From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 3 Nov 2008 19:51:42 +0000 (+0000)
Subject: [ARM] S3C: Update CONFIG_SERIAL_SAMSUNG_UARTS handling
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=bdd4915a9f05ef6b41b51910b199f2668f20d2ef;p=openwrt%2Fstaging%2Fblogic.git

[ARM] S3C: Update CONFIG_SERIAL_SAMSUNG_UARTS handling

Fix the usage of CONFIG_SERIAL_SAMSUNG_UARTS in several places
in the kernel where it had been missed. This finishes fixing a
long standing issue where S3C2443 and S3C64XX could not use the
4th UART

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---

diff --git a/arch/arm/plat-s3c/init.c b/arch/arm/plat-s3c/init.c
index 85f086ee930a..da8d089f6dbc 100644
--- a/arch/arm/plat-s3c/init.c
+++ b/arch/arm/plat-s3c/init.c
@@ -91,7 +91,7 @@ void __init s3c24xx_init_clocks(int xtal)
 
 static int nr_uarts __initdata = 0;
 
-static struct s3c2410_uartcfg uart_cfgs[3];
+static struct s3c2410_uartcfg uart_cfgs[CONFIG_SERIAL_SAMSUNG_UARTS];
 
 /* s3c24xx_init_uartdevs
  *
diff --git a/drivers/serial/samsung.c b/drivers/serial/samsung.c
index ec873af26101..dc7e7ebad236 100644
--- a/drivers/serial/samsung.c
+++ b/drivers/serial/samsung.c
@@ -824,7 +824,7 @@ static struct uart_ops s3c24xx_serial_ops = {
 static struct uart_driver s3c24xx_uart_drv = {
 	.owner		= THIS_MODULE,
 	.dev_name	= "s3c2410_serial",
-	.nr		= 3,
+	.nr		= CONFIG_SERIAL_SAMSUNG_UARTS,
 	.cons		= S3C24XX_SERIAL_CONSOLE,
 	.driver_name	= S3C24XX_SERIAL_NAME,
 	.major		= S3C24XX_SERIAL_MAJOR,
@@ -1012,8 +1012,11 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 	if (port->mapbase != 0)
 		return 0;
 
-	if (cfg->hwport > 3)
-		return -EINVAL;
+	if (cfg->hwport > CONFIG_SERIAL_SAMSUNG_UARTS) {
+		printk(KERN_ERR "%s: port %d bigger than %d\n", __func__,
+		       cfg->hwport, CONFIG_SERIAL_SAMSUNG_UARTS);
+		return -ERANGE;
+	}
 
 	/* setup info for port */
 	port->dev	= &platdev->dev;