diff options
| author | Alexandru Ardelean <alexandru.ardelean@analog.com> | 2020-02-10 15:26:01 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-03-08 17:28:29 +0000 |
| commit | 3f17ada8f38c57b6c81d41db6d911932b280d5b5 (patch) | |
| tree | 50225146acb288823b582ff52f472863a25e2d5c /include/linux/iio | |
| parent | e914cfdf12ab1a3f7339c95a65c8b5743c951fa6 (diff) | |
iio: imu: adis: add unlocked __adis_initial_startup()
This change splits the __adis_initial_startup() away from
adis_initial_startup(). The unlocked version can be used in certain calls
during probe, where races won't happen since the ADIS driver may not be
registered yet with IIO.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
| -rw-r--r-- | include/linux/iio/imu/adis.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index d2fcf45b4cef..15e75670f923 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -297,6 +297,7 @@ static inline int adis_read_reg_32(struct adis *adis, unsigned int reg, int adis_enable_irq(struct adis *adis, bool enable); int __adis_check_status(struct adis *adis); +int __adis_initial_startup(struct adis *adis); static inline int adis_check_status(struct adis *adis) { @@ -309,7 +310,17 @@ static inline int adis_check_status(struct adis *adis) return ret; } -int adis_initial_startup(struct adis *adis); +/* locked version of __adis_initial_startup() */ +static inline int adis_initial_startup(struct adis *adis) +{ + int ret; + + mutex_lock(&adis->state_lock); + ret = __adis_initial_startup(adis); + mutex_unlock(&adis->state_lock); + + return ret; +} int adis_single_conversion(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, unsigned int error_mask, |