Configure the two accelerometers sharing GPIO line 82 as:
- Open drain so that they can share the same interrupt line.
Configure the corresponding interrupt pin:
- Trigger on the falling edge since open drain implies that we
do not actively drive the line high, but we will actively drive
it low to generate interrupts and then it moves from high to low
i.e. a falling edge.
- Pulled up so the line will be biased to high unless an IRQ
is active on any device on the line, and thus it goes high
again after the interrupt is deasserted.
Cc: linux-iio@vger.kernel.org
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use the <dt-bindings/gpio/gpio.h> header instead of using
hardcoded values for the GPIO flags. Eradicate the totally
bogus "0x4" flag used and set that to GPIO_ACTIVE_HIGH as is
proper, switch the inverted card detect on the Snowball to
flag using GPIO_ACTIVE_LOW instead of using the MMC-specific
inversion flag.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the Synaptics RMI4 touchscreen to the Ux500 TVK
user interface board. Tested on the U8500 HREFv60plus with
the TVK UIB.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
The U8500 HREF TVK board actually has a large set of sensors, with
their interrupt lines connected using open drain electronics.
Configure the two accelerometers and two magnetometers so we get
all sensors to actually probe on boot.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Though the keyboard and other driver will continue to support the legacy
"gpio-key,wakeup", "linux,wakeup" boolean property to enable the wakeup
source, "wakeup-source" is the new standard binding.
This patch replaces all the legacy wakeup properties with the unified
"wakeup-source" property in order to avoid any futher copy-paste
duplication.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The ST sensors on the Ux500 boards were not utilizing the IRQs
for data ready sample triggers. Enable this by assigning the
right GPIO lines and interrupt lines (when the GPIO lines are
used for IRQs) to the accelerometer, gyro and magnetometer
sensors.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The magnetometer found on the Ux500 TVK and Snowball boards
is a LSM303DLH not a LSM303DLM, small differences but still
different. Put in the right compatible strings and things start
working smoothly.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This converts the Nomadik pin controller and all associated device
trees to use the standard, generic config bindings for pin controllers.
There are no such device trees deployed in the wild so this is
safe to do to set a good example.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the STMicroelectonics MEMS sensor devices to the Ux500
family device trees:
- Accelerometer
- Magnetometer
- Gyroscope
- Pressure (barometer)
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This moves over the configuration of the GPIO keys (used for
proximity sensor and Hall effect sensor) from the static pin
configuration file to the device tree. As part of the exercise,
implement the GPIO keys properly in a per-UIB file as this
setup actually differs with each UIB.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This moves the input-pulled-up setting for GPIO217 as used
on the HREFs prior to v60 from the boardfile to the device
tree. GPIO218 is only used with the TVK UIB so move it to
that .dtsi file.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The TC3589x devices appearing in the ST Ericsson device trees
are adjusted to use the new binding so this is in a good shape,
and we add the keypad on the TVK1281618 UIB so this is working
again.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The TVK1281618 UIB has a TC35892 GPIO expander on it, which has
in the past probably been confused with the GPIO expander on the
older HREF plus previous to v60, which is on an entirely different
part of the system with another I2C address. Register the expander
in the right place.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Create two different UIB (User Interface Board) include files: one per
UIB simply. The include files now only handle the devices on that
very UIB.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij
Sudeep Holla