Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig

[u-boot] / common / Kconfig

diff --git a/common/Kconfig b/common/Kconfig
index ff2b1a400bd1015feef13d7083da0be0196d9765..dbe5bb619baeed6463a466141d015a95475478e5 100644 (file)
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -335,6 +335,15 @@ config SYS_CONSOLE_INFO_QUIET
          Enable this option to supress this output. It can be obtained by
          calling stdio_print_current_devices() from board code.
 
+config SYS_STDIO_DEREGISTER
+       bool "Allow deregistering stdio devices"
+       default y if USB_KEYBOARD
+       help
+         Generally there is no need to deregister stdio devices since they
+         are never deactivated. But if a stdio device is used which can be
+         removed (for example a USB keyboard) then this option can be
+         enabled to ensure this is handled correctly.
+
 endmenu
 
 config SYS_NO_FLASH