1 files changed, 19 insertions, 19 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1117358256ba..83cac52308db 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -80,16 +80,16 @@ config ACPI_SLEEP_PROC_SLEEP
 config ACPI_AC
         tristate "AC Adapter"
         depends on X86
-        default m
+        default y
         help
           This driver adds support for the AC Adapter object, which indicates
-          whether a system is on AC, or not.  Typically, only mobile systems 
-          have this object, since desktops are always on AC.
+          whether a system is on AC, or not. If you have a system that can
+          switch between A/C and battery, say Y.
 
 config ACPI_BATTERY
         tristate "Battery"
         depends on X86
-        default m
+        default y
         help
           This driver adds support for battery information through
           /proc/acpi/battery. If you have a mobile system with a battery, 
@@ -97,18 +97,17 @@ config ACPI_BATTERY
 
 config ACPI_BUTTON
         tristate "Button"
-        default m
+        default y
         help
-          This driver registers for events based on buttons, such as the
-          power, sleep, and lid switch.  In the future, a daemon will read
-          /proc/acpi/event and perform user-defined actions such as shutting
-          down the system.  Until then, you can cat it, and see output when
-          a button is pressed.
+          This driver handles events on the power, sleep and lid buttons.
+          A daemon reads /proc/acpi/event and perform user-defined actions
+          such as shutting down the system.  This is necessary for
+          software controlled poweroff.
 
 config ACPI_VIDEO
         tristate "Video"
         depends on X86
-        default m
+        default y
         help
           This driver implement the ACPI Extensions For Display Adapters
           for integrated graphics devices on motherboard, as specified in
@@ -129,18 +128,19 @@ config ACPI_HOTKEY
 
 config ACPI_FAN
         tristate "Fan"
-        default m
+        default y
         help
           This driver adds support for ACPI fan devices, allowing user-mode 
           applications to perform basic fan control (on, off, status).
 
 config ACPI_PROCESSOR
         tristate "Processor"
-        default m
+        default y
         help
           This driver installs ACPI as the idle handler for Linux, and uses
           ACPI C2 and C3 processor states to save power, on systems that
-          support it.
+          support it.  It is required by several flavors of cpufreq
+          Performance-state drivers.
 
 config ACPI_HOTPLUG_CPU
         bool
@@ -151,7 +151,7 @@ config ACPI_HOTPLUG_CPU
 config ACPI_THERMAL
         tristate "Thermal Zone"
         depends on ACPI_PROCESSOR
-        default m
+        default y
         help
           This driver adds support for ACPI thermal zones.  Most mobile and
           some desktop systems support ACPI thermal zones.  It is HIGHLY
@@ -167,7 +167,7 @@ config ACPI_NUMA
 config ACPI_ASUS
         tristate "ASUS/Medion Laptop Extras"
         depends on X86
-        default m
+        default y
         ---help---
           This driver provides support for extra features of ACPI-compatible
           ASUS laptops. As some of Medion laptops are made by ASUS, it may also
@@ -196,7 +196,7 @@ config ACPI_ASUS
 config ACPI_IBM
         tristate "IBM ThinkPad Laptop Extras"
         depends on X86
-        default m
+        default y
         ---help---
           This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
           support for Fn-Fx key combinations, Bluetooth control, video
@@ -209,7 +209,7 @@ config ACPI_IBM
 config ACPI_TOSHIBA
         tristate "Toshiba Laptop Extras"
         depends on X86
-        default m
+        default y
         ---help---
           This driver adds support for access to certain system settings
           on "legacy free" Toshiba laptops.  These laptops can be recognized by
@@ -296,7 +296,7 @@ config X86_PM_TIMER
         bool "Power Management Timer Support"
         depends on X86
         depends on !X86_64
-        default n
+        default y
         help
           The Power Management Timer is available on all ACPI-capable,
           in most cases even if ACPI is unusable or blacklisted.