[Linux-stm32] [PATCH 2/3] clocksource: Add Low Power STM32 timers driver
Linus Walleij
linus.walleij at linaro.org
Thu Jan 16 09:06:40 UTC 2020
On Thu, Jan 9, 2020 at 3:54 PM Benjamin Gaignard
<benjamin.gaignard at st.com> wrote:
> Implement clock event driver using low power STM32 timers.
> Low power timers counter s running even in when CPU is in stop mode.
> It could be used as clock event broadcaster to wake up CPUs but not like
> a clocksource because each it rise an interrupt the counter restart from 0.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard at st.com>
> Signed-off-by: Pascal Paillet <p.paillet at st.com>
Looks good to me:
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>
If you have a spare always-on timer (and it looks like you have) which
you can set as free-running, you could register it with
CLOCK_SOURCE_SUSPEND_NONSTOP so it
keeps the system clock ticking also during suspend as
alternative clock source.
Yours,
Linus Walleij
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