ARM: Kirkwood: Add support thermal sensor for 88F6282 and 88F6283

Kirkwood 88F6282 and 88F6283 have a thermal sensor.
This patch adds a DT node and enables the driver in the kernel config.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-6282.dtsi

@@ -49,6 +49,12 @@
 			};
 		};
 
+		thermal@10078 {
+			compatible = "marvell,kirkwood-thermal";
+			reg = <0x10078 0x4>;
+			status = "okay";
+		};
+
 		i2c@11100 {
 			compatible = "marvell,mv64xxx-i2c";
 			reg = <0x11100 0x20>;

arch/arm/configs/kirkwood_defconfig

@@ -119,6 +119,8 @@ CONFIG_SPI=y
 CONFIG_SPI_ORION=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_KIRKWOOD_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_ORION_WATCHDOG=y
 CONFIG_HID_DRAGONRISE=y