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authorYinghai Lu <yinghai@kernel.org>2012-01-27 10:55:13 -0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-02-14 08:45:01 -0800
commitbffe4f72fcdd92bfb24909d586d1636e5cec500d (patch)
tree838c8a55fcafd065a01c2b054119f483e25c6e78 /drivers/pci/hotplug/pciehp_hpc.c
parent4e2ce405b24eef9f4cc947bf5f430ca27b474f1f (diff)
PCI: pciehp: Add pcie_wait_link_not_active()
Will use it for link disable status checking. Signed-off-by: Yinghai Lu <yinghai.lu@oracle.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c19
1 files 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)