linux-kernel - Re: [PATCH v4 1/4] clocksource: stm32: convert driver to timer

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Message-ID: <88c8f124-4cb1-a982-d4a2-c029ab0dcd2a@linaro.org>
Date:   Tue, 17 Oct 2017 19:09:14 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk,
        mcoquelin.stm32@...il.com, alexandre.torgue@...com,
        tglx@...utronix.de, ludovic.barre@...com
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/4] clocksource: stm32: convert driver to timer_of

On 02/10/2017 17:51, Benjamin Gaignard wrote:
> Convert driver to use timer_of helpers. This allow to remove
> custom proprietary structure.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...aro.org>
> ---

[ ... ]

> -	clockevents_config_and_register(&data->evtdev,
> -					DIV_ROUND_CLOSEST(rate, prescaler),
> -					0x1, max_delta);
> -
> -	ret = request_irq(irq, stm32_clock_event_handler, IRQF_TIMER,
> -			"stm32 clockevent", data);
> -	if (ret) {
> -		pr_err("%pOF: failed to request irq.\n", np);
> -		goto err_get_irq;
> -	}
> +	clockevents_config_and_register(&to->clkevt,
> +					timer_of_period(to), 0x60, max_delta);


Why 0x1 -> 0x60 ?

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