Eric Lee / smarc-fsl-linux-kernel

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
     
  • 2ef2538bc   clocksource/drivers/sp804: 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

  • daea72831   clockevents/drivers/timer-sp804: Migrate to new 'set-state' interface ... Browse Code »

    Migrate timer-sp driver to the new 'set-state' interface provided by
    clockevents core, the earlier 'set-mode' interface is marked obsolete
    now.

    This also enables us to implement callbacks for new states of clockevent
    devices, for example: ONESHOT_STOPPED.

    There are few more changes worth noticing:

    - The clockevent device was disabled by writing: 'TIMER_CTRL_32BIT |
    TIMER_CTRL_IE' to ctrl register earlier. i.e. by un-setting the
    TIMER_CTRL_ENABLE bit. Its done by writing zero now and should have
    the same effect.

    - For shutdown and resume we were writing the same value twice to the
    register (to disable the timer), which is fixed now.

    - Switching to oneshot mode was divided into two parts earlier:
    - Firstly set_mode() was writing:
    'TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ONESHOT'
    to ctrl register (device not enabled yet)
    - Then sp804_set_next_event() was enabling the device by writing
    'readl(ctrl) | TIMER_CTRL_ENABLE' to the ctrl register. This was
    unnecessarily complicated.
    - Change this to: Stop device on set_state_oneshot and configure it in
    sp804_set_next_event().

    Cc: Daniel Lezcano
    Cc: Russell King
    Cc: Sudeep Holla
    Cc: Arnd Bergmann
    Cc: Catalin Marinas
    Cc: Olof Johansson
    Signed-off-by: Viresh Kumar
    Signed-off-by: Daniel Lezcano

    Viresh Kumar
     

02 Jun, 2015

1 commit

  • 0b7402dce   ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource ... Browse Code »

    The ARM Dual-Timer SP804 module is peripheral found not only on ARM32
    platforms but also on ARM64 platforms.

    This patch moves the driver out of arch/arm to driver/clocksource
    so that it can be used on ARM64 platforms also.

    Cc: Daniel Lezcano
    Cc: Rob Herring
    Cc: Arnd Bergmann
    Cc: Catalin Marinas
    Cc: Olof Johansson
    Acked-by: Thomas Gleixner
    Signed-off-by: Sudeep Holla
    Signed-off-by: Russell King

    Sudeep Holla