[PATCH V2] arm64: dts: imx8mn-ddr4-evk: Enable GPIO LED

[Anson Huang]

i.MX8MN DDR4 EVK board has a GPIO LED to indicate status,
add support for it.

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
Changes since V1:
        - Mention color in the label.
---
 arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts 
b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
index b698061..bf1c097 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-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";
+               };
+       };
+
        reg_usdhc2_vmmc: regulator-usdhc2 {
                compatible = "regulator-fixed";
                pinctrl-names = "default";
@@ -54,6 +66,12 @@
                >;
        };
 
+       pinctrl_gpio_led: gpioledgrp {
+               fsl,pins = <
+                       MX8MN_IOMUXC_NAND_READY_B_GPIO3_IO16    0x19
+               >;
+       };
+
        pinctrl_i2c1: i2c1grp {
                fsl,pins = <
                        MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL          0x400001c3
-- 
2.7.4