linux-kernel - Re: [PATCH 4/5] sdio_uart: make use of UART_LCR_WLEN() + tty_get_char

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Message-ID: <CAPDyKFqHLQ8YTc3wzaFOdAA7Ay9RBEfdQC5uN574=oMavi6iCQ@mail.gmail.com>
Date:   Mon, 28 Feb 2022 17:16:20 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Jiri Slaby <jslaby@...e.cz>
Cc:     gregkh@...uxfoundation.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: Re: [PATCH 4/5] sdio_uart: make use of UART_LCR_WLEN() + tty_get_char_size()

On Thu, 24 Feb 2022 at 10:56, Jiri Slaby <jslaby@...e.cz> wrote:
>
> Having a generic UART_LCR_WLEN() macro and the tty_get_char_size()
> helper, we can remove all those repeated switch-cases in drivers.
>
> Signed-off-by: Jiri Slaby <jslaby@...e.cz>
> Cc: Ulf Hansson <ulf.hansson@...aro.org>
> Cc: linux-mmc@...r.kernel.org

Acked-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  drivers/mmc/core/sdio_uart.c | 16 +---------------
>  1 file changed, 1 insertion(+), 15 deletions(-)
>
> diff --git a/drivers/mmc/core/sdio_uart.c b/drivers/mmc/core/sdio_uart.c
> index 04c0823e0359..e6eb5bd6e440 100644
> --- a/drivers/mmc/core/sdio_uart.c
> +++ b/drivers/mmc/core/sdio_uart.c
> @@ -250,21 +250,7 @@ static void sdio_uart_change_speed(struct sdio_uart_port *port,
>         unsigned char cval, fcr = 0;
>         unsigned int baud, quot;
>
> -       switch (termios->c_cflag & CSIZE) {
> -       case CS5:
> -               cval = UART_LCR_WLEN5;
> -               break;
> -       case CS6:
> -               cval = UART_LCR_WLEN6;
> -               break;
> -       case CS7:
> -               cval = UART_LCR_WLEN7;
> -               break;
> -       default:
> -       case CS8:
> -               cval = UART_LCR_WLEN8;
> -               break;
> -       }
> +       cval = UART_LCR_WLEN(tty_get_char_size(termios->c_cflag));
>
>         if (termios->c_cflag & CSTOPB)
>                 cval |= UART_LCR_STOP;
> --
> 2.35.1
>