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PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3 

On systems where the optional _PS3 ACPI object is not implemented
acpiphp fails to power off the slot.  This is happening because the
current code does not attempt to remove power using the _EJ0 ACPI
object.  This patch restores the _EJ0 evaluation attempt which was
apparently inadvertently removed from the power-off sequence when the
_EJ0 evaluation code was relocated from power_off_slot() to
acpiphp_eject_slot().

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: <lcm@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Gary Hade 2007-07-05 11:10:46 -07:00 committed by Greg Kroah-Hartman
parent 5b57a6cea4
commit bfceafc597
3 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/pci/hotplug/acpiphp.h
View File

@ -211,6 +211,7 @@ typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
extern int acpiphp_enable_slot (struct acpiphp_slot *slot);
extern int acpiphp_disable_slot (struct acpiphp_slot *slot);
extern int acpiphp_eject_slot (struct acpiphp_slot *slot);
extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot);
extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot);
extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);

6
drivers/pci/hotplug/acpiphp_core.c
View File

@ -156,11 +156,15 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
static int disable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
int retval;
dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
/* disable the specified slot */
return acpiphp_disable_slot(slot->acpi_slot);
retval = acpiphp_disable_slot(slot->acpi_slot);
if (!retval)
retval = acpiphp_eject_slot(slot->acpi_slot);
return retval;
}

2
drivers/pci/hotplug/acpiphp_glue.c
View File

@ -1282,7 +1282,7 @@ static unsigned int get_slot_status(struct acpiphp_slot *slot)
/**
* acpiphp_eject_slot - physically eject the slot
*/
static int acpiphp_eject_slot(struct acpiphp_slot *slot)
int acpiphp_eject_slot(struct acpiphp_slot *slot)
{
acpi_status status;
struct acpiphp_func *func;