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| author | Stefan Brüns <[email protected]> | 2017-07-26 21:32:06 +0000 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2017-07-30 13:50:19 +0000 |
| commit | ff3aa88a4d61468baece3fc2bb54e2a3bea6360f (patch) | |
| tree | 963771037ce6cdcf0f27604070ad6eb2bccf7aae /drivers/iio/trigger/stm32-timer-trigger.c | |
| parent | iio: trigger: stm32-timer: add enable attribute (diff) | |
| download | kernel-ff3aa88a4d61468baece3fc2bb54e2a3bea6360f.tar.gz kernel-ff3aa88a4d61468baece3fc2bb54e2a3bea6360f.zip | |
iio: adc: ina219: Avoid underflow for sleeping time
Proper support for the INA219 lowered the minimum sampling period from
2*140us to 2*84us. Subtracting 200us later leads to an underflow and
an almost infinite udelay later.
Using a signed int for the sampling period provides sufficient range
(at most 2*8640*1024us), but catches the underflow when comparing with
buffer_us.
Fixes: 18edac2e22f4 ("iio: adc: Fix integration time/averaging for INA219/220")
Signed-off-by: Stefan Brüns <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'drivers/iio/trigger/stm32-timer-trigger.c')
0 files changed, 0 insertions, 0 deletions