From 13c65840feab8109194f9490c9870587173cb29d Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Wed, 23 May 2018 17:14:39 -0500 Subject: PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume After a suspend/resume cycle the Presence Detect or Data Link Layer Status Changed bits might be set. If we don't clear them those events will not fire anymore and nothing happens for instance when a device is now hot-unplugged. Fix this by clearing those bits in a newly introduced function pcie_reenable_notification(). This should be fine because immediately after, we check if the adapter is still present by reading directly from the status register. Signed-off-by: Mika Westerberg Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki Reviewed-by: Andy Shevchenko Cc: stable@vger.kernel.org --- drivers/pci/hotplug/pciehp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci/hotplug/pciehp.h') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 88e917c9120f..5f892065585e 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -121,7 +121,7 @@ struct controller *pcie_init(struct pcie_device *dev); int pcie_init_notification(struct controller *ctrl); int pciehp_enable_slot(struct slot *p_slot); int pciehp_disable_slot(struct slot *p_slot); -void pcie_enable_notification(struct controller *ctrl); +void pcie_reenable_notification(struct controller *ctrl); int pciehp_power_on_slot(struct slot *slot); void pciehp_power_off_slot(struct slot *slot); void pciehp_get_power_status(struct slot *slot, u8 *status); -- cgit v1.2.3-59-g8ed1b