ARM: omap: update clock source registration

In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new
interfaces were added which simplify (and optimize) the selection of the
divisor shift/mult constants.  Switch over to using this new interface.

Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index 155fe43..8f149f5 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -102,7 +102,6 @@
 	.rating		= 250,
 	.read		= omap_32k_read_dummy,
 	.mask		= CLOCKSOURCE_MASK(32),
-	.shift		= 10,
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -167,12 +166,9 @@
 		if (sync_32k_ick)
 			clk_enable(sync_32k_ick);
 
-		clocksource_32k.mult = clocksource_hz2mult(32768,
-					    clocksource_32k.shift);
-
 		offset_32k = clocksource_32k.read(&clocksource_32k);
 
-		if (clocksource_register(&clocksource_32k))
+		if (clocksource_register_hz(&clocksource_32k, 32768))
 			printk(err, clocksource_32k.name);
 	}
 	return 0;