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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2007-07-05 11:10:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-07-11 16:02:12 -0700 |
| commit | 5b57a6cea464fc686a6bc446f667c05901fa9734 (patch) | |
| tree | a578ced7ef8bd86c700ac5c2ad31e4fcf6249965 /drivers/pci | |
| parent | cca03dec2f0eb8f3c4578e067d2b20a366b940db (diff) | |
| download | linux-3.10-5b57a6cea464fc686a6bc446f667c05901fa9734.tar.gz linux-3.10-5b57a6cea464fc686a6bc446f667c05901fa9734.tar.bz2 linux-3.10-5b57a6cea464fc686a6bc446f667c05901fa9734.zip | |
PCI: hotplug: pciehp: wait for 1 second after power off slot
According to the specification, we must wait for at least 1 second
after turning power off before taking any action that relies on power
having been removed from the slot/adapter.
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')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_ctrl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 7f22caa7017..98e541ffef3 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -197,6 +197,12 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) __FUNCTION__); return; } + /* + * 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); } } @@ -615,6 +621,12 @@ int pciehp_disable_slot(struct slot *p_slot) mutex_unlock(&p_slot->ctrl->crit_sect); return -EINVAL; } + /* + * 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); } ret = remove_board(p_slot); |