Messages in this thread | | | Date | Mon, 31 Jan 2000 01:34:51 -0800 (PST) | From | Andre Hedrick <> | Subject | RE: IRQ problem w. Cardbus card - more info |
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On Mon, 31 Jan 2000, J.W. Hoogervorst wrote:
> > >The laptop is a Canon (old model) P150-mmx, it has: > > > TI PCI1130 cardbus bridge, two slots > > > PicoPower Technology PT86C52x PCI bridge > > > CMD PCI0643 IDE controller > > I am seeing these problems, too. 2.3.36-pre3 is ok, after that, nothing but > problems. 2.3.40-pre3 did work most of the time, but hung the system after an > suspend-to-disk, resume-from-disk cycle, so I stayed at 2.3.36-pre3. It turns
The IDE driver currently knows nothing about APM/ACPI issues. However, it appears that the CMD643 is the laptop version of the CMD646. With some help from the outside world for the needs of APM/ACPI for the required driver calls to IDE, I am willing to look/add DMAing calls that can be nice redirected to the chipset code with a few options.
Also chipset code may be the preffered location to preseve drive setting wrt the associated chipset. This would require an ide_history struct to be added to the ide_hwifs_s that would reflect device/channel settings.
Disable DMAing and retuning the drives/host combinations to PIO 0 be for suspend. Note the reverse is required from resume. I would expect that a timer/options would be needed to allow full/limited tuning. The reason for this is more for power consumption than anything else.
Andre Hedrick The Linux ATA/IDE guy
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