linux-kernel - Re: [PATCH] tty: serial: meson: Add a earlycon for the S4 SoC

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Date:   Mon, 28 Aug 2023 14:16:44 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Lucas Tanure <tanure@...ux.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>
Cc:     linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH] tty: serial: meson: Add a earlycon for the S4 SoC

Hi,

On 28/08/2023 14:10, Lucas Tanure wrote:
> The new Amlogic S4 SoC does not have a always-on uart, so add
> OF_EARLYCON_DECLARE for it.
> 
> Signed-off-by: Lucas Tanure <tanure@...ux.com>
> ---
>   drivers/tty/serial/meson_uart.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
> index 790d910dafa5..8dfaa260e545 100644
> --- a/drivers/tty/serial/meson_uart.c
> +++ b/drivers/tty/serial/meson_uart.c
> @@ -646,8 +646,8 @@ meson_serial_early_console_setup(struct earlycon_device *device, const char *opt
>   	return 0;
>   }
>   
> -OF_EARLYCON_DECLARE(meson, "amlogic,meson-ao-uart",
> -		    meson_serial_early_console_setup);
> +OF_EARLYCON_DECLARE(meson, "amlogic,meson-ao-uart", meson_serial_early_console_setup);
> +OF_EARLYCON_DECLARE(meson, "amlogic,meson-s4-uart", meson_serial_early_console_setup);

Not sure why you would change both lines, and where's the t7 entry ?

Neil

>   
>   #define MESON_SERIAL_CONSOLE_PTR(_devname) (&meson_serial_console_##_devname)
>   #else