PNP devices can use shared interrupts, so check to see whether we'll need SA_SHIRQ for request_irq(). The builtin PDH UART on the HP rx8640 is an example of an ACPI/PNP device that uses a shareable level-triggered, active-low interrupt. The interrupt can be shared in very large I/O configurations or by artificially lowering IA64_DEF_LAST_DEVICE_VECTOR. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> Index: as3877/drivers/serial/8250_pnp.c =================================================================== --- as3877.orig/drivers/serial/8250_pnp.c 2006-06-30 10:44:09.000000000 -0600 +++ as3877/drivers/serial/8250_pnp.c 2006-06-30 11:44:18.000000000 -0600 @@ -431,6 +431,8 @@ #endif port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; + if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE) + port.flags |= UPF_SHARE_IRQ; port.uartclk = 1843200; port.dev = &dev->dev; - 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
