3 files changed, 11 insertions, 16 deletions
diff --git a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c
index b3ea138bf6..77630237ae 100644
--- a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c
+++ b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c
@@ -456,9 +456,8 @@ PL011UartRead (
 /**
   Check to see if any data is available to be read from the debug device.
 
-  @retval EFI_SUCCESS       At least one byte of data is available to be read
-  @retval EFI_NOT_READY     No data is available to be read
-  @retval EFI_DEVICE_ERROR  The serial device is not functioning properly
+  @retval TRUE       At least one byte of data is available to be read
+  @retval FALSE      No data is available to be read
 
 **/
 BOOLEAN
diff --git a/ArmPlatformPkg/Include/Drivers/PL011Uart.h b/ArmPlatformPkg/Include/Drivers/PL011Uart.h
index 36ea9d6269..d5e88e86c8 100644
--- a/ArmPlatformPkg/Include/Drivers/PL011Uart.h
+++ b/ArmPlatformPkg/Include/Drivers/PL011Uart.h
@@ -246,9 +246,8 @@ PL011UartRead (
 /**
   Check to see if any data is available to be read from the debug device.
 
-  @retval EFI_SUCCESS       At least one byte of data is available to be read
-  @retval EFI_NOT_READY     No data is available to be read
-  @retval EFI_DEVICE_ERROR  The serial device is not functioning properly
+  @retval TRUE       At least one byte of data is available to be read
+  @retval FALSE      No data is available to be read
 
 **/
 BOOLEAN
diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
index 5092a0a202..5dce852d90 100644
--- a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
+++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
@@ -23,14 +23,12 @@
 
 #include <Drivers/PL011Uart.h>
 
+/** Initialise the serial device hardware with default settings.
 
-/**
-
-  Programmed hardware of Serial port.
-
-  @return    Always return RETURN_UNSUPPORTED.
-
-**/
+  @retval RETURN_SUCCESS            The serial device was initialised.
+  @retval RETURN_INVALID_PARAMETER  One or more of the default settings
+                                    has an unsupported value.
+ **/
 RETURN_STATUS
 EFIAPI
 SerialPortInitialize (
@@ -103,9 +101,8 @@ SerialPortRead (
 /**
   Check to see if any data is available to be read from the debug device.
 
-  @retval EFI_SUCCESS       At least one byte of data is available to be read
-  @retval EFI_NOT_READY     No data is available to be read
-  @retval EFI_DEVICE_ERROR  The serial device is not functioning properly
+  @retval TRUE       At least one byte of data is available to be read
+  @retval FALSE      No data is available to be read
 
 **/
 BOOLEAN