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ARM: at91: PIT: Use DIV_ROUND_CLOSEST to compute the cycles 

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>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Maxime Ripard 2014-07-01 11:33:16 +02:00 committed by Nicolas Ferre
parent 1bd59dbe53
commit 2d7fdbe23c
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-at91/at91sam926x_time.c
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@ -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 */