11 Oct, 2010

1 commit


06 Oct, 2010

10 commits


22 Sep, 2010

1 commit


09 Sep, 2010

5 commits


08 Sep, 2010

2 commits

  • The Line and Mic inputs cannot be used at the same time, so the driver
    has to automatically disable one of them if both are set. However, it
    forgot to notify userspace about this change, so the mixer state would
    be inconsistent. To fix this, check if the other control gets muted,
    and send a notification event in this case.

    Signed-off-by: Clemens Ladisch
    Reported-and-tested-by: Nathan Schagen
    Cc:
    Signed-off-by: Takashi Iwai

    Clemens Ladisch
     
  • For the WM8776 chip, this driver uses a different sample format and
    more features than the Windows driver. When rebooting from Linux into
    Windows, the latter driver does not reset the chip but assumes all its
    registers have their default settings, so we get garbled sound or, if
    the output happened to be muted before rebooting, no sound.

    To make that driver happy, hook our driver's cleanup function into the
    shutdown notifier and ensure that the chip gets reset.

    Signed-off-by: Clemens Ladisch
    Reported-and-tested-by: Nathan Schagen
    Cc:
    Signed-off-by: Takashi Iwai

    Clemens Ladisch
     

12 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
     

04 Mar, 2010

1 commit

  • In the original code the condition was always true (hopefully) because
    WM8776_HPLVOL is zero.

    Signed-off-by: Dan Carpenter
    Signed-off-by: Clemens Ladisch
    Signed-off-by: Jaroslav Kysela
    Signed-off-by: Takashi Iwai

    Clemens Ladisch
     

09 Feb, 2010

1 commit


18 Jan, 2010

1 commit


28 Sep, 2009

14 commits


07 Sep, 2009

1 commit

  • When the volume is changed continuously (e.g., when the user drags a
    volume slider with the mouse), the driver does lots of I2C writes.
    Apparently, the sound chip can get confused when we poll the I2C status
    register too much, and fails to complete a read from it. On the PCI-E
    models, the PCI-E/PCI bridge gets upset by this and generates a machine
    check exception.

    To avoid this, this patch replaces the polling with an unconditional
    wait that is guaranteed to be long enough.

    Signed-off-by: Clemens Ladisch
    Tested-by: Johann Messner
    Cc:
    Signed-off-by: Takashi Iwai

    Clemens Ladisch
     

03 Sep, 2009

1 commit

  • The card model detection code introduced in 2.6.30 that tries to work
    around partially broken EEPROM contents by reading the EEPROM directly
    does not handle cards where the EEPROM has been omitted. In this case,
    we have to use the default ID to allow the driver to load.

    Signed-off-by: Clemens Ladisch
    Reported-and-tested-by: Ozan Çağlayan
    Cc:
    Signed-off-by: Takashi Iwai

    Clemens Ladisch