diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2012-10-22 09:17:24 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-10-22 14:34:40 (GMT) |
| commit | ad17a26e2273d18d27fcbb4a8d8a341ebb2d721f (patch) | |
| tree | ed37e8698e7c580e4323a2f597397b7af7d76863 | |
| parent | 5f40b909728ad784eb43aa309d3c4e9bdf050781 (diff) | |
| download | linux-ad17a26e2273d18d27fcbb4a8d8a341ebb2d721f.tar.xz | |
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 <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/smp_twd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index e1f9069..b22d700 100644 --- 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 */ |