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 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 4822AC433E0 for ; Wed, 1 Jul 2020 23:32:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 222C02077D for ; Wed, 1 Jul 2020 23:32:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="SEfMRkGL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726877AbgGAXcy (ORCPT ); Wed, 1 Jul 2020 19:32:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726404AbgGAXcx (ORCPT ); Wed, 1 Jul 2020 19:32:53 -0400 Received: from mail-io1-xd42.google.com (mail-io1-xd42.google.com [IPv6:2607:f8b0:4864:20::d42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E2A4C08C5C1 for ; Wed, 1 Jul 2020 16:32:53 -0700 (PDT) Received: by mail-io1-xd42.google.com with SMTP id i4so26889516iov.11 for ; Wed, 01 Jul 2020 16:32:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=ncquM6OLcDeIT53Omca9Xzz77nlIMO4GAeOb4K+UNvw=; b=SEfMRkGL1dgrNwrNHH5+/9DC3GB+zivUGhrMlo1GxPGOPKMTJqjzoM225ylK8VPZJh zGVJFG1ejaNt694aa67M/WUNQA0B/74fV4lDTx857gVb/+Jav1Dj765JjgQruRZYJD0t QLmmRFbHLIkdCTakrpES4owCe/bmLXRi3rUeTzvxZJ9Mzh5UqplLWYcgTL457x2zXHcn DiwtV9rMB4ahwWgOaOf8kzvw4wpIMBykUhi5RM6ZH47ehNEvzdhLkqWnkDuUkHAA8J3I 9qTPWKa7gkR80wy+t9v7hUUXhvtUbz0wc57G2oIi9me1DYS6SLWrB0Xen7TrtP5pKYYo VrZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ncquM6OLcDeIT53Omca9Xzz77nlIMO4GAeOb4K+UNvw=; b=Kb1ZVXfep2WCFhPCRSS3Evx+LmyEQqGWV8cL1liY2bN1DGGaA+1NSJYMDh0fzTBTf2 Q9IqpWR1aZiM9eSdW/YxJ/ts7cMdLi2UXBIajMJLav8wBvwpbTa2oaq/8j8b2jFfsQUs hWn1Eld8e1PpH464NcuxXVKBCy/7h1ICOaG3pwGJE3BZy0inClyE6YyscjmFYlrTTxTv 3p4mEVlKKUYOJLroxW0mKbDzJxHtd599gj1ggW2ARLaAYBaDUW+pGHDDQBHLHCbmMHnb +vfRvJc4lkyk2ovyewTJHfbF2eshhs/Pj+tr6h/vhDDDF+J5gNqdhcv0Ugvig6RxNtOH BNjg== X-Gm-Message-State: AOAM531r34rRb8uqQfSQCaA7/OUpO4gn91VjKIRFfTcAHYGrQMJsTIff sTeYarIO+JbgV76JlQNhgfqPsw== X-Google-Smtp-Source: ABdhPJwiZ4rUdX/u3oCt6f2yg2mn2UIJs4lLCQsH2KJcwpJVSl8MVKj0VLkOemvJamByUlmtP1x5ng== X-Received: by 2002:a6b:8d04:: with SMTP id p4mr4722342iod.174.1593646372855; Wed, 01 Jul 2020 16:32:52 -0700 (PDT) Received: from ziepe.ca ([206.223.160.26]) by smtp.gmail.com with ESMTPSA id s190sm4204807ilc.28.2020.07.01.16.32.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Jul 2020 16:32:52 -0700 (PDT) Received: from jgg by mlx with local (Exim 4.93) (envelope-from ) id 1jqmDi-002glx-PJ; Wed, 01 Jul 2020 20:32:50 -0300 Date: Wed, 1 Jul 2020 20:32:50 -0300 From: Jason Gunthorpe To: Mark Brown Cc: Ranjani Sridharan , Greg KH , Takashi Iwai , Pierre-Louis Bossart , Jeff Kirsher , davem@davemloft.net, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, Fred Oh , lee.jones@linaro.org Subject: Re: [net-next v4 10/12] ASoC: SOF: Introduce descriptors for SOF client Message-ID: <20200701233250.GP25301@ziepe.ca> References: <20200527071733.GB52617@kroah.com> <20200629203317.GM5499@sirena.org.uk> <20200629225959.GF25301@ziepe.ca> <20200630103141.GA5272@sirena.org.uk> <20200630113245.GG25301@ziepe.ca> <936d8b1cbd7a598327e1b247441fa055d7083cb6.camel@linux.intel.com> <20200630172710.GJ25301@ziepe.ca> <20200701095049.GA5988@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200701095049.GA5988@sirena.org.uk> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, Jul 01, 2020 at 10:50:49AM +0100, Mark Brown wrote: > On Tue, Jun 30, 2020 at 02:27:10PM -0300, Jason Gunthorpe wrote: > > > I wonder if SW_MFD might me more apt though? Based on Mark's remarks > > current MFD is 'hw' MFD where the created platform_devices expect a > > MMIO pass through, while this is a MFD a device-specific SW > > interfacing layer. > > Another part of this is that there's not a clean cut over between MMIO > and not using any hardware resources at all - for example a device might > be connected over I2C but use resources to distribute interrupts to > subdevices. How does the subdevice do anything if it only received an interrupt? That sounds rather more like virtual bus's use case.. Jason