Revert "tty: serial8250: add helpers for the DesignWare 8250"

This reverts commit 6b1a98d1c4851235d9b6764b3f7b7db7909fc760.

It causes a build error that needs to be resolved differently.

Cc: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 8 deletions

diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 09e2dbcd7ca3..1f05bbeac01e 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -86,13 +86,5 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
 extern void serial8250_set_isa_configurator(void (*v)
                                         (int port, struct uart_port *up,
                                                 unsigned short *capabilities));
-#ifndef SERIAL_8250_DW
-extern int serial8250_use_designware_io(struct uart_port *up);
-#else
-static inline int serial8250_use_designware_io(struct uart_port *up)
-{
-        return -EIO;
-}
-#endif
 
 #endif