rk_serial: fix compile error when printascii no define

diff --git a/drivers/tty/serial/rk_serial.c b/drivers/tty/serial/rk_serial.c
index 1818c45e02ba6a157530b01a41900f0bc4a0c705..5272a00100af861ba104680391f4025857697a74 100644 (file)
--- a/drivers/tty/serial/rk_serial.c
+++ b/drivers/tty/serial/rk_serial.c
@@ -161,7 +161,9 @@ static void dbg(const char *fmt, ...)
        vsprintf(buff, fmt, va);\r
        va_end(va);\r
 \r
+#if defined(CONFIG_DEBUG_LL) || defined(CONFIG_RK_EARLY_PRINTK)\r
        printascii(buff);\r
+#endif\r
 }\r
 \r
 //enable log output\r