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PCI hotplug: pciehp: remove unnecessary wait after turning power off

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The pciehp driver waits for 1000 msec after turning power off to make
sure the power has been completely removed. But this 1000 msec wait is
not needed if a slot doesn't implement power control because software
cannot control the power. Power will be automatically removed at adapter
removal time on such a slot

Tested-by: "Phil Endecott" <phil_pibbu_endecott@chezphil.org>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2008-10-24 14:26:35 +09:00 committed by Jesse Barnes
parent 9eff02e204
commit c7b4fee380
1 changed files with 12 additions and 14 deletions
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26
drivers/pci/hotplug/pciehp_ctrl.c
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@ -178,15 +178,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
"Issue of Slot Power Off command failed\n");
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);
}
/*
* 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);
if (PWR_LED(ctrl))
pslot->hpc_ops->green_led_off(pslot);
@ -286,15 +285,14 @@ static int remove_board(struct slot *p_slot)
"Issue of Slot Disable command failed\n");
return retval;
}
/*
* 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);
}
/*
* 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);
if (PWR_LED(ctrl))
/* turn off Green LED */
p_slot->hpc_ops->green_led_off(p_slot);