linux-kernel - [PATCH 5/7] ARM: dts: exynos: k3g: Add notification LED support

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Message-ID: <20230716220644.22158-7-markuss.broks@gmail.com>
Date:   Mon, 17 Jul 2023 01:05:07 +0300
From:   Markuss Broks <markuss.broks@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Markuss Broks <markuss.broks@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] ARM: dts: exynos: k3g: Add notification LED support

This device has a Texas Instruments LP5562 LED controller
which controls the LEDs which are used as notification lights.
It has three colors which can be combined, supports pulse mode
and other various features.

Signed-off-by: Markuss Broks <markuss.broks@...il.com>
---
 arch/arm/boot/dts/exynos5422-samsung-k3g.dts | 47 ++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5422-samsung-k3g.dts b/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
index b3576a745054..813dbf0438de 100644
--- a/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
+++ b/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
@@ -10,6 +10,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
 #include "exynos5800.dtsi"
 #include "exynos5422-cpus.dtsi"
 
@@ -131,6 +132,52 @@ touchkey@20 {
 		};
 	};
 
+	i2c-led {
+		compatible = "i2c-gpio";
+
+		sda-gpios = <&gpy3 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpy3 7 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		i2c-gpio,delay-us = <2>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		lp5562@30 {
+			compatible = "ti,lp5562";
+			reg = <0x30>;
+
+			clock-mode = /bits/ 8 <2>;
+			label = "notification-leds";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			led@0 {
+				reg = <0>;
+				chan-name = "notification-red";
+				color = <LED_COLOR_ID_RED>;
+				led-cur = /bits/ 8 <0x40>;
+				max-cur = /bits/ 8 <0x40>;
+			};
+
+			led@1 {
+				reg = <1>;
+				chan-name = "notification-green";
+				color = <LED_COLOR_ID_GREEN>;
+				led-cur = /bits/ 8 <0x40>;
+				max-cur = /bits/ 8 <0x40>;
+			};
+
+			led@2 {
+				reg = <2>;
+				chan-name = "notification-blue";
+				color = <LED_COLOR_ID_BLUE>;
+				led-cur = /bits/ 8 <0x40>;
+				max-cur = /bits/ 8 <0x40>;
+			};
+		};
+	};
+
 	tsp_vdd: regulator-tsp-vdd-en {
 		compatible = "regulator-fixed";
 		regulator-name = "tsp_vdd_en";
-- 
2.41.0