From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 22 Nov 2011 21:41:24 +0000 (-0800)
Subject: serial/8250_pci: setup-quirk workaround for the kt serial controller
X-Git-Tag: v3.3-rc1~154^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=448ac154c957c4580531fa0c8f2045816fe2f0e7;p=pandora-kernel.git

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>
---

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