smc911x: Add IRQ polarity configuration

Platforms like ARM Ltd's RealView require the IRQ polarity bit to be set
for the SMC9118 chip. This patch allows the dynamic configuration via
the smc911x_platdata structure.

This patch also changes the smc91x_platdata structure name to the
correct smc911x_platdata in the smc911x_drv_probe() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/include/linux/smc911x.h b/include/linux/smc911x.h
index b58f54c..521f371 100644
--- a/include/linux/smc911x.h
+++ b/include/linux/smc911x.h
@@ -7,6 +7,7 @@
 struct smc911x_platdata {
 	unsigned long flags;
 	unsigned long irq_flags; /* IRQF_... */
+	int irq_polarity;
 };
 
 #endif /* __SMC911X_H__ */