Eric Lee / smarc-fsl-linux-kernel

11 Jan, 2012

1 commit

  • 0c4eae665   rtc: convert drivers/rtc/* to use module_platform_driver() ... Browse Code »

    This patch converts the drivers in drivers/rtc/* to use the
    module_platform_driver() macro which makes the code smaller and a bit
    simpler.

    Signed-off-by: Axel Lin
    Acked-by: Mark Brown
    Acked-by: Mike Frysinger
    Acked-by: Guan Xuetao
    Acked-by: Linus Walleij
    Acked-by: Haojian Zhuang
    Cc: Alessandro Zummo
    Cc: Srinidhi Kasagar
    Cc: Lars-Peter Clausen
    Cc: Ben Dooks
    Cc: John Stultz
    Acked-by: Jean-Christophe PLAGNIOL-VILLARD
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Axel Lin
     

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
     

04 Feb, 2011

1 commit

  • 16380c153   RTC: Convert rtc drivers to use the alarm_irq_enable method ... Browse Code »

    Some rtc drivers use the ioctl method instead of the alarm_irq_enable
    method for enabling alarm interupts. With the new virtualized RTC
    rework, its important for drivers to use the alarm_irq_enable instead.

    This patch converts the drivers that use the AIE ioctl method to
    use the alarm_irq_enable method. Other ioctl cmds are left untouched.

    I have not been able to test or even compile most of these drivers.
    Any help to make sure this change is correct would be appreciated!

    CC: Alessandro Zummo
    CC: Thomas Gleixner
    CC: Marcelo Roberto Jimenez
    Reported-by: Marcelo Roberto Jimenez
    Tested-by: Marcelo Roberto Jimenez
    Signed-off-by: John Stultz

    John Stultz
     

16 Dec, 2009

1 commit

12 Nov, 2009

1 commit

  • 61df33370   rtc-vr41xx: fix do_div() warning ... Browse Code »

    drivers/rtc/rtc-vr41xx.c: In function 'vr41xx_rtc_irq_set_freq':
    drivers/rtc/rtc-vr41xx.c:217: warning: comparison of distinct pointer types lacks a cast
    drivers/rtc/rtc-vr41xx.c:217: warning: right shift count >= width of type
    drivers/rtc/rtc-vr41xx.c:217: warning: passing argument 1 of '__div64_32' from incompatible pointer type
    include/asm-generic/div64.h:35: note: expected 'uint64_t *' but argument is of type 'long unsigned int *'

    Signed-off-by: Yoichi Yuasa
    Cc: Alessandro Zummo
    Cc: Paul Gortmaker
    Cc: Paul Mundt
    Cc: David Brownell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoichi Yuasa
     

03 Jul, 2009

1 commit

07 Jan, 2009

2 commits

  • 5d2a50371   rtc: move power of 2 periodic frequency check down into drivers ... Browse Code »

    Move the power of 2 check on frequencies down into individual rtc drivers

    This is to allow for non power of 2 real time clock periodic interrupts
    such as those on the pxa27x to be found in the new pxa27x-rtc driver

    Signed-off-by: Jonathan Cameron
    Signed-off-by: Alessandro Zummo
    Cc: David Brownell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jonathan Cameron
     
  • 2fac6674d   rtc: bunch of drivers: fix 'no irq' case handing ... Browse Code »

    This patch fixes a bunch of irq checking misuses. Most drivers were
    getting irq via platform_get_irq(), which returns -ENXIO or r->start.

    rtc-cmos.c is special. It is using PNP and platform bindings. Hopefully
    nobody is using PNP IRQ 0 for RTC. So the changes should be safe.

    rtc-sh.c is using platform_get_irq, but was storing a result into an
    unsigned type, then was checking for < 0. This is fixed now.

    Signed-off-by: Anton Vorontsov
    Cc: Alessandro Zummo
    Acked-by: David Brownell
    Acked-by: Paul Mundt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Anton Vorontsov
     

16 Oct, 2008

1 commit

25 Jul, 2008

1 commit

11 Apr, 2008

1 commit

  • ad28a07bc   rtc: fix platform driver hotplug/coldplug ... Browse Code »

    Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
    prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable RTC
    platform drivers, to re-enable module auto loading.

    [dbrownell@users.sourceforge.net: more drivers, minor fix]
    Signed-off-by: Kay Sievers
    Signed-off-by: David Brownell
    Cc: Greg KH
    Cc: Alessandro Zummo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kay Sievers
     

13 Jul, 2007

1 commit

09 May, 2007

2 commits

  • 9b5ef64a3   rtc: update vr41xx alarm handling ... Browse Code »

    - vr41xx_rtc_read_alarm() reports alarm enabled.
    - vr41xx_rtc_set_alarm() sets alarm disable/enable by rtc_wkalrm.enabled.

    Signed-off-by: Yoichi Yuasa
    Acked-by: Alessandro Zummo
    Acked-by: David Brownell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoichi Yuasa
     
  • 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

14 Jul, 2006

1 commit

03 Jul, 2006

1 commit

28 Jun, 2006

1 commit

  • 34af946a2   [PATCH] spin/rwlock init cleanups ... Browse Code »

    locking init cleanups:

    - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
    - convert rwlocks in a similar manner

    this patch was generated automatically.

    Motivation:

    - cleanliness
    - lockdep needs control of lock initialization, which the open-coded
    variants do not give
    - it's also useful for -rt and for lock debugging in general

    Signed-off-by: Ingo Molnar
    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

26 Jun, 2006

1 commit

22 May, 2006

1 commit

11 Apr, 2006

1 commit