Re: [PATCH 02/20] ata_piix: unify code for programming PIO andMWDMA timings

[Alan Cox]

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

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