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The ST sensors can be used as a trigger for its own triggered buffer but it is also possible to use an external trigger: a HRTimer or even a different sensor (!) as trigger. In that case we should not pick the timestamp from our own interrupt top half even if it is active. This could practically happen if some other sensor is using the ST sensor as trigger but the ST sensor itself is using e.g. an HRTimer as trigger. So the trigger is on, but not used by us. We used to assume that whenever the hardware interrupt is turned on, we are using it for our own trigger, but this is an oversimplification. Handle this logically by using the iio_trigger_using_own() helper. Cc: Giuseppe Barba <giuseppe.barba@st.com> Cc: Denis Ciocca <denis.ciocca@st.com> Cc: Crestez Dan Leonard <leonard.crestez@intel.com> Cc: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> |
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.. | ||
Kconfig | ||
Makefile | ||
st_sensors_buffer.c | ||
st_sensors_core.c | ||
st_sensors_core.h | ||
st_sensors_i2c.c | ||
st_sensors_spi.c | ||
st_sensors_trigger.c |