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=0.3 required=3.0 tests=DATE_IN_PAST_03_06, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,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 9738CC35242 for ; Fri, 14 Feb 2020 20:02:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5461124650 for ; Fri, 14 Feb 2020 20:02:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581710566; bh=QcIJ80cSrTLbc0ijPcYyAEl69PScjRPdVxZgDXvJ9xc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=oMG02mgtMBcuJx7wQ35d5hA7KxgbGpuTVD/qGXeneDH9nZMT1CmgoHGp/jZITduNE Db/xFW4iydUnreL5ZXSlHlT2GZ7c5IYTExnRqjWuXB9pGolXD2V/ylaQpEAoLALCjs PkxMMcBZnWvy0W50slTE2OAWQmR4LCcG9hEHv5ww= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389579AbgBNUCp (ORCPT ); Fri, 14 Feb 2020 15:02:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:34376 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389136AbgBNUCo (ORCPT ); Fri, 14 Feb 2020 15:02:44 -0500 Received: from localhost (unknown [12.246.51.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EE68B22314; Fri, 14 Feb 2020 20:02:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581710564; bh=QcIJ80cSrTLbc0ijPcYyAEl69PScjRPdVxZgDXvJ9xc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BcAQT7b3UsozO8tgtKaqo0+sV/Y3pR/4in8pvPvVbfeyVmmGtiURftnAz3sPr0ADO ubEZXiZVhn4f/gAdDv5P9tSLslG6flQmBhk/2bmHUxK65O6y7mKiZjppO0tRApp+0C AK1LIajBj0wi4Mzq5Uy5O3d4BI9UqXf+PHT/T/28= Date: Fri, 14 Feb 2020 08:49:19 -0800 From: Greg KH To: Pierre-Louis Bossart Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, vkoul@kernel.org, jank@cadence.com, srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com, Bard liao , Rander Wang , Ranjani Sridharan Subject: Re: [RFC PATCH 0/2] soundwire: add master_device/driver support Message-ID: <20200214164919.GB4016987@kroah.com> References: <20200201042011.5781-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200201042011.5781-1-pierre-louis.bossart@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 31, 2020 at 10:20:09PM -0600, Pierre-Louis Bossart wrote: > The SoundWire master representation needs to evolve to take into account: > > a) a May 2019 recommendation from Greg KH to remove platform devices > > b) the need on Intel platforms to support hardware startup only once > the power rail dependencies are settled. The SoundWire master is not > an independent IP at all. > > c) the need to deal with external wakes handled by the PCI subsystem > in specific low-power modes > > In case it wasn't clear, the SoundWire subsystem is currently unusable > with v5.5 on devices hitting the shelves very soon (race conditions, > power management, suspend/resume, etc). v5.6 will only provide > interface changes and no functional improvement. We've circled on the > same concepts since September 2019, and I hope this direction is now > aligned with the suggestions from Vinod Koul and that we can target > v5.7 as the 'SoundWire just works(tm)' version. > > This series is provided as an RFC since it depends on patches already > for review. Both of these look sane to me, nice work! Reviewed-by: Greg Kroah-Hartman