diff options
| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-04-02 19:45:42 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-04-07 08:36:39 +0100 |
| commit | dbb8f20d839b127a124ff222fd3dae27f0cb554e (patch) | |
| tree | 8ef189b56b6c69208288e8edce8146483315634f /drivers | |
| parent | ff2293ea9c17a85ca6da557a5c123b441efd46a3 (diff) | |
| download | linux-dbb8f20d839b127a124ff222fd3dae27f0cb554e.tar.bz2 | |
iio:chemical:scd30: Use IRQF_NO_AUTOEN to avoid irq request then disable
This new flag cleanly avoids the need for a dance where we request the
interrupt only to immediately disabling it by ensuring it is not
auto-enabled in the first place.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Tomasz Duszynski <tomasz.duszynski@octakon.com>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-6-jic23@kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/chemical/scd30_core.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/iio/chemical/scd30_core.c b/drivers/iio/chemical/scd30_core.c index 261c277ac4a5..d89f117dd0ef 100644 --- a/drivers/iio/chemical/scd30_core.c +++ b/drivers/iio/chemical/scd30_core.c @@ -655,19 +655,19 @@ static int scd30_setup_trigger(struct iio_dev *indio_dev) indio_dev->trig = iio_trigger_get(trig); + /* + * Interrupt is enabled just before taking a fresh measurement + * and disabled afterwards. This means we need to ensure it is not + * enabled here to keep calls to enable/disable balanced. + */ ret = devm_request_threaded_irq(dev, state->irq, scd30_irq_handler, - scd30_irq_thread_handler, IRQF_TRIGGER_HIGH | IRQF_ONESHOT, + scd30_irq_thread_handler, + IRQF_TRIGGER_HIGH | IRQF_ONESHOT | + IRQF_NO_AUTOEN, indio_dev->name, indio_dev); if (ret) dev_err(dev, "failed to request irq\n"); - /* - * Interrupt is enabled just before taking a fresh measurement - * and disabled afterwards. This means we need to disable it here - * to keep calls to enable/disable balanced. - */ - disable_irq(state->irq); - return ret; } |