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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-04-02 19:45:38 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-04-07 08:36:39 +0100 |
| commit | 0be49bdedcfd1e6afd838a4f34cc310b8bbb0c9a (patch) | |
| tree | eb395cd74b0d9fda31b18253f55a71ebc0b0dac4 /drivers/iio | |
| parent | aefaee4ec899b6d562a50972ce3c0dd0b38d7d98 (diff) | |
| download | linux-stable-0be49bdedcfd1e6afd838a4f34cc310b8bbb0c9a.tar.gz linux-stable-0be49bdedcfd1e6afd838a4f34cc310b8bbb0c9a.tar.bz2 linux-stable-0be49bdedcfd1e6afd838a4f34cc310b8bbb0c9a.zip | |
iio:adc:ad7766: Use new IRQF_NO_AUTOEN to reduce boilerplate
As iio_poll_trigger() is safe against spurious interrupts when the
trigger is not enabled, this is not a fix despite looking like
a race. It is nice to simplify the code however so the interrupt
is never enabled in the first place.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
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/20210402184544.488862-2-jic23@kernel.org
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ad7766.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c index 829a3426f235..1e41759f3ee5 100644 --- a/drivers/iio/adc/ad7766.c +++ b/drivers/iio/adc/ad7766.c @@ -255,18 +255,17 @@ static int ad7766_probe(struct spi_device *spi) ad7766->trig->ops = &ad7766_trigger_ops; iio_trigger_set_drvdata(ad7766->trig, ad7766); - ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq, - IRQF_TRIGGER_FALLING, dev_name(&spi->dev), - ad7766->trig); - if (ret < 0) - return ret; - /* * The device generates interrupts as long as it is powered up. * Some platforms might not allow the option to power it down so - * disable the interrupt to avoid extra load on the system + * don't enable the interrupt to avoid extra load on the system */ - disable_irq(spi->irq); + ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq, + IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN, + dev_name(&spi->dev), + ad7766->trig); + if (ret < 0) + return ret; ret = devm_iio_trigger_register(&spi->dev, ad7766->trig); if (ret) |