ARM: smp_twd: add device tree support

Add bindings to support DT discovery of the ARM Timer Watchdog
(aka TWD). Only the timer side is converted by this patch.

Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index 16c89b793f90..8047e6e580b6 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -40,4 +40,12 @@ struct twd_local_timer name __initdata = {	\
 
 int twd_local_timer_register(struct twd_local_timer *);
 
+#ifdef CONFIG_HAVE_ARM_TWD
+void twd_local_timer_of_register(void);
+#else
+static inline void twd_local_timer_of_register(void)
+{
+}
+#endif
+
 #endif