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

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Message-ID: <20150224034548.GC18140@ld-irv-0074>
Date:	Mon, 23 Feb 2015 19:45:48 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	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

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

Brian
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