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    SubjectRe: [PATCH] PM-Timer: doesn't use workaround if chipset is not buggy
    OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> wrote:
    >
    >
    > ...
    >
    > This patch adds blacklist of buggy chip, and if chip is not buggy,
    > this uses fast normal version instead of slow workaround version.
    >
    > If chip is buggy, warnings "pmtmr is slow". But sounds like there is
    > gray zone. I found the PIIX4 errata, but I couldn't find the ICH4
    > errata. But some motherboard seems to have problem.
    >
    > So, if found a ICH4, also warnings, and uses a workaround version. If
    > user's ICH4 is good actually, user can specify the "pmtmr_good" boot
    > parameter to use fast version.
    >
    > ...
    >
    > +static int __init pmtmr_bug_check(void)
    > +{
    > + static struct pci_device_id gray_list[] __initdata = {
    > + /* these chipsets may have bug. */
    > + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0) },
    > + { },
    > + };
    >
    > ...
    >
    > + dev = pci_get_device(PCI_VENDOR_ID_INTEL,
    > + PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
    >
    > ...
    >
    > +device_initcall(pmtmr_bug_check);

    Can this code use the PCI quirk infrastructure?
    -
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