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Commit a359bb2a authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Jonathan Cameron
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iio: trigger: stm32-timer: fix get trigger mode 



Fix reading trigger mode, when other bit-fields are set. SMCR register
value must be masked to read SMS (slave mode selection) only.

Fixes: 9eba381b ("iio: make stm32 trigger driver use
INDIO_HARDWARE_TRIGGERED mode")

Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent fdd0d32e

drivers/iio/trigger/stm32-timer-trigger.c

+1 −1
Original line number Diff line number Diff line
@@ -485,7 +485,7 @@ static int stm32_get_trigger_mode(struct iio_dev *indio_dev, 


	regmap_read(priv->regmap, TIM_SMCR, &smcr);



	return smcr == TIM_SMCR_SMS ? 0 : -EINVAL;

	return (smcr & TIM_SMCR_SMS) == TIM_SMCR_SMS ? 0 : -EINVAL;

}



static const struct iio_enum stm32_trigger_mode_enum = {