From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Miquel Raynal Subject: [PATCH 2/4] clk: mvebu: armada-37xx-periph: change suspend/resume time Date: Fri, 23 Nov 2018 10:44:41 +0100 Message-Id: <20181123094444.27956-3-miquel.raynal@bootlin.com> In-Reply-To: <20181123094444.27956-1-miquel.raynal@bootlin.com> References: <20181123094444.27956-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 , Miquel Raynal List-ID: 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 register 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 43198fb1efa4..0b4be1ce6f8b 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -713,8 +713,8 @@ 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) -- 2.19.1