ARM: sa11x0/pxa: acquire timer rate from the clock rate

As both pxa and sa1100 provide a clock to the timer, the rate can be
inferred from the clock rather than hard encoded in a functional call.

This patch changes the pxa timer to have a mandatory clock which is used
as the timer rate.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
diff --git a/include/clocksource/pxa.h b/include/clocksource/pxa.h
index 1efbe5a..a9a0f03 100644
--- a/include/clocksource/pxa.h
+++ b/include/clocksource/pxa.h
@@ -12,7 +12,6 @@
 #ifndef _CLOCKSOURCE_PXA_H
 #define _CLOCKSOURCE_PXA_H
 
-extern void pxa_timer_nodt_init(int irq, void __iomem *base,
-			   unsigned long clock_tick_rate);
+extern void pxa_timer_nodt_init(int irq, void __iomem *base);
 
 #endif