linux-kernel - [PATCH] arm64: dts: imx8mp-evk: Add GPIO LED support

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Message-Id: <1582002899-21391-1-git-send-email-Anson.Huang@nxp.com>
Date:   Tue, 18 Feb 2020 13:14:59 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] arm64: dts: imx8mp-evk: Add GPIO LED support

i.MX8MP EVK board has a GPIO LED to indicate status, add support for it.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 6df3beb..a97a03c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -15,6 +15,18 @@
 		stdout-path = &uart2;
 	};
 
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_led>;
+
+		status {
+			label = "yellow:status";
+			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+	};
+
 	memory@...00000 {
 		device_type = "memory";
 		reg = <0x0 0x40000000 0 0xc0000000>,
@@ -120,6 +132,12 @@
 		>;
 	};
 
+	pinctrl_gpio_led: gpioledgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16	0x19
+		>;
+	};
+
 	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmc {
 		fsl,pins = <
 			MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19	0x41
-- 
2.7.4