On Thu, Apr 14, 2016 at 10:45:21AM +0200, Linus Walleij wrote: > Some types of ST Sensors can be connected to the same IRQ line > as other peripherals using open drain. Add a device tree binding > and a sensor data property to flip the right bit in the interrupt > control register to enable open drain mode on the INT line. > > If the line is set to be open drain, also tag on IRQF_SHARED > to the IRQ flags when requesting the interrupt, as the whole > point of using open drain interrupt lines is to share them with > more than one peripheral (wire-or). > > Cc: devicetree@xxxxxxxxxxxxxxx > Cc: Giuseppe Barba <giuseppe.barba@xxxxxx> > Cc: Denis Ciocca <denis.ciocca@xxxxxx> > Cc: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > --- > ChangeLog v4->v5: > - Rename DT bool property int-pin-open-drain to drive-mode-open-drain > reusing the pin control subsystem binding. > ChangeLog v3->v4: > - Rename DT bool property st,int-pin-open-drain to int-pin-open-drain > - Rob Herring ACKed st,int-pin-open-drain but not including his ACK > on this even though it's close > ChangeLog v2->v3: > - Rebase on top of the patches fixing the other issues (handling > IRQ status check and channel reading bug). > ChangeLog v1->v2: > - Rebased to fit the new patch order. > --- > Documentation/devicetree/bindings/iio/st-sensors.txt | 4 ++++ Acked-by: Rob Herring <rob@xxxxxxxxxx> > drivers/iio/accel/st_accel_core.c | 8 ++++++++ > drivers/iio/common/st_sensors/st_sensors_core.c | 20 ++++++++++++++++++++ > drivers/iio/common/st_sensors/st_sensors_trigger.c | 13 +++++++++++++ > drivers/iio/pressure/st_pressure_core.c | 8 ++++++++ > include/linux/iio/common/st_sensors.h | 6 ++++++ > include/linux/platform_data/st_sensors_pdata.h | 2 ++ > 7 files changed, 61 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
