From patchwork Mon Oct 14 23:00:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Helgaas X-Patchwork-Id: 11189481 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 770CF139A for ; Mon, 14 Oct 2019 23:00:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BDAA2133F for ; Mon, 14 Oct 2019 23:00:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571094051; bh=XqPAXn+ga1kYewIdDzsVOZ1HjiGk6w5zCGO+lJ563dw=; h=From:To:Cc:Subject:Date:List-ID:From; b=omOkVeJLx/yc3DPVS2QBHX7Ca2Cn/GtK0qlCpt1BsWRC8Lq1x8fmx2QMhjDQcAGCG UGeG2VmWHsoLHz54Ra+QS1Qcr2jNShxHNAp3jQmP0RXggH5MO/GZv4TcGHyS9t69GE f0zVOy7HP9luE0yo0duJNvTGe5SCXc3tSyA4lXyE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726191AbfJNXAr (ORCPT ); Mon, 14 Oct 2019 19:00:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:51280 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726170AbfJNXAr (ORCPT ); Mon, 14 Oct 2019 19:00:47 -0400 Received: from localhost (unknown [69.71.4.100]) (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 05A332133F; Mon, 14 Oct 2019 23:00:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571094046; bh=XqPAXn+ga1kYewIdDzsVOZ1HjiGk6w5zCGO+lJ563dw=; h=From:To:Cc:Subject:Date:From; b=p/bpCy46EIZr1Vr/b4SANZeuQBFWndiUiRdCCXHwqLBJ/RHaIAqgbcv9qR7gfB9+0 cG71WcdBmPlE2U2b6quaFh5SnYCBx6ota6CW07Rj7thn0ZIhL+BShMZvSQ9O7B3hFo SgGKIy2F55a5FT4p2SmMU+fjsFBvJee/P8eV1t30= From: Bjorn Helgaas To: Dexuan Cui Cc: "Rafael J . Wysocki" , Lorenzo Pieralisi , Michael Kelley , Sasha Levin , Haiyang Zhang , KY Srinivasan , Stephen Hemminger , olaf@aepfle.de, apw@canonical.com, jasowang@redhat.com, vkuznets@redhat.com, marcelo.cerri@canonical.com, jackm@mellanox.com, linux-pci@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, driverdev-devel@linuxdriverproject.org, Bjorn Helgaas Subject: [PATCH v3 0/7] PCI: PM: Move to D0 before calling pci_legacy_resume_early() Date: Mon, 14 Oct 2019 18:00:09 -0500 Message-Id: <20191014230016.240912-1-helgaas@kernel.org> X-Mailer: git-send-email 2.23.0.700.g56cf767bdb-goog MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Bjorn Helgaas Dexuan, the important thing here is the first patch, which is your [1], which I modified by doing pci_restore_state() as well as setting to D0: pci_set_power_state(pci_dev, PCI_D0); pci_restore_state(pci_dev); I'm proposing some more patches on top. None are relevant to the problem you're solving; they're just minor doc and other updates in the same area. Rafael, if you have a chance to look at these, I'd appreciate it. I tried to make the doc match the code, but I'm no PM expert. [1] https://lore.kernel.org/r/KU1P153MB016637CAEAD346F0AA8E3801BFAD0@KU1P153MB0166.APCP153.PROD.OUTLOOK.COM Dexuan Cui (1): PCI/PM: Always return devices to D0 when thawing Bjorn Helgaas (6): PCI/PM: Correct pci_pm_thaw_noirq() documentation PCI/PM: Clear PCIe PME Status even for legacy power management PCI/PM: Run resume fixups before disabling wakeup events PCI/PM: Make power management op coding style consistent PCI/PM: Wrap long lines in documentation PCI/MSI: Move power state check out of pci_msi_supported() Documentation/power/pci.rst | 38 +++++++------- drivers/pci/msi.c | 6 +-- drivers/pci/pci-driver.c | 99 ++++++++++++++++++------------------- 3 files changed, 71 insertions(+), 72 deletions(-)