Eric Lee / smarc-fsl-linux-kernel

22 Nov, 2011

1 commit

18 Mar, 2011

1 commit

  • 6d7ed21d1   Merge branches 'defcfg', 'drivers' and 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm ... Browse Code »

    * 'defcfg' of master.kernel.org:/home/rmk/linux-2.6-arm:
    ARM: 6647/1: add Versatile Express defconfig
    ARM: 6644/1: mach-ux500: update the U8500 defconfig

    * 'drivers' of master.kernel.org:/home/rmk/linux-2.6-arm:
    ARM: 6764/1: pl011: factor out FIFO to TTY code
    ARM: 6763/1: pl011: add optional RX DMA to PL011 v2
    ARM: 6758/1: amba: support pm ops
    ARM: amba: make amba_driver id_table const
    ARM: amba: make internal ID table handling const
    ARM: amba: make probe() functions take const id tables
    ARM: 6662/1: amba: make amba_bustype non-static
    ARM: mmci: add dmaengine-based DMA support
    ARM: mmci: no need for separate host->data_xfered
    ARM: mmci: avoid unnecessary switch to data available PIO interrupts
    ARM: mmci: no need to call flush_dcache_page() with sg_miter API
    ARM: mmci: avoid reporting too many completed bytes on fifo overrun
    ALSA: AACI: make fifo variables more explanitory
    ALSA: AACI: no need to call snd_pcm_period_elapsed() for each period
    ALSA: AACI: use snd_pcm_lib_period_bytes()
    ALSA: AACI: clean up AACI announcement printk
    ALSA: AACI: fix channel mask selection
    ALSA: AACI: fix number of channels for record
    ALSA: AACI: fix multiple IRQ claiming

    * 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm:
    VIDEO: cyberpro: remove unused cyber2000fb_get_fb_var()
    VIDEO: cyberpro: remove useless function extreg pointers
    VIDEO: cyberpro: update handling of device structures
    VIDEO: cyberpro: add support for video capture I2C
    VIDEO: cyberpro: make 'reg_b0_lock' always present
    VIDEO: cyberpro: add I2C support
    VIDEO: cyberpro: select lowest multipler/divisor for PLL

    Linus Torvalds
     

10 Mar, 2011

2 commits

  • 696160fec   RTC: Cleanup rtc_class_ops->irq_set_freq() ... Browse Code »

    With the generic rtc code now emulating PIE mode irqs via an
    hrtimer, no one calls the rtc_class_ops->irq_set_freq call.

    This patch removes the hook and deletes the driver functions
    if no one else calls them.

    CC: Thomas Gleixner
    CC: Alessandro Zummo
    CC: Marcelo Roberto Jimenez
    CC: rtc-linux@googlegroups.com
    Signed-off-by: John Stultz

    John Stultz
     
  • 80d4bb515   RTC: Cleanup rtc_class_ops->irq_set_state ... Browse Code »

    With PIE mode interrupts now emulated in generic code via an hrtimer,
    no one calls rtc_class_ops->irq_set_state(), so this patch removes it
    along with driver implementations.

    CC: Thomas Gleixner
    CC: Alessandro Zummo
    CC: Marcelo Roberto Jimenez
    CC: rtc-linux@googlegroups.com
    Signed-off-by: John Stultz

    John Stultz
     

24 Feb, 2011

1 commit

10 Sep, 2010

1 commit

11 Aug, 2010

1 commit

27 Jul, 2010

1 commit

  • 2c39c9e14   ARM: Fix section build warnings for AMBA drivers ... Browse Code »

    Found in the Versatile build:

    WARNING: drivers/built-in.o(.data+0x14c): Section mismatch in reference from the variable pl061_gpio_driver to the (unknown reference) .init.data:(unknown)
    The variable pl061_gpio_driver references
    the (unknown reference) __initdata (unknown)

    WARNING: drivers/built-in.o(.data+0x40f8): Section mismatch in reference from the variable pl011_driver to the (unknown reference) .init.data:(unknown)
    The variable pl011_driver references
    the (unknown reference) __initdata (unknown)

    WARNING: drivers/built-in.o(.data+0x5ab4): Section mismatch in reference from the variable pl031_driver to the (unknown reference) .init.data:(unknown)
    The variable pl031_driver references
    the (unknown reference) __initdata (unknown)

    Basically, amba_id structures must not be __initdata. Also fix:

    WARNING: drivers/built-in.o(.data+0x138): Section mismatch in reference from the variable pl061_gpio_driver to the function .init.text:pl061_probe()
    The variable pl061_gpio_driver references
    the function __init pl061_probe()

    which is an incorrectly annotated probe function. Fix it to reflect
    the other AMBA bus probe functions by removing the __init attributation.

    Signed-off-by: Russell King

    Russell King
     

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 Feb, 2010

1 commit

  • c72881e83   ARM: 5914/1: Modify PL031 for Nomadik and U8500 v2 ... Browse Code »

    This extends the existing PrimeCell PL031 driver with support for
    the ST Microelectronics and ST-Ericsson derivatives, in a first
    and second version as used on the Nomadik and U8500 platforms.
    It also rids the old ioctl() alarm on/off functions in favor of
    the new .alarm_irq_enable field of the RTC class ops.

    Signed-off-by: Linus Walleij
    Signed-off-by: Russell King

    Linus Walleij
     

16 Dec, 2009

1 commit

  • 2934d6a85   rtc: remove __raw_* accessors from PL031 RTC ... Browse Code »

    This switches __raw_[read|write]l() for plain [read|write]l in the PL031
    RTC driver. The sister driver for PL030 use the simple accessors as most
    PrimeCell drivers.

    Signed-off-by: Linus Walleij
    Signed-off-by: Alessandro Zummo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Linus Walleij
     

11 Jun, 2009

1 commit

  • dc890c2dc   [ARM] 5544/1: Trust PrimeCell resource sizes ... Browse Code »

    I found the PrimeCell/AMBA Bus drivers distrusting the resource
    passed in as part of the struct amba_device abstraction. This
    patch removes all hard coded resource sizes found in the PrimeCell
    drivers and move the responsibility of this definition back to
    the platform/board device definition, which already exist and
    appear to be correct for all in-tree users of these drivers.
    We do this using the resource_size() inline function which was
    also replicated in the only driver using the resource size, so
    that has been changed too. The KMI_SIZE was left in kmi.h in case
    someone likes it. Test-compiled against Versatile and Integrator
    defconfigs, seems to work but I don't posess these boards and
    cannot test them.

    Signed-off-by: Linus Walleij
    Signed-off-by: Russell King

    Linus Walleij
     

21 May, 2009

1 commit

17 Oct, 2008

1 commit

22 May, 2008

1 commit

20 Oct, 2007

1 commit

  • 1977f0327   remove asm/bitops.h includes ... Browse Code »

    remove asm/bitops.h includes

    including asm/bitops directly may cause compile errors. don't include it
    and include linux/bitops instead. next patch will deny including asm header
    directly.

    Cc: Adrian Bunk
    Signed-off-by: Jiri Slaby
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jiri Slaby
     

09 May, 2007

1 commit

  • ab6a2d70d   rtc: rtc interfaces don't use class_device ... Browse Code »

    This patch removes class_device from the programming interface that the RTC
    framework exposes to the rest of the kernel. Now an rtc_device is passed,
    which is more type-safe and streamlines all the relevant code.

    Signed-off-by: David Brownell
    Acked-by: Greg Kroah-Hartman
    Acked-By: Alessandro Zummo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

01 Oct, 2006

1 commit

03 Jul, 2006

1 commit

26 Jun, 2006

1 commit

  • 8ae6e163c   [PATCH] Add driver for ARM AMBA PL031 RTC ... Browse Code »

    Add a driver for the ARM PL031 RTC found on some ARM SOCs. The driver is
    fairly trivial as the RTC only provides a read/write and alarm capability.

    [akpm@osdl.org: compile fix]
    Signed-off-by: Deepak
    Acked-by: Alessandro Zummo
    Cc: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Deepak Saxena