1 files changed, 9 insertions, 97 deletions

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 44191db1f050..b6691cc8230b 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -303,12 +303,6 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
         if (acpi_has_method(handle, "_STA"))
                 newfunc->flags |= FUNC_HAS_STA;
 
-        if (acpi_has_method(handle, "_PS0"))
-                newfunc->flags |= FUNC_HAS_PS0;
-
-        if (acpi_has_method(handle, "_PS3"))
-                newfunc->flags |= FUNC_HAS_PS3;
-
         if (acpi_has_method(handle, "_DCK"))
                 newfunc->flags |= FUNC_HAS_DCK;
 
@@ -366,7 +360,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
 
         if (pci_bus_read_dev_vendor_id(pbus, PCI_DEVFN(device, function),
                                        &val, 60*1000))
-                slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
+                slot->flags |= SLOT_ENABLED;
 
         if (is_dock_device(handle)) {
                 /* we don't want to call this device's _EJ0
@@ -446,73 +440,6 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
         mutex_unlock(&bridge_mutex);
 }
 
-static int power_on_slot(struct acpiphp_slot *slot)
-{
-        acpi_status status;
-        struct acpiphp_func *func;
-        int retval = 0;
-
-        /* if already enabled, just skip */
-        if (slot->flags & SLOT_POWEREDON)
-                goto err_exit;
-
-        list_for_each_entry(func, &slot->funcs, sibling) {
-                if (func->flags & FUNC_HAS_PS0) {
-                        dbg("%s: executing _PS0\n", __func__);
-                        status = acpi_evaluate_object(func_to_handle(func),
-                                                      "_PS0", NULL, NULL);
-                        if (ACPI_FAILURE(status)) {
-                                warn("%s: _PS0 failed\n", __func__);
-                                retval = -1;
-                                goto err_exit;
-                        } else
-                                break;
-                }
-        }
-
-        /* TBD: evaluate _STA to check if the slot is enabled */
-
-        slot->flags |= SLOT_POWEREDON;
-
- err_exit:
-        return retval;
-}
-
-
-static int power_off_slot(struct acpiphp_slot *slot)
-{
-        acpi_status status;
-        struct acpiphp_func *func;
-
-        int retval = 0;
-
-        /* if already disabled, just skip */
-        if ((slot->flags & SLOT_POWEREDON) == 0)
-                goto err_exit;
-
-        list_for_each_entry(func, &slot->funcs, sibling) {
-                if (func->flags & FUNC_HAS_PS3) {
-                        status = acpi_evaluate_object(func_to_handle(func),
-                                                      "_PS3", NULL, NULL);
-                        if (ACPI_FAILURE(status)) {
-                                warn("%s: _PS3 failed\n", __func__);
-                                retval = -1;
-                                goto err_exit;
-                        } else
-                                break;
-                }
-        }
-
-        /* TBD: evaluate _STA to check if the slot is disabled */
-
-        slot->flags &= (~SLOT_POWEREDON);
-
- err_exit:
-        return retval;
-}
-
-
-
 /**
  * acpiphp_max_busnr - return the highest reserved bus number under the given bus.
  * @bus: bus to start search with
@@ -559,8 +486,13 @@ static void acpiphp_bus_trim(acpi_handle handle)
  */
 static void acpiphp_bus_add(acpi_handle handle)
 {
+        struct acpi_device *adev = NULL;
+
         acpiphp_bus_trim(handle);
         acpi_bus_scan(handle);
+        acpi_bus_get_device(handle, &adev);
+        if (adev)
+                acpi_device_set_power(adev, ACPI_STATE_D0);
 }
 
 static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
@@ -1095,23 +1027,8 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot)
         int retval;
 
         mutex_lock(&slot->crit_sect);
-
-        /* wake up all functions */
-        retval = power_on_slot(slot);
-        if (retval)
-                goto err_exit;
-
-        if (get_slot_status(slot) == ACPI_STA_ALL) {
-                /* configure all functions */
-                retval = enable_device(slot);
-                if (retval)
-                        power_off_slot(slot);
-        } else {
-                dbg("%s: Slot status is not ACPI_STA_ALL\n", __func__);
-                power_off_slot(slot);
-        }
-
- err_exit:
+        /* configure all functions */
+        retval = enable_device(slot);
         mutex_unlock(&slot->crit_sect);
         return retval;
 }
@@ -1132,11 +1049,6 @@ int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot)
         if (retval)
                 goto err_exit;
 
-        /* power off all functions */
-        retval = power_off_slot(slot);
-        if (retval)
-                goto err_exit;
-
         list_for_each_entry(func, &slot->funcs, sibling)
                 if (func->flags & FUNC_HAS_EJ0) {
                         acpi_handle handle = func_to_handle(func);
@@ -1159,7 +1071,7 @@ int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot)
  */
 u8 acpiphp_get_power_status(struct acpiphp_slot *slot)
 {
-        return (slot->flags & SLOT_POWEREDON);
+        return (slot->flags & SLOT_ENABLED);
 }