Merge pull request #43 from FoamyGuy/scaling_fix

[hackapet/Adafruit_Blinka_Displayio.git] / displayio / fourwire.py

diff --git a/displayio/fourwire.py b/displayio/fourwire.py
index a48c771380050141de7205aed61be293259b2d59..64be5c87dddb4739369f272fd9258231743fbf94 100644 (file)
--- a/displayio/fourwire.py
+++ b/displayio/fourwire.py
@@ -99,8 +99,6 @@ class FourWire:
             time.sleep(0.001)
             self._reset.value = True
             time.sleep(0.001)
-        else:
-            raise RuntimeError("No reset pin defined")
 
     def send(self, is_command, data, *, toggle_every_byte=False):
         """Sends the given command value followed by the full set of data. Display state,
@@ -120,13 +118,12 @@ class FourWire:
     def begin_transaction(self):
         """Begin the SPI transaction by locking, configuring, and setting Chip Select
         """
-        if not self._spi.try_lock():
-            return False
+        while not self._spi.try_lock():
+            pass
         self._spi.configure(
             baudrate=self._frequency, polarity=self._polarity, phase=self._phase
         )
         self._chip_select.value = False
-        return True
 
     def end_transaction(self):
         """End the SPI transaction by unlocking and setting Chip Select