Check the return values from the I2C API functions called in init() and
fail driver initialization if unsuccessful.
Fixes: #66827
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
The gpio_pca953x gpio driver doesn't have
the input latch and interrupt mask
configuration which causes a lack of accessing
and using those features on an gpio expander
device. Fix it by adding input latch and
interrupt mask configurations in this driver.
Signed-off-by: Vudang Thaihai <vudang.thaihai@brillpower.com>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Reserve the upper 8 bits of gpio_dt_flags_t for SoC specific flags and
move the non-standard, hardware-specific GPIO devicetree flags (IO
voltage level, drive strength, debounce filter) from the generic
dt-bindings/gpio/gpio.h header to SoC specific dt-bindings headers.
Some of the SoC specific dt-bindings flags take up more bits than
necessary in order to retain backwards compatibility with the deprecated
GPIO flags. The width of these fields can be reduced/optimized once the
deprecated flags are removed.
Remove hardcoded use of GPIO_INT_DEBOUNCE in GPIO client drivers. This
flag can now be set in the devicetree for boards/SoCs with debounce
filter support. The SoC specific debounce flags have had the _INT part
of their name removed since these flag must be passed to
gpio_pin_configure(), not gpio_pin_interrupt_configure().
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
Introduce combined GPIO drive strength flags for GPIO controllers only
supporting either default or alternative drive strength regardless if
the pin is driven to a high or a low level.
Fixes: #30329
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
The Texas Instruments TCA9538 is an 8 pin GPIO port expander.
It operates on an I2C bus with 2 configurable address pins. The
device has an interrupt output pin that is asserted when any pin
configured as an input changes state.
Added under the PCA953X name to allow other similar parts to
use the same driver.
Signed-off-by: Kieran Mackey <kieran.mackey@lairdconnect.com>
