linux-kernel - [PATCH v2] arm64: dts: freescale: debix-som: Add heartbeat LED

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Message-Id: <20231101104307.2207938-1-kieran.bingham@ideasonboard.com>
Date:   Wed,  1 Nov 2023 10:43:04 +0000
From:   Kieran Bingham <kieran.bingham@...asonboard.com>
To:     devicetree@...r.kernel.org
Cc:     Kieran Bingham <kieran.bingham@...asonboard.com>,
        Marco Felsch <m.felsch@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX
        / MXC ARM ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2] arm64: dts: freescale: debix-som: Add heartbeat LED

Map the 'RUN' LED present on the Debix-SOM as a heartbeat.

Reviewed-by: Marco Felsch <m.felsch@...gutronix.de>
Signed-off-by: Kieran Bingham <kieran.bingham@...asonboard.com>
---

v2:
 - Fix label
 - Correct color and function
 - Collect RB tag

 .../dts/freescale/imx8mp-debix-som-a.dtsi     | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi
index bc312aa1bfc8..91094c227744 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi
@@ -6,6 +6,8 @@
 
 #include "imx8mp.dtsi"
 
+#include <dt-bindings/leds/common.h>
+
 / {
 	model = "Polyhex i.MX8MPlus Debix SOM A";
 	compatible = "polyhex,imx8mp-debix-som-a", "fsl,imx8mp";
@@ -20,6 +22,20 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_led>;
+
+		led-0 {
+			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+		};
+	};
 };
 
 &A53_0 {
@@ -203,6 +219,12 @@ &wdog1 {
 };
 
 &iomuxc {
+	pinctrl_gpio_led: gpioledgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16		0x19
+		>;
+	};
+
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL			0x400001c2
-- 
2.34.1