serial/8250_pci: init-quirk msi support for kt serial controller
authorDan Williams <dan.j.williams@intel.com>
Tue, 22 Nov 2011 21:41:29 +0000 (13:41 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sun, 27 Nov 2011 04:11:20 +0000 (20:11 -0800)
The semantics of UPF_IIR_ONCE (once per serial irq) are only guaranteed
if the kt irq is not shared (once per serial isr in the shared case ==
potentially unwanted reads of the IIR).

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/serial/8250_pci.c

Simple merge