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    Subject[RFC v3 0/2] clocksource: davinci-timer: new driver
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    From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

    This is another version of the new davinci clocksource driver. After much
    discussion this contains many changes to simplify and improve the driver.

    v1 -> v2:
    - changed the format of the copyright notice
    - removed all mentiones of the periodic timer setting
    - added caching of the TCR register value so that its updating doesn't
    require a read
    - split the timer configuration for clock events into the
    set_state_oneshot() and set_state_shutdown() callbacks

    v2 -> v3:
    - tim34, if used, should run in periodic mode for clocksource, now fixed
    - dropped all the configuration variables from struct davinci_clockevent
    as clockevent always uses tim12
    - dropped caching of the TCR register with the following reasoning: on
    systems using tim34 for clocksource, the TCR register is only touched
    by the clock driver and we know that we need to keep tim34 in periodic
    mode; on da830 the RTOS running on the DSP may modify the TCR register
    but we on the other hand never change its settings when only using tim12
    - subsequently the whole routine for TCR updating was dropped
    - dropped the shift variable from most places
    - added separate routines for initializing clocksource for da830 and all
    other systems
    - sprinkled a bunch of comments all over the driver to explain things
    that caused confusion before

    Bartosz Golaszewski (2):
    clocksource: davinci-timer: add support for clockevents
    clocksource: timer-davinci: add support for clocksource

    drivers/clocksource/Kconfig | 5 +
    drivers/clocksource/Makefile | 1 +
    drivers/clocksource/timer-davinci.c | 370 ++++++++++++++++++++++++++++
    include/clocksource/timer-davinci.h | 44 ++++
    4 files changed, 420 insertions(+)
    create mode 100644 drivers/clocksource/timer-davinci.c
    create mode 100644 include/clocksource/timer-davinci.h

    --
    2.21.0

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