Only provide implementations for optional operations if needed. This
patch deletes quite a few dummy `pin_interrupt_configure` ops (now
optional), and adjusts ifdeffery on some drivers so that optional ops
are only provided if they implement real functionality.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Remove all init functions that do nothing, and provide a `NULL` to
*DEVICE*DEFINE* macros.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
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>
Refactors all of the on-chip GPIO drivers to use a shared driver class
initialization priority configuration, CONFIG_GPIO_INIT_PRIORITY, to
allow configuring GPIO drivers separately from other devices. This is
similar to other driver classes like I2C and SPI.
Most drivers previously used CONFIG_KERNEL_INIT_PRIORITY_DEFAULT or
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, therefore the default for this new
option is the lower of the two, which means earlier initialization.
Driver-specific options for off-chip I2C- or SPI-based GPIO drivers are
left intact because they often need to be initialized at a different
priority than on-chip GPIO drivers.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
Add single-register MMIO GPIO driver for complex cases where
only several fields in register belong to GPIO lines and each GPIO
line owns a field with different length and on/off value.
Such CREG GPIOs are used in Synopsys em_starterkit and HSDK boards.
Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
