iio: adc: ti-ads1015: use iio_device_claim_direct_mode()

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While the iio buffer for the ti-ads1015 driver is enabled, reading the
raw ADC channel data is restricted.  We usually use the
iio_device_claim_direct_mode()/iio_device_release_direct_mode() pair for
that.

This change consequently reverses the locking order for the driver's
private lock and indio_dev->mlock which acquired by
iio_device_claim_direct_mode() internally. But it's safe because there is
no other dependency between these locks.

Cc: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Akinobu Mita 2017-07-21 00:24:26 +09:00 • committed by Jonathan Cameron

parent 4de43d2506

commit 47d8cf41d5

1 changed files with 7 additions and 8 deletions

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drivers/iio/adc/ti-ads1015.c

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