mach-rk2818/Kconfig: 修订USB唤醒说明

diff --git a/arch/arm/mach-rk2818/Kconfig b/arch/arm/mach-rk2818/Kconfig
index 80f6dc76efd7ca6c3f73de0332a6490fbff563d9..85029522c4e3f41a91a3788c734e34be2abaa4ac 100644 (file)
--- a/arch/arm/mach-rk2818/Kconfig
+++ b/arch/arm/mach-rk2818/Kconfig
@@ -47,8 +47,8 @@ config RK28_USB_WAKE
        depends on ARCH_RK2818 && PM
        default y
        help
-         Select this option if you want to have your system wake up
-         from USB.
+         Select this option if you want to have your system wake up from USB.
+         This will poll usb every second while suspend, so consumes more power.
 
 config WIFI_CONTROL_FUNC
         bool "Enable WiFi control function abstraction"