oxnas/kd20: use gpio-beeper

gpio-beeper module was added to the kernel recently.
Make use of it to drive the piezoelectric buzzer of the kd20.

Signed-off-by: Daniel Golle <[email protected]>

SVN-Revision: 43496

target/linux/oxnas/files/arch/arm/boot/dts/ox820-kd20.dts

@@ -123,10 +123,11 @@
 			label = "kd20:blue:usb";
 			gpios = <&GPIOB 8 0>;
 		};
-		buzzer {
-			label = "kd20:buzzer";
-			gpios = <&GPIOB 11 0>;
-		};
+	};
+
+	beeper: beeper {
+		compatible = "gpio-beeper";
+		gpios = <&GPIOB 11 0>;
 	};
 
 	gpio-fan {

target/linux/oxnas/profiles/100-Generic.mk

@@ -40,7 +40,7 @@ endef
 define Profile/KD20
   NAME:=Shuttle KD20
   PACKAGES:= \
-	uboot-envtools kmod-usb2-oxnas kmod-usb3 kmod-rtc-pcf8563
+	uboot-envtools kmod-usb2-oxnas kmod-usb3 kmod-rtc-pcf8563 kmod-gpio-beeper
 endef
 
 define Profile/KD20/Description