[PATCH 1/2] ARM: OMAP2+: dmtimer: allow counter to be set at anytime.

From: NeilBrown
Date: Thu Oct 24 2013 - 03:01:03 EST


It is perfectly appropriate to set the counter register
when the timer isn't running. The value set will be where
the counter starts counting from.

Signed-off-by: NeilBrown <neilb@xxxxxxx>
---
arch/arm/plat-omap/dmtimer.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 869254c..d80d2c4 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -752,15 +752,16 @@ EXPORT_SYMBOL_GPL(omap_dm_timer_read_counter);

int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
{
- if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {
- pr_err("%s: timer not available or enabled.\n", __func__);
+ if (unlikely(!timer))
return -EINVAL;
- }
+
+ omap_dm_timer_enable(timer);

omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, value);

/* Save the context */
timer->context.tcrr = value;
+ omap_dm_timer_disable(timer);
return 0;
}
EXPORT_SYMBOL_GPL(omap_dm_timer_write_counter);


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