Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759332AbaGDQ5o (ORCPT ); Fri, 4 Jul 2014 12:57:44 -0400 Received: from mail-ie0-f169.google.com ([209.85.223.169]:63228 "EHLO mail-ie0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759256AbaGDQ5l convert rfc822-to-8bit (ORCPT ); Fri, 4 Jul 2014 12:57:41 -0400 MIME-Version: 1.0 In-Reply-To: <53B6DB74.2050401@linutronix.de> References: <1404316809-20637-1-git-send-email-bigeasy@linutronix.de> <20140702160932.GF5541@saruman.home> <20140702190944.GA567@drone.musicnaut.iki.fi> <20140703073411.GX28884@atomide.com> <53B6DB74.2050401@linutronix.de> Date: Fri, 4 Jul 2014 11:57:40 -0500 Message-ID: Subject: Re: [RFC PATCH] tty: serial: Add 8250-core based omap driver From: Robert Nelson To: Sebastian Andrzej Siewior Cc: Tony Lindgren , Aaro Koskinen , Felipe Balbi , linux kernel , linux-serial@vger.kernel.org, Linux OMAP Mailing List , Linux ARM Kernel Mailing List Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 4, 2014 at 11:51 AM, Sebastian Andrzej Siewior wrote: > On 07/03/2014 09:34 AM, Tony Lindgren wrote: >> Heh. Just to summarize the reason ttyO needs to be a separate name >> and device entry from ttyS is because we also have external 8250 >> devices on GPMC and hotplug busses. > > So the GPMC devices will first get a higher minor/device number. The > internal serial ports should show up first. I don't see the problem > (yet). > > If you need a separate major number (and name) like we do have it now > (between ttySx and ttyOx) then one of requirements would be to tell > Kconfig that one driver can be active at a time. > > For me the ttyS vs ttyO thing is purely cosmetic. I personally don't > like that it is different on different platforms like ttymxc, ttySC, > ttyTHS, … Maybe it's time to migrate them all to one name? (ttyS) Does the end user really care if they have a soc with an omap/imx serial port driver? Or do they just want to access /dev/ttySx and connect to their device? Regards, -- Robert Nelson http://www.rcn-ee.com/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/