ARM: dts: imx6qdl-hummingboard2: add PWM3 support

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-hummingboard2.dtsi

@@ -361,6 +361,12 @@ MX6QDL_PAD_DISP0_DAT8__PWM1_OUT 0x1b0b1
 			>;
 		};
 
+		pinctrl_hummingboard2_pwm3: pwm3grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
+			>;
+		};
+
 		pinctrl_hummingboard2_sgtl5000: hummingboard2-sgtl5000 {
 			fsl,pins = <
 				MX6QDL_PAD_DISP0_DAT19__AUD5_RXD 0x130b0
@@ -463,6 +469,12 @@ &pwm1 {
 	status = "okay";
 };
 
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hummingboard2_pwm3>;
+	status = "okay";
+};
+
 &ssi1 {
 	status = "okay";
 };