eeepc-laptop: Use ACPI handle to identify rfkill port
[linux-2.6.git] / drivers / platform / x86 / eeepc-laptop.c
index 5f2dd38..2c1abf6 100644 (file)
@@ -585,8 +585,9 @@ static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc)
        return true;
 }
 
-static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc)
+static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 {
+       struct pci_dev *port;
        struct pci_dev *dev;
        struct pci_bus *bus;
        bool blocked = eeepc_wlan_rfkill_blocked(eeepc);
@@ -599,9 +600,16 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc)
        mutex_lock(&eeepc->hotplug_lock);
 
        if (eeepc->hotplug_slot) {
-               bus = pci_find_bus(0, 1);
+               port = acpi_get_pci_dev(handle);
+               if (!port) {
+                       pr_warning("Unable to find port\n");
+                       goto out_unlock;
+               }
+
+               bus = port->subordinate;
+
                if (!bus) {
-                       pr_warning("Unable to find PCI bus 1?\n");
+                       pr_warning("Unable to find PCI bus?\n");
                        goto out_unlock;
                }
 
@@ -609,6 +617,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc)
                        pr_err("Unable to read PCI config space?\n");
                        goto out_unlock;
                }
+
                absent = (l == 0xffffffff);
 
                if (blocked != absent) {
@@ -647,6 +656,17 @@ out_unlock:
        mutex_unlock(&eeepc->hotplug_lock);
 }
 
+static void eeepc_rfkill_hotplug_update(struct eeepc_laptop *eeepc, char *node)
+{
+       acpi_status status = AE_OK;
+       acpi_handle handle;
+
+       status = acpi_get_handle(NULL, node, &handle);
+
+       if (ACPI_SUCCESS(status))
+               eeepc_rfkill_hotplug(eeepc, handle);
+}
+
 static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
 {
        struct eeepc_laptop *eeepc = data;
@@ -654,7 +674,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
        if (event != ACPI_NOTIFY_BUS_CHECK)
                return;
 
-       eeepc_rfkill_hotplug(eeepc);
+       eeepc_rfkill_hotplug(eeepc, handle);
 }
 
 static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc,
@@ -672,6 +692,11 @@ static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc,
                                                     eeepc);
                if (ACPI_FAILURE(status))
                        pr_warning("Failed to register notify on %s\n", node);
+               /*
+                * Refresh pci hotplug in case the rfkill state was
+                * changed during setup.
+                */
+               eeepc_rfkill_hotplug(eeepc, handle);
        } else
                return -ENODEV;
 
@@ -693,6 +718,12 @@ static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc,
                if (ACPI_FAILURE(status))
                        pr_err("Error removing rfkill notify handler %s\n",
                                node);
+                       /*
+                        * Refresh pci hotplug in case the rfkill
+                        * state was changed after
+                        * eeepc_unregister_rfkill_notifier()
+                        */
+               eeepc_rfkill_hotplug(eeepc, handle);
        }
 }
 
@@ -816,11 +847,7 @@ static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc)
                rfkill_destroy(eeepc->wlan_rfkill);
                eeepc->wlan_rfkill = NULL;
        }
-       /*
-        * Refresh pci hotplug in case the rfkill state was changed after
-        * eeepc_unregister_rfkill_notifier()
-        */
-       eeepc_rfkill_hotplug(eeepc);
+
        if (eeepc->hotplug_slot)
                pci_hp_deregister(eeepc->hotplug_slot);
 
@@ -889,11 +916,6 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc)
        eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
        eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
        eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
-       /*
-        * Refresh pci hotplug in case the rfkill state was changed during
-        * setup.
-        */
-       eeepc_rfkill_hotplug(eeepc);
 
 exit:
        if (result && result != -ENODEV)
@@ -928,8 +950,11 @@ static int eeepc_hotk_restore(struct device *device)
        struct eeepc_laptop *eeepc = dev_get_drvdata(device);
 
        /* Refresh both wlan rfkill state and pci hotplug */
-       if (eeepc->wlan_rfkill)
-               eeepc_rfkill_hotplug(eeepc);
+       if (eeepc->wlan_rfkill) {
+               eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P5");
+               eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P6");
+               eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P7");
+       }
 
        if (eeepc->bluetooth_rfkill)
                rfkill_set_sw_state(eeepc->bluetooth_rfkill,