ARM: at91: at91sam9n12: add qt1070 support

Add qt1070 support on at91sam9n12ek board.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91sam9n12ek.dts

@@ -40,6 +40,15 @@
 
 			i2c0: i2c@f8010000 {
 				status = "okay";
+
+				qt1070: keyboard@1b {
+					compatible = "qt1070";
+					reg = <0x1b>;
+					interrupt-parent = <&pioA>;
+					interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_qt1070_irq>;
+				};
 			};
 
 			i2c1: i2c@f8014000 {
@@ -66,6 +75,13 @@
 							<AT91_PIOA 7 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;	/* PA7 gpio CD pin pull up and deglitch */
 					};
 				};
+
+				qt1070 {
+					pinctrl_qt1070_irq: qt1070_irq {
+						atmel,pins =
+							<AT91_PIOA 2 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+				};
 			};
 
 			spi0: spi@f0000000 {