From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66020C10DCE for ; Wed, 18 Mar 2020 15:15:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3606F20757 for ; Wed, 18 Mar 2020 15:15:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727097AbgCRPPH (ORCPT ); Wed, 18 Mar 2020 11:15:07 -0400 Received: from mga17.intel.com ([192.55.52.151]:36495 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726958AbgCRPPH (ORCPT ); Wed, 18 Mar 2020 11:15:07 -0400 IronPort-SDR: HTeISfOC4CGs7Jlyob+Qgsx/jrCjaPt9SRTjj1CrKkeee533VgGHgXm7/JdR7GuUm21Auce8IT aQg0qHJ02rbQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2020 08:15:06 -0700 IronPort-SDR: FO9JYybt6/tWOkD0i8MwbkuhJu09rhOiIDlGB9PXcO5Snk06sS/bBcmbsc6uuW2SYMWaQ9Tz4M mseSYVmPezEg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,568,1574150400"; d="scan'208";a="291343056" Received: from smile.fi.intel.com (HELO smile) ([10.237.68.40]) by FMSMGA003.fm.intel.com with ESMTP; 18 Mar 2020 08:15:04 -0700 Received: from andy by smile with local (Exim 4.93) (envelope-from ) id 1jEaPN-00AnMz-9v; Wed, 18 Mar 2020 17:15:01 +0200 Date: Wed, 18 Mar 2020 17:15:01 +0200 From: Andy Shevchenko To: Heiko Stuebner Cc: gregkh@linuxfoundation.org, jslaby@suse.com, matwey.kornilov@gmail.com, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Giulio Benetti , Heiko Stuebner Subject: Re: [PATCH 6/7] serial: 8250_dw: add em485 support Message-ID: <20200318151501.GO1922688@smile.fi.intel.com> References: <20200318142640.982763-1-heiko@sntech.de> <20200318142640.982763-7-heiko@sntech.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200318142640.982763-7-heiko@sntech.de> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org On Wed, Mar 18, 2020 at 03:26:39PM +0100, Heiko Stuebner wrote: > From: Giulio Benetti > > 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 > Signed-off-by: Heiko Stuebner > --- > drivers/tty/serial/8250/8250_dw.c | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) -- With Best Regards, Andy Shevchenko