[Bug 102741] pata_hpt37x driver refuses to operate with Adaptec 1200A at UDMA/100

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https://bugzilla.kernel.org/show_bug.cgi?id=102741

--- Comment #3 from Sergei Shtylyov <headless@email.ru> ---
(In reply to Andreas E from comment #2)

> NAH!!! I can't believe it. This thing can do UDMA/100

Well, I wouldn't call UDMA/100 with 66 MHz clock real UDMA/100.

> but it was limited artificially to /66.

"Shit happens". :-)

> In any case, I think the driver messages should *inform* the user about this
> being not their HDD(s) at fault, but forced to this speed by the driver
> itself. Because every user would initially think that it's their fault, not
> the driver's.

Makes sense.

> Is there any way I can force it to operate at UDMA/100? 
> Some #define, anything? 

With the IDE driver, there was a #define but that's not the case with the
libata one. Thank Alan Cox for that. :-)
However, it shouldn't be hard to do, just comment out the following lines:

                if (clock_slot < 2 && ppi[0] == &info_hpt370)
                        ppi[0] = &info_hpt370_33;
                if (clock_slot < 2 && ppi[0] == &info_hpt370a)
                        ppi[0] = &info_hpt370a_33;

[the rest skipped]

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