Eric Lee / smarc-fsl-linux-kernel

27 Feb, 2020

1 commit

  • cc2550b42   clocksource: Replace setup_irq() by request_irq() ... Browse Code »

    request_irq() is preferred over setup_irq(). The early boot setup_irq()
    invocations happen either via 'init_IRQ()' or 'time_init()', while
    memory allocators are ready by 'mm_init()'.

    Per tglx[1], setup_irq() existed in olden days when allocators were not
    ready by the time early interrupts were initialized.

    Hence replace setup_irq() by request_irq().

    Seldom remove_irq() usage has been observed coupled with setup_irq(),
    wherever that has been found, it too has been replaced by free_irq().

    A build error that was reported by kbuild test robot
    in the previous version of the patch also has been fixed.

    [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos

    Signed-off-by: afzal mohammed
    Signed-off-by: Daniel Lezcano
    Link: https://lore.kernel.org/r/91961c77c1cf93d41523f5e1ac52043f32f97077.1582799709.git.afzal.mohd.ma@gmail.com

    afzal mohammed
     

21 May, 2019

1 commit

  • a636cd6c4   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 ... Browse Code »

    Based on 1 normalized pattern(s):

    licensed under gplv2 or later

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-or-later

    has been chosen to replace the boilerplate/reference in 118 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Jilayne Lovejoy
    Reviewed-by: Steve Winslow
    Reviewed-by: Allison Randal
    Reviewed-by: Kate Stewart
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190519154040.961286471@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

14 Jun, 2017

1 commit

  • 172733959   clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE ... Browse Code »

    The CLOCKSOURCE_OF_DECLARE macro is used widely for the timers to declare the
    clocksource at early stage. However, this macro is also used to initialize
    the clockevent if any, or the clockevent only.

    It was originally suggested to declare another macro to initialize a
    clockevent, so in order to separate the two entities even they belong to the
    same IP. This was not accepted because of the impact on the DT where splitting
    a clocksource/clockevent definition does not make sense as it is a Linux
    concept not a hardware description.

    On the other side, the clocksource has not interrupt declared while the
    clockevent has, so it is easy from the driver to know if the description is
    for a clockevent or a clocksource, IOW it could be implemented at the driver
    level.

    So instead of dealing with a named clocksource macro, let's use a more generic
    one: TIMER_OF_DECLARE.

    The patch has not functional changes.

    Signed-off-by: Daniel Lezcano
    Acked-by: Heiko Stuebner
    Acked-by: Neil Armstrong
    Acked-by: Arnd Bergmann
    Acked-by: Matthias Brugger
    Reviewed-by: Linus Walleij

    Daniel Lezcano
     

15 Apr, 2017

1 commit

  • 547733c58   clockevents/drivers/atlas7: Set ->min_delta_ticks and ->max_delta_ticks ... Browse Code »

    In preparation for making the clockevents core NTP correction aware,
    all clockevent device drivers must set ->min_delta_ticks and
    ->max_delta_ticks rather than ->min_delta_ns and ->max_delta_ns: a
    clockevent device's rate is going to change dynamically and thus, the
    ratio of ns to ticks ceases to stay invariant.

    Make the timer-atlas7 clockevent driver initialize these fields properly.

    This patch alone doesn't introduce any change in functionality as the
    clockevents core still looks exclusively at the (untouched) ->min_delta_ns
    and ->max_delta_ns. As soon as this has changed, a followup patch will
    purge the initialization of ->min_delta_ns and ->max_delta_ns from this
    driver.

    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Cc: Daniel Lezcano
    Cc: Richard Cochran
    Cc: Prarit Bhargava
    Cc: Stephen Boyd
    Cc: Barry Song
    Cc: linux-arm-kernel@lists.infradead.org
    Acked-by: Daniel Lezcano
    Signed-off-by: Nicolai Stange
    Signed-off-by: John Stultz

    Nicolai Stange
     

26 Dec, 2016

1 commit

  • 3ddc76dfc   Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Browse Code »

    Pull timer type cleanups from Thomas Gleixner:
    "This series does a tree wide cleanup of types related to
    timers/timekeeping.

    - Get rid of cycles_t and use a plain u64. The type is not really
    helpful and caused more confusion than clarity

    - Get rid of the ktime union. The union has become useless as we use
    the scalar nanoseconds storage unconditionally now. The 32bit
    timespec alike storage got removed due to the Y2038 limitations
    some time ago.

    That leaves the odd union access around for no reason. Clean it up.

    Both changes have been done with coccinelle and a small amount of
    manual mopping up"

    * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
    ktime: Get rid of ktime_equal()
    ktime: Cleanup ktime_set() usage
    ktime: Get rid of the union
    clocksource: Use a plain u64 instead of cycle_t

    Linus Torvalds
     

25 Dec, 2016

2 commits

  • a5a1d1c29   clocksource: Use a plain u64 instead of cycle_t ... Browse Code »

    There is no point in having an extra type for extra confusion. u64 is
    unambiguous.

    Conversion was done with the following coccinelle script:

    @rem@
    @@
    -typedef u64 cycle_t;

    @fix@
    typedef cycle_t;
    @@
    -cycle_t
    +u64

    Signed-off-by: Thomas Gleixner
    Cc: Peter Zijlstra
    Cc: John Stultz

    Thomas Gleixner
     
  • 73c1b41e6   cpu/hotplug: Cleanup state names ... Browse Code »

    When the state names got added a script was used to add the extra argument
    to the calls. The script basically converted the state constant to a
    string, but the cleanup to convert these strings into meaningful ones did
    not happen.

    Replace all the useless strings with 'subsys/xxx/yyy:state' strings which
    are used in all the other places already.

    Signed-off-by: Thomas Gleixner
    Cc: Peter Zijlstra
    Cc: Sebastian Siewior
    Link: http://lkml.kernel.org/r/20161221192112.085444152@linutronix.de
    Signed-off-by: Thomas Gleixner

    Thomas Gleixner
     

15 Jul, 2016

1 commit

  • eb0a9d8c6   clocksource/atlas7: Convert to hotplug state machine ... Browse Code »

    Install the callbacks via the state machine and let the core invoke
    the callbacks on the already online CPUs.

    Signed-off-by: Richard Cochran
    Signed-off-by: Anna-Maria Gleixner
    Reviewed-by: Sebastian Andrzej Siewior
    Cc: Barry Song
    Cc: Daniel Lezcano
    Cc: Linus Torvalds
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Cc: rt@linutronix.de
    Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de
    Signed-off-by: Ingo Molnar

    Richard Cochran
     

28 Jun, 2016

2 commits

  • 177cf6e52   clocksources: Switch back to the clksrc table ... Browse Code »

    All the clocksource drivers's init function are now converted to return
    an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the
    clksrc-of table.

    Let's convert back the names:
    - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE
    - clksrc-of-ret => clksrc-of

    Signed-off-by: Daniel Lezcano

    For exynos_mct and samsung_pwm_timer:
    Acked-by: Krzysztof Kozlowski

    For arch/arc:
    Acked-by: Vineet Gupta

    For mediatek driver:
    Acked-by: Matthias Brugger

    For the Rockchip-part
    Acked-by: Heiko Stuebner

    For STi :
    Acked-by: Patrice Chotard

    For the mps2-timer.c and versatile.c changes:
    Acked-by: Liviu Dudau

    For the OXNAS part :
    Acked-by: Neil Armstrong

    For LPC32xx driver:
    Acked-by: Sylvain Lemieux

    For Broadcom Kona timer change:
    Acked-by: Ray Jui

    For Sun4i and Sun5i:
    Acked-by: Chen-Yu Tsai

    For Meson6:
    Acked-by: Carlo Caione

    For Keystone:
    Acked-by: Santosh Shilimkar

    For NPS:
    Acked-by: Noam Camus

    For bcm2835:
    Acked-by: Eric Anholt

    Daniel Lezcano
     
  • c41c96dda   clocksource/drivers/atlas7: Convert init function to return error ... Browse Code »

    The init functions do not return any error. They behave as the following:

    - panic, thus leading to a kernel crash while another timer may work and
    make the system boot up correctly

    or

    - print an error and let the caller unaware if the state of the system

    Change that by converting the init functions to return an error conforming
    to the CLOCKSOURCE_OF_RET prototype.

    Proper error handling (rollback, errno value) will be changed later case
    by case, thus this change just return back an error or success in the init
    function.

    Signed-off-by: Daniel Lezcano

    Daniel Lezcano
     

10 Aug, 2015

1 commit

29 Jan, 2015

1 commit