if the driver is built as module skip it as add_preferred_console is not
exported

Cc: [email protected]
Cc: Sascha Hauer <[email protected]>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
---
 drivers/tty/serial/atmel_serial.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/tty/serial/atmel_serial.c 
b/drivers/tty/serial/atmel_serial.c
index a49f10d..2ade64e 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -2044,6 +2044,19 @@ static struct uart_ops atmel_pops = {
 #endif
 };
 
+static void atmel_of_preferred_console(struct atmel_uart_port *atmel_port,
+                                      struct platform_device *pdev)
+{
+       struct device_node *np = pdev->dev.of_node;
+       struct uart_port *port = &atmel_port->uart;
+       char* option;
+
+       if (!np || !of_device_is_stdout_path(np, &option))
+               return;
+
+       add_preferred_console(ATMEL_DEVICENAME, port->line, option);
+}
+
 /*
  * Configure the port from the platform device resource info.
  */
@@ -2059,6 +2072,9 @@ static int atmel_init_port(struct atmel_uart_port 
*atmel_port,
 
        atmel_init_rs485(atmel_port, pdev);
 
+       if (IS_BUILTIN(CONFIG_SERIAL_ATMEL))
+               atmel_of_preferred_console(atmel_port, pdev);
+
        port->iotype            = UPIO_MEM;
        port->flags             = UPF_BOOT_AUTOCONF;
        port->ops               = &atmel_pops;
-- 
1.9.rc1

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