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{ "id": 818002, "url": "http://patchwork.ozlabs.org/api/covers/818002/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/cover/65494652.vEfz4tCBDb@aspire.rjw.lan/", "project": { "id": 35, "url": "http://patchwork.ozlabs.org/api/projects/35/?format=api", "name": "Linux I2C development", "link_name": "linux-i2c", "list_id": "linux-i2c.vger.kernel.org", "list_email": "linux-i2c@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<65494652.vEfz4tCBDb@aspire.rjw.lan>", "list_archive_url": null, "date": "2017-09-24T23:13:29", "name": "[v4,0/3] i2c: designware: Runtime PM aware system sleep handling", "submitter": { "id": 26536, "url": "http://patchwork.ozlabs.org/api/people/26536/?format=api", "name": "Rafael J. Wysocki", "email": "rjw@rjwysocki.net" }, "mbox": "http://patchwork.ozlabs.org/project/linux-i2c/cover/65494652.vEfz4tCBDb@aspire.rjw.lan/mbox/", "series": [ { "id": 4853, "url": "http://patchwork.ozlabs.org/api/series/4853/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-i2c/list/?series=4853", "date": "2017-09-24T23:20:35", "name": "i2c: designware: Runtime PM aware system sleep handling", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/4853/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/818002/comments/", "headers": { "Return-Path": "<linux-i2c-owner@vger.kernel.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-i2c-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3y0kHS2Z3xz9t3t\n\tfor <incoming@patchwork.ozlabs.org>;\n\tMon, 25 Sep 2017 09:40:52 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S932386AbdIXXkt (ORCPT <rfc822;incoming@patchwork.ozlabs.org>);\n\tSun, 24 Sep 2017 19:40:49 -0400", "from cloudserver094114.home.net.pl ([79.96.170.134]:43108 \"EHLO\n\tcloudserver094114.home.net.pl\" rhost-flags-OK-OK-OK-OK)\n\tby vger.kernel.org with ESMTP id S1753552AbdIXXkn (ORCPT\n\t<rfc822; linux-i2c@vger.kernel.org>); Sun, 24 Sep 2017 19:40:43 -0400", "from 79.184.252.54.ipv4.supernova.orange.pl (79.184.252.54) (HELO\n\taspire.rjw.lan)\n\tby serwer1319399.home.pl (79.96.170.134) with SMTP (IdeaSmtpServer\n\t0.82) id 90c134c2f38884a3; Mon, 25 Sep 2017 01:40:41 +0200" ], "From": "\"Rafael J. Wysocki\" <rjw@rjwysocki.net>", "To": "linux-pm@vger.kernel.org", "Cc": "linux-i2c@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>,\n\tlinux-acpi@vger.kernel.org, Kevin Hilman <khilman@kernel.org>,\n\tJarkko Nikula <jarkko.nikula@linux.intel.com>,\n\tAndy Shevchenko <andriy.shevchenko@linux.intel.com>,\n\tMika Westerberg <mika.westerberg@linux.intel.com>,\n\tJisheng Zhang <jszhang@marvell.com>,\n\tJohn Stultz <john.stultz@linaro.org>, Guodong Xu <guodong.xu@linaro.org>,\n\tSumit Semwal <sumit.semwal@linaro.org>,\n\tHaojian Zhuang <haojian.zhuang@linaro.org>,\n\tJohannes Stezenbach <js@sig21.net>, Ulf Hansson <ulf.hansson@linaro.org>,\n\tLee Jones <lee.jones@linaro.org>, Rajat Jain <rajatja@google.com>", "Subject": "[PATCH v4 0/3] i2c: designware: Runtime PM aware system sleep\n\thandling", "Date": "Mon, 25 Sep 2017 01:13:29 +0200", "Message-ID": "<65494652.vEfz4tCBDb@aspire.rjw.lan>", "In-Reply-To": "<3958866.l2qnKDbinI@aspire.rjw.lan>", "References": "<3023226.l5IfJK6GIc@aspire.rjw.lan>\n\t<3958866.l2qnKDbinI@aspire.rjw.lan>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "7Bit", "Content-Type": "text/plain; charset=\"us-ascii\"", "Sender": "linux-i2c-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<linux-i2c.vger.kernel.org>", "X-Mailing-List": "linux-i2c@vger.kernel.org" }, "content": "Hi,\n\nThe original purpose of this set was as stated below:\n\nOn Wednesday, September 6, 2017 1:41:37 AM CEST Rafael J. Wysocki wrote:\n> On Monday, September 4, 2017 1:05:57 AM CEST Rafael J. Wysocki wrote:\n> > Hi,\n> \n> An update related to the dependency on intel-lpss.\n> \n> > The point here is to avoid runtime resuming i2c designware devices during\n> > system suspend in the driver's ->suspend callback in the case when the\n> > ACPI PM domain is not present. That will allow us to deal with the\n> > ACPI PM domain case going forward, among other things.\n> > \n> > The first patch cleans up the runtime PM handling in the i2c-designware-platdrv\n> > _probe() routine so as to make it enable runtime PM in all cases, but prevent\n> > the device from being runtime suspended via pm_runtime_forbid() if\n> > pm_disabled is set.\n> \n> The second one pushed the intel-lpss system suspend/resume callbacks to the\n> late/early stages of suspend/resume, respectively, so that the i2c-designware-platdrv\n> ones can be pushed too.\n> \n> > The second one get rids of some ugly code and makes the PM callbacks of the\n> > driver handle runtime-suspended devices during system suspend/resume.\n> \n> This is the third one and it does less than it did before now.\n> \n\nIn the meantime, though, Rajat reported that there actually were problems with\ni2c-designware being suspended too early (as in some cases dependent device\ndrivers attempted to use i2c during the late suspend phase of system suspend),\nso here it goes again as a fix.\n\nPatches [1-2/3] have not changed since v3 (other than by acquiring tags) and\npatch [3/3] has only been rebased on top of 4.14-rc1 (and has acquired some\ntags too).\n\nThanks,\nRafael" }