Re: [PATCH 02/20] ata_piix: unify code for programming PIO and MWDMAtimings

[Sergei Shtylyov]

Hello.

On 21-02-2011 0:07, Alan Cox wrote:

> >      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

   Yes, I mean this.

> that sounds sensible, have to see what the docs say happens if you ever
> set MWDMA without IORDY.

   Don't think they say anything on this matter but I can't imagine that 
IORDY matters for DMA.

WBR, Sergei
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