linux-kernel - Re: [PATCH v2 4/7] tty: serial: meson: introduce separate uart

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Message-ID: <62de5067-f651-67d8-3779-46b1fe0bdd08@linaro.org>
Date:   Thu, 6 Jul 2023 09:09:10 +0200
From:   neil.armstrong@...aro.org
To:     Dmitry Rokosov <ddrokosov@...rdevices.ru>,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        jbrunet@...libre.com, jirislaby@...nel.org, khilman@...libre.com,
        martin.blumenstingl@...glemail.com
Cc:     kelvin.zhang@...ogic.com, xianwei.zhao@...ogic.com,
        kernel@...rdevices.ru, rockosov@...il.com,
        linux-amlogic@...ts.infradead.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 4/7] tty: serial: meson: introduce separate uart_data
 for S4 SoC family

On 05/07/2023 20:18, Dmitry Rokosov wrote:
> In order to use the correct devname value for the S4 SoC family, it
> is imperative that we implement separate uart_data. Unlike the legacy
> g12a architecture, the S4 architecture should employ the use of 'ttyS'
> devname.
> 
> Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
> ---
>   drivers/tty/serial/meson_uart.c | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
> index ad0748a10db7..6a63184b8091 100644
> --- a/drivers/tty/serial/meson_uart.c
> +++ b/drivers/tty/serial/meson_uart.c
> @@ -818,6 +818,11 @@ static struct meson_uart_data meson_g12a_uart_data = {
>   	.has_xtal_div2 = true,
>   };
>   
> +static struct meson_uart_data meson_s4_uart_data = {
> +	.uart_driver = &MESON_UART_DRIVER(ttyS),
> +	.has_xtal_div2 = true,
> +};
> +
>   static const struct of_device_id meson_uart_dt_match[] = {
>   	{ .compatible = "amlogic,meson6-uart" },
>   	{ .compatible = "amlogic,meson8-uart" },
> @@ -829,7 +834,7 @@ static const struct of_device_id meson_uart_dt_match[] = {
>   	},
>   	{
>   		.compatible = "amlogic,meson-s4-uart",
> -		.data = (void *)&meson_g12a_uart_data,
> +		.data = (void *)&meson_s4_uart_data,
>   	},
>   	{ /* sentinel */ },
>   };

With the real struct name:

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>