3 files changed, 1 insertions, 144 deletions

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 0a368547e63..e6cf096498b 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -81,7 +81,6 @@ struct slot {
         struct hpc_ops *hpc_ops;
         struct hotplug_slot *hotplug_slot;
         struct list_head        slot_list;
-        unsigned long last_emi_toggle;
         struct delayed_work work;       /* work for button event */
         struct mutex lock;
 };
@@ -203,8 +202,6 @@ struct hpc_ops {
         int (*set_attention_status)(struct slot *slot, u8 status);
         int (*get_latch_status)(struct slot *slot, u8 *status);
         int (*get_adapter_status)(struct slot *slot, u8 *status);
-        int (*get_emi_status)(struct slot *slot, u8 *status);
-        int (*toggle_emi)(struct slot *slot);
         int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
         int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
         int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val);
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index fb254b2454d..eb183d1d091 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -85,99 +85,6 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = {
         .get_cur_bus_speed =    get_cur_bus_speed,
 };
 
-/*
- * Check the status of the Electro Mechanical Interlock (EMI)
- */
-static int get_lock_status(struct hotplug_slot *hotplug_slot, u8 *value)
-{
-        struct slot *slot = hotplug_slot->private;
-        return (slot->hpc_ops->get_emi_status(slot, value));
-}
-
-/*
- * sysfs interface for the Electro Mechanical Interlock (EMI)
- * 1 == locked, 0 == unlocked
- */
-static ssize_t lock_read_file(struct hotplug_slot *slot, char *buf)
-{
-        int retval;
-        u8 value;
-
-        retval = get_lock_status(slot, &value);
-        if (retval)
-                goto lock_read_exit;
-        retval = sprintf (buf, "%d\n", value);
-
-lock_read_exit:
-        return retval;
-}
-
-/*
- * Change the status of the Electro Mechanical Interlock (EMI)
- * This is a toggle - in addition there must be at least 1 second
- * in between toggles.
- */
-static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status)
-{
-        struct slot *slot = hotplug_slot->private;
-        int retval;
-        u8 value;
-
-        mutex_lock(&slot->ctrl->crit_sect);
-
-        /* has it been >1 sec since our last toggle? */
-        if ((get_seconds() - slot->last_emi_toggle) < 1) {
-                mutex_unlock(&slot->ctrl->crit_sect);
-                return -EINVAL;
-        }
-
-        /* see what our current state is */
-        retval = get_lock_status(hotplug_slot, &value);
-        if (retval || (value == status))
-                goto set_lock_exit;
-
-        slot->hpc_ops->toggle_emi(slot);
-set_lock_exit:
-        mutex_unlock(&slot->ctrl->crit_sect);
-        return 0;
-}
-
-/*
- * sysfs interface which allows the user to toggle the Electro Mechanical
- * Interlock.  Valid values are either 0 or 1.  0 == unlock, 1 == lock
- */
-static ssize_t lock_write_file(struct hotplug_slot *hotplug_slot,
-                const char *buf, size_t count)
-{
-        struct slot *slot = hotplug_slot->private;
-        unsigned long llock;
-        u8 lock;
-        int retval = 0;
-
-        llock = simple_strtoul(buf, NULL, 10);
-        lock = (u8)(llock & 0xff);
-
-        switch (lock) {
-                case 0:
-                case 1:
-                        retval = set_lock_status(hotplug_slot, lock);
-                        break;
-                default:
-                        ctrl_err(slot->ctrl, "%d is an invalid lock value\n",
-                                 lock);
-                        retval = -EINVAL;
-        }
-        if (retval)
-                return retval;
-        return count;
-}
-
-static struct hotplug_slot_attribute hotplug_slot_attr_lock = {
-        .attr = {.name = "lock", .mode = S_IFREG | S_IRUGO | S_IWUSR},
-        .show = lock_read_file,
-        .store = lock_write_file
-};
-
 /**
  * release_slot - free up the memory used by a slot
  * @hotplug_slot: slot to free
@@ -236,17 +143,6 @@ static int init_slots(struct controller *ctrl)
                 get_attention_status(hotplug_slot, &info->attention_status);
                 get_latch_status(hotplug_slot, &info->latch_status);
                 get_adapter_status(hotplug_slot, &info->adapter_status);
-                /* create additional sysfs entries */
-                if (EMI(ctrl)) {
-                        retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj,
-                                &hotplug_slot_attr_lock.attr);
-                        if (retval) {
-                                pci_hp_deregister(hotplug_slot);
-                                ctrl_err(ctrl, "Cannot create additional sysfs "
-                                         "entries\n");
-                                goto error_info;
-                        }
-                }
         }
 
         return 0;
@@ -261,13 +157,8 @@ error:
 static void cleanup_slots(struct controller *ctrl)
 {
         struct slot *slot;
-
-        list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
-                if (EMI(ctrl))
-                        sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj,
-                                &hotplug_slot_attr_lock.attr);
+        list_for_each_entry(slot, &ctrl->slot_list, slot_list)
                 pci_hp_deregister(slot->hotplug_slot);
-        }
 }
 
 /*
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 07bd3215114..52813257e5b 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -422,35 +422,6 @@ static int hpc_query_power_fault(struct slot *slot)
         return !!(slot_status & PCI_EXP_SLTSTA_PFD);
 }
 
-static int hpc_get_emi_status(struct slot *slot, u8 *status)
-{
-        struct controller *ctrl = slot->ctrl;
-        u16 slot_status;
-        int retval;
-
-        retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
-        if (retval) {
-                ctrl_err(ctrl, "Cannot check EMI status\n");
-                return retval;
-        }
-        *status = !!(slot_status & PCI_EXP_SLTSTA_EIS);
-        return retval;
-}
-
-static int hpc_toggle_emi(struct slot *slot)
-{
-        u16 slot_cmd;
-        u16 cmd_mask;
-        int rc;
-
-        slot_cmd = PCI_EXP_SLTCTL_EIC;
-        cmd_mask = PCI_EXP_SLTCTL_EIC;
-        rc = pcie_write_cmd(slot->ctrl, slot_cmd, cmd_mask);
-        slot->last_emi_toggle = get_seconds();
-
-        return rc;
-}
-
 static int hpc_set_attention_status(struct slot *slot, u8 value)
 {
         struct controller *ctrl = slot->ctrl;
@@ -874,8 +845,6 @@ static struct hpc_ops pciehp_hpc_ops = {
         .get_attention_status           = hpc_get_attention_status,
         .get_latch_status               = hpc_get_latch_status,
         .get_adapter_status             = hpc_get_adapter_status,
-        .get_emi_status                 = hpc_get_emi_status,
-        .toggle_emi                     = hpc_toggle_emi,
 
         .get_max_bus_speed              = hpc_get_max_lnk_speed,
         .get_cur_bus_speed              = hpc_get_cur_lnk_speed,