linux-kernel - Re: [PATCH v7 5/6] clocksource: Add Low Power STM32 timers driver

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Date:   Mon, 18 May 2020 22:18:26 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Benjamin Gaignard <benjamin.gaignard@...com>,
        fabrice.gasnier@...com, lee.jones@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, tglx@...utronix.de
Cc:     devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Pascal Paillet <p.paillet@...com>
Subject: Re: [PATCH v7 5/6] clocksource: Add Low Power STM32 timers driver

On 20/04/2020 14:16, Benjamin Gaignard wrote:
> From: Benjamin Gaignard <benjamin.gaignard@...aro.org>
> 
> Implement clock event driver using low power STM32 timers.
> Low power timer counters running even when CPUs are stopped.
> 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.
> 
> Low power timers have a 16 bits counter and a prescaler which allow to
> divide the clock per power of 2 to up 128 to target a 32KHz rate.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...aro.org>
> Signed-off-by: Pascal Paillet <p.paillet@...com>

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>

[ ... ]

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