Subject: Re: [PATCH] add delay around sl82c105_reset_engine calls

From: Alan <[email-masked]>
Date: Thu, 4 Jan 2007 10:53:45 +0000

On Thu, 4 Jan 2007 07:42:54 +0100
Olaf Hering <[email-masked]> wrote:

> On Mon, Dec 04, Alan wrote:
> 
> > On Mon, 4 Dec 2006 13:40:26 +0100 (MET)
> > Olaf Hering <[email-masked]> wrote:
> > 
> > > 
> > > 
> > > the hald media changed polling does really confuse things.
> > > noone knows why the delays are needed, but they give us access to
> > > the CD.
> > 
> > Can you tell me what happens if you completely pull the reset out of the
> > dma_end function. Do you still need delays then.
> 
> An udelay(50) will give reliable access to the drive, but there is still
> one (or more) EH reset. The drive works without EH resets with udelay(100).
> 
> Signed-off-by: Olaf Hering <[email-masked]>

Acked-by: Alan Cox <[email-masked]>

This wants revisiting some day to understand the interaction better but
for now it gets us up and running properly.