diff options
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 0e3b8d0ff06..cd0a204d96d 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -85,6 +85,16 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, if (i >= PNP_MAX_IRQ) return; +#ifdef CONFIG_X86 + if (gsi < 16 && (triggering != ACPI_EDGE_SENSITIVE || + polarity != ACPI_ACTIVE_HIGH)) { + pnp_warn("BIOS BUG: legacy PNP IRQ %d should be edge trigger, " + "active high", gsi); + triggering = ACPI_EDGE_SENSITIVE; + polarity = ACPI_ACTIVE_HIGH; + } +#endif + res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag res->irq_resource[i].flags |= irq_flags(triggering, polarity); irq = acpi_register_gsi(gsi, triggering, polarity); |