[ACPI] remove "default m" from acpi/Kconfig
Andi Kleen suggested it was unconventional for us to "default m"
on ACPI modules -- even though they are expected to be deployed
as modules. But as "default n" would likely result in some
users building nonsense kernels, we compromise to "default y".
Distros are expected to continue to use =m in their configs.
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1117358..83cac52 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -80,16 +80,16 @@
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_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_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_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_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_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_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 @@
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.