Re: [PATCH v5 17/20] tty: serial: samsung: Add gs101 compatible and common fifoszdt_serial_drv_data

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On Fri, Dec 1, 2023 at 10:11 AM Peter Griffin <peter.griffin@xxxxxxxxxx> wrote:
>
> Add serial driver data for Google Tensor gs101 SoC and a common
> fifoszdt_serial_drv_data that can be used by platforms that specify the
> samsung,uart-fifosize DT property.
>
> A corresponding dt-bindings patch updates the yaml to ensure
> samsung,uart-fifosize is a required property.
>
> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
> Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
> ---
>  drivers/tty/serial/samsung_tty.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
> index 1b0c2b467a30..f8d98f1006de 100644
> --- a/drivers/tty/serial/samsung_tty.c
> +++ b/drivers/tty/serial/samsung_tty.c
> @@ -2490,14 +2490,25 @@ static const struct s3c24xx_serial_drv_data exynos850_serial_drv_data = {
>         .fifosize = { 256, 64, 64, 64 },
>  };
>
> +/*
> + * Common drv_data struct for platforms that specify uart,fifosize in
> + * device tree.

Isn't it "samsung,uart-fifosize"? Or it was intended this way?

Other than this, LGTM (my R-b tag is already present in this patch).

> + */
> +static const struct s3c24xx_serial_drv_data exynos_fifoszdt_serial_drv_data = {
> +       EXYNOS_COMMON_SERIAL_DRV_DATA(),
> +       .fifosize = { 0 },
> +};
> +
>  #define EXYNOS4210_SERIAL_DRV_DATA (&exynos4210_serial_drv_data)
>  #define EXYNOS5433_SERIAL_DRV_DATA (&exynos5433_serial_drv_data)
>  #define EXYNOS850_SERIAL_DRV_DATA (&exynos850_serial_drv_data)
> +#define EXYNOS_FIFOSZDT_DRV_DATA (&exynos_fifoszdt_serial_drv_data)
>
>  #else
>  #define EXYNOS4210_SERIAL_DRV_DATA NULL
>  #define EXYNOS5433_SERIAL_DRV_DATA NULL
>  #define EXYNOS850_SERIAL_DRV_DATA NULL
> +#define EXYNOS_FIFOSZDT_DRV_DATA NULL
>  #endif
>
>  #ifdef CONFIG_ARCH_APPLE
> @@ -2581,6 +2592,9 @@ static const struct platform_device_id s3c24xx_serial_driver_ids[] = {
>         }, {
>                 .name           = "artpec8-uart",
>                 .driver_data    = (kernel_ulong_t)ARTPEC8_SERIAL_DRV_DATA,
> +       }, {
> +               .name           = "gs101-uart",
> +               .driver_data    = (kernel_ulong_t)EXYNOS_FIFOSZDT_DRV_DATA,
>         },
>         { },
>  };
> @@ -2602,6 +2616,8 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = {
>                 .data = EXYNOS850_SERIAL_DRV_DATA },
>         { .compatible = "axis,artpec8-uart",
>                 .data = ARTPEC8_SERIAL_DRV_DATA },
> +       { .compatible = "google,gs101-uart",
> +               .data = EXYNOS_FIFOSZDT_DRV_DATA },
>         {},
>  };
>  MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match);
> --
> 2.43.0.rc2.451.g8631bc7472-goog
>





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