From beb053a94d742d8829e2b77ca8f9b06a7bf7a186 Mon Sep 17 00:00:00 2001
From: Jeff Epler <jepler@gmail.com>
Date: Tue, 8 Nov 2022 14:59:57 -0600
Subject: [PATCH] more thoroughly disable UART when

---
 ports/atmel-samd/common-hal/busio/UART.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ports/atmel-samd/common-hal/busio/UART.c b/ports/atmel-samd/common-hal/busio/UART.c
index 3a9b628e0b..6027b6a5fa 100644
--- a/ports/atmel-samd/common-hal/busio/UART.c
+++ b/ports/atmel-samd/common-hal/busio/UART.c
@@ -24,6 +24,7 @@
  * THE SOFTWARE.
  */
 
+#if CIRCUITPY_BUSIO_UART
 #include "shared-bindings/microcontroller/__init__.h"
 #include "shared-bindings/microcontroller/Pin.h"
 #include "shared-bindings/busio/UART.h"
@@ -485,3 +486,4 @@ bool common_hal_busio_uart_ready_to_tx(busio_uart_obj_t *self) {
     usart_async_get_status(usart_desc_p, &async_status);
     return !(async_status.flags & USART_ASYNC_STATUS_BUSY);
 }
+#endif