Re: [PATCH] serial: samsung: Remove hard-coded major/minor numbers

From: Greg KH
Date: Fri Dec 27 2013 - 00:18:39 EST


On Fri, Dec 27, 2013 at 10:37:28AM +0530, Tushar Behera wrote:
> The hard-coded values clash with the values set for amba-pl011 serial
> driver. Because of this there is no serial output on Samsung boards
> if amba-pl011 is enabled alongwith samsung-serial driver.
>
> Remove the hardcoded values and let the framework decide on
> appropriate major/minor number. This is required for multi-platform
> development work on Exynos platform.
>
> Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
> ---
> drivers/tty/serial/samsung.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
> index c1af04d..9c20543 100644
> --- a/drivers/tty/serial/samsung.c
> +++ b/drivers/tty/serial/samsung.c
> @@ -56,8 +56,6 @@
> /* UART name and device definitions */
>
> #define S3C24XX_SERIAL_NAME "ttySAC"
> -#define S3C24XX_SERIAL_MAJOR 204
> -#define S3C24XX_SERIAL_MINOR 64
>
> /* macros to change one thing to another */
>
> @@ -951,8 +949,6 @@ static struct uart_driver s3c24xx_uart_drv = {
> .nr = CONFIG_SERIAL_SAMSUNG_UARTS,
> .cons = S3C24XX_SERIAL_CONSOLE,
> .dev_name = S3C24XX_SERIAL_NAME,
> - .major = S3C24XX_SERIAL_MAJOR,
> - .minor = S3C24XX_SERIAL_MINOR,

Doesn't this break existing systems and configurations that are
expecting 204:64 as the location of this serial port?

Why change this one and not the amba-pl011 driver?

greg k-h
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