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authorMiquel Raynal <miquel.raynal@bootlin.com>2019-01-08 19:28:43 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-01-21 16:12:50 +0300
commitf4f1b074691288d024a72601463011b6afd8ac75 (patch)
treeccd5ddce025a58235b68a9572645f94394ff3b62 /drivers/pinctrl/mvebu
parent6daae00243e622dd3feec7965bfe421ad6dd317e (diff)
downloadlinux-f4f1b074691288d024a72601463011b6afd8ac75.tar.xz
pinctrl: armada-37xx: change suspend/resume time
Armada 3700 PCIe IP relies on the pinctrl IP 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(). In the current state, after resuming from a suspend to RAM cycle the PCIe IP is reconfigured before the pinctrl one which produces an interrupt storm. The solution to support PCIe resume operation is to change the "priority" of this pinctrl driver PM callbacks to "_noirq()". Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/mvebu')
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-armada-37xx.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 4b9f2cf94431..6462d3ca7ceb 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -1107,8 +1107,8 @@ static int armada_3700_pinctrl_resume(struct device *dev)
* to other IO drivers.
*/
static const struct dev_pm_ops armada_3700_pinctrl_pm_ops = {
- .suspend_late = armada_3700_pinctrl_suspend,
- .resume_early = armada_3700_pinctrl_resume,
+ .suspend_noirq = armada_3700_pinctrl_suspend,
+ .resume_noirq = armada_3700_pinctrl_resume,
};
#define PINCTRL_ARMADA_37XX_DEV_PM_OPS (&armada_3700_pinctrl_pm_ops)