24 Oct, 2011

1 commit


31 Mar, 2011

1 commit


27 Mar, 2011

1 commit


23 Mar, 2011

2 commits

  • The device table is required to load modules based on modaliases.
    After adding the MODULE_DEVICE_TABLE, below entries will be added to
    modules.alias:
    alias i2c:pcf50633 pcf50633

    Signed-off-by: Axel Lin
    Acked-by: Harald Welte
    Signed-off-by: Samuel Ortiz

    Axel Lin
     
  • There is a move to deprecate bus-specific PM operations and move to
    using dev_pm_ops instead in order to reduce the amount of boilerplate
    code in buses and facilitiate updates to the PM core. Do this move for
    the pcf50633 driver.

    Signed-off-by: Mark Brown
    Signed-off-by: Samuel Ortiz

    Mark Brown
     

29 Oct, 2010

2 commits


03 Jun, 2010

1 commit

  • I2C drivers can use the clientdata-pointer to point to private data. As I2C
    devices are not really unregistered, but merely detached from their driver, it
    used to be the drivers obligation to clear this pointer during remove() or a
    failed probe(). As a couple of drivers forgot to do this, it was agreed that it
    was cleaner if the i2c-core does this clearance when appropriate, as there is
    no guarantee for the lifetime of the clientdata-pointer after remove() anyhow.
    This feature was added to the core with commit
    e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers.

    As there is no need anymore to clear the clientdata-pointer, remove all current
    occurrences in the drivers to simplify the code and prevent confusion.

    Signed-off-by: Wolfram Sang
    Acked-by: Mark Brown
    Acked-by: Greg Kroah-Hartman
    Acked-by: Richard Purdie
    Acked-by: Dmitry Torokhov
    Signed-off-by: Jean Delvare

    Wolfram Sang
     

28 May, 2010

5 commits


27 May, 2010

1 commit


30 Mar, 2010

1 commit

  • …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

14 Dec, 2009

7 commits


17 Sep, 2009

1 commit

  • Using the default kernel "events" workqueue causes problems with
    synchronous adc readings if initiated from some task on the same
    workqueue.

    I had a deadlock trying to use pcf50633_adc_sync_read from a
    power_supply class driver because the reading was initiated from the
    workqueue and it waited for the irq processing to complete (to get the
    result) and that was put on the same workqueue.

    Signed-off-by: Paul Fertser
    Signed-off-by: Samuel Ortiz

    Paul Fertser
     

18 Jun, 2009

1 commit


16 Jun, 2009

1 commit

  • In the near future, the driver core is going to not allow direct access
    to the driver_data pointer in struct device. Instead, the functions
    dev_get_drvdata() and dev_set_drvdata() should be used. These functions
    have been around since the beginning, so are backwards compatible with
    all older kernel versions.

    Cc: Samuel Ortiz
    Acked-by: Mark Brown
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

20 May, 2009

1 commit

  • Without this change Openmoko Freerunner (GTA02) bootstrap will deadlock.
    As pointed out in other patches this issue is in the wild since the merge
    of:

    : commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9
    : Author: Thomas Gleixner
    : Date: Mon Mar 23 18:28:15 2009 +0100
    :
    : genirq: add threaded interrupt handler support
    :
    : Add support for threaded interrupt handlers

    Signed-off-by: Nelson Castillo
    Cc: Ingo Molnar
    Cc:
    Cc: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Samuel Ortiz

    Nelson Castillo
     

05 Apr, 2009

1 commit


17 Feb, 2009

1 commit


15 Jan, 2009

1 commit


11 Jan, 2009

1 commit

  • This patch implements the core of the PCF50633 driver. This core driver has
    generic register read/write functions and does interrupt management for its
    sub devices.

    Signed-off-by: Balaji Rao
    Cc: Andy Green
    Signed-off-by: Samuel Ortiz

    Balaji Rao