ARM: dts: apq8064: add i2c6 device node.

This patch adds i2c6 device node and pinctrls required for IFC6410 on
MIPI-CSI connector.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

arch/arm/boot/dts/qcom-apq8064-pins.dtsi

@@ -153,6 +153,31 @@ pinconf {
 		};
 	};
 
+	i2c6_pins: i2c6 {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "gsbi6";
+		};
+
+		pinconf {
+			pins = "gpio16", "gpio17";
+			drive-strength = <16>;
+			bias-disable;
+		};
+	};
+
+	i2c6_pins_sleep: i2c6_pins_sleep {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "gpio";
+		};
+		pinconf {
+			pins = "gpio16", "gpio17";
+			drive-strength = <2>;
+			bias-disable = <0>;
+		};
+	};
+
 	gsbi6_uart_2pins: gsbi6_uart_2pins {
 		mux {
 			pins = "gpio14", "gpio15";

arch/arm/boot/dts/qcom-apq8064.dtsi

@@ -367,6 +367,17 @@ gsbi6_serial: serial@16540000 {
 				clock-names = "core", "iface";
 				status = "disabled";
 			};
+
+			gsbi6_i2c: i2c@16580000 {
+				compatible = "qcom,i2c-qup-v1.1.1";
+				pinctrl-0 = <&i2c6_pins &i2c6_pins_sleep>;
+				pinctrl-names = "default", "sleep";
+				reg = <0x16580000 0x1000>;
+				interrupts = <GIC_SPI 157 IRQ_TYPE_NONE>;
+				clocks = <&gcc GSBI6_QUP_CLK>,
+					 <&gcc GSBI6_H_CLK>;
+				clock-names = "core", "iface";
+			};
 		};
 
 		gsbi7: gsbi@16600000 {