oxnas: use libata ledtrig support for kd20 hdd leds

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 43675

target/linux/oxnas/config-3.14

@@ -345,3 +345,4 @@ CONFIG_ZBOOT_ROM_TEXT=0
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZONE_DMA_FLAG=0
+CONFIG_ATA_LEDS=y

target/linux/oxnas/config-3.18

@@ -364,3 +364,4 @@ CONFIG_ZBOOT_ROM_TEXT=0
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZONE_DMA_FLAG=0
+CONFIG_ATA_LEDS=y

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

@@ -107,6 +107,7 @@
 		hdd1blue {
 			label = "kd20:blue:hdd1";
 			gpios = <&GPIOA 27 0>;
+			linux,default-trigger = "ata1";
 		};
 		hdd1red {
 			label = "kd20:red:hdd1";
@@ -115,6 +116,7 @@
 		hdd2blue {
 			label = "kd20:blue:hdd2";
 			gpios = <&GPIOB 6 0>;
+			linux,default-trigger = "ata2";
 		};
 		hdd2red {
 			label = "kd20:red:hdd2";

target/linux/oxnas/files/arch/arm/mach-oxnas/Kconfig

@@ -18,6 +18,7 @@ config MACH_OX820
 	select PINCTRL_OXNAS
 	select PINCTRL
 	select RESET_CONTROLLER_OXNAS
+	select ARCH_WANT_LIBATA_LEDS
 	help
 	  Include support for the ox820 platform.