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| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2017-08-03 12:22:17 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-08-20 17:21:47 +0300 |
| commit | a359bb2a55f384bb93349ddf9d30b20b37e02e8a (patch) | |
| tree | 35143eabceeb0d608417a179bb07c2964d818afa /drivers | |
| parent | fdd0d32eb95f135041236a6885d9006315aa9a1d (diff) | |
| download | linux-a359bb2a55f384bb93349ddf9d30b20b37e02e8a.tar.xz | |
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: 9eba381 ("iio: make stm32 trigger driver use
INDIO_HARDWARE_TRIGGERED mode")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/trigger/stm32-timer-trigger.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c index 14e6eb04bbb0..25ad6abfee22 100644 --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -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 = { |