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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2007-12-20 19:43:56 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-01 15:04:28 -0800
commit8bb7c7af1ff2a9e9e0936dbdd15901c80329c7af (patch)
tree0368c41b8cec3b8f4498568abc4e593e8c2ec49b /drivers/pci/hotplug/pciehp_hpc.c
parentd48b5d3a50c06357c721e81fa9354598282b6549 (diff)
pciehp: wait for 1000ms before LED operation after power off
After turning power off, we must wait for at least 1 second *before* LED operation. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 8c2d6c9b92c5..b2cde04ede1a 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -674,6 +674,13 @@ static int hpc_power_off_slot(struct slot * slot)
dbg("%s: SLOTCTRL %x write cmd %x\n",
__FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ /*
+ * After turning power off, we must wait for at least 1 second
+ * before taking any action that relies on power having been
+ * removed from the slot/adapter.
+ */
+ msleep(1000);
+
return retval;
}