linux/drivers/iio/common/st_sensors
Linus Walleij 97865fe413 iio: st_sensors: verify interrupt event to status
This makes all ST sensor drivers check that they actually have
new data available for the requested channel(s) before claiming
an IRQ, by reading the status register (which is conveniently
the same for all ST sensors) and check that the channel has new
data before proceeding to read it and fill the buffer.

This way sensors can share an interrupt line: it can be flaged
as shared and then the sensor that did not fire will return
NO_IRQ, and the sensor that fired will handle the IRQ and
return IRQ_HANDLED.

Cc: Giuseppe Barba <giuseppe.barba@st.com>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-19 19:58:12 +01:00
..
Kconfig
Makefile
st_sensors_buffer.c iio: st_sensors: verify interrupt event to status 2016-04-19 19:58:12 +01:00
st_sensors_core.c iio: st_sensors: support active-low interrupts 2016-01-10 12:35:32 +00:00
st_sensors_core.h iio: st_sensors: support active-low interrupts 2016-01-10 12:35:32 +00:00
st_sensors_i2c.c iio:common: Set the device pointer into ST common sensors library 2014-10-04 11:26:21 +01:00
st_sensors_spi.c iio: common: remove unnecessary sizeof(u8) 2014-12-12 12:28:25 +00:00
st_sensors_trigger.c iio: st_sensors: support active-low interrupts 2016-01-10 12:35:32 +00:00