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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
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1 changed files with 8 additions and 8 deletions
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@ -655,19 +655,19 @@ static int scd30_setup_trigger(struct iio_dev *indio_dev)
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indio_dev->trig = iio_trigger_get(trig);
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/*
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* Interrupt is enabled just before taking a fresh measurement
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* and disabled afterwards. This means we need to ensure it is not
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* enabled here to keep calls to enable/disable balanced.
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*/
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ret = devm_request_threaded_irq(dev, state->irq, scd30_irq_handler,
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scd30_irq_thread_handler, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
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scd30_irq_thread_handler,
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IRQF_TRIGGER_HIGH | IRQF_ONESHOT |
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IRQF_NO_AUTOEN,
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indio_dev->name, indio_dev);
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if (ret)
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dev_err(dev, "failed to request irq\n");
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/*
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* Interrupt is enabled just before taking a fresh measurement
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* and disabled afterwards. This means we need to disable it here
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* to keep calls to enable/disable balanced.
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*/
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disable_irq(state->irq);
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return ret;
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}
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