V4L/DVB: cx23885: Move AV Core irq handling to a work handler

Interrupts from the AV Core are best handled by a workqueue handler
since many I2C transactions are required to service the AV Core
interrupt.  The AV_CORE PCI interrupt is disabled by the IRQ handler
and reenabled when the work handler is finished.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx23885/cx23885-av.h b/drivers/media/video/cx23885/cx23885-av.h
new file mode 100644
index 0000000..d2915c3
--- /dev/null
+++ b/drivers/media/video/cx23885/cx23885-av.h
@@ -0,0 +1,27 @@
+/*
+ *  Driver for the Conexant CX23885/7/8 PCIe bridge
+ *
+ *  AV device support routines - non-input, non-vl42_subdev routines
+ *
+ *  Copyright (C) 2010  Andy Walls <awalls@md.metrocast.net>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ *  02110-1301, USA.
+ */
+
+#ifndef _CX23885_AV_H_
+#define _CX23885_AV_H_
+void cx23885_av_work_handler(struct work_struct *work);
+#endif