linux-kernel - Re: [PATCH 0/2] serial: add rs485-mux-gpio dt binding and support

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Message-ID: <ZV4W14KUAqTI6Seo@smile.fi.intel.com>
Date:   Wed, 22 Nov 2023 16:57:27 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, Lukas Wunner <lukas@...ner.de>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH 0/2] serial: add rs485-mux-gpio dt binding and support

On Mon, Nov 20, 2023 at 04:10:53PM +0100, Rasmus Villemoes wrote:
> Some boards are wired so that they support both rs232 and rs485, with
> a gpio controlling a mux connecting the SOC's pins to the appropriate
> external circuitry. Instead of requiring the application to know about
> such details and handle the gpio appropriately, allow it to be
> described in device tree and let the serial core code handle it if
> present.
> 
> Tested on a board based on imx8mp.

Why mux framework is not (may not) used?

-- 
With Best Regards,
Andy Shevchenko