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SubjectRe: [PATCH] serial: sprd: Support 12 uart ports
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On 8/7/2023 4:07 PM, Wenhua Lin wrote:
> From: Wenhua Lin <wenhua.lin@unisoc.com>
>
> Support 12 uart ports, which can solve the problem
> of insufficient uart ports.

This sounds incorrect to me.
If this is a software bug, please add a Fixes tag to backport for stable
kernels. If the change of the max ports is only avaliable on the new
SPRD serial hardware, you should ensure the change is
backward-compatibility with old hardware.

> Signed-off-by: Wenhua Lin <wenhua.lin@unisoc.com>
> ---
> drivers/tty/serial/sprd_serial.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
> index b58f51296ace..2774df490899 100644
> --- a/drivers/tty/serial/sprd_serial.c
> +++ b/drivers/tty/serial/sprd_serial.c
> @@ -22,7 +22,7 @@
> #include <linux/tty_flip.h>
>
> /* device name */
> -#define UART_NR_MAX 8
> +#define UART_NR_MAX 12
> #define SPRD_TTY_NAME "ttyS"
> #define SPRD_FIFO_SIZE 128
> #define SPRD_DEF_RATE 26000000

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