ARM: dts: imx6qdl-gw553x: add lsm9ds1 iio imu/magn support

Add one node for the accel/gyro i2c device and another for the separate
magnetometer device in the lsm9ds1.

Signed-off-by: Robert Jones <rjones@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-gw553x.dtsi

@@ -173,6 +173,25 @@
 	pinctrl-0 = <&pinctrl_i2c2>;
 	status = "okay";
 
+	magn@1c {
+		compatible = "st,lsm9ds1-magn";
+		reg = <0x1c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_mag>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <2 IRQ_TYPE_EDGE_RISING>;
+	};
+
+	imu@6a {
+		compatible = "st,lsm9ds1-imu";
+		reg = <0x6a>;
+		st,drdy-int-pin = <1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_imu>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	ltc3676: pmic@3c {
 		compatible = "lltc,ltc3676";
 		reg = <0x3c>;
@@ -426,6 +445,12 @@
 		>;
 	};
 
+	pinctrl_imu: imugrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_18__GPIO7_IO13		0x1b0b0
+		>;
+	};
+
 	pinctrl_ipu1_csi0: ipu1csi0grp {
 		fsl,pins = <
 			MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12    0x1b0b0
@@ -449,6 +474,12 @@
 		>;
 	};
 
+	pinctrl_mag: maggrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x1b0b0
+		>;
+	};
+
 	pinctrl_pcie: pciegrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_0__GPIO1_IO00		0x1b0b0