Use latest version of black

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

diff --git a/displayio/fourwire.py b/displayio/fourwire.py
index a48c771380050141de7205aed61be293259b2d59..219656ca77f5ee4cef8df18f4778fc329526030e 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)
             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,
 
     def send(self, is_command, data, *, toggle_every_byte=False):
         """Sends the given command value followed by the full set of data. Display state,


@@ -118,18 +116,15 @@ class FourWire:
             self._spi.write(data)
 
     def begin_transaction(self):
             self._spi.write(data)
 
     def begin_transaction(self):

-        """Begin the SPI transaction by locking, configuring, and setting Chip Select
-        """
-        if not self._spi.try_lock():
-            return False
+        """Begin the SPI transaction by locking, configuring, and setting Chip Select"""
+        while not self._spi.try_lock():
+            pass

         self._spi.configure(
             baudrate=self._frequency, polarity=self._polarity, phase=self._phase
         )
         self._chip_select.value = False
         self._spi.configure(
             baudrate=self._frequency, polarity=self._polarity, phase=self._phase
         )
         self._chip_select.value = False

-        return True

 
     def end_transaction(self):
 
     def end_transaction(self):

-        """End the SPI transaction by unlocking and setting Chip Select
-        """
+        """End the SPI transaction by unlocking and setting Chip Select"""

         self._chip_select.value = True
         self._spi.unlock()
         self._chip_select.value = True
         self._spi.unlock()