From ca67ab5c5afbcec9df199e01838270eb5668af68 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 30 Sep 2017 01:31:15 +0200 Subject: [PATCH] PCI / PM: Add dev_dbg() to print device suspend power states It sometimes is useful to know what power states the kernel thinks it puts PCI devices into during system suspend, so add a dev_dbg() statement for that. Signed-off-by: Rafael J. Wysocki Acked-by: Bjorn Helgaas --- drivers/pci/pci-driver.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 3d04b59ffdb2..9be563067c0c 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -798,6 +798,9 @@ static int pci_pm_suspend_noirq(struct device *dev) pci_prepare_to_sleep(pci_dev); } + dev_dbg(dev, "PCI PM: Suspend power state: %s\n", + pci_power_name(pci_dev->current_state)); + pci_pm_set_unknown_state(pci_dev); /* -- 2.11.0