# \[PATCH 05/11\] serial: sh-sci: Set the UPF\_FIXED\_PORT flag

- From: Simon Horman \<hidden\>
- Date: 2013-12-24 14:14:22 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2013/12/8670232
- Thread: https://ratatoskr.run/linux-arm-kernel/2013/12/8670227/t.md

```text
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The base address, IRQ and baud rate generator parent clock rate can't be
changed by userspace. Mark the port as fixed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <redacted>
---
 drivers/tty/serial/sh-sci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 8c17d55..67dadbd 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2248,7 +2248,7 @@ static int sci_init_single(struct platform_device *dev,
 
 	port->mapbase		= p->mapbase;
 	port->type		= p->type;
-	port->flags		= p->flags;
+	port->flags		= UPF_FIXED_PORT | p->flags;
 	port->regshift		= p->regshift;
 
 	/*
-- 
1.8.4
```