serial: sunplus-uart: Fix compile error while CONFIG_SERIAL_SUNPLUS_CONSOLE=n

1. Fix implicit declaration of function 'wait_for_xmitr' issue.
2. Fix 'sunplus_uart_console' undeclared here issue.
3. Fix use of undeclared identifier 'sunplus_uart_console' issue.

Fixes: 9e8d5470325f ("serial: sunplus-uart: Add Sunplus SoC UART Driver")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Hammer Hsieh <hammerh0314@gmail.com>
Link: https://lore.kernel.org/r/1646108386-29905-1-git-send-email-hammerh0314@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sunplus-uart.c b/drivers/tty/serial/sunplus-uart.c
index 450c8e7..1c7a30b 100644 (file)
--- a/drivers/tty/serial/sunplus-uart.c
+++ b/drivers/tty/serial/sunplus-uart.c
@@ -441,7 +441,7 @@ static int sunplus_verify_port(struct uart_port *port, struct serial_struct *ser
        return 0;
 }
 
-#ifdef CONFIG_SERIAL_SUNPLUS_CONSOLE
+#if defined(CONFIG_SERIAL_SUNPLUS_CONSOLE) || defined(CONFIG_CONSOLE_POLL)
 static void wait_for_xmitr(struct uart_port *port)
 {
        unsigned int val;
@@ -562,6 +562,10 @@ static struct console sunplus_uart_console = {
        .index          = -1,
        .data           = &sunplus_uart_driver
 };
+
+#define        SERIAL_SUNPLUS_CONSOLE  (&sunplus_uart_console)
+#else
+#define        SERIAL_SUNPLUS_CONSOLE  NULL
 #endif
 
 static struct uart_driver sunplus_uart_driver = {
@@ -571,7 +575,7 @@ static struct uart_driver sunplus_uart_driver = {
        .major          = TTY_MAJOR,
        .minor          = 64,
        .nr             = SUP_UART_NR,
-       .cons           = &sunplus_uart_console,
+       .cons           = SERIAL_SUNPLUS_CONSOLE,
 };
 
 static void sunplus_uart_disable_unprepare(void *data)