From 892db58bd1285d44e6e1a1e36157161990ec5ae4 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 17 Oct 2013 17:37:11 +0200 Subject: [PATCH] tty/serial: at91: fix uart/usart selection for older products Since commit 055560b04a8cd063aea916fd083b7aec02c2adb8 (serial: at91: distinguish usart and uart) the older products which do not have a name field in their register map are unable to use their serial output. As the main console output is usually the serial interface (aka DBGU) it is pretty unfortunate. So, instead of failing during probe() we just silently configure the serial peripheral as an uart. It allows us to use these serial outputs. The proper solution is proposed in another patch. Signed-off-by: Nicolas Ferre Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/atmel_serial.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index d067285a2d20..6b0f75eac8a2 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1499,7 +1499,7 @@ static void atmel_set_ops(struct uart_port *port) /* * Get ip name usart or uart */ -static int atmel_get_ip_name(struct uart_port *port) +static void atmel_get_ip_name(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); int name = UART_GET_IP_NAME(port); @@ -1518,10 +1518,7 @@ static int atmel_get_ip_name(struct uart_port *port) atmel_port->is_usart = false; } else { dev_err(port->dev, "Not supported ip name, set to uart\n"); - return -EINVAL; } - - return 0; } /* @@ -2405,9 +2402,7 @@ static int atmel_serial_probe(struct platform_device *pdev) /* * Get port name of usart or uart */ - ret = atmel_get_ip_name(&port->uart); - if (ret < 0) - goto err_add_port; + atmel_get_ip_name(&port->uart); return 0; -- 2.20.1