From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH 02/20] ata_piix: unify code for programming PIO and
 MWDMA timings
Date: Sun, 20 Feb 2011 21:07:31 +0000
Message-ID: <20110220210731.0c774fa7@lxorguk.ukuu.org.uk>
References: <20110208122314.19110.4092.sendpatchset@linux-mhg7.site>
	<20110208122346.19110.8441.sendpatchset@linux-mhg7.site>
	<4D6118DC.80505@ru.mvista.com>
	<20110220185958.364df4cc@lxorguk.ukuu.org.uk>
	<4D617CC8.3020108@ru.mvista.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Return-path: <linux-ide-owner@vger.kernel.org>
Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:52096 "EHLO
	www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org
	with ESMTP id S1753468Ab1BTVGJ (ORCPT
	<rfc822;linux-ide@vger.kernel.org>); Sun, 20 Feb 2011 16:06:09 -0500
In-Reply-To: <4D617CC8.3020108@ru.mvista.com>
Sender: linux-ide-owner@vger.kernel.org
List-Id: linux-ide@vger.kernel.org
To: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org

>     PIO mode is setup by different code, and it takes care of the IORDY 
> setting according to the PIO rules (and it gets called). DMA mode setup should 
> just ignore the IORDY setting as in all other sane drivers.


Well it can't ignore it - but if you mean just keep the bit as is then
that sounds sensible, have to see what the docs say happens if you ever
set MWDMA without IORDY.