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Subject[PATCH 5/7] pciehp: Add pcie_wait_link_not_active()
Date
Will use for link disable status checking

Signed-off-by: Yinghai Lu <yinghai.lu@oracle.com>
---
drivers/pci/hotplug/pciehp_hpc.c | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index a1a9879..ea54aef 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)
--
1.7.7


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