Re: [PATCH] pata_it8213: MWDMA0 is unsupported

[Jeff Garzik]

On 11/26/2009 12:23 PM, Sergei Shtylyov wrote:
> Bartlomiej Zolnierkiewicz wrote:
>
> > > MWDMA0 timings cannot be met with the PIIX based controller
> > > programming interface.
>
> > > This change should be safe as this is how we have been doing
> > > things in IDE it8213 host driver for years.
>
> > > Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> > > ---
> > > Verified with the documentation (similar case as with pata_efar).
>
> > Uhhh, no...
>
> > Too many damn drivers.
>
> > Too much damn duplication.
>
> > Too much damn subtle differences here and there.
>
> > The hardware is probably fine for MWMDA0 when it comes to
> > pata_{efar,it8213},
> > it just not documented properly in the data sheet.
>
> How so with pata_efar? The active/recovery bitfields are still 2-bit
> wide, no?

So....  pata_it8213 is fine for MWDMA0, then?

	Jeff




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