b>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				led@0 {
+						reg = <0x0>;
+						chan-name = "a0";
+				};
+				led@1 {
+						reg = <0x1>;
+						chan-name = "a1";
+				};
+				led@2 {
+						reg = <0x2>;
+						chan-name = "a2";
+				};
+				led@3 {
+						reg = <0x3>;
+						chan-name = "b0";
+				};
+				led@4 {
+						reg = <0x4>;
+						chan-name = "b1";
+				};
+				led@5 {
+						reg = <0x5>;
+						chan-name = "b2";
+				};
+				led@6 {
+						reg = <0x6>;
+						chan-name = "c0";
+				};
+				led@7 {
+						reg = <0x7>;
+						chan-name = "c1";
+				};
+				led@8 {
+						reg = <0x8>;
+						chan-name = "c2";
+				};
+				led@9 {
+						reg = <0x9>;
+						chan-name = "d0";
+				};
+				led@a {
+						reg = <0xa>;
+						chan-name = "d1";
+				};
+				led@b {
+						reg = <0xb>;
+						chan-name = "d2";
+				};
+		};
+};
+
 &led_act {
 	gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 };
-- 
2.25.1