Eric Lee / smarc-fsl-linux-kernel

08 Sep, 2020

1 commit

  • e9c142b0d   regulator: remove locking around regulator_notifier_call_chain() ... Browse Code »

    regulator_notifier_call_chain() doesn't need rdev lock and rdev's
    existence is assumed in the code anyway. Remove the locks from drivers.

    Signed-off-by: Michał Mirosław
    Acked-by: Adam Thomson
    Reviewed-by: Dmitry Osipenko
    Link: https://lore.kernel.org/r/42393f66dcc4d80dcd9797be45216b4035aa96cb.1597032945.git.mirq-linux@rere.qmqm.pl
    Signed-off-by: Mark Brown

    Michał Mirosław
     

18 Apr, 2019

1 commit

13 Mar, 2019

3 commits

23 Dec, 2015

1 commit

02 Jun, 2015

1 commit

  • 29454738f   regulator: wm831x: Pass the IRQF_ONESHOT flag ... Browse Code »

    Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
    threaded IRQs without a primary handler need to be requested with
    IRQF_ONESHOT, otherwise the request will fail.

    So pass the IRQF_ONESHOT flag in this case.

    The semantic patch that makes this change is available
    in scripts/coccinelle/misc/irqf_oneshot.cocci.

    Signed-off-by: Fabio Estevam
    Signed-off-by: Mark Brown

    Fabio Estevam
     

20 Oct, 2014

1 commit

20 Feb, 2014

1 commit

17 Sep, 2013

2 commits

30 Jul, 2013

1 commit

12 May, 2013

1 commit

20 Nov, 2012

3 commits

11 Sep, 2012

1 commit

  • 5656098e1   mfd: wm831x: Convert to IORESOURCE_REG ... Browse Code »

    This was originally written by Russell King who unfortunately found
    himself unable to take the patch futher.

    Signed-off-by: Mark Brown
    Acked-by: Arnd Bergmann
    Acked-by: Haojian Zhuang
    Tested-by: Haojian Zhuang
    Signed-off-by: Samuel Ortiz

    Mark Brown
     

30 May, 2012

1 commit

  • 4b7814746   Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 ... Browse Code »

    Pull MFD changes from Samuel Ortiz:
    "Besides the usual cleanups, this one brings:

    * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
    ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.

    * Device tree support for the twl6040, tps65910, da9502 and ab8500
    drivers.

    * Fairly big tps56910, ab8500 and db8500 updates.

    * i2c support for mc13xxx.

    * Our regular update for the wm8xxx driver from Mark."

    Fix up various conflicts with other trees, largely due to ab5500 removal
    etc.

    * tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
    mfd: Fix build break of max77693 by adding REGMAP_I2C option
    mfd: Fix twl6040 build failure
    mfd: Fix max77693 build failure
    mfd: ab8500-core should depend on MFD_DB8500_PRCMU
    gpio: tps65910: dt: process gpio specific device node info
    mfd: Remove the parsing of dt info for tps65910 gpio
    mfd: Save device node parsed platform data for tps65910 sub devices
    mfd: Add r_select to lm3533 platform data
    gpio: Add Intel Centerton support to gpio-sch
    mfd: Emulate active low IRQs as well as active high IRQs for wm831x
    mfd: Mark two lm3533 zone registers as volatile
    mfd: Fix return type of lm533 attribute is_visible
    mfd: Enable Device Tree support in the ab8500-pwm driver
    mfd: Enable Device Tree support in the ab8500-sysctrl driver
    mfd: Add support for Device Tree to twl6040
    mfd: Register the twl6040 child for the ASoC codec unconditionally
    mfd: Allocate twl6040 IRQ numbers dynamically
    mfd: twl6040 code cleanup in interrupt initialization part
    mfd: Enable ab8500-gpadc driver for Device Tree
    mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
    ...

    Linus Torvalds
     

20 May, 2012

1 commit

  • cd99758ba   mfd: Convert wm831x to irq_domain ... Browse Code »

    The modern idiom is to use irq_domain to allocate interrupts. This is
    useful partly to allow further infrastructure to be based on the domains
    and partly because it makes it much easier to allocate virtual interrupts
    to devices as we don't need to allocate a contiguous range of interrupt
    numbers.

    Convert the wm831x driver over to this infrastructure, using a legacy
    IRQ mapping if an irq_base is specified in platform data and otherwise
    using a linear mapping, always registering the interrupts even if they
    won't ever be used. Only boards which need to use the GPIOs as
    interrupts should need to use an irq_base.

    This means that we can't use the MFD irq_base management since the
    unless we're using an explicit irq_base from platform data we can't rely
    on a linear mapping of interrupts. Instead we need to map things via
    the irq_domain - provide a conveniencem function wm831x_irq() to save a
    small amount of typing when doing so. Looking at this I couldn't clearly
    see anything the MFD core could do to make this nicer.

    Since we're not supporting device tree yet there's no meaningful
    advantage if we don't do this conversion in one, the fact that the
    interrupt resources are used for repeated IP blocks makes accessor
    functions for the irq_domain more trouble to do than they're worth.

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

    Mark Brown
     

10 Apr, 2012

1 commit

09 Apr, 2012

1 commit

  • c172708d3   regulator: core: Use a struct to pass in regulator runtime configuration ... Browse Code »
    129

    Rather than adding new arguments to regulator_register() every time we
    want to add a new bit of dynamic information at runtime change the function
    to take these via a struct. By doing this we avoid needing to do further
    changes like the recent addition of device tree support which required each
    regulator driver to be updated to take an additional parameter.

    The regulator_desc which should (mostly) be static data is still passed
    separately as most drivers are able to configure this statically at build
    time.

    Signed-off-by: Mark Brown

    Mark Brown
     

28 Mar, 2012

1 commit

20 Dec, 2011

1 commit

24 Nov, 2011

1 commit

  • 2c043bcbf   regulator: pass additional of_node to regulator_register() ... Browse Code »

    With device tree support for regulators, its needed that the
    regulator_dev->dev device has the right of_node attached.
    To be able to do this add an additional parameter to the
    regulator_register() api, wherein the dt-adapted driver can
    then pass this additional info onto the regulator core.

    Signed-off-by: Rajendra Nayak
    Signed-off-by: Mark Brown

    Rajendra Nayak
     

26 Mar, 2011

1 commit

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
     

03 Mar, 2010

1 commit

03 Dec, 2009

1 commit

17 Sep, 2009

1 commit

  • d4d6b722e   regulator: Add WM831x ISINK support ... Browse Code »

    The WM831x series of PMICs provide two constant current sinks
    designed to drive strings of serially connected LEDs for applications
    such as backlights. This driver adds support for those regulators.

    Signed-off-by: Mark Brown
    Acked-by: Liam Girdwood
    Signed-off-by: Samuel Ortiz

    Mark Brown