Right now it is possible that some devices define 0 pinctrl states in
devicetree, because pinctrl-N entries may still be optional for backward
compatibility. If the programmer makes a mistake and forgets them,
application could experience runtime crashes because
pinctrl_lookup_states assumes you have at least one state, so it does
not perform any bounds checking. Change the while condition so that it
is skipped if states count is zero.
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>
Add support for dynamic pin control, that is, allow to change device pin
configuration at runtime. Because no device de-initialization is
available yet, this API has limited usage options, e.g. modify pin
configuration at early boot stage (before device driver is initialized)
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Initial skeleton for pinctrl drivers. This patch includes common
infrastructure and API definitions for pinctrl drivers.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
