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ARM: twd: ensure timer reload is reprogrammed on entry to periodic mode

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Ensure that the twd timer reload value is reprogrammed each time we
enter periodic mode.  This ensures that the reload value is always
reset correctly.

Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-01-25 10:35:36 +00:00
parent baaece2245
commit 03399c1cb4
1 changed files with 2 additions and 5 deletions
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7
arch/arm/kernel/smp_twd.c
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@ -36,6 +36,7 @@ static void twd_set_mode(enum clock_event_mode mode,
/* 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);
break;
case CLOCK_EVT_MODE_ONESHOT:
/* period set, and timer enabled in 'next_event' hook */
@ -81,7 +82,7 @@ int twd_timer_ack(void)
static void __cpuinit twd_calibrate_rate(void)
{
unsigned long load, count;
unsigned long count;
u64 waitjiffies;
/*
@ -116,10 +117,6 @@ static void __cpuinit twd_calibrate_rate(void)
printk("%lu.%02luMHz.\n", twd_timer_rate / 1000000,
(twd_timer_rate / 1000000) % 100);
}
load = twd_timer_rate / HZ;
__raw_writel(load, twd_base + TWD_TIMER_LOAD);
}
/*