Eric Lee / smarc-fsl-linux-kernel

09 May, 2007

1 commit

  • 5b7952021   Documentation: Ask driver writers to provide PM support ... Browse Code »

    Add a paragraph in Documentation/SubmittingDrivers requesting that the
    basic PM support be provided by new device drivers.

    Add two new documents in Documentation/power/ giving general instructions
    on debugging the suspend/resume functionality and testing the suspend and
    resume support in device drivers.

    Signed-off-by: Rafael J. Wysocki
    Cc: Pavel Machek
    Cc: David Brownell
    Cc: Nigel Cunningham
    Cc: Alan Cox
    Cc: Greg KH
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     

08 May, 2007

1 commit

  • f0ced9b22   power management: change /sys/power/disk display ... Browse Code »

    Change /sys/power/disk to display all valid modes as well as the currently
    selected one in a fashion known from the LED subsystem.

    This changes userspace API, but it is apparently not used much (we asked
    some userspace developers)

    Signed-off-by: Johannes Berg
    Acked-by: "Rafael J. Wysocki"
    Acked-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Johannes Berg
     

03 May, 2007

1 commit

01 May, 2007

1 commit

  • 11d77d0c0   power management: remove firmware disk mode ... Browse Code »

    This patch removes the firmware disk suspend mode which is the wrong approach,
    it is supposed to be used for implementing firmware-based disk suspend but
    cannot actually be used for that.

    Signed-off-by: Johannes Berg
    Acked-by: Pavel Machek
    Cc:
    Cc: David Brownell
    Cc: Len Brown
    Acked-by: Russell King
    Cc: Greg KH
    Cc: "Rafael J. Wysocki"
    Cc: Paul Mundt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Johannes Berg
     

27 Mar, 2007

1 commit

08 Dec, 2006

3 commits

30 Nov, 2006

2 commits

04 Nov, 2006

1 commit

  • b918f6e62   [PATCH] swsusp: debugging ... Browse Code »

    Add a swsusp debugging mode. This does everything that's needed for a suspend
    except for actually suspending. So we can look in the log messages and work
    out a) what code is being slow and b) which drivers are misbehaving.

    (1)
    # echo testproc > /sys/power/disk
    # echo disk > /sys/power/state

    This should turn off the non-boot CPU, freeze all processes, wait for 5
    seconds and then thaw the processes and the CPU.

    (2)
    # echo test > /sys/power/disk
    # echo disk > /sys/power/state

    This should turn off the non-boot CPU, freeze all processes, shrink
    memory, suspend all devices, wait for 5 seconds, resume the devices etc.

    Cc: Pavel Machek
    Cc: Stefan Seyfried
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     

04 Oct, 2006

5 commits

27 Sep, 2006

1 commit

  • dd77a4ee0   Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (47 commits)
    Driver core: Don't call put methods while holding a spinlock
    Driver core: Remove unneeded routines from driver core
    Driver core: Fix potential deadlock in driver core
    PCI: enable driver multi-threaded probe
    Driver Core: add ability for drivers to do a threaded probe
    sysfs: add proper sysfs_init() prototype
    drivers/base: check errors
    drivers/base: Platform notify needs to occur before drivers attach to the device
    v4l-dev2: handle __must_check
    add CONFIG_ENABLE_MUST_CHECK
    add __must_check to device management code
    Driver core: fixed add_bind_files() definition
    Driver core: fix comments in drivers/base/power/resume.c
    sysfs_remove_bin_file: no return value, dump_stack on error
    kobject: must_check fixes
    Driver core: add ability for devices to create and remove bin files
    Class: add support for class interfaces for devices
    Driver core: create devices/virtual/ tree
    Driver core: add device_rename function
    Driver core: add ability for classes to handle devices properly
    ...

    Linus Torvalds
     

26 Sep, 2006

2 commits

  • c5c6ba4e0   [PATCH] PM: Add pm_trace switch ... Browse Code »

    Add the pm_trace attribute in /sys/power which has to be explicitly set to
    one to really enable the "PM tracing" code compiled in when CONFIG_PM_TRACE
    is set (which modifies the machine's CMOS clock in unpredictable ways).

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     
  • 4fc084000   updated Documentation/power/devices.txt ... Browse Code »

    This turned into a rewrite of Documentation/power/devices.txt:

    - Provide more of the "big picture"

    - Fixup some of the horribly ancient/obsolete description of device suspend()
    semantics; lots of text just got deleted.

    - Add a decent description of PM_EVENT_* codes, including the new PRETHAW code
    needed in some swsusp scenarios.

    - Describe the new PM factorization from Linus:
    * class suspend, current suspend, then suspend_late
    * NOT suspend_prepare, it wasn't really usable
    * resume_early, current resume, class resume.

    - Updates power/state docs to be correct, and deprecate its usage except for
    driver testing.

    Signed-off-by: David Brownell
    Signed-off-by: Greg Kroah-Hartman

    David Brownell
     

23 Jun, 2006

1 commit

22 Jun, 2006

2 commits

28 Apr, 2006

1 commit

  • 9587c4bf7   [PATCH] suspend: Documentation update for IBM Thinkpad X30 ... Browse Code »

    As reported in Bugzilla Bug 6406, resume from S3 results in a blank screen.

    For the IBM Thinkpad X30 using vesafb as the console driver, successful resume
    from S3 requires option acpi_sleep=s3_bios,s3_mode. Update documentation.

    I would presume that, in any hardware, using vesafb as the console driver will
    require as a minimum s3_mode.

    Signed-off-by: Antonino Daplas
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Antonino A. Daplas
     

23 Mar, 2006

2 commits

  • 6e1819d61   [PATCH] swsusp: userland interface ... Browse Code »

    This patch introduces a user space interface for swsusp.

    The interface is based on a special character device, called the snapshot
    device, that allows user space processes to perform suspend and resume-related
    operations with the help of some ioctls and the read()/write() functions.
     Additionally it allows these processes to allocate free swap pages from a
    selected swap partition, called the resume partition, so that they know which
    sectors of the resume partition are available to them.

    The interface uses the same low-level system memory snapshot-handling
    functions that are used by the built-it swap-writing/reading code of swsusp.

    The interface documentation is included in the patch.

    The patch assumes that the major and minor numbers of the snapshot device will
    be 10 (ie. misc device) and 231, the registration of which has already been
    requested.

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     
  • 543cc27d0   [PATCH] swsusp: documentation updates ... Browse Code »

    Update suspend-to-RAM documentation with new machines, and makes message
    when processes can't be stopped little clearer. (In one case, waiting
    longer actually did help).

    From: "Rafael J. Wysocki"

    Warn in the documentation that data may be lost if there are some
    filesystems mounted from USB devices before suspend.

    [Thanks to Alan Stern for providing the answer to the question in the
    Q:-A: part.]

    Signed-off-by: Pavel Machek
    Signed-off-by: Rafael J. Wysocki
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Machek
     

02 Feb, 2006

1 commit

10 Jan, 2006

1 commit

07 Jan, 2006

1 commit

  • ca0aec0f7   [PATCH] swsusp: make image size limit tunable ... Browse Code »

    Make the suspend image size limit tunable via /sys/power/image_size.

    It is necessary for systems on which there is a limited amount of swap
    available for suspend. It can also be useful for optimizing performance of
    swsusp on systems with 1 GB of RAM or more.

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     

23 Nov, 2005

1 commit

  • 98766fbe6   [PATCH] kernel Doc/ URL corrections ... Browse Code »

    Correct lots of URLs in Documentation/ Also a few minor whitespace cleanups
    and typo/spello fixes. Sadly there are still a lot of bad URLs remaining.

    Signed-off-by: Randy Dunlap
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Randy Dunlap
     

07 Nov, 2005

1 commit

08 Sep, 2005

1 commit

05 Sep, 2005

2 commits

08 Jul, 2005

1 commit

26 Jun, 2005

6 commits

  • 2031d0f58   Merge Christoph's freeze cleanup patch Browse Code »
    Linus Torvalds
     
  • 3e1d1d28d   [PATCH] Cleanup patch for process freezing ... Browse Code »

    1. Establish a simple API for process freezing defined in linux/include/sched.h:

    frozen(process) Check for frozen process
    freezing(process) Check if a process is being frozen
    freeze(process) Tell a process to freeze (go to refrigerator)
    thaw_process(process) Restart process
    frozen_process(process) Process is frozen now

    2. Remove all references to PF_FREEZE and PF_FROZEN from all
    kernel sources except sched.h

    3. Fix numerous locations where try_to_freeze is manually done by a driver

    4. Remove the argument that is no longer necessary from two function calls.

    5. Some whitespace cleanup

    6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
    cleared before setting PF_FROZEN, recalc_sigpending does not check
    PF_FROZEN).

    This patch does not address the problem of freeze_processes() violating the rule
    that a task may only modify its own flags by setting PF_FREEZE. This is not clean
    in an SMP environment. freeze(process) is therefore not SMP safe!

    Signed-off-by: Christoph Lameter
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     
  • 2a9620655   [PATCH] Update video-after-suspend documentation ... Browse Code »

    Update video-after-suspend documentation; few more machines are added.

    Signed-off-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Machek
     
  • 21d6b7e18   [PATCH] suspend: PCI power managment reference implementation ... Browse Code »

    Added reference implementation of suspend and resume routines.

    From: Shaohua Li

    build fix

    Signed-off-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    pavel@ucw.cz
     
  • 5ce47e59c   [PATCH] acpi: fix video docs ... Browse Code »

    This fixes typos/formatting in video_extension.txt.

    Signed-off-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Machek
     
  • fc5fb2c60   [PATCH] swsusp: documentation updates ... Browse Code »

    This updates documentation and fixes pointers in MAINTAINERS file.

    Signed-off-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Machek