pins: Explicitly pass can_invert and can_pullup to lookup_pin()

Don't pass pin_type to lookup_pin() - instead, if a pin can be
inverted or can have a pullup, then the caller must explicitly specify
that when calling lookup_pin().  This simplifies the code for the
cases where it is not valid to invert or pullup.

Explicitly pass the pin_type to setup_pin() and have ppins.setup_pin()
apply default pullup and invert flags.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/mcu.py

@@ -610,10 +610,9 @@ class MCU:
         self.register_msg(self._handle_mcu_stats, 'stats')
         self._check_config()
     # Config creation helpers
-    def setup_pin(self, pin_params):
+    def setup_pin(self, pin_type, pin_params):
         pcs = {'stepper': MCU_stepper, 'endstop': MCU_endstop,
                'digital_out': MCU_digital_out, 'pwm': MCU_pwm, 'adc': MCU_adc}
-        pin_type = pin_params['type']
         if pin_type not in pcs:
             raise pins.error("pin type %s not supported on mcu" % (pin_type,))
         co = pcs[pin_type](self, pin_params)