On IBM Bartolo machines, cards in 00:09.0 are defunct (if use interrupts). DSDT says that this slot (with function 0, i.e. pin A) is routed to \_SB_.PCI0.PIB_.LNKB. But it's not, it's wired to LNKC, so interrupts are misrouted. Add a quirk for this to workaround the issue. References: https://bugzilla.novell.com/show_bug.cgi?id=595683 References: https://bugzilla.kernel.org/show_bug.cgi?id=18092 --- Hi, as Robert Hancock suggested at: http://lkml.org/lkml/2010/9/7/206 I reported this in bugzilla (the link above). But I got only replies requesting another infos which I provided. Could anybody look into the bug and confirm whether this patch is correct or not. And if yes, could you apply that? --- Not-signed-off-by: Jiri Slaby <jslaby@xxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx> Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> --- drivers/acpi/pci_irq.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index f907cfb..e8fb00d 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -124,6 +124,18 @@ static const struct dmi_system_id hp_t5710[] = { { } }; +/* https://bugzilla.novell.com/show_bug.cgi?id=595683 */ +static const struct dmi_system_id ibm_bartolo[] = { + { + .ident = "IBM Bartolo", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "IBM CORPORATION"), + DMI_MATCH(DMI_PRODUCT_NAME, "4810320"), + }, + }, + { } +}; + struct prt_quirk { const struct dmi_system_id *system; unsigned int segment; @@ -151,6 +163,9 @@ static const struct prt_quirk prt_quirks[] = { { hp_t5710, 0, 0, 1, PCI_INTX_PIN('A'), "\\_SB_.PCI0.LNK1", "\\_SB_.PCI0.LNK3"}, + { ibm_bartolo, 0, 0, 9, PCI_INTX_PIN('A'), + "\\_SB_.PCI0.PIB_.LNKB", + "\\_SB_.PCI0.PIB_.LNKC"}, }; static void do_prt_fixups(struct acpi_prt_entry *entry, -- 1.7.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
