Commit e7ea59b6 authored by Miquel Raynal's avatar Miquel Raynal Committed by Stephen Boyd
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clk: mvebu: armada-37xx-periph: change suspend/resume time



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: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190627125245.26788-3-miquel.raynal@bootlin.com


Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 4d8fb494
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+2 −2
Original line number Diff line number Diff line
@@ -714,7 +714,7 @@ 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,
	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(armada_3700_periph_clock_suspend,
				      armada_3700_periph_clock_resume)
};