[U-Boot] [PATCH v1 5/5] colibri_t30: disable rs232 serial transceiver forceoff pins

Igor Opaniuk igor.opaniuk at gmail.com
Wed Oct 16 09:20:15 UTC 2019


Hi Marcel,

On Thu, Sep 12, 2019 at 12:15 PM Marcel Ziswiler <marcel at ziswiler.com> wrote:
>
> From: Marcel Ziswiler <marcel.ziswiler at toradex.com>
>
> Use gpio_early_init_uart() function to disable RS232 serial transceiver
> ForceOFF# pins on Iris.
>
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
>
> ---
>
>  board/toradex/colibri_t30/colibri_t30.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/board/toradex/colibri_t30/colibri_t30.c b/board/toradex/colibri_t30/colibri_t30.c
> index b6b00e3860..eb53fa6126 100644
> --- a/board/toradex/colibri_t30/colibri_t30.c
> +++ b/board/toradex/colibri_t30/colibri_t30.c
> @@ -55,6 +55,17 @@ void pinmux_init(void)
>                                    ARRAY_SIZE(colibri_t30_padctrl));
>  }
>
> +/*
> + * Disable RS232 serial transceiver ForceOFF# pins on Iris
> + */
> +void gpio_early_init_uart(void)
> +{
> +       gpio_request(TEGRA_GPIO(X, 6), "Force OFF# X13");
> +       gpio_direction_output(TEGRA_GPIO(X, 6), 1);
> +       gpio_request(TEGRA_GPIO(X, 7), "Force OFF# X14");
> +       gpio_direction_output(TEGRA_GPIO(X, 7), 1);
> +}
> +
>  /*
>   * Enable AX88772B USB to LAN controller
>   */
> --
> 2.21.0
>
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What not to handle this in the dts instead?

--
Best regards - Freundliche Grüsse - Meilleures salutations

Igor Opaniuk

mailto: igor.opaniuk at gmail.com
skype: igor.opanyuk
+380 (93) 836 40 67
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