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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 D846FC04AAF for ; Tue, 21 May 2019 11:50:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A635D21773 for ; Tue, 21 May 2019 11:50:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=haabendal.dk header.i=@haabendal.dk header.b="nwqFvBDK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728056AbfEULu3 (ORCPT ); Tue, 21 May 2019 07:50:29 -0400 Received: from mailrelay1-1.pub.mailoutpod1-cph3.one.com ([46.30.210.182]:48214 "EHLO mailrelay1-1.pub.mailoutpod1-cph3.one.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727743AbfEULu3 (ORCPT ); Tue, 21 May 2019 07:50:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=haabendal.dk; s=20140924; h=content-type:mime-version:message-id:in-reply-to:date:references:subject:cc: to:from:from; bh=eEuX7iutFvi1HOGEPs3UIDtx4qkK8OvCvI0OJsFeod4=; b=nwqFvBDK3fqszHkd0uNt2gYOdVmI4rKnl55oFSOB004/238Qo9tuSBi76k5fzsXp0ooR0KTAp1OPF 9FDwdQ67qmf9DKj+wceYctN0d/y+GxYqAEojl1RRAm79+cCxsbHTgMyeucBMcBC61BgTMl/bQ5P3c9 15Iz2cMv3JgJCNqo= X-HalOne-Cookie: 9767e542c6c60036e2d58a9f057583b96d4064d7 X-HalOne-ID: 9efd9c0d-7bbe-11e9-bc27-d0431ea8a283 Received: from localhost (unknown [193.163.1.7]) by mailrelay1.pub.mailoutpod1-cph3.one.com (Halon) with ESMTPSA id 9efd9c0d-7bbe-11e9-bc27-d0431ea8a283; Tue, 21 May 2019 11:50:25 +0000 (UTC) From: Esben Haabendal To: Greg Kroah-Hartman Cc: Lee Jones , linux-serial@vger.kernel.org, Jiri Slaby , Nishanth Menon , Vignesh R , Tony Lindgren , Lokesh Vutla , Florian Fainelli , linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] serial: 8250: Add support for 8250/16550 as MFD function References: <20190426084038.6377-3-esben@geanix.com> <20190507114905.GB29524@dell> <87o94ejwrx.fsf@haabendal.dk> <20190507133844.GA6194@dell> <87bm05mpmx.fsf@haabendal.dk> <20190514104741.GO4319@dell> <20190514122618.GA18859@kroah.com> <87imudky2o.fsf@haabendal.dk> <20190521100904.GA13612@kroah.com> <87pnocm59v.fsf@haabendal.dk> <20190521111817.GA24911@kroah.com> Date: Tue, 21 May 2019 13:50:25 +0200 In-Reply-To: <20190521111817.GA24911@kroah.com> (Greg Kroah-Hartman's message of "Tue, 21 May 2019 13:18:17 +0200") Message-ID: <87lfz0m3ge.fsf@haabendal.dk> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Greg Kroah-Hartman writes: > On Tue, May 21, 2019 at 01:11:08PM +0200, Esben Haabendal wrote: >> Greg Kroah-Hartman writes: >> >> >> I will try ad hold back with this thread until you get back to it. >> > >> > Ok, I have no idea what is going on here, sorry. This is a really long >> > and meandering thread, and I can't even find the original patches in my >> > queue. >> > >> > So can you resend things and we can start over? :) >> >> Will do. >> >> > But note, using a mfd for a uart seems VERY odd to me... >> >> Ok. In my case, I have a pcie card with an fpga which includes 5 uart >> ports, 3 ethernet interfaces and a number of custom IP blocks. >> I believe that an mfd driver for that pcie card in that case. > > I believe you need to fix that fpga to expose individual pci devices > such that you can properly bind the individual devices to the expected > drivers :) Well, that is really out-of-scope of what I am doing here. > Seriously, who makes such a broken fpga device that goes against the PCI > spec that way? Well, not so much as "goes against it", as "ignores all > of the proper ideas of the past 20 years for working with PCI devices". Might be. But that is the firmware I have to work with here, and I still hope we can find a good solution for implementing a driver without having to maintain out-of-tree patches. /Esben