Commit b7a9776c authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Jonathan Cameron

iio: trigger: stm32-timer: fix a corner case to write preset

Balance timer start routine that sets ARPE: clear it in stop routine.
This fixes a corner case, when timer is used successively as trigger
(with sampling_frequency start/stop routines), then as a counter
(with preset).

Fixes: 93fbe91b ("iio: Add STM32 timer trigger driver")
Signed-off-by: default avatarFabrice Gasnier <>
Cc: <>
Signed-off-by: default avatarJonathan Cameron <>
parent 0a56eabc
......@@ -174,6 +174,7 @@ static void stm32_timer_stop(struct stm32_timer_trigger *priv)
/* Stop timer */
regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0);
regmap_write(priv->regmap, TIM_PSC, 0);
regmap_write(priv->regmap, TIM_ARR, 0);
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