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Commit bffe4f72 authored by Yinghai Lu's avatar Yinghai Lu Committed by Jesse Barnes
Browse files

PCI: pciehp: Add pcie_wait_link_not_active() 



Will use it for link disable status checking.

Signed-off-by: default avatarYinghai Lu <yinghai.lu@oracle.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 4e2ce405

drivers/pci/hotplug/pciehp_hpc.c

+15 −4
Original line number Diff line number Diff line
@@ -257,19 +257,30 @@ static bool check_link_active(struct controller *ctrl) 
	return ret;

}



static void pcie_wait_link_active(struct controller *ctrl)

static void __pcie_wait_link_active(struct controller *ctrl, bool active)

{

	int timeout = 1000;



	if (check_link_active(ctrl))

	if (check_link_active(ctrl) == active)

		return;

	while (timeout > 0) {

		msleep(10);

		timeout -= 10;

		if (check_link_active(ctrl))

		if (check_link_active(ctrl) == active)

			return;

	}

	ctrl_dbg(ctrl, "Data Link Layer Link Active not set in 1000 msec\n");

	ctrl_dbg(ctrl, "Data Link Layer Link Active not %s in 1000 msec\n",

			active ? "set" : "cleared");

}



static void pcie_wait_link_active(struct controller *ctrl)

{

	__pcie_wait_link_active(ctrl, true);

}



static void pcie_wait_link_not_active(struct controller *ctrl)

{

	__pcie_wait_link_active(ctrl, false);

}



static bool pci_bus_check_dev(struct pci_bus *bus, int devfn)