linux-kernel - [PATCH v8 5/5] arm64: dts: Add LP5812 node for Raspberry Pi 4 Model B

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Message-Id: <20250427082447.138359-6-trannamatk@gmail.com>
Date: Sun, 27 Apr 2025 15:24:47 +0700
From: Nam Tran <trannamatk@...il.com>
To: andy@...nel.org
Cc: geert@...ux-m68k.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	christophe.jaillet@...adoo.fr,
	corbet@....net,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	florian.fainelli@...adcom.com,
	bcm-kernel-feedback-list@...adcom.com,
	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Nam Tran <trannamatk@...il.com>
Subject: [PATCH v8 5/5] arm64: dts: Add LP5812 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>
---
 arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts | 10 ++++++++++
 1 file changed, 10 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..2f058cf5d76e 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 +152,16 @@ &hdmi1 {
 	status = "okay";
 };
 
+&i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	led-controller@1b {
+		compatible = "ti,lp5812";
+		reg = <0x1b>;
+	};
+};
+
 &led_act {
 	gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 };
-- 
2.25.1