From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Sun, 3 Sep 2006 20:04:20 +0000 (+0400)
Subject: [SERIAL] Make uart_line_info() correctly tell MMIO from I/O port
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6c6a2334a1e8af7c3eaab992732825fa9ade77cf;p=linux-beck.git

[SERIAL] Make uart_line_info() correctly tell MMIO from I/O port

/proc/tty/driver/serial incorrectly claims that UARTs having iotype of
UPIO_MEM32, UPIO_AU, or UPIO_TSI are I/O mapped.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 5f7ba1adb309..d7e28ab4c313 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1662,16 +1662,16 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
 	struct uart_port *port = state->port;
 	char stat_buf[32];
 	unsigned int status;
-	int ret;
+	int mmio, ret;
 
 	if (!port)
 		return 0;
 
+	mmio = port->iotype >= UPIO_MEM;
 	ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d",
 			port->line, uart_type(port),
-			port->iotype == UPIO_MEM ? "mmio:0x" : "port:",
-			port->iotype == UPIO_MEM ? port->mapbase :
-						(unsigned long) port->iobase,
+			mmio ? "mmio:0x" : "port:",
+			mmio ? port->mapbase : (unsigned long) port->iobase,
 			port->irq);
 
 	if (port->type == PORT_UNKNOWN) {