ARM: dts: Enable audio support for exynos5800-peach-pi

Peach-pi board has MAX98091 audio codec connected on HSI2C-7 bus.
Signed-off-by: NTushar Behera <tushar.b@samsung.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5800-peach-pi.dts

@@ -57,6 +57,13 @@
 		pinctrl-names = "default";
 	};
 
+	sound {
+		compatible = "google,snow-audio-max98091";
+
+		samsung,i2s-controller = <&i2s0>;
+		samsung,audio-codec = <&max98091>;
+	};
+
 	usb300_vbus_reg: regulator-usb300 {
 		compatible = "regulator-fixed";
 		regulator-name = "P5.0V_USB3CON0";
@@ -81,6 +88,13 @@
 };
 
 &pinctrl_0 {
+	max98091_irq: max98091-irq {
+		samsung,pins = "gpx0-2";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	tpm_irq: tpm-irq {
 		samsung,pins = "gpx1-0";
 		samsung,pin-function = <0>;
@@ -207,6 +221,19 @@
 	samsung,invert-vclk;
 };
 
+&hsi2c_7 {
+	status = "okay";
+
+	max98091: codec@10 {
+		compatible = "maxim,max98091";
+		reg = <0x10>;
+		interrupts = <2 0>;
+		interrupt-parent = <&gpx0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&max98091_irq>;
+	};
+};
+
 &hsi2c_9 {
 	status = "okay";
 	clock-frequency = <400000>;
@@ -251,3 +278,7 @@
 &watchdog {
 	timeout-sec = <32>;
 };
+
+&i2s0 {
+	status = "okay";
+};