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[v2,03/14] AT91: PIT: Use DIV_ROUND_CLOSEST to compute the cycles

Message ID 1404207208-14513-4-git-send-email-maxime.ripard@free-electrons.com (mailing list archive)
State New, archived
Headers show

Commit Message

Maxime Ripard July 1, 2014, 9:33 a.m. UTC 
Until now, the pit_cycle computation was dividing the rate by HZ, rounding to
the closest integer, but without using the appropriate macro.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/mach-at91/at91sam926x_time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index fd3170b65fbb..2e6f1a37ab90 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -252,7 +252,7 @@  void __init at91sam926x_pit_init(void)
 	if (IS_ERR(mck))
 		panic("AT91: PIT: Unable to get mck clk\n");
 	pit_rate = clk_get_rate(mck) / 16;
-	pit_cycle = (pit_rate + HZ/2) / HZ;
+	pit_cycle = DIV_ROUND_CLOSEST(pit_rate, HZ);
 	WARN_ON(((pit_cycle - 1) & ~AT91_PIT_PIV) != 0);
 
 	/* Initialize and enable the timer */