arm64: dts: Add ADI device node for Spreadtrum SC9860

We will access the PMIC through ADI controller, thus this patch adds
the ADI device node for Spreadtrum SC9860 platform.
Signed-off-by: NBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/sprd/sp9860g-1h10.dts

@@ -20,6 +20,7 @@
 		serial1 = &uart1; /* UART console */
 		serial2 = &uart2; /* Reserved */
 		serial3 = &uart3; /* for GPS */
+		spi0 = &adi_bus;
 	};
 
 	memory{

arch/arm64/boot/dts/sprd/whale2.dtsi

@@ -113,6 +113,15 @@
 			#size-cells = <2>;
 			ranges;
 
+			adi_bus: spi@40030000 {
+				compatible = "sprd,sc9860-adi";
+				reg = <0 0x40030000 0 0x10000>;
+				hwlocks = <&hwlock 0>;
+				hwlock-names = "adi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
 			hwlock: hwspinlock@40500000 {
 				compatible = "sprd,hwspinlock-r3p0";
 				reg = <0 0x40500000 0 0x1000>;