ARM: 7560/1: SMP_TWD: use DIV_ROUND_CLOSEST() for periodic mode

The periodic mode is currently calculated by a simple division but we should pay more attention to our integer arithmetics. Also delete a comment that does not make any sense. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Russell King <[email protected]>
abhishekpant93 · Oct 22, 2012 · ad17a26 · ad17a26
1 parent 5f40b90
commit ad17a26
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
@@ -42,10 +42,10 @@ static void twd_set_mode(enum clock_event_mode mode,
 
 	switch (mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
-		/* timer load already set up */
 		ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
 			| TWD_TIMER_CONTROL_PERIODIC;
-		__raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD);
+		__raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
+			twd_base + TWD_TIMER_LOAD);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* period set, and timer enabled in 'next_event' hook */