linux-kernel - Re: [PATCHv2 09/11] unicore32 core architecture: timer and time handling

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Date:	Wed, 16 Feb 2011 10:20:35 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Guan Xuetao <gxt@...c.pku.edu.cn>
cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>, "'Greg KH'" <greg@...ah.com>
Subject: Re: [PATCHv2 09/11] unicore32 core architecture: timer and time
 handling

On Sun, 13 Feb 2011, Guan Xuetao wrote:
> +static struct clock_event_device ckevt_puv3_osmr0 = {
> +	.name		= "osmr0",
> +	.features	= CLOCK_EVT_FEAT_ONESHOT,
> +#ifdef CONFIG_ARCH_FPGA
> +	.shift		= 18, /* correct shift val: 16, but warn_on_slowpath */
> +#else
> +	.shift          = 30,
> +#endif

Please get rid of this.

> +void __init time_init(void)
> +{
> +	OST_OIER = 0;		/* disable any timer interrupts */
> +	OST_OSSR = 0;		/* clear status on all timers */
> +
> +	ckevt_puv3_osmr0.mult =
> +		div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, ckevt_puv3_osmr0.shift);

And use clockevents_calc_mult_shift() instead of this.

Thanks,

	tglx
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