From bffe4f72fcdd92bfb24909d586d1636e5cec500d Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 27 Jan 2012 10:55:13 -0800 Subject: [PATCH] PCI: pciehp: Add pcie_wait_link_not_active() Will use it for link disable status checking. Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/pciehp_hpc.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index a8c1f74a1e3..4ebdc1de2cb 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -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) -- 2.20.1