Messages in this thread | | | Date | Mon, 21 Feb 2011 14:38:37 +0300 | From | Sergei Shtylyov <> | Subject | Re: [PATCH 02/20] ata_piix: unify code for programming PIO and MWDMA timings |
| |
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
| |