linux-kernel - Re: [PATCH] ata: pata_platform: Disable prereset logic.

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Message-ID: <20070523094858.GA30352@linux-sh.org>
Date:	Wed, 23 May 2007 18:48:58 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Tejun Heo <htejun@...il.com>
Cc:	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ata: pata_platform: Disable prereset logic.

On Wed, May 23, 2007 at 11:29:37AM +0200, Tejun Heo wrote:
> Paul Mundt wrote:
> > On Wed, May 23, 2007 at 10:07:08AM +0200, Tejun Heo wrote:
> >> Paul Mundt wrote:
> >>> On a number of boards the current prereset logic seems to misbehave:
> >>>
> >>> scsi0 : pata_platform
> >>> ata1: PATA max PIO0 cmd 0xb06001f0 ctl 0xb06003f6 bmdma 0x00000000 irq 0
> >>> ata1: device not ready (errno=-19), forcing hardreset
> >>> ata1: BUG: prereset() requested invalid reset type
> >>>
> >>> This triggers when there is no card inserted in the slot.
> >>>
> > ata_wait_ready() works fine, it reports 0xff immediately (and this is
> > what I would expect when there is no card inserted).
> 
> Does the attached patch fix your problem?
> 
Yes, that works fine, thanks.
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