From patchwork Thu Jun 27 12:52:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 11019661 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8025414E5 for ; Thu, 27 Jun 2019 12:52:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7387C28A71 for ; Thu, 27 Jun 2019 12:52:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6757F28A59; Thu, 27 Jun 2019 12:52:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1FF8428A71 for ; Thu, 27 Jun 2019 12:52:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727093AbfF0Mww (ORCPT ); Thu, 27 Jun 2019 08:52:52 -0400 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:46237 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726653AbfF0Mww (ORCPT ); Thu, 27 Jun 2019 08:52:52 -0400 X-Originating-IP: 86.250.200.211 Received: from localhost.localdomain (lfbn-1-17395-211.w86-250.abo.wanadoo.fr [86.250.200.211]) (Authenticated sender: miquel.raynal@bootlin.com) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id B5A83E0004; Thu, 27 Jun 2019 12:52:49 +0000 (UTC) From: Miquel Raynal To: Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Thomas Petazzoni , Antoine Tenart , Gregory Clement , Maxime Chevallier , Nadav Haklai , Bjorn Helgaas , "Rafael J . Wysocki" , linux-pm@vger.kernel.org, =?utf-8?q?Marek_Beh=C3=BAn?= , Miquel Raynal Subject: [PATCH v3 2/4] clk: mvebu: armada-37xx-periph: change suspend/resume time Date: Thu, 27 Jun 2019 14:52:43 +0200 Message-Id: <20190627125245.26788-3-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190627125245.26788-1-miquel.raynal@bootlin.com> References: <20190627125245.26788-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Armada 3700 PCIe IP relies on the PCIe clock managed by this driver. For reasons related to the PCI core's organization when suspending/resuming, PCI host controller drivers must reconfigure their registers at suspend_noirq()/resume_noirq() which happens after suspend()/suspend_late() and before resume_early()/resume(). Device link support in the clock framework enforce that the clock driver's resume() callback will be called before the PCIe driver's. But, any resume_noirq() callback will be called before all the registered resume() callbacks. The solution to support PCIe resume operation is to change the "priority" of this clock driver PM callbacks to "_noirq()". Signed-off-by: Miquel Raynal --- drivers/clk/mvebu/armada-37xx-periph.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c index 1e18c5a875bd..bee45e43a85f 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -715,8 +715,8 @@ static int __maybe_unused armada_3700_periph_clock_resume(struct device *dev) } static const struct dev_pm_ops armada_3700_periph_clock_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(armada_3700_periph_clock_suspend, - armada_3700_periph_clock_resume) + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(armada_3700_periph_clock_suspend, + armada_3700_periph_clock_resume) }; static int armada_3700_periph_clock_probe(struct platform_device *pdev)