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(parent: 38a794d) | patch
serial/8250_pci: setup-quirk workaround for the kt serial controller
authorDan Williams <dan.j.williams@intel.com>
Tue, 22 Nov 2011 21:41:24 +0000 (13:41 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sun, 27 Nov 2011 04:11:20 +0000 (20:11 -0800)
commitc167169163626d012afe162928dcacd49443c278
tree45b5f8c1108baa78841b9fc59a9afdfd67a6c712tree | snapshot
parent38a794db9de6b902f3fd328fba3cd609576816a4commit | diff
serial/8250_pci: setup-quirk workaround for the kt serial controller

Workaround dropped notifications in the iir register.  Prevent reads
coincident with new interrupt notifications by reading the iir at most
once per interrupt.

Reported-by: Nhan H Mai <nhan.h.mai@intel.com>
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.c diff | blob | history
drivers/tty/serial/8250_pci.c diff | blob | history
include/linux/serial_core.h diff | blob | history
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