On Fri, Jun 30, 2006 at 12:58:37PM -0600, Bjorn Helgaas wrote: > 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> Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> > 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; > -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - 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
