linux-kernel - Re: [PATCH v7 5/5] drivers/tty/serial: add LiteUART driver

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Message-ID: <418aa34e-af6c-3a3c-8d22-e7a122963b8f@infradead.org>
Date:   Thu, 4 Jun 2020 08:14:02 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Mateusz Holenko <mholenko@...micro.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, devicetree@...r.kernel.org,
        linux-serial@...r.kernel.org
Cc:     Stafford Horne <shorne@...il.com>,
        Karol Gugala <kgugala@...micro.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>,
        Filip Kokosinski <fkokosinski@...micro.com>,
        Pawel Czarnecki <pczarnecki@...ernships.antmicro.com>,
        Joel Stanley <joel@....id.au>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Maxime Ripard <mripard@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Icenowy Zheng <icenowy@...c.io>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-kernel@...r.kernel.org, "Gabriel L. Somlo" <gsomlo@...il.com>
Subject: Re: [PATCH v7 5/5] drivers/tty/serial: add LiteUART driver

Hi--

On 6/4/20 3:14 AM, Mateusz Holenko wrote:
> +config SERIAL_LITEUART
> +	tristate "LiteUART serial port support"
> +	depends on HAS_IOMEM
> +	depends on OF || COMPILE_TEST
> +	depends on LITEX_SOC_CONTROLLER
> +	select SERIAL_CORE
> +	help
> +	  This driver is for the FPGA-based LiteUART serial controller from LiteX
> +	  SoC builder.
> +
> +	  Say 'Y' here if you wish to use the LiteUART serial controller.
> +	  Otherwise, say 'N'.

That last paragraph seems to say that Y and N are the only choices here.
It can also be set to M ...

-- 
~Randy