Add few missing check on gpio_add_callback and gpio_add_callback_dt
calls, fixes a coverity warning.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Convert the XPT2046 driver to the input subsystem, change the api,
remove the callback and enable logic.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>