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Subject[PATCH 3/5] PM: Reorder power management Kconfig options
Date
From: Rafael J. Wysocki <rjw@sisk.pl>

Reorder configuration options in kernel/power/Kconfig so that
the options depended on are at the top of the list.

This patch doesn't introduce any functional changes.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
kernel/power/Kconfig | 222 +++++++++++++++++++++++++--------------------------
1 file changed, 111 insertions(+), 111 deletions(-)
Index: linux-2.6/kernel/power/Kconfig
===================================================================
--- linux-2.6.orig/kernel/power/Kconfig
+++ linux-2.6/kernel/power/Kconfig
@@ -1,89 +1,3 @@
-config PM
- bool
- depends on PM_SLEEP || PM_RUNTIME
- default y
-
-config PM_DEBUG
- bool "Power Management Debug Support"
- depends on PM
- ---help---
- This option enables various debugging support in the Power Management
- code. This is helpful when debugging and reporting PM bugs, like
- suspend support.
-
-config PM_ADVANCED_DEBUG
- bool "Extra PM attributes in sysfs for low-level debugging/testing"
- depends on PM_DEBUG
- default n
- ---help---
- Add extra sysfs attributes allowing one to access some Power Management
- fields of device objects from user space. If you are not a kernel
- developer interested in debugging/testing Power Management, say "no".
-
-config PM_VERBOSE
- bool "Verbose Power Management debugging"
- depends on PM_DEBUG
- default n
- ---help---
- This option enables verbose messages from the Power Management code.
-
-config CAN_PM_TRACE
- def_bool y
- depends on PM_DEBUG && PM_SLEEP && EXPERIMENTAL
-
-config PM_TRACE
- bool
- help
- This enables code to save the last PM event point across
- reboot. The architecture needs to support this, x86 for
- example does by saving things in the RTC, see below.
-
- The architecture specific code must provide the extern
- functions from <linux/resume-trace.h> as well as the
- <asm/resume-trace.h> header with a TRACE_RESUME() macro.
-
- The way the information is presented is architecture-
- dependent, x86 will print the information during a
- late_initcall.
-
-config PM_TRACE_RTC
- bool "Suspend/resume event tracing"
- depends on CAN_PM_TRACE
- depends on X86
- select PM_TRACE
- default n
- ---help---
- This enables some cheesy code to save the last PM event point in the
- RTC across reboots, so that you can debug a machine that just hangs
- during suspend (or more commonly, during resume).
-
- To use this debugging feature you should attempt to suspend the
- machine, reboot it and then run
-
- dmesg -s 1000000 | grep 'hash matches'
-
- CAUTION: this option will cause your machine's real-time clock to be
- set to an invalid time after a resume.
-
-config PM_SLEEP_SMP
- bool
- depends on SMP
- depends on ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
- depends on PM_SLEEP
- select HOTPLUG
- select HOTPLUG_CPU
- default y
-
-config PM_SLEEP
- bool
- depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
- default y
-
-config PM_SLEEP_ADVANCED_DEBUG
- bool
- depends on PM_ADVANCED_DEBUG
- default n
-
config SUSPEND
bool "Suspend to RAM and standby"
depends on ARCH_SUSPEND_POSSIBLE
@@ -93,17 +7,6 @@ config SUSPEND
powered and thus its contents are preserved, such as the
suspend-to-RAM state (e.g. the ACPI S3 state).

-config PM_TEST_SUSPEND
- bool "Test suspend/resume and wakealarm during bootup"
- depends on SUSPEND && PM_DEBUG && RTC_CLASS=y
- ---help---
- This option will let you suspend your machine during bootup, and
- make it wake up a few seconds later using an RTC wakeup alarm.
- Enable this with a kernel parameter like "test_suspend=mem".
-
- You probably want to have your system's RTC driver statically
- linked, ensuring that it's available when this test runs.
-
config SUSPEND_FREEZER
bool "Enable freezer for suspend to RAM/standby" \
if ARCH_WANTS_FREEZER_CONTROL || BROKEN
@@ -180,6 +83,117 @@ config PM_STD_PARTITION
suspended image to. It will simply pick the first available swap
device.

+config PM_SLEEP
+ bool
+ depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
+ default y
+
+config PM_SLEEP_SMP
+ bool
+ depends on SMP
+ depends on ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
+ depends on PM_SLEEP
+ select HOTPLUG
+ select HOTPLUG_CPU
+ default y
+
+config PM_RUNTIME
+ bool "Run-time PM core functionality"
+ depends on !IA64_HP_SIM
+ ---help---
+ Enable functionality allowing I/O devices to be put into energy-saving
+ (low power) states at run time (or autosuspended) after a specified
+ period of inactivity and woken up in response to a hardware-generated
+ wake-up event or a driver's request.
+
+ Hardware support is generally required for this functionality to work
+ and the bus type drivers of the buses the devices are on are
+ responsible for the actual handling of the autosuspend requests and
+ wake-up events.
+
+config PM
+ bool
+ depends on PM_SLEEP || PM_RUNTIME
+ default y
+
+config PM_DEBUG
+ bool "Power Management Debug Support"
+ depends on PM
+ ---help---
+ This option enables various debugging support in the Power Management
+ code. This is helpful when debugging and reporting PM bugs, like
+ suspend support.
+
+config PM_VERBOSE
+ bool "Verbose Power Management debugging"
+ depends on PM_DEBUG
+ default n
+ ---help---
+ This option enables verbose messages from the Power Management code.
+
+config PM_ADVANCED_DEBUG
+ bool "Extra PM attributes in sysfs for low-level debugging/testing"
+ depends on PM_DEBUG
+ default n
+ ---help---
+ Add extra sysfs attributes allowing one to access some Power Management
+ fields of device objects from user space. If you are not a kernel
+ developer interested in debugging/testing Power Management, say "no".
+
+config PM_SLEEP_ADVANCED_DEBUG
+ bool
+ depends on PM_ADVANCED_DEBUG
+ default n
+
+config PM_TEST_SUSPEND
+ bool "Test suspend/resume and wakealarm during bootup"
+ depends on SUSPEND && PM_DEBUG && RTC_CLASS=y
+ ---help---
+ This option will let you suspend your machine during bootup, and
+ make it wake up a few seconds later using an RTC wakeup alarm.
+ Enable this with a kernel parameter like "test_suspend=mem".
+
+ You probably want to have your system's RTC driver statically
+ linked, ensuring that it's available when this test runs.
+
+config CAN_PM_TRACE
+ def_bool y
+ depends on PM_DEBUG && PM_SLEEP && EXPERIMENTAL
+
+config PM_TRACE
+ bool
+ help
+ This enables code to save the last PM event point across
+ reboot. The architecture needs to support this, x86 for
+ example does by saving things in the RTC, see below.
+
+ The architecture specific code must provide the extern
+ functions from <linux/resume-trace.h> as well as the
+ <asm/resume-trace.h> header with a TRACE_RESUME() macro.
+
+ The way the information is presented is architecture-
+ dependent, x86 will print the information during a
+ late_initcall.
+
+config PM_TRACE_RTC
+ bool "Suspend/resume event tracing"
+ depends on CAN_PM_TRACE
+ depends on X86
+ select PM_TRACE
+ default n
+ ---help---
+ This enables some cheesy code to save the last PM event point in the
+ RTC across reboots, so that you can debug a machine that just hangs
+ during suspend (or more commonly, during resume).
+
+ To use this debugging feature you should attempt to suspend the
+ machine, reboot it and then run
+
+ dmesg -s 1000000 | grep 'hash matches'
+
+ CAUTION: this option will cause your machine's real-time clock to be
+ set to an invalid time after a resume.
+
config APM_EMULATION
tristate "Advanced Power Management Emulation"
depends on PM && SYS_SUPPORTS_APM_EMULATION
@@ -206,20 +220,6 @@ config APM_EMULATION
anything, try disabling/enabling this option (or disabling/enabling
APM in your BIOS).

-config PM_RUNTIME
- bool "Run-time PM core functionality"
- depends on !IA64_HP_SIM
- ---help---
- Enable functionality allowing I/O devices to be put into energy-saving
- (low power) states at run time (or autosuspended) after a specified
- period of inactivity and woken up in response to a hardware-generated
- wake-up event or a driver's request.
-
- Hardware support is generally required for this functionality to work
- and the bus type drivers of the buses the devices are on are
- responsible for the actual handling of the autosuspend requests and
- wake-up events.
-
config PM_OPS
bool
depends on PM_SLEEP || PM_RUNTIME


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