Eric Lee / smarc-fsl-linux-kernel

11 Jan, 2012

1 commit

  • 09a0d183e   leds: convert led i2c drivers to module_i2c_driver ... Browse Code »

    Factor out some boilerplate code for i2c driver registration
    into module_i2c_driver.

    Signed-off-by: Axel Lin
    Cc: Haojian Zhuang
    Cc: Mark Brown
    Cc: Richard Purdie
    Cc: Michael Hennerich
    Cc: Mike Rapoport
    Cc: Guennadi Liakhovetski
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Axel Lin
     

09 Jul, 2011

1 commit

  • 30cb35be6   drivers/leds/leds-pca9532.c: change driver name to be unique ... Browse Code »

    This driver handles the variants pca9530-pca9533, so it chose the name
    "pca953x". However, there is a gpio driver which decided on the same
    name. As a result, those two can't be loaded at the same time. Add a
    subsystem prefix to make the driver name unique. Device matching will not
    suffer, because both are I2C drivers which match using a
    i2c_device_id-table which is not altered.

    Signed-off-by: Wolfram Sang
    Acked-by: Jean Delvare
    Cc: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Wolfram Sang
     

25 May, 2011

2 commits

  • 3dbf622c1   drivers/leds/leds-pca9532.c: add support pca9530, pca9531 and pca9533 ... Browse Code »

    The pca953x family are only different in number of leds and register
    layout Adding chipinfo to use driver with whole pca953x family Rename
    driver to pca953x, but left files and platformflags named pca9532.

    Tested with pca9530 and pca9533

    Tested-by: Juergen Kilb
    Signed-off-by: Jan Weitzel
    Acked-by: Joachim Eastwood
    Tested-by: Joachim Eastwood
    Cc: Wolfram Sang
    Cc: H Hartley Sweeten
    Cc: Richard Purdie
    Cc: Grant Likely
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Weitzel
     
  • 3c1ab50d0   drivers/leds/leds-pca9532.c: add gpio capability ... Browse Code »

    Allow unused leds on pca9532 to be used as gpio. The board I am working
    on now has no less than 6 pca9532 chips. One chips is used for only leds,
    one has 14 leds and 2 gpio and the rest of the chips are gpio only.

    There is also one board in mainline which could use this capabilty;
    arch/arm/mach-iop32x/n2100.c
    232 { .type = PCA9532_TYPE_NONE }, /* power OFF gpio */
    233 { .type = PCA9532_TYPE_NONE }, /* reset gpio */

    This patch defines a new pin type, PCA9532_TYPE_GPIO, and registers a
    gpiochip if any pin has this type set. The gpio will registers all chip
    pins but will filter on gpio_request.

    [randy.dunlap@oracle.com: fix build when GPIOLIB is not enabled]
    Signed-off-by: Joachim Eastwood
    Reviewed-by: Wolfram Sang
    Reviewed-by: H Hartley Sweeten
    Cc: Richard Purdie
    Cc: Grant Likely
    Signed-off-by: Randy Dunlap
    Cc: Jan Weitzel
    Cc: Juergen Kilb
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joachim Eastwood
     

31 Mar, 2011

1 commit

14 Jan, 2011

1 commit

  • 125c71352   leds: leds-pca9532 cleanups ... Browse Code »

    - Remove unneeded input_free_device() after input_unregister_device().

    - Add pca9532_destroy_devices() function for destroy devices.

    Signed-off-by: Axel Lin
    Acked-by: Dmitry Torokhov
    Cc: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Axel Lin
     

03 Jun, 2010

1 commit

  • fbae3fb15   i2c: Remove all i2c_set_clientdata(client, NULL) in drivers ... Browse Code »

    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
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …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
     

05 Oct, 2009

1 commit

07 Sep, 2009

1 commit

24 Jun, 2009

1 commit

06 Apr, 2009

1 commit

30 Mar, 2009

1 commit

08 Jan, 2009

3 commits

23 Jul, 2008

1 commit

  • e14fa8243   leds: Add pca9532 led driver ... Browse Code »

    NXP pca9532 is a LED dimmer/controller attached to i2c bus. It allows
    attaching upto 16 leds which can either be on, off or dimmed and/or blinked
    with the two PWM modulators available.

    This driver is a "new-style" i2c driver that adheres to the driver model and
    implements the led framework api. Since the leds connected to the driver are
    platform specific, it is only useful when platform data is passed to the
    driver to define what leds are connected to which pins.

    Signed-off-by: Riku Voipio
    Signed-off-by: Andrew Morton
    Signed-off-by: Richard Purdie

    Riku Voipio