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Date:	Mon, 3 Nov 2014 10:27:11 +0800
From:	eddie huang <eddie.huang@...iatek.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linux-arm-kernel@...ts.infradead.org>, <heiko@...ech.de>,
	<yingjoe.chen@...il.com>, <gregkh@...uxfoundation.org>,
	<linux-kernel@...r.kernel.org>, <ibanezchen@...il.com>,
	<linux-serial@...r.kernel.org>,
	Matthias Brugger <matthias.bgg@...il.com>, <jslaby@...e.cz>,
	<alan@...ux.intel.com>
Subject: Re: [PATCH RESEND] tty: serial: 8250_mtk: Fix quot calculation

On Fri, 2014-10-31 at 17:48 +0100, Arnd Bergmann wrote:
> On Friday 31 October 2014 17:36:35 Matthias Brugger wrote:
> > -               quot = DIV_ROUND_CLOSEST(port->uartclk, 256 * baud);
> > +               quot = (port->uartclk / (256 * baud)) + 1;
> 
> Should this be DIV_ROUND_UP then?
> 
> 	Arnd
> 

I think DIV_ROUND_UP is more suitable in this case, and I already do
this and test OK on my MTK platform

http://lists.infradead.org/pipermail/linux-arm-kernel/2014-October/296149.html



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