diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/s3c2410.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index e284af8071d..b87c0b55aa2 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -685,11 +685,6 @@ static unsigned int s3c24xx_serial_getclk(struct uart_port *port, int calc_deviation; for (sptr = res; sptr < resptr; sptr++) { - printk(KERN_DEBUG - "found clk %p (%s) quot %d, calc %d\n", - sptr->clksrc, sptr->clksrc->name, - sptr->quot, sptr->calc); - calc_deviation = baud - sptr->calc; if (calc_deviation < 0) calc_deviation = -calc_deviation; @@ -699,13 +694,8 @@ static unsigned int s3c24xx_serial_getclk(struct uart_port *port, deviation = calc_deviation; } } - - printk(KERN_DEBUG "best %p (deviation %d)\n", best, deviation); } - printk(KERN_DEBUG "selected clock %p (%s) quot %d, calc %d\n", - best->clksrc, best->clksrc->name, best->quot, best->calc); - /* store results to pass back */ *clksrc = best->clksrc; @@ -1058,6 +1048,18 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, return 0; } +static ssize_t s3c24xx_serial_show_clksrc(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct uart_port *port = s3c24xx_dev_to_port(dev); + struct s3c24xx_uart_port *ourport = to_ourport(port); + + return snprintf(buf, PAGE_SIZE, "* %s\n", ourport->clksrc->name); +} + +static DEVICE_ATTR(clock_source, S_IRUGO, s3c24xx_serial_show_clksrc, NULL); + /* Device driver serial port probe */ static int probe_index = 0; @@ -1083,6 +1085,11 @@ static int s3c24xx_serial_probe(struct platform_device *dev, uart_add_one_port(&s3c24xx_uart_drv, &ourport->port); platform_set_drvdata(dev, &ourport->port); + ret = device_create_file(&dev->dev, &dev_attr_clock_source); + if (ret < 0) { + printk(KERN_ERR "%s: failed to add clksrc attr.\n", __func__); + } + return 0; probe_err: @@ -1093,8 +1100,10 @@ static int s3c24xx_serial_remove(struct platform_device *dev) { struct uart_port *port = s3c24xx_dev_to_port(&dev->dev); - if (port) + if (port) { + device_remove_file(&dev->dev, &dev_attr_clock_source); uart_remove_one_port(&s3c24xx_uart_drv, port); + } return 0; } |