linux-kernel - Re: [PATCH v3 1/2] mtd: nand: pxa3xx: Fix PIO FIFO draining

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Date:	Tue, 24 Feb 2015 09:17:09 +0100
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Lior Amsalem <alior@...vell.com>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Thomas Petazzoni <thomas@...e-electrons.com>,
	Seif Mazareeb <seif@...vell.com>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org,
	Sudhakar Gundubogula <sudhakar@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Boris Brezillon <boris@...e-electrons.com>,
	linux-mtd@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 1/2] mtd: nand: pxa3xx: Fix PIO FIFO draining

Hi Brian,

On Mon, Feb 23, 2015 at 07:45:48PM -0800, Brian Norris wrote:
> On Tue, Feb 17, 2015 at 02:16:43PM -0300, Ezequiel Garcia wrote:
> > On 02/17/2015 02:07 PM, Robert Jarzmik wrote:
> > > It will be Brian choice eventually, but if you say that you will submit that
> > > approach for next cycle, and yours for stable, and that for next you'll convert
> > > mdelay() to msleep(), I'll stop arguing.
> > 
> > How about you push a proper patchset with this alternative (and a nice
> > cover letter explaining the need for a threaded irq) so we can discuss
> > properly this new turn?
> 
> I think both Maxime's change (polling a new HW bit) and Robert J's
> change (move to a threaded IRQ) are good. I'll take another look, but I
> expect I'll take Maxime's v4 for the 4.0 cycle, and Robert J's v2 for
> 4.1 (or will we just jump straight to 5.0? I never know).

That's what I would expect too.

> Will I see a patch to convert to msleep() and/or a jiffies timeout
> in the near future?

As soon as both patches are merged.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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