linux-kernel - Re: [PATCH v2 04/11] serial: sh-sci: Add support for GPIO-controlled modem lines

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Date:	Fri, 29 Apr 2016 08:39:07 -0700
From:	Peter Hurley <peter@...leysoftware.com>
To:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Jiri Slaby <jslaby@...e.com>, Magnus Damm <magnus.damm@...il.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	linux-serial@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 04/11] serial: sh-sci: Add support for GPIO-controlled
 modem lines

On 04/29/2016 05:58 AM, Geert Uytterhoeven wrote:
> Enhance the Renesas SCI UART driver to add support for GPIO-controlled
> modem lines (CTS, DSR, DCD, RNG, RTS, DTR), using the serial_mctrl_gpio
> helpers.
> 
> GPIO-controlled modem lines can be used when dedicated modem lines are
> not available. Invalid configurations specifying both GPIO RTS/CTS and
> dedicated RTS/CTS are rejected.

Reviewed-by: Peter Hurley <peter@...leysoftware.com>