V4L/DVB (6247): Fix bug #8689: Fixes IR stop/start during suspend/resume

IR workqueue should be disabled during suspend. This avoids some troubles, like
the one reported on bug #8689:

"The Hauppauge HVR 1100 ir-remote control does not work after resume from
suspend to ram or disk."

This patch disables IR before suspending, re-enabling it after resume.

Thanks to Peter Poklop <Peter.Poklop@gmx.at> for reporting it and helping with
the fix.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Reviewed-by: Peter Poklop <Peter.Poklop@gmx.at>
diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c
index 78adf4d..e52de39 100644
--- a/drivers/media/video/cx88/cx88-input.c
+++ b/drivers/media/video/cx88/cx88-input.c
@@ -158,7 +158,7 @@
 	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 }
 
-static void cx88_ir_start(struct cx88_core *core, struct cx88_IR *ir)
+void cx88_ir_start(struct cx88_core *core, struct cx88_IR *ir)
 {
 	if (ir->polling) {
 		setup_timer(&ir->timer, ir_timer, (unsigned long)ir);
@@ -172,7 +172,7 @@
 	}
 }
 
-static void cx88_ir_stop(struct cx88_core *core, struct cx88_IR *ir)
+void cx88_ir_stop(struct cx88_core *core, struct cx88_IR *ir)
 {
 	if (ir->sampling) {
 		cx_write(MO_DDSCFG_IO, 0x0);