[PATCH] 3/3 handle level triggered irqs on dbox2 (2.4.22-pre6)

[Andreas Oberritter <obi@saftware.de>]

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This one is for components of the dbox2 which cannot be set up to do
edge triggered irqs because no documentation is available. #ifdef
CONFIG_DBOX2 is put around it because other boards don't seem to need
it. Is there a better way to handle level based interrupts?

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diff -Naur linux-2.4.22-pre6/arch/ppc/kernel/irq.c linux-2.4.22-pre6-dbox2/arch/ppc/kernel/irq.c
--- linux-2.4.22-pre6/arch/ppc/kernel/irq.c	2003-06-13 16:51:31.000000000 +0200
+++ linux-2.4.22-pre6-dbox2/arch/ppc/kernel/irq.c	2003-07-15 09:16:34.000000000 +0200
@@ -507,6 +507,14 @@
 		else if (irq_desc[irq].handler->enable)
 			irq_desc[irq].handler->enable(irq);
 	}
+	
+#ifdef CONFIG_DBOX2
+	if (action) {
+	    if (action->flags & SA_ONESHOT)
+		disable_irq_nosync(irq);
+	}
+#endif
+
 	spin_unlock(&desc->lock);
 }