linux-kernel - Re: [PATCH] ide: at91_ide.c bugfix for high master clock

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Message-Id: <20101211.120738.59690708.davem@davemloft.net>
Date:	Sat, 11 Dec 2010 12:07:38 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	plyatov@...il.com
Cc:	sshtylyov@...sta.com, jgarzik@...ox.com, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, geomatsi@...il.com,
	nicolas.ferre@...el.com, linux@...im.org.za,
	linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk,
	christian.glindkamp@...kit.de, ryan@...ewatersys.com,
	pgsellmann@...tner-elektronik.at
Subject: Re: [PATCH] ide: at91_ide.c bugfix for high master clock

From: Igor Plyatov <plyatov@...il.com>
Date: Sat, 11 Dec 2010 23:02:25 +0300

> The AT91SAM9 microcontrollers with master clock higher then 105 MHz
> and PIO0, have overflow of the NCS_RD_PULSE value in the MSB. This
> lead to "NCS_RD_PULSE" pulse longer then "NRD_CYCLE" pulse and at91_ide
> driver does not detect ATA device.
> This patch must be applied on top of my patch for pata_at91 where the
> same bug fixed.
> 
> Signed-off-by: Igor Plyatov <plyatov@...il.com>

Please submit this as two patches, since different people maintain
the IDE vs. ATA layers.

In fact the dev_warn() change is the only change you made to the
ATA driver and that has nothing to do with the bug fix you are
making here.  So it would belong as a seperate patch submission
anyways.

Thanks.

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