linux-kernel - Re: [PATCH] tty/serial: use uart_console_write in the RISC-V SBL early console

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Message-ID: <CAAhSdy07AeWeMxQJvzRGzMQ84Sxc6O899T0dWO1vz0LB89ORyw@mail.gmail.com>
Date:   Fri, 11 Jan 2019 16:43:30 +0530
From:   Anup Patel <anup@...infault.org>
To:     Andreas Schwab <schwab@...e.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Atish Patra <atish.patra@....com>,
        Christoph Hellwig <hch@...radead.org>,
        Rob Herring <robh@...nel.org>, linux-riscv@...ts.infradead.org,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        linux-serial@...r.kernel.org
Subject: Re: [PATCH] tty/serial: use uart_console_write in the RISC-V SBL
 early console

On Thu, Jan 10, 2019 at 10:41 PM Andreas Schwab <schwab@...e.de> wrote:
>
> This enables proper NLCR processing.
>
> Suggested-by: Anup Patel <anup@...infault.org>
> Signed-off-by: Andreas Schwab <schwab@...e.de>
> ---
>  drivers/tty/serial/earlycon-riscv-sbi.c | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/tty/serial/earlycon-riscv-sbi.c b/drivers/tty/serial/earlycon-riscv-sbi.c
> index e1a551aae3..ce81523c31 100644
> --- a/drivers/tty/serial/earlycon-riscv-sbi.c
> +++ b/drivers/tty/serial/earlycon-riscv-sbi.c
> @@ -10,13 +10,16 @@
>  #include <linux/serial_core.h>
>  #include <asm/sbi.h>
>
> -static void sbi_console_write(struct console *con,
> -                             const char *s, unsigned int n)
> +static void sbi_putc(struct uart_port *port, int c)
>  {
> -       int i;
> +       sbi_console_putchar(c);
> +}
>
> -       for (i = 0; i < n; ++i)
> -               sbi_console_putchar(s[i]);
> +static void sbi_console_write(struct console *con,
> +                             const char *s, unsigned n)
> +{
> +       struct earlycon_device *dev = con->data;
> +       uart_console_write(&dev->port, s, n, sbi_putc);
>  }
>
>  static int __init early_sbi_setup(struct earlycon_device *device,
> --
> 2.20.1
>
> --
> Andreas Schwab, SUSE Labs, schwab@...e.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."

Looks good to me.

Reviewed-by: Anup Patel <anup@...infault.org>

Regards,
Anup