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xtensa/esp32-s2/rttimer: Disable alarm before setting a new value and enabling it

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This commit is contained in:
Sara Souza
2021-09-28 18:14:56 -03:00
committed by Gustavo Henrique Nihei
parent 33f2d46bff
commit 8a142f474e
1 changed files with 4 additions and 0 deletions
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arch/xtensa/src/esp32s2/esp32s2_rt_timer.c
+4
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@@ -176,6 +176,7 @@ static void start_rt_timer(struct rt_timer_s *timer,
{ {
/* Reset the hardware timer alarm */ /* Reset the hardware timer alarm */
ESP32S2_TIM_SETALRM(priv->timer, false);
ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(timer->alarm)); ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(timer->alarm));
ESP32S2_TIM_SETALRM(priv->timer, true); ESP32S2_TIM_SETALRM(priv->timer, true);
} }
@@ -254,6 +255,7 @@ static void stop_rt_timer(struct rt_timer_s *timer)
list); list);
alarm = next_timer->alarm; alarm = next_timer->alarm;
ESP32S2_TIM_SETALRM(priv->timer, false);
ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(alarm)); ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(alarm));
ESP32S2_TIM_SETALRM(priv->timer, true); ESP32S2_TIM_SETALRM(priv->timer, true);
} }
@@ -473,6 +475,8 @@ static int rt_timer_isr(int irq, void *context, void *arg)
timer = container_of(priv->runlist.next, timer = container_of(priv->runlist.next,
struct rt_timer_s, list); struct rt_timer_s, list);
alarm = timer->alarm; alarm = timer->alarm;
ESP32S2_TIM_SETALRM(priv->timer, false);
ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(alarm)); ESP32S2_TIM_SETALRVL(priv->timer, USEC_TO_CYCLES(alarm));
} }
} }