ACPI supplies a "shareable" indication, but PNPACPI ignores it. If a PNP device uses a shared interrupt, request_irq() fails because the PNP driver can't tell whether to supply SA_SHIRQ. This patch allows PNP drivers to test (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE) Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Index: work-mm7/include/linux/ioport.h =================================================================== --- work-mm7.orig/include/linux/ioport.h 2006-06-30 11:52:21.000000000 -0600 +++ work-mm7/include/linux/ioport.h 2006-06-30 12:18:41.000000000 -0600 @@ -55,6 +55,7 @@ #define IORESOURCE_IRQ_LOWEDGE (1<<1) #define IORESOURCE_IRQ_HIGHLEVEL (1<<2) #define IORESOURCE_IRQ_LOWLEVEL (1<<3) +#define IORESOURCE_IRQ_SHAREABLE (1<<4) /* ISA PnP DMA specific bits (IORESOURCE_BITS) */ #define IORESOURCE_DMA_TYPE_MASK (3<<0) Index: work-mm7/drivers/pnp/pnpacpi/rsparser.c =================================================================== --- work-mm7.orig/drivers/pnp/pnpacpi/rsparser.c 2006-06-30 11:52:18.000000000 -0600 +++ work-mm7/drivers/pnp/pnpacpi/rsparser.c 2006-06-30 12:18:41.000000000 -0600 @@ -74,7 +74,7 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, u32 gsi, - int triggering, int polarity) + int triggering, int polarity, int shareable) { int i = 0; int irq; @@ -95,6 +95,9 @@ return; } + if (shareable) + res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE; + res->irq_resource[i].start = irq; res->irq_resource[i].end = irq; pcibios_penalize_isa_irq(irq, 1); @@ -197,7 +200,8 @@ pnpacpi_parse_allocated_irqresource(res_table, res->data.irq.interrupts[i], res->data.irq.triggering, - res->data.irq.polarity); + res->data.irq.polarity, + res->data.irq.sharable); } break; @@ -263,7 +267,8 @@ pnpacpi_parse_allocated_irqresource(res_table, res->data.extended_irq.interrupts[i], res->data.extended_irq.triggering, - res->data.extended_irq.polarity); + res->data.extended_irq.polarity, + res->data.extended_irq.sharable); } break; - 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