diff options
Diffstat (limited to 'drivers/tty/serial/samsung.c')
| -rw-r--r-- | drivers/tty/serial/samsung.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index b31f1c3a2c4c..51cfb9f11665 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -190,10 +190,13 @@ static inline struct s3c24xx_uart_info *s3c24xx_port_to_info(struct uart_port *p static inline struct s3c2410_uartcfg *s3c24xx_port_to_cfg(struct uart_port *port) { + struct s3c24xx_uart_port *ourport; + if (port->dev == NULL) return NULL; - return (struct s3c2410_uartcfg *)port->dev->platform_data; + ourport = container_of(port, struct s3c24xx_uart_port, port); + return ourport->cfg; } static int s3c24xx_serial_rx_fifocnt(struct s3c24xx_uart_port *ourport, @@ -1125,7 +1128,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, struct platform_device *platdev) { struct uart_port *port = &ourport->port; - struct s3c2410_uartcfg *cfg; + struct s3c2410_uartcfg *cfg = platdev->dev.platform_data; struct resource *res; int ret; @@ -1134,11 +1137,16 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, if (platdev == NULL) return -ENODEV; - cfg = s3c24xx_dev_to_cfg(&platdev->dev); - if (port->mapbase != 0) return 0; + /* + * If platform data is supplied, keep a copy of the location of + * platform data in the driver's private data. + */ + if (cfg) + ourport->cfg = cfg; + if (cfg->hwport > CONFIG_SERIAL_SAMSUNG_UARTS) { printk(KERN_ERR "%s: port %d bigger than %d\n", __func__, cfg->hwport, CONFIG_SERIAL_SAMSUNG_UARTS); |