Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756229Ab3HGPYZ (ORCPT ); Wed, 7 Aug 2013 11:24:25 -0400 Received: from h1446028.stratoserver.net ([85.214.92.142]:49553 "EHLO mail.ahsoftware.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754843Ab3HGPYT (ORCPT ); Wed, 7 Aug 2013 11:24:19 -0400 Message-ID: <52026635.1010602@ahsoftware.de> Date: Wed, 07 Aug 2013 17:22:29 +0200 From: Alexander Holler User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Greg Kroah-Hartman CC: Pantelis Antoniou , Tony Lindgren , Russell King , =?UTF-8?B?QmVub8OudCBDb3Vzc25v?= , Paul Walmsley , Sourav Poddar , Russ Dill , Felipe Balbi , Koen Kooi , linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/5] arm: omap: Proper cleanups for omap_device References: <1375775624-12250-1-git-send-email-panto@antoniou-consulting.com> <1375775624-12250-6-git-send-email-panto@antoniou-consulting.com> <20130806093356.GA27889@kroah.com> <8C31ED90-E9EF-4264-858A-17CC2536B552@antoniou-consulting.com> <20130806101421.GA29283@kroah.com> <5200FC09.7080108@ahsoftware.de> <20130807055227.GB5304@kroah.com> In-Reply-To: <20130807055227.GB5304@kroah.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1360 Lines: 37 Am 07.08.2013 07:52, schrieb Greg Kroah-Hartman: > On Tue, Aug 06, 2013 at 03:37:13PM +0200, Alexander Holler wrote: >> Am 06.08.2013 12:14, schrieb Greg Kroah-Hartman: >> >>>> What exactly is a platform device anyway? >>> >>> Originally it was a "something that wasn't connected to a bus, but just >>> had memory-mapped i/o." Like the PS2 keyboard controller. >>> >>> Embedded systems got ahold of this and went to town, and made everything >>> a platform device because they could, and no one was paying attention. >>> >>> Then OF came along and used it as well, and you know the rest... >>> >>> I think we need to get the ACPI and OF people, and me, in a room >>> together at the kernel summit and not let us out until we have this all >>> worked out. >> >> MFD uses platform devices too. > > Ugh, I've been avoiding looking at mfd for a long time now, and really > don't want to start now... > I've just mentioned it to suggest that platform devices seem to be used all over the kernel as the generic (minimal) form of a device driver. At least that is the impression I've got. Regards, Alexander Holler -- 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/