linux-kernel - Re: [PATCH 6/7] serial: 8250

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Message-ID: <20200318151501.GO1922688@smile.fi.intel.com>
Date:   Wed, 18 Mar 2020 17:15:01 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     gregkh@...uxfoundation.org, jslaby@...e.com,
        matwey.kornilov@...il.com, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Giulio Benetti <giulio.benetti@...ronovasrl.com>,
        Heiko Stuebner <heiko.stuebner@...obroma-systems.com>
Subject: Re: [PATCH 6/7] serial: 8250_dw: add em485 support

On Wed, Mar 18, 2020 at 03:26:39PM +0100, Heiko Stuebner wrote:
> From: Giulio Benetti <giulio.benetti@...ronovasrl.com>
> 
> Need to use rs485 transceiver so let's use existing em485 485 emulation
> layer on top of 8250.
> 
> Add rs485_config callback to port.

Synopsys DesignWare UART is being supported in three modules right now:
8250_dw (platform driver), 8250_dwlib (some library functions for this driver)
and 8250_lpss (PCI driver).

Can we do in a way that both platform and PCI drivers will get advantage by the change?

> Signed-off-by: Giulio Benetti <giulio.benetti@...ronovasrl.com>
> Signed-off-by: Heiko Stuebner <heiko.stuebner@...obroma-systems.com>
> ---
>  drivers/tty/serial/8250/8250_dw.c | 31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)

-- 
With Best Regards,
Andy Shevchenko