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| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2019-06-27 14:52:43 +0200 |
|---|---|---|
| committer |   Stephen Boyd <sboyd@kernel.org> | 2019-10-03 14:00:20 -0700 |
| commit | e7ea59b6dc6ddb86dabf88c11cd6748da2313b37 (patch) | |
| tree | b50339e4f31c4e1a2e58e3ee9a758cd9e0044881 /drivers/clk/mvebu | |
| parent | clk: mvebu: armada-37xx-periph: add PCIe gated clock (diff) | |
| download | linux-dev-e7ea59b6dc6ddb86dabf88c11cd6748da2313b37.tar.xz linux-dev-e7ea59b6dc6ddb86dabf88c11cd6748da2313b37.zip | |
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: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190627125245.26788-3-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mvebu')
| -rw-r--r-- | drivers/clk/mvebu/armada-37xx-periph.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c index d9d84299da46..f5746f9ea929 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -714,8 +714,8 @@ 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) |