serial: usb: Correct the usbtty_...() prototypes
The function declarations in serial.h are not in sync with what is
currently used in usbtty. Fix this by updating the header and including
it, to help catch future such problems.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/serial/usbtty.c b/drivers/serial/usbtty.c
index 76d9c8a..f1c1a26 100644
--- a/drivers/serial/usbtty.c
+++ b/drivers/serial/usbtty.c
@@ -11,6 +11,7 @@
#include <config.h>
#include <circbuf.h>
#include <env.h>
+#include <serial.h>
#include <stdio_dev.h>
#include <asm/unaligned.h>
#include "usbtty.h"
diff --git a/include/serial.h b/include/serial.h
index c1368c6..38a1cc9 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -50,18 +50,20 @@
/* For usbtty */
#ifdef CONFIG_USB_TTY
-extern int usbtty_getc(void);
-extern void usbtty_putc(const char c);
-extern void usbtty_puts(const char *str);
-extern int usbtty_tstc(void);
+struct stdio_dev;
+
+int usbtty_getc(struct stdio_dev *dev);
+void usbtty_putc(struct stdio_dev *dev, const char c);
+void usbtty_puts(struct stdio_dev *dev, const char *str);
+int usbtty_tstc(struct stdio_dev *dev);
#else
/* stubs */
-#define usbtty_getc() 0
-#define usbtty_putc(a)
-#define usbtty_puts(a)
-#define usbtty_tstc() 0
+#define usbtty_getc(dev) 0
+#define usbtty_putc(dev, a)
+#define usbtty_puts(dev, a)
+#define usbtty_tstc(dev) 0
#endif /* CONFIG_USB_TTY */