66 files changed, 4113 insertions, 1712 deletions

diff --git a/Documentation/acpi/method-customizing.txt b/Documentation/acpi/method-customizing.txt
new file mode 100644
index 000000000000..e628cd23ca80
--- /dev/null
+++ b/Documentation/acpi/method-customizing.txt
@@ -0,0 +1,66 @@
+Linux ACPI Custom Control Method How To
+=======================================
+
+Written by Zhang Rui <rui.zhang@intel.com>
+
+
+Linux supports customizing ACPI control methods at runtime.
+
+Users can use this to
+1. override an existing method which may not work correctly,
+   or just for debugging purposes.
+2. insert a completely new method in order to create a missing
+   method such as _OFF, _ON, _STA, _INI, etc.
+For these cases, it is far simpler to dynamically install a single
+control method rather than override the entire DSDT, because kernel
+rebuild/reboot is not needed and test result can be got in minutes.
+
+Note: Only ACPI METHOD can be overridden, any other object types like
+      "Device", "OperationRegion", are not recognized.
+Note: The same ACPI control method can be overridden for many times,
+      and it's always the latest one that used by Linux/kernel.
+
+1. override an existing method
+   a) get the ACPI table via ACPI sysfs I/F. e.g. to get the DSDT,
+      just run "cat /sys/firmware/acpi/tables/DSDT > /tmp/dsdt.dat"
+   b) disassemble the table by running "iasl -d dsdt.dat".
+   c) rewrite the ASL code of the method and save it in a new file,
+   d) package the new file (psr.asl) to an ACPI table format.
+      Here is an example of a customized \_SB._AC._PSR method,
+
+      DefinitionBlock ("", "SSDT", 1, "", "", 0x20080715)
+      {
+        External (ACON)
+
+        Method (\_SB_.AC._PSR, 0, NotSerialized)
+        {
+                Store ("In AC _PSR", Debug)
+                Return (ACON)
+        }
+      }
+      Note that the full pathname of the method in ACPI namespace
+      should be used.
+      And remember to use "External" to declare external objects.
+   e) assemble the file to generate the AML code of the method.
+      e.g. "iasl psr.asl" (psr.aml is generated as a result)
+   f) mount debugfs by "mount -t debugfs none /sys/kernel/debug"
+   g) override the old method via the debugfs by running
+      "cat /tmp/psr.aml > /sys/kernel/debug/acpi/custom_method"
+
+2. insert a new method
+   This is easier than overriding an existing method.
+   We just need to create the ASL code of the method we want to
+   insert and then follow the step c) ~ g) in section 1.
+
+3. undo your changes
+   The "undo" operation is not supported for a new inserted method
+   right now, i.e. we can not remove a method currently.
+   For an overrided method, in order to undo your changes, please
+   save a copy of the method original ASL code in step c) section 1,
+   and redo step c) ~ g) to override the method with the original one.
+
+
+Note: We can use a kernel with multiple custom ACPI method running,
+      But each individual write to debugfs can implement a SINGLE
+      method override. i.e. if we want to insert/override multiple
+      ACPI methods, we need to redo step c) ~ g) for multiple times.
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 21ab9357326d..870d190fe617 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -474,3 +474,22 @@ Why:	Obsoleted by the adt7475 driver.
 Who:    Jean Delvare <khali@linux-fr.org>
 
 ---------------------------
+What:   Support for lcd_switch and display_get in asus-laptop driver
+When:   March 2010
+Why:    These two features use non-standard interfaces. There are the
+        only features that really need multiple path to guess what's
+        the right method name on a specific laptop.
+
+        Removing them will allow to remove a lot of code an significantly
+        clean the drivers.
+
+        This will affect the backlight code which won't be able to know
+        if the backlight is on or off. The platform display file will also be
+        write only (like the one in eeepc-laptop).
+
+        This should'nt affect a lot of user because they usually know
+        when their display is on or off.
+
+Who:    Corentin Chary <corentin.chary@gmail.com>
+
+----------------------------
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index aafcaa634191..169091f75e6d 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -1,7 +1,7 @@
                      ThinkPad ACPI Extras Driver
 
-                            Version 0.23
-                          April 10th, 2009
+                            Version 0.24
+                        December 11th,  2009
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -460,6 +460,8 @@ event	code	Key		Notes
                                 For Lenovo ThinkPads with a new
                                 BIOS, it has to be handled either
                                 by the ACPI OSI, or by userspace.
+                                The driver does the right thing,
+                                never mess with this.
 0x1011  0x10    FN+END          Brightness down.  See brightness
                                 up for details.
 
@@ -582,46 +584,15 @@ with hotkey_report_mode.
 
 Brightness hotkey notes:
 
-These are the current sane choices for brightness key mapping in
-thinkpad-acpi:
+Don't mess with the brightness hotkeys in a Thinkpad.  If you want
+notifications for OSD, use the sysfs backlight class event support.
 
-For IBM and Lenovo models *without* ACPI backlight control (the ones on
-which thinkpad-acpi will autoload its backlight interface by default,
-and on which ACPI video does not export a backlight interface):
-
-1. Don't enable or map the brightness hotkeys in thinkpad-acpi, as
-   these older firmware versions unfortunately won't respect the hotkey
-   mask for brightness keys anyway, and always reacts to them.  This
-   usually work fine, unless X.org drivers are doing something to block
-   the BIOS.  In that case, use (3) below.  This is the default mode of
-   operation.
-
-2. Enable the hotkeys, but map them to something else that is NOT
-   KEY_BRIGHTNESS_UP/DOWN or any other keycode that would cause
-   userspace to try to change the backlight level, and use that as an
-   on-screen-display hint.
-
-3. IF AND ONLY IF X.org drivers find a way to block the firmware from
-   automatically changing the brightness, enable the hotkeys and map
-   them to KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN, and feed that to
-   something that calls xbacklight.  thinkpad-acpi will not be able to
-   change brightness in that case either, so you should disable its
-   backlight interface.
-
-For Lenovo models *with* ACPI backlight control:
-
-1. Load up ACPI video and use that.  ACPI video will report ACPI
-   events for brightness change keys.  Do not mess with thinkpad-acpi
-   defaults in this case.  thinkpad-acpi should not have anything to do
-   with backlight events in a scenario where ACPI video is loaded:
-   brightness hotkeys must be disabled, and the backlight interface is
-   to be kept disabled as well.  This is the default mode of operation.
-
-2. Do *NOT* load up ACPI video, enable the hotkeys in thinkpad-acpi,
-   and map them to KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN.  Process
-   these keys on userspace somehow (e.g. by calling xbacklight).
-   The driver will do this automatically if it detects that ACPI video
-   has been disabled.
+The driver will issue KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN events
+automatically for the cases were userspace has to do something to
+implement brightness changes.  When you override these events, you will
+either fail to handle properly the ThinkPads that require explicit
+action to change backlight brightness, or the ThinkPads that require
+that no action be taken to work properly.
 
 
 Bluetooth
@@ -1121,25 +1092,61 @@ WARNING:
     its level up and down at every change.
 
 
-Volume control -- /proc/acpi/ibm/volume
----------------------------------------
+Volume control
+--------------
+
+procfs: /proc/acpi/ibm/volume
+ALSA: "ThinkPad Console Audio Control", default ID: "ThinkPadEC"
+
+NOTE: by default, the volume control interface operates in read-only
+mode, as it is supposed to be used for on-screen-display purposes.
+The read/write mode can be enabled through the use of the
+"volume_control=1" module parameter.
 
-This feature allows volume control on ThinkPad models which don't have
-a hardware volume knob. The available commands are:
+NOTE: distros are urged to not enable volume_control by default, this
+should be done by the local admin only.  The ThinkPad UI is for the
+console audio control to be done through the volume keys only, and for
+the desktop environment to just provide on-screen-display feedback.
+Software volume control should be done only in the main AC97/HDA
+mixer.
+
+This feature allows volume control on ThinkPad models with a digital
+volume knob (when available, not all models have it), as well as
+mute/unmute control.  The available commands are:
 
         echo up   >/proc/acpi/ibm/volume
         echo down >/proc/acpi/ibm/volume
         echo mute >/proc/acpi/ibm/volume
+        echo unmute >/proc/acpi/ibm/volume
         echo 'level <level>' >/proc/acpi/ibm/volume
 
-The <level> number range is 0 to 15 although not all of them may be
+The <level> number range is 0 to 14 although not all of them may be
 distinct. The unmute the volume after the mute command, use either the
-up or down command (the level command will not unmute the volume).
+up or down command (the level command will not unmute the volume), or
+the unmute command.
+
 The current volume level and mute state is shown in the file.
 
-The ALSA mixer interface to this feature is still missing, but patches
-to add it exist.  That problem should be addressed in the not so
-distant future.
+You can use the volume_capabilities parameter to tell the driver
+whether your thinkpad has volume control or mute-only control:
+volume_capabilities=1 for mixers with mute and volume control,
+volume_capabilities=2 for mixers with only mute control.
+
+If the driver misdetects the capabilities for your ThinkPad model,
+please report this to ibm-acpi-devel@lists.sourceforge.net, so that we
+can update the driver.
+
+There are two strategies for volume control.  To select which one
+should be used, use the volume_mode module parameter: volume_mode=1
+selects EC mode, and volume_mode=3 selects EC mode with NVRAM backing
+(so that volume/mute changes are remembered across shutdown/reboot).
+
+The driver will operate in volume_mode=3 by default. If that does not
+work well on your ThinkPad model, please report this to
+ibm-acpi-devel@lists.sourceforge.net.
+
+The driver supports the standard ALSA module parameters.  If the ALSA
+mixer is disabled, the driver will disable all volume functionality.
 
 
 Fan control and monitoring: fan speed, fan enable/disable
@@ -1405,6 +1412,7 @@ to enable more than one output class, just add their values.
         0x0008                  HKEY event interface, hotkeys
         0x0010                  Fan control
         0x0020                  Backlight brightness
+        0x0040                  Audio mixer/volume control
 
 There is also a kernel build option to enable more debugging
 information, which may be necessary to debug driver problems.
@@ -1465,3 +1473,9 @@ Sysfs interface changelog:
                 and it is always able to disable hot keys.  Very old
                 thinkpads are properly supported.  hotkey_bios_mask
                 is deprecated and marked for removal.
+
+0x020600:       Marker for backlight change event support.
+
+0x020700:       Support for mute-only mixers.
+                Volume control in read-only mode by default.
+                Marker for ALSA mixer support.
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index a87dc277a5ca..cb3d15bc1aeb 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -206,6 +206,7 @@ passive
         passive trip point for the zone. Activation is done by polling with
         an interval of 1 second.
         Unit: millidegrees Celsius
+        Valid values: 0 (disabled) or greater than 1000
         RW, Optional
 
 *****************************
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 59cdfa4686b2..2e837f5080fe 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -48,7 +48,7 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
          * P4, Core and beyond CPUs
          */
         if (c->x86_vendor == X86_VENDOR_INTEL &&
-            (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 14)))
+            (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 0x0f)))
                         flags->bm_control = 0;
 }
 EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 0d2cdb86158b..97991ac6f5fc 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -100,7 +100,8 @@ static void round_robin_cpu(unsigned int tsk_index)
         struct cpumask *pad_busy_cpus = to_cpumask(pad_busy_cpus_bits);
         cpumask_var_t tmp;
         int cpu;
-        unsigned long min_weight = -1, preferred_cpu;
+        unsigned long min_weight = -1;
+        unsigned long uninitialized_var(preferred_cpu);
 
         if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
                 return;
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index ab83919dda61..61edb156e8d0 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -296,6 +296,11 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data,
                         acpi_status validate_status,
                         union acpi_operand_object **return_object_ptr);
 
+void
+acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
+                             u8 package_type,
+                             union acpi_operand_object *obj_desc);
+
 /*
  * nssearch - Namespace searching and entry
  */
@@ -354,9 +359,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
                          const char *internal_name,
                          u32 * converted_name_length, char **converted_name);
 
-struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle);
-
-acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node);
+struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 
 void acpi_ns_terminate(void);
 
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index b39d682a2140..64062b1be3ee 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -180,7 +180,11 @@ struct acpi_object_method {
         u8 sync_level;
         union acpi_operand_object *mutex;
         u8 *aml_start;
-        ACPI_INTERNAL_METHOD implementation;
+        union {
+                ACPI_INTERNAL_METHOD implementation;
+                union acpi_operand_object *handler;
+        } extra;
+
         u32 aml_length;
         u8 thread_count;
         acpi_owner_id owner_id;
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 567a4899a018..e786f9fd767f 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -414,7 +414,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
         /* Invoke an internal method if necessary */
 
         if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
-                status = obj_desc->method.implementation(next_walk_state);
+                status = obj_desc->method.extra.implementation(next_walk_state);
                 if (status == AE_OK) {
                         status = AE_CTRL_TERMINATE;
                 }
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 10fc78517843..b40513dd6a6a 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -212,18 +212,19 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                 case ACPI_TYPE_BUFFER:
 
                         /*
-                         * These types we will allow, but we will change the type. This
-                         * enables some existing code of the form:
+                         * These types we will allow, but we will change the type.
+                         * This enables some existing code of the form:
                          *
                          *  Name (DEB, 0)
                          *  Scope (DEB) { ... }
                          *
-                         * Note: silently change the type here. On the second pass, we will report
-                         * a warning
+                         * Note: silently change the type here. On the second pass,
+                         * we will report a warning
                          */
                         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                                          "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
-                                          path,
+                                          "Type override - [%4.4s] had invalid type (%s) "
+                                          "for Scope operator, changed to type ANY\n",
+                                          acpi_ut_get_node_name(node),
                                           acpi_ut_get_type_name(node->type)));
 
                         node->type = ACPI_TYPE_ANY;
@@ -235,8 +236,10 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                         /* All other types are an error */
 
                         ACPI_ERROR((AE_INFO,
-                                    "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
-                                    acpi_ut_get_type_name(node->type), path));
+                                    "Invalid type (%s) for target of "
+                                    "Scope operator [%4.4s] (Cannot override)",
+                                    acpi_ut_get_type_name(node->type),
+                                    acpi_ut_get_node_name(node)));
 
                         return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
                 }
@@ -697,15 +700,16 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                 case ACPI_TYPE_BUFFER:
 
                         /*
-                         * These types we will allow, but we will change the type. This
-                         * enables some existing code of the form:
+                         * These types we will allow, but we will change the type.
+                         * This enables some existing code of the form:
                          *
                          *  Name (DEB, 0)
                          *  Scope (DEB) { ... }
                          */
                         ACPI_WARNING((AE_INFO,
-                                      "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
-                                      buffer_ptr,
+                                      "Type override - [%4.4s] had invalid type (%s) "
+                                      "for Scope operator, changed to type ANY\n",
+                                      acpi_ut_get_node_name(node),
                                       acpi_ut_get_type_name(node->type)));
 
                         node->type = ACPI_TYPE_ANY;
@@ -717,9 +721,10 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                         /* All other types are an error */
 
                         ACPI_ERROR((AE_INFO,
-                                    "Invalid type (%s) for target of Scope operator [%4.4s]",
+                                    "Invalid type (%s) for target of "
+                                    "Scope operator [%4.4s] (Cannot override)",
                                     acpi_ut_get_type_name(node->type),
-                                    buffer_ptr));
+                                    acpi_ut_get_node_name(node)));
 
                         return (AE_AML_OPERAND_TYPE);
                 }
@@ -1047,9 +1052,22 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                         }
 
                         /*
-                         * If we are executing a method, initialize the region
+                         * The op_region is not fully parsed at this time. The only valid
+                         * argument is the space_id. (We must save the address of the
+                         * AML of the address and length operands)
+                         *
+                         * If we have a valid region, initialize it. The namespace is
+                         * unlocked at this point.
+                         *
+                         * Need to unlock interpreter if it is locked (if we are running
+                         * a control method), in order to allow _REG methods to be run
+                         * during acpi_ev_initialize_region.
                          */
                         if (walk_state->method_node) {
+                                /*
+                                 * Executing a method: initialize the region and unlock
+                                 * the interpreter
+                                 */
                                 status =
                                     acpi_ex_create_region(op->named.data,
                                                           op->named.length,
@@ -1058,21 +1076,17 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                                 if (ACPI_FAILURE(status)) {
                                         return (status);
                                 }
-                        }
 
-                        /*
-                         * The op_region is not fully parsed at this time. Only valid
-                         * argument is the space_id. (We must save the address of the
-                         * AML of the address and length operands)
-                         */
+                                acpi_ex_exit_interpreter();
+                        }
 
-                        /*
-                         * If we have a valid region, initialize it
-                         * Namespace is NOT locked at this point.
-                         */
                         status =
                             acpi_ev_initialize_region
                             (acpi_ns_get_attached_object(node), FALSE);
+                        if (walk_state->method_node) {
+                                acpi_ex_enter_interpreter();
+                        }
+
                         if (ACPI_FAILURE(status)) {
                                 /*
                                  *  If AE_NOT_EXIST is returned, it is not fatal
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 0bc807c33a56..5336d911fbf0 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -718,7 +718,7 @@ acpi_ev_install_handler(acpi_handle obj_handle,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         if (!node) {
                 return (AE_BAD_PARAMETER);
         }
@@ -1087,7 +1087,7 @@ acpi_ev_reg_run(acpi_handle obj_handle,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         if (!node) {
                 return (AE_BAD_PARAMETER);
         }
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index cf29c4953028..ff168052a332 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -575,6 +575,21 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
                                 handler_obj = obj_desc->thermal_zone.handler;
                                 break;
 
+                        case ACPI_TYPE_METHOD:
+                                /*
+                                 * If we are executing module level code, the original
+                                 * Node's object was replaced by this Method object and we
+                                 * saved the handler in the method object.
+                                 *
+                                 * See acpi_ns_exec_module_code
+                                 */
+                                if (obj_desc->method.
+                                    flags & AOPOBJ_MODULE_LEVEL) {
+                                        handler_obj =
+                                            obj_desc->method.extra.handler;
+                                }
+                                break;
+
                         default:
                                 /* Ignore other objects */
                                 break;
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 10b8543dd466..2fe0809d4eb2 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -259,7 +259,7 @@ acpi_install_notify_handler(acpi_handle device,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(device);
+        node = acpi_ns_validate_handle(device);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -425,7 +425,7 @@ acpi_remove_notify_handler(acpi_handle device,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(device);
+        node = acpi_ns_validate_handle(device);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 4721f58fe42c..eed7a38d25f2 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -610,7 +610,7 @@ acpi_install_gpe_block(acpi_handle gpe_device,
                 return (status);
         }
 
-        node = acpi_ns_map_handle_to_node(gpe_device);
+        node = acpi_ns_validate_handle(gpe_device);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -698,7 +698,7 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
                 return (status);
         }
 
-        node = acpi_ns_map_handle_to_node(gpe_device);
+        node = acpi_ns_validate_handle(gpe_device);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 7c3d2d356ffb..c98aa7c2d67c 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -89,7 +89,7 @@ acpi_install_address_space_handler(acpi_handle device,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(device);
+        node = acpi_ns_validate_handle(device);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -155,7 +155,7 @@ acpi_remove_address_space_handler(acpi_handle device,
 
         /* Convert and validate the device handle */
 
-        node = acpi_ns_map_handle_to_node(device);
+        node = acpi_ns_validate_handle(device);
         if (!node ||
             ((node->type != ACPI_TYPE_DEVICE) &&
              (node->type != ACPI_TYPE_PROCESSOR) &&
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index 2f0114202b05..3c456bd575d0 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -375,6 +375,15 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
                 return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
         }
 
+        /* Must have a valid thread ID */
+
+        if (!walk_state->thread) {
+                ACPI_ERROR((AE_INFO,
+                            "Cannot release Mutex [%4.4s], null thread info",
+                            acpi_ut_get_node_name(obj_desc->mutex.node)));
+                return_ACPI_STATUS(AE_AML_INTERNAL);
+        }
+
         /*
          * The Mutex is owned, but this thread must be the owner.
          * Special case for Global Lock, any thread can release
@@ -392,15 +401,6 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
                 return_ACPI_STATUS(AE_AML_NOT_OWNER);
         }
 
-        /* Must have a valid thread ID */
-
-        if (!walk_state->thread) {
-                ACPI_ERROR((AE_INFO,
-                            "Cannot release Mutex [%4.4s], null thread info",
-                            acpi_ut_get_node_name(obj_desc->mutex.node)));
-                return_ACPI_STATUS(AE_AML_INTERNAL);
-        }
-
         /*
          * The sync level of the mutex must be equal to the current sync level. In
          * other words, the current level means that at least one mutex at that
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index 9c3cdbe2d82a..d622ba770000 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -165,7 +165,7 @@ acpi_status acpi_ns_root_initialize(void)
 
                                 obj_desc->method.method_flags =
                                     AML_METHOD_INTERNAL_ONLY;
-                                obj_desc->method.implementation =
+                                obj_desc->method.extra.implementation =
                                     acpi_ut_osi_implementation;
 #endif
                                 break;
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 2deb986861ca..e37836e27e29 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -180,7 +180,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
                 return (AE_OK);
         }
 
-        this_node = acpi_ns_map_handle_to_node(obj_handle);
+        this_node = acpi_ns_validate_handle(obj_handle);
         if (!this_node) {
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
                                   obj_handle));
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index f771e978c403..af9fe9103734 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -381,6 +381,18 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj,
                                     method_obj->method.next_object);
         type = acpi_ns_get_type(parent_node);
 
+        /*
+         * Get the region handler and save it in the method object. We may need
+         * this if an operation region declaration causes a _REG method to be run.
+         *
+         * We can't do this in acpi_ps_link_module_code because
+         * acpi_gbl_root_node->Object is NULL at PASS1.
+         */
+        if ((type == ACPI_TYPE_DEVICE) && parent_node->object) {
+                method_obj->method.extra.handler =
+                    parent_node->object->device.handler;
+        }
+
         /* Must clear next_object (acpi_ns_attach_object needs the field) */
 
         method_obj->method.next_object = NULL;
@@ -415,6 +427,12 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj,
         ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n",
                           method_obj->method.aml_start));
 
+        /* Delete a possible implicit return value (in slack mode) */
+
+        if (info->return_object) {
+                acpi_ut_remove_reference(info->return_object);
+        }
+
         /* Detach the temporary method object */
 
         acpi_ns_detach_object(parent_node);
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index af8e6bcee07e..8f9a4875ce26 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -232,7 +232,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
 
         ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
 
-        node = acpi_ns_map_handle_to_node(target_handle);
+        node = acpi_ns_validate_handle(target_handle);
         if (!node) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index b05f42903c86..d34fa59548f7 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -216,29 +216,38 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
         data->pathname = pathname;
 
         /*
-         * Check that the type of the return object is what is expected for
-         * this predefined name
+         * Check that the type of the main return object is what is expected
+         * for this predefined name
          */
         status = acpi_ns_check_object_type(data, return_object_ptr,
                                            predefined->info.expected_btypes,
                                            ACPI_NOT_PACKAGE_ELEMENT);
         if (ACPI_FAILURE(status)) {
-                goto check_validation_status;
+                goto exit;
         }
 
-        /* For returned Package objects, check the type of all sub-objects */
-
-        if (return_object->common.type == ACPI_TYPE_PACKAGE) {
+        /*
+         * For returned Package objects, check the type of all sub-objects.
+         * Note: Package may have been newly created by call above.
+         */
+        if ((*return_object_ptr)->common.type == ACPI_TYPE_PACKAGE) {
                 status = acpi_ns_check_package(data, return_object_ptr);
+                if (ACPI_FAILURE(status)) {
+                        goto exit;
+                }
         }
 
         /*
-         * Perform additional, more complicated repairs on a per-name
-         * basis.
+         * The return object was OK, or it was successfully repaired above.
+         * Now make some additional checks such as verifying that package
+         * objects are sorted correctly (if required) or buffer objects have
+         * the correct data width (bytes vs. dwords). These repairs are
+         * performed on a per-name basis, i.e., the code is specific to
+         * particular predefined names.
          */
         status = acpi_ns_complex_repairs(data, node, status, return_object_ptr);
 
-check_validation_status:
+exit:
         /*
          * If the object validation failed or if we successfully repaired one
          * or more objects, mark the parent node to suppress further warning
@@ -427,6 +436,13 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
                           data->pathname, package->ret_info.type,
                           return_object->package.count));
 
+        /*
+         * For variable-length Packages, we can safely remove all embedded
+         * and trailing NULL package elements
+         */
+        acpi_ns_remove_null_elements(data, package->ret_info.type,
+                                     return_object);
+
         /* Extract package count and elements array */
 
         elements = return_object->package.elements;
@@ -461,11 +477,11 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
                 if (count < expected_count) {
                         goto package_too_small;
                 } else if (count > expected_count) {
-                        ACPI_WARN_PREDEFINED((AE_INFO, data->pathname,
-                                              data->node_flags,
-                                              "Return Package is larger than needed - "
-                                              "found %u, expected %u", count,
-                                              expected_count));
+                        ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                          "%s: Return Package is larger than needed - "
+                                          "found %u, expected %u\n",
+                                          data->pathname, count,
+                                          expected_count));
                 }
 
                 /* Validate all elements of the returned package */
@@ -680,53 +696,18 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data,
         union acpi_operand_object *sub_package;
         union acpi_operand_object **sub_elements;
         acpi_status status;
-        u8 non_trailing_null = FALSE;
         u32 expected_count;
         u32 i;
         u32 j;
 
-        /* Validate each sub-Package in the parent Package */
-
+        /*
+         * Validate each sub-Package in the parent Package
+         *
+         * NOTE: assumes list of sub-packages contains no NULL elements.
+         * Any NULL elements should have been removed by earlier call
+         * to acpi_ns_remove_null_elements.
+         */
         for (i = 0; i < count; i++) {
-                /*
-                 * Handling for NULL package elements. For now, we will simply allow
-                 * a parent package with trailing NULL elements. This can happen if
-                 * the package was defined to be longer than the initializer list.
-                 * This is legal as per the ACPI specification. It is often used
-                 * to allow for dynamic initialization of a Package.
-                 *
-                 * A future enhancement may be to simply truncate the package to
-                 * remove the trailing NULL elements.
-                 */
-                if (!(*elements)) {
-                        if (!non_trailing_null) {
-
-                                /* Ensure the remaining elements are all NULL */
-
-                                for (j = 1; j < (count - i + 1); j++) {
-                                        if (elements[j]) {
-                                                non_trailing_null = TRUE;
-                                        }
-                                }
-
-                                if (!non_trailing_null) {
-
-                                        /* Ignore the trailing NULL elements */
-
-                                        return (AE_OK);
-                                }
-                        }
-
-                        /* There are trailing non-null elements, issue warning */
-
-                        ACPI_WARN_PREDEFINED((AE_INFO, data->pathname,
-                                              data->node_flags,
-                                              "Found NULL element at package index %u",
-                                              i));
-                        elements++;
-                        continue;
-                }
-
                 sub_package = *elements;
                 sub_elements = sub_package->package.elements;
 
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index d563f1a564a7..4fd1bdb056b2 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -45,13 +45,52 @@
 #include "accommon.h"
 #include "acnamesp.h"
 #include "acinterp.h"
-#include "acpredef.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsrepair")
 
 /*******************************************************************************
  *
+ * This module attempts to repair or convert objects returned by the
+ * predefined methods to an object type that is expected, as per the ACPI
+ * specification. The need for this code is dictated by the many machines that
+ * return incorrect types for the standard predefined methods. Performing these
+ * conversions here, in one place, eliminates the need for individual ACPI
+ * device drivers to do the same. Note: Most of these conversions are different
+ * than the internal object conversion routines used for implicit object
+ * conversion.
+ *
+ * The following conversions can be performed as necessary:
+ *
+ * Integer -> String
+ * Integer -> Buffer
+ * String  -> Integer
+ * String  -> Buffer
+ * Buffer  -> Integer
+ * Buffer  -> String
+ * Buffer  -> Package of Integers
+ * Package -> Package of one Package
+ *
+ ******************************************************************************/
+/* Local prototypes */
+static acpi_status
+acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
+                           union acpi_operand_object **return_object);
+
+static acpi_status
+acpi_ns_convert_to_string(union acpi_operand_object *original_object,
+                          union acpi_operand_object **return_object);
+
+static acpi_status
+acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
+                          union acpi_operand_object **return_object);
+
+static acpi_status
+acpi_ns_convert_to_package(union acpi_operand_object *original_object,
+                           union acpi_operand_object **return_object);
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ns_repair_object
  *
  * PARAMETERS:  Data                - Pointer to validation data structure
@@ -68,6 +107,7 @@ ACPI_MODULE_NAME("nsrepair")
  *              not expected.
  *
  ******************************************************************************/
+
 acpi_status
 acpi_ns_repair_object(struct acpi_predefined_data *data,
                       u32 expected_btypes,
@@ -76,32 +116,206 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
 {
         union acpi_operand_object *return_object = *return_object_ptr;
         union acpi_operand_object *new_object;
-        acpi_size length;
         acpi_status status;
 
+        ACPI_FUNCTION_NAME(ns_repair_object);
+
         /*
          * At this point, we know that the type of the returned object was not
          * one of the expected types for this predefined name. Attempt to
-         * repair the object. Only a limited number of repairs are possible.
+         * repair the object by converting it to one of the expected object
+         * types for this predefined name.
          */
-        switch (return_object->common.type) {
+        if (expected_btypes & ACPI_RTYPE_INTEGER) {
+                status = acpi_ns_convert_to_integer(return_object, &new_object);
+                if (ACPI_SUCCESS(status)) {
+                        goto object_repaired;
+                }
+        }
+        if (expected_btypes & ACPI_RTYPE_STRING) {
+                status = acpi_ns_convert_to_string(return_object, &new_object);
+                if (ACPI_SUCCESS(status)) {
+                        goto object_repaired;
+                }
+        }
+        if (expected_btypes & ACPI_RTYPE_BUFFER) {
+                status = acpi_ns_convert_to_buffer(return_object, &new_object);
+                if (ACPI_SUCCESS(status)) {
+                        goto object_repaired;
+                }
+        }
+        if (expected_btypes & ACPI_RTYPE_PACKAGE) {
+                status = acpi_ns_convert_to_package(return_object, &new_object);
+                if (ACPI_SUCCESS(status)) {
+                        goto object_repaired;
+                }
+        }
+
+        /* We cannot repair this object */
+
+        return (AE_AML_OPERAND_TYPE);
+
+      object_repaired:
+
+        /* Object was successfully repaired */
+
+        /*
+         * If the original object is a package element, we need to:
+         * 1. Set the reference count of the new object to match the
+         *    reference count of the old object.
+         * 2. Decrement the reference count of the original object.
+         */
+        if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
+                new_object->common.reference_count =
+                    return_object->common.reference_count;
+
+                if (return_object->common.reference_count > 1) {
+                        return_object->common.reference_count--;
+                }
+
+                ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                  "%s: Converted %s to expected %s at index %u\n",
+                                  data->pathname,
+                                  acpi_ut_get_object_type_name(return_object),
+                                  acpi_ut_get_object_type_name(new_object),
+                                  package_index));
+        } else {
+                ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                  "%s: Converted %s to expected %s\n",
+                                  data->pathname,
+                                  acpi_ut_get_object_type_name(return_object),
+                                  acpi_ut_get_object_type_name(new_object)));
+        }
+
+        /* Delete old object, install the new return object */
+
+        acpi_ut_remove_reference(return_object);
+        *return_object_ptr = new_object;
+        data->flags |= ACPI_OBJECT_REPAIRED;
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_to_integer
+ *
+ * PARAMETERS:  original_object     - Object to be converted
+ *              return_object       - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
+                           union acpi_operand_object **return_object)
+{
+        union acpi_operand_object *new_object;
+        acpi_status status;
+        u64 value = 0;
+        u32 i;
+
+        switch (original_object->common.type) {
+        case ACPI_TYPE_STRING:
+
+                /* String-to-Integer conversion */
+
+                status = acpi_ut_strtoul64(original_object->string.pointer,
+                                           ACPI_ANY_BASE, &value);
+                if (ACPI_FAILURE(status)) {
+                        return (status);
+                }
+                break;
+
         case ACPI_TYPE_BUFFER:
 
-                /* Does the method/object legally return a string? */
+                /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
 
-                if (!(expected_btypes & ACPI_RTYPE_STRING)) {
+                if (original_object->buffer.length > 8) {
                         return (AE_AML_OPERAND_TYPE);
                 }
 
+                /* Extract each buffer byte to create the integer */
+
+                for (i = 0; i < original_object->buffer.length; i++) {
+                        value |=
+                            ((u64) original_object->buffer.
+                             pointer[i] << (i * 8));
+                }
+                break;
+
+        default:
+                return (AE_AML_OPERAND_TYPE);
+        }
+
+        new_object = acpi_ut_create_integer_object(value);
+        if (!new_object) {
+                return (AE_NO_MEMORY);
+        }
+
+        *return_object = new_object;
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_to_string
+ *
+ * PARAMETERS:  original_object     - Object to be converted
+ *              return_object       - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_convert_to_string(union acpi_operand_object *original_object,
+                          union acpi_operand_object **return_object)
+{
+        union acpi_operand_object *new_object;
+        acpi_size length;
+        acpi_status status;
+
+        switch (original_object->common.type) {
+        case ACPI_TYPE_INTEGER:
+                /*
+                 * Integer-to-String conversion. Commonly, convert
+                 * an integer of value 0 to a NULL string. The last element of
+                 * _BIF and _BIX packages occasionally need this fix.
+                 */
+                if (original_object->integer.value == 0) {
+
+                        /* Allocate a new NULL string object */
+
+                        new_object = acpi_ut_create_string_object(0);
+                        if (!new_object) {
+                                return (AE_NO_MEMORY);
+                        }
+                } else {
+                        status =
+                            acpi_ex_convert_to_string(original_object,
+                                                      &new_object,
+                                                      ACPI_IMPLICIT_CONVERT_HEX);
+                        if (ACPI_FAILURE(status)) {
+                                return (status);
+                        }
+                }
+                break;
+
+        case ACPI_TYPE_BUFFER:
                 /*
-                 * Have a Buffer, expected a String, convert. Use a to_string
+                 * Buffer-to-String conversion. Use a to_string
                  * conversion, no transform performed on the buffer data. The best
                  * example of this is the _BIF method, where the string data from
                  * the battery is often (incorrectly) returned as buffer object(s).
                  */
                 length = 0;
-                while ((length < return_object->buffer.length) &&
-                       (return_object->buffer.pointer[length])) {
+                while ((length < original_object->buffer.length) &&
+                       (original_object->buffer.pointer[length])) {
                         length++;
                 }
 
@@ -117,94 +331,176 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
                  * terminated at Length+1.
                  */
                 ACPI_MEMCPY(new_object->string.pointer,
-                            return_object->buffer.pointer, length);
+                            original_object->buffer.pointer, length);
                 break;
 
+        default:
+                return (AE_AML_OPERAND_TYPE);
+        }
+
+        *return_object = new_object;
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_to_buffer
+ *
+ * PARAMETERS:  original_object     - Object to be converted
+ *              return_object       - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
+                          union acpi_operand_object **return_object)
+{
+        union acpi_operand_object *new_object;
+        acpi_status status;
+        union acpi_operand_object **elements;
+        u32 *dword_buffer;
+        u32 count;
+        u32 i;
+
+        switch (original_object->common.type) {
         case ACPI_TYPE_INTEGER:
+                /*
+                 * Integer-to-Buffer conversion.
+                 * Convert the Integer to a packed-byte buffer. _MAT and other
+                 * objects need this sometimes, if a read has been performed on a
+                 * Field object that is less than or equal to the global integer
+                 * size (32 or 64 bits).
+                 */
+                status =
+                    acpi_ex_convert_to_buffer(original_object, &new_object);
+                if (ACPI_FAILURE(status)) {
+                        return (status);
+                }
+                break;
 
-                /* 1) Does the method/object legally return a buffer? */
+        case ACPI_TYPE_STRING:
 
-                if (expected_btypes & ACPI_RTYPE_BUFFER) {
-                        /*
-                         * Convert the Integer to a packed-byte buffer. _MAT needs
-                         * this sometimes, if a read has been performed on a Field
-                         * object that is less than or equal to the global integer
-                         * size (32 or 64 bits).
-                         */
-                        status =
-                            acpi_ex_convert_to_buffer(return_object,
-                                                      &new_object);
-                        if (ACPI_FAILURE(status)) {
-                                return (status);
-                        }
+                /* String-to-Buffer conversion. Simple data copy */
+
+                new_object =
+                    acpi_ut_create_buffer_object(original_object->string.
+                                                 length);
+                if (!new_object) {
+                        return (AE_NO_MEMORY);
                 }
 
-                /* 2) Does the method/object legally return a string? */
+                ACPI_MEMCPY(new_object->buffer.pointer,
+                            original_object->string.pointer,
+                            original_object->string.length);
+                break;
+
+        case ACPI_TYPE_PACKAGE:
+                /*
+                 * This case is often seen for predefined names that must return a
+                 * Buffer object with multiple DWORD integers within. For example,
+                 * _FDE and _GTM. The Package can be converted to a Buffer.
+                 */
+
+                /* All elements of the Package must be integers */
 
-                else if (expected_btypes & ACPI_RTYPE_STRING) {
-                        /*
-                         * The only supported Integer-to-String conversion is to convert
-                         * an integer of value 0 to a NULL string. The last element of
-                         * _BIF and _BIX packages occasionally need this fix.
-                         */
-                        if (return_object->integer.value != 0) {
+                elements = original_object->package.elements;
+                count = original_object->package.count;
+
+                for (i = 0; i < count; i++) {
+                        if ((!*elements) ||
+                            ((*elements)->common.type != ACPI_TYPE_INTEGER)) {
                                 return (AE_AML_OPERAND_TYPE);
                         }
+                        elements++;
+                }
 
-                        /* Allocate a new NULL string object */
+                /* Create the new buffer object to replace the Package */
 
-                        new_object = acpi_ut_create_string_object(0);
-                        if (!new_object) {
-                                return (AE_NO_MEMORY);
-                        }
-                } else {
-                        return (AE_AML_OPERAND_TYPE);
+                new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count));
+                if (!new_object) {
+                        return (AE_NO_MEMORY);
                 }
-                break;
 
-        default:
+                /* Copy the package elements (integers) to the buffer as DWORDs */
 
-                /* We cannot repair this object */
+                elements = original_object->package.elements;
+                dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer);
+
+                for (i = 0; i < count; i++) {
+                        *dword_buffer = (u32) (*elements)->integer.value;
+                        dword_buffer++;
+                        elements++;
+                }
+                break;
 
+        default:
                 return (AE_AML_OPERAND_TYPE);
         }
 
-        /* Object was successfully repaired */
+        *return_object = new_object;
+        return (AE_OK);
+}
 
-        /*
-         * If the original object is a package element, we need to:
-         * 1. Set the reference count of the new object to match the
-         *    reference count of the old object.
-         * 2. Decrement the reference count of the original object.
-         */
-        if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
-                new_object->common.reference_count =
-                    return_object->common.reference_count;
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_to_package
+ *
+ * PARAMETERS:  original_object     - Object to be converted
+ *              return_object       - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Buffer object to a Package. Each byte of
+ *              the buffer is converted to a single integer package element.
+ *
+ ******************************************************************************/
 
-                if (return_object->common.reference_count > 1) {
-                        return_object->common.reference_count--;
+static acpi_status
+acpi_ns_convert_to_package(union acpi_operand_object *original_object,
+                           union acpi_operand_object **return_object)
+{
+        union acpi_operand_object *new_object;
+        union acpi_operand_object **elements;
+        u32 length;
+        u8 *buffer;
+
+        switch (original_object->common.type) {
+        case ACPI_TYPE_BUFFER:
+
+                /* Buffer-to-Package conversion */
+
+                length = original_object->buffer.length;
+                new_object = acpi_ut_create_package_object(length);
+                if (!new_object) {
+                        return (AE_NO_MEMORY);
                 }
 
-                ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-                                      "Converted %s to expected %s at index %u",
-                                      acpi_ut_get_object_type_name
-                                      (return_object),
-                                      acpi_ut_get_object_type_name(new_object),
-                                      package_index));
-        } else {
-                ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-                                      "Converted %s to expected %s",
-                                      acpi_ut_get_object_type_name
-                                      (return_object),
-                                      acpi_ut_get_object_type_name
-                                      (new_object)));
-        }
+                /* Convert each buffer byte to an integer package element */
 
-        /* Delete old object, install the new return object */
+                elements = new_object->package.elements;
+                buffer = original_object->buffer.pointer;
 
-        acpi_ut_remove_reference(return_object);
-        *return_object_ptr = new_object;
-        data->flags |= ACPI_OBJECT_REPAIRED;
+                while (length--) {
+                        *elements =
+                            acpi_ut_create_integer_object((u64) *buffer);
+                        if (!*elements) {
+                                acpi_ut_remove_reference(new_object);
+                                return (AE_NO_MEMORY);
+                        }
+                        elements++;
+                        buffer++;
+                }
+                break;
+
+        default:
+                return (AE_AML_OPERAND_TYPE);
+        }
+
+        *return_object = new_object;
         return (AE_OK);
 }
 
@@ -238,6 +534,8 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data,
 {
         union acpi_operand_object *pkg_obj_desc;
 
+        ACPI_FUNCTION_NAME(ns_repair_package_list);
+
         /*
          * Create the new outer package and populate it. The new package will
          * have a single element, the lone subpackage.
@@ -254,8 +552,9 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data,
         *obj_desc_ptr = pkg_obj_desc;
         data->flags |= ACPI_OBJECT_REPAIRED;
 
-        ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-                              "Repaired Incorrectly formed Package"));
+        ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                          "%s: Repaired incorrectly formed Package\n",
+                          data->pathname));
 
         return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index d07b68613818..f13691c1cca5 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -45,6 +45,7 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
+#include "acpredef.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsrepair2")
@@ -74,6 +75,10 @@ acpi_ns_repair_ALR(struct acpi_predefined_data *data,
                    union acpi_operand_object **return_object_ptr);
 
 static acpi_status
+acpi_ns_repair_FDE(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr);
+
+static acpi_status
 acpi_ns_repair_PSS(struct acpi_predefined_data *data,
                    union acpi_operand_object **return_object_ptr);
 
@@ -89,9 +94,6 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
                           u8 sort_direction, char *sort_key_name);
 
 static acpi_status
-acpi_ns_remove_null_elements(union acpi_operand_object *package);
-
-static acpi_status
 acpi_ns_sort_list(union acpi_operand_object **elements,
                   u32 count, u32 index, u8 sort_direction);
 
@@ -104,17 +106,27 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
  * This table contains the names of the predefined methods for which we can
  * perform more complex repairs.
  *
- * _ALR: Sort the list ascending by ambient_illuminance if necessary
- * _PSS: Sort the list descending by Power if necessary
- * _TSS: Sort the list descending by Power if necessary
+ * As necessary:
+ *
+ * _ALR: Sort the list ascending by ambient_illuminance
+ * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs
+ * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs
+ * _PSS: Sort the list descending by Power
+ * _TSS: Sort the list descending by Power
  */
 static const struct acpi_repair_info acpi_ns_repairable_names[] = {
         {"_ALR", acpi_ns_repair_ALR},
+        {"_FDE", acpi_ns_repair_FDE},
+        {"_GTM", acpi_ns_repair_FDE},   /* _GTM has same repair as _FDE */
         {"_PSS", acpi_ns_repair_PSS},
         {"_TSS", acpi_ns_repair_TSS},
         {{0, 0, 0, 0}, NULL}    /* Table terminator */
 };
 
+#define ACPI_FDE_FIELD_COUNT        5
+#define ACPI_FDE_BYTE_BUFFER_SIZE   5
+#define ACPI_FDE_DWORD_BUFFER_SIZE  (ACPI_FDE_FIELD_COUNT * sizeof (u32))
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_ns_complex_repairs
@@ -215,6 +227,94 @@ acpi_ns_repair_ALR(struct acpi_predefined_data *data,
 
 /******************************************************************************
  *
+ * FUNCTION:    acpi_ns_repair_FDE
+ *
+ * PARAMETERS:  Data                - Pointer to validation data structure
+ *              return_object_ptr   - Pointer to the object returned from the
+ *                                    evaluation of a method or object
+ *
+ * RETURN:      Status. AE_OK if object is OK or was repaired successfully
+ *
+ * DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return
+ *              value is a Buffer of 5 DWORDs. This function repairs a common
+ *              problem where the return value is a Buffer of BYTEs, not
+ *              DWORDs.
+ *
+ *****************************************************************************/
+
+static acpi_status
+acpi_ns_repair_FDE(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr)
+{
+        union acpi_operand_object *return_object = *return_object_ptr;
+        union acpi_operand_object *buffer_object;
+        u8 *byte_buffer;
+        u32 *dword_buffer;
+        u32 i;
+
+        ACPI_FUNCTION_NAME(ns_repair_FDE);
+
+        switch (return_object->common.type) {
+        case ACPI_TYPE_BUFFER:
+
+                /* This is the expected type. Length should be (at least) 5 DWORDs */
+
+                if (return_object->buffer.length >= ACPI_FDE_DWORD_BUFFER_SIZE) {
+                        return (AE_OK);
+                }
+
+                /* We can only repair if we have exactly 5 BYTEs */
+
+                if (return_object->buffer.length != ACPI_FDE_BYTE_BUFFER_SIZE) {
+                        ACPI_WARN_PREDEFINED((AE_INFO, data->pathname,
+                                              data->node_flags,
+                                              "Incorrect return buffer length %u, expected %u",
+                                              return_object->buffer.length,
+                                              ACPI_FDE_DWORD_BUFFER_SIZE));
+
+                        return (AE_AML_OPERAND_TYPE);
+                }
+
+                /* Create the new (larger) buffer object */
+
+                buffer_object =
+                    acpi_ut_create_buffer_object(ACPI_FDE_DWORD_BUFFER_SIZE);
+                if (!buffer_object) {
+                        return (AE_NO_MEMORY);
+                }
+
+                /* Expand each byte to a DWORD */
+
+                byte_buffer = return_object->buffer.pointer;
+                dword_buffer =
+                    ACPI_CAST_PTR(u32, buffer_object->buffer.pointer);
+
+                for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) {
+                        *dword_buffer = (u32) *byte_buffer;
+                        dword_buffer++;
+                        byte_buffer++;
+                }
+
+                ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                  "%s Expanded Byte Buffer to expected DWord Buffer\n",
+                                  data->pathname));
+                break;
+
+        default:
+                return (AE_AML_OPERAND_TYPE);
+        }
+
+        /* Delete the original return object, return the new buffer object */
+
+        acpi_ut_remove_reference(return_object);
+        *return_object_ptr = buffer_object;
+
+        data->flags |= ACPI_OBJECT_REPAIRED;
+        return (AE_OK);
+}
+
+/******************************************************************************
+ *
  * FUNCTION:    acpi_ns_repair_TSS
  *
  * PARAMETERS:  Data                - Pointer to validation data structure
@@ -345,6 +445,8 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
         u32 previous_value;
         acpi_status status;
 
+        ACPI_FUNCTION_NAME(ns_check_sorted_list);
+
         /* The top-level object must be a package */
 
         if (return_object->common.type != ACPI_TYPE_PACKAGE) {
@@ -352,24 +454,10 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
         }
 
         /*
-         * Detect any NULL package elements and remove them from the
-         * package.
-         *
-         * TBD: We may want to do this for all predefined names that
-         * return a variable-length package of packages.
+         * NOTE: assumes list of sub-packages contains no NULL elements.
+         * Any NULL elements should have been removed by earlier call
+         * to acpi_ns_remove_null_elements.
          */
-        status = acpi_ns_remove_null_elements(return_object);
-        if (status == AE_NULL_ENTRY) {
-                ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-                                      "NULL elements removed from package"));
-
-                /* Exit if package is now zero length */
-
-                if (!return_object->package.count) {
-                        return (AE_NULL_ENTRY);
-                }
-        }
-
         outer_elements = return_object->package.elements;
         outer_element_count = return_object->package.count;
         if (!outer_element_count) {
@@ -422,10 +510,9 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
 
                         data->flags |= ACPI_OBJECT_REPAIRED;
 
-                        ACPI_INFO_PREDEFINED((AE_INFO, data->pathname,
-                                              data->node_flags,
-                                              "Repaired unsorted list - now sorted by %s",
-                                              sort_key_name));
+                        ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                          "%s: Repaired unsorted list - now sorted by %s\n",
+                                          data->pathname, sort_key_name));
                         return (AE_OK);
                 }
 
@@ -440,36 +527,63 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data,
  *
  * FUNCTION:    acpi_ns_remove_null_elements
  *
- * PARAMETERS:  obj_desc            - A Package object
+ * PARAMETERS:  Data                - Pointer to validation data structure
+ *              package_type        - An acpi_return_package_types value
+ *              obj_desc            - A Package object
  *
- * RETURN:      Status. AE_NULL_ENTRY means that one or more elements were
- *              removed.
+ * RETURN:      None.
  *
- * DESCRIPTION: Remove all NULL package elements and update the package count.
+ * DESCRIPTION: Remove all NULL package elements from packages that contain
+ *              a variable number of sub-packages.
  *
  *****************************************************************************/
 
-static acpi_status
-acpi_ns_remove_null_elements(union acpi_operand_object *obj_desc)
+void
+acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
+                             u8 package_type,
+                             union acpi_operand_object *obj_desc)
 {
         union acpi_operand_object **source;
         union acpi_operand_object **dest;
-        acpi_status status = AE_OK;
         u32 count;
         u32 new_count;
         u32 i;
 
+        ACPI_FUNCTION_NAME(ns_remove_null_elements);
+
+        /*
+         * PTYPE1 packages contain no subpackages.
+         * PTYPE2 packages contain a variable number of sub-packages. We can
+         * safely remove all NULL elements from the PTYPE2 packages.
+         */
+        switch (package_type) {
+        case ACPI_PTYPE1_FIXED:
+        case ACPI_PTYPE1_VAR:
+        case ACPI_PTYPE1_OPTION:
+                return;
+
+        case ACPI_PTYPE2:
+        case ACPI_PTYPE2_COUNT:
+        case ACPI_PTYPE2_PKG_COUNT:
+        case ACPI_PTYPE2_FIXED:
+        case ACPI_PTYPE2_MIN:
+        case ACPI_PTYPE2_REV_FIXED:
+                break;
+
+        default:
+                return;
+        }
+
         count = obj_desc->package.count;
         new_count = count;
 
         source = obj_desc->package.elements;
         dest = source;
 
-        /* Examine all elements of the package object */
+        /* Examine all elements of the package object, remove nulls */
 
         for (i = 0; i < count; i++) {
                 if (!*source) {
-                        status = AE_NULL_ENTRY;
                         new_count--;
                 } else {
                         *dest = *source;
@@ -478,15 +592,18 @@ acpi_ns_remove_null_elements(union acpi_operand_object *obj_desc)
                 source++;
         }
 
-        if (status == AE_NULL_ENTRY) {
+        /* Update parent package if any null elements were removed */
+
+        if (new_count < count) {
+                ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                  "%s: Found and removed %u NULL elements\n",
+                                  data->pathname, (count - new_count)));
 
                 /* NULL terminate list and update the package count */
 
                 *dest = NULL;
                 obj_desc->package.count = new_count;
         }
-
-        return (status);
 }
 
 /******************************************************************************
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index ea55ab4f9849..47d91e668a1b 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -671,24 +671,25 @@ acpi_ns_externalize_name(u32 internal_name_length,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_map_handle_to_node
+ * FUNCTION:    acpi_ns_validate_handle
  *
- * PARAMETERS:  Handle          - Handle to be converted to an Node
+ * PARAMETERS:  Handle          - Handle to be validated and typecast to a
+ *                                namespace node.
  *
- * RETURN:      A Name table entry pointer
+ * RETURN:      A pointer to a namespace node
  *
- * DESCRIPTION: Convert a namespace handle to a real Node
+ * DESCRIPTION: Convert a namespace handle to a namespace node. Handles special
+ *              cases for the root node.
  *
- * Note: Real integer handles would allow for more verification
+ * NOTE: Real integer handles would allow for more verification
  *       and keep all pointers within this subsystem - however this introduces
- *       more (and perhaps unnecessary) overhead.
- *
- * The current implemenation is basically a placeholder until such time comes
- * that it is needed.
+ *       more overhead and has not been necessary to this point. Drivers
+ *       holding handles are typically notified before a node becomes invalid
+ *       due to a table unload.
  *
  ******************************************************************************/
 
-struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
+struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle)
 {
 
         ACPI_FUNCTION_ENTRY();
@@ -710,42 +711,6 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_convert_entry_to_handle
- *
- * PARAMETERS:  Node          - Node to be converted to a Handle
- *
- * RETURN:      A user handle
- *
- * DESCRIPTION: Convert a real Node to a namespace handle
- *
- ******************************************************************************/
-
-acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node)
-{
-
-        /*
-         * Simple implementation for now;
-         */
-        return ((acpi_handle) node);
-
-/* Example future implementation ---------------------
-
-        if (!Node)
-        {
-                return (NULL);
-        }
-
-        if (Node == acpi_gbl_root_node)
-        {
-                return (ACPI_ROOT_OBJECT);
-        }
-
-        return ((acpi_handle) Node);
-------------------------------------------------------*/
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ns_terminate
  *
  * PARAMETERS:  none
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index f2bd1da77001..f0c0892bc7e5 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -190,7 +190,7 @@ acpi_evaluate_object(acpi_handle handle,
 
         /* Convert and validate the device handle */
 
-        info->prefix_node = acpi_ns_map_handle_to_node(handle);
+        info->prefix_node = acpi_ns_validate_handle(handle);
         if (!info->prefix_node) {
                 status = AE_BAD_PARAMETER;
                 goto cleanup;
@@ -552,7 +552,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
                 return (status);
         }
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
         if (ACPI_FAILURE(status)) {
                 return (status);
@@ -729,7 +729,7 @@ acpi_attach_data(acpi_handle obj_handle,
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -775,7 +775,7 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -822,7 +822,7 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(obj_handle);
+        node = acpi_ns_validate_handle(obj_handle);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index ddc84af6336e..e611dd961b20 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -93,7 +93,7 @@ acpi_get_handle(acpi_handle parent,
         /* Convert a parent handle to a prefix node */
 
         if (parent) {
-                prefix_node = acpi_ns_map_handle_to_node(parent);
+                prefix_node = acpi_ns_validate_handle(parent);
                 if (!prefix_node) {
                         return (AE_BAD_PARAMETER);
                 }
@@ -114,7 +114,7 @@ acpi_get_handle(acpi_handle parent,
 
                 if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
                         *ret_handle =
-                            acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
+                            ACPI_CAST_PTR(acpi_handle, acpi_gbl_root_node);
                         return (AE_OK);
                 }
         } else if (!prefix_node) {
@@ -129,7 +129,7 @@ acpi_get_handle(acpi_handle parent,
         status =
             acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
         if (ACPI_SUCCESS(status)) {
-                *ret_handle = acpi_ns_convert_entry_to_handle(node);
+                *ret_handle = ACPI_CAST_PTR(acpi_handle, node);
         }
 
         return (status);
@@ -186,7 +186,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
                 return (status);
         }
 
-        node = acpi_ns_map_handle_to_node(handle);
+        node = acpi_ns_validate_handle(handle);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -291,7 +291,7 @@ acpi_get_object_info(acpi_handle handle,
                 goto cleanup;
         }
 
-        node = acpi_ns_map_handle_to_node(handle);
+        node = acpi_ns_validate_handle(handle);
         if (!node) {
                 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
                 return (AE_BAD_PARAMETER);
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 4071bad4458e..0cc6ba01a495 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -79,7 +79,7 @@ acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id)
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(handle);
+        node = acpi_ns_validate_handle(handle);
         if (!node) {
                 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
                 return (AE_BAD_PARAMETER);
@@ -132,7 +132,7 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(handle);
+        node = acpi_ns_validate_handle(handle);
         if (!node) {
                 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
                 return (AE_BAD_PARAMETER);
@@ -182,7 +182,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
 
         /* Convert and validate the handle */
 
-        node = acpi_ns_map_handle_to_node(handle);
+        node = acpi_ns_validate_handle(handle);
         if (!node) {
                 status = AE_BAD_PARAMETER;
                 goto unlock_and_exit;
@@ -191,7 +191,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
         /* Get the parent entry */
 
         parent_node = acpi_ns_get_parent_node(node);
-        *ret_handle = acpi_ns_convert_entry_to_handle(parent_node);
+        *ret_handle = ACPI_CAST_PTR(acpi_handle, parent_node);
 
         /* Return exception if parent is null */
 
@@ -251,7 +251,7 @@ acpi_get_next_object(acpi_object_type type,
 
                 /* Start search at the beginning of the specified scope */
 
-                parent_node = acpi_ns_map_handle_to_node(parent);
+                parent_node = acpi_ns_validate_handle(parent);
                 if (!parent_node) {
                         status = AE_BAD_PARAMETER;
                         goto unlock_and_exit;
@@ -260,7 +260,7 @@ acpi_get_next_object(acpi_object_type type,
                 /* Non-null handle, ignore the parent */
                 /* Convert and validate the handle */
 
-                child_node = acpi_ns_map_handle_to_node(child);
+                child_node = acpi_ns_validate_handle(child);
                 if (!child_node) {
                         status = AE_BAD_PARAMETER;
                         goto unlock_and_exit;
@@ -276,7 +276,7 @@ acpi_get_next_object(acpi_object_type type,
         }
 
         if (ret_handle) {
-                *ret_handle = acpi_ns_convert_entry_to_handle(node);
+                *ret_handle = ACPI_CAST_PTR(acpi_handle, node);
         }
 
       unlock_and_exit:
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index 12934ad6da8e..d0c1b91eb8ca 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -287,7 +287,8 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
         /* Invoke an internal method if necessary */
 
         if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
-                status = info->obj_desc->method.implementation(walk_state);
+                status =
+                    info->obj_desc->method.extra.implementation(walk_state);
                 info->return_object = walk_state->return_desc;
 
                 /* Cleanup states */
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 395212bcd19b..f27feb4772f6 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -104,7 +104,7 @@ acpi_rs_validate_parameters(acpi_handle device_handle,
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        node = acpi_ns_map_handle_to_node(device_handle);
+        node = acpi_ns_validate_handle(device_handle);
         if (!node) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 0f0c64bf8ac9..f857c5efb79f 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -323,11 +323,11 @@ acpi_ut_copy_ielement_to_eelement(u8 object_type,
  * RETURN:      Status
  *
  * DESCRIPTION: This function is called to place a package object in a user
- *              buffer.  A package object by definition contains other objects.
+ *              buffer. A package object by definition contains other objects.
  *
  *              The buffer is assumed to have sufficient space for the object.
- *              The caller must have verified the buffer length needed using the
- *              acpi_ut_get_object_size function before calling this function.
+ *              The caller must have verified the buffer length needed using
+ *              the acpi_ut_get_object_size function before calling this function.
  *
  ******************************************************************************/
 
@@ -382,12 +382,12 @@ acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
  * FUNCTION:    acpi_ut_copy_iobject_to_eobject
  *
  * PARAMETERS:  internal_object     - The internal object to be converted
- *              buffer_ptr          - Where the object is returned
+ *              ret_buffer          - Where the object is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to build an API object to be returned to
- *              the caller.
+ * DESCRIPTION: This function is called to build an API object to be returned
+ *              to the caller.
  *
  ******************************************************************************/
 
@@ -626,7 +626,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
  * PARAMETERS:  external_object     - The external object to be converted
  *              internal_object     - Where the internal object is returned
  *
- * RETURN:      Status              - the status of the call
+ * RETURN:      Status
  *
  * DESCRIPTION: Converts an external object to an internal object.
  *
@@ -665,7 +665,7 @@ acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Simple copy of one internal object to another.  Reference count
+ * DESCRIPTION: Simple copy of one internal object to another. Reference count
  *              of the destination object is preserved.
  *
  ******************************************************************************/
@@ -897,10 +897,11 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type,
  *
  * FUNCTION:    acpi_ut_copy_ipackage_to_ipackage
  *
- * PARAMETERS:  *source_obj     - Pointer to the source package object
- *              *dest_obj       - Where the internal object is returned
+ * PARAMETERS:  source_obj      - Pointer to the source package object
+ *              dest_obj        - Where the internal object is returned
+ *              walk_state      - Current Walk state descriptor
  *
- * RETURN:      Status          - the status of the call
+ * RETURN:      Status
  *
  * DESCRIPTION: This function is called to copy an internal package object
  *              into another internal package object.
@@ -953,9 +954,9 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
  *
  * FUNCTION:    acpi_ut_copy_iobject_to_iobject
  *
- * PARAMETERS:  walk_state          - Current walk state
- *              source_desc         - The internal object to be copied
+ * PARAMETERS:  source_desc         - The internal object to be copied
  *              dest_desc           - Where the copied object is returned
+ *              walk_state          - Current walk state
  *
  * RETURN:      Status
  *
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 3f4602b8f287..cada73ffdfa7 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -831,7 +831,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
                                         dev_name(&device->dev), event,
                                         acpi_battery_present(battery));
 #ifdef CONFIG_ACPI_SYSFS_POWER
-        /* acpi_batter_update could remove power_supply object */
+        /* acpi_battery_update could remove power_supply object */
         if (battery->bat.dev)
                 kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
 #endif
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 741191524353..65f7e335f122 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -344,6 +344,152 @@ bool acpi_bus_can_wakeup(acpi_handle handle)
 
 EXPORT_SYMBOL(acpi_bus_can_wakeup);
 
+static void acpi_print_osc_error(acpi_handle handle,
+        struct acpi_osc_context *context, char *error)
+{
+        struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER};
+        int i;
+
+        if (ACPI_FAILURE(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer)))
+                printk(KERN_DEBUG "%s\n", error);
+        else {
+                printk(KERN_DEBUG "%s:%s\n", (char *)buffer.pointer, error);
+                kfree(buffer.pointer);
+        }
+        printk(KERN_DEBUG"_OSC request data:");
+        for (i = 0; i < context->cap.length; i += sizeof(u32))
+                printk("%x ", *((u32 *)(context->cap.pointer + i)));
+        printk("\n");
+}
+
+static u8 hex_val(unsigned char c)
+{
+        return isdigit(c) ? c - '0' : toupper(c) - 'A' + 10;
+}
+
+static acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
+{
+        int i;
+        static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21,
+                24, 26, 28, 30, 32, 34};
+
+        if (strlen(str) != 36)
+                return AE_BAD_PARAMETER;
+        for (i = 0; i < 36; i++) {
+                if (i == 8 || i == 13 || i == 18 || i == 23) {
+                        if (str[i] != '-')
+                                return AE_BAD_PARAMETER;
+                } else if (!isxdigit(str[i]))
+                        return AE_BAD_PARAMETER;
+        }
+        for (i = 0; i < 16; i++) {
+                uuid[i] = hex_val(str[opc_map_to_uuid[i]]) << 4;
+                uuid[i] |= hex_val(str[opc_map_to_uuid[i] + 1]);
+        }
+        return AE_OK;
+}
+
+acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
+{
+        acpi_status status;
+        struct acpi_object_list input;
+        union acpi_object in_params[4];
+        union acpi_object *out_obj;
+        u8 uuid[16];
+        u32 errors;
+
+        if (!context)
+                return AE_ERROR;
+        if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid)))
+                return AE_ERROR;
+        context->ret.length = ACPI_ALLOCATE_BUFFER;
+        context->ret.pointer = NULL;
+
+        /* Setting up input parameters */
+        input.count = 4;
+        input.pointer = in_params;
+        in_params[0].type               = ACPI_TYPE_BUFFER;
+        in_params[0].buffer.length      = 16;
+        in_params[0].buffer.pointer     = uuid;
+        in_params[1].type               = ACPI_TYPE_INTEGER;
+        in_params[1].integer.value      = context->rev;
+        in_params[2].type               = ACPI_TYPE_INTEGER;
+        in_params[2].integer.value      = context->cap.length/sizeof(u32);
+        in_params[3].type               = ACPI_TYPE_BUFFER;
+        in_params[3].buffer.length      = context->cap.length;
+        in_params[3].buffer.pointer     = context->cap.pointer;
+
+        status = acpi_evaluate_object(handle, "_OSC", &input, &context->ret);
+        if (ACPI_FAILURE(status))
+                return status;
+
+        /* return buffer should have the same length as cap buffer */
+        if (context->ret.length != context->cap.length)
+                return AE_NULL_OBJECT;
+
+        out_obj = context->ret.pointer;
+        if (out_obj->type != ACPI_TYPE_BUFFER) {
+                acpi_print_osc_error(handle, context,
+                        "_OSC evaluation returned wrong type");
+                status = AE_TYPE;
+                goto out_kfree;
+        }
+        /* Need to ignore the bit0 in result code */
+        errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
+        if (errors) {
+                if (errors & OSC_REQUEST_ERROR)
+                        acpi_print_osc_error(handle, context,
+                                "_OSC request failed");
+                if (errors & OSC_INVALID_UUID_ERROR)
+                        acpi_print_osc_error(handle, context,
+                                "_OSC invalid UUID");
+                if (errors & OSC_INVALID_REVISION_ERROR)
+                        acpi_print_osc_error(handle, context,
+                                "_OSC invalid revision");
+                if (errors & OSC_CAPABILITIES_MASK_ERROR) {
+                        if (((u32 *)context->cap.pointer)[OSC_QUERY_TYPE]
+                            & OSC_QUERY_ENABLE)
+                                goto out_success;
+                        status = AE_SUPPORT;
+                        goto out_kfree;
+                }
+                status = AE_ERROR;
+                goto out_kfree;
+        }
+out_success:
+        return AE_OK;
+
+out_kfree:
+        kfree(context->ret.pointer);
+        context->ret.pointer = NULL;
+        return status;
+}
+EXPORT_SYMBOL(acpi_run_osc);
+
+static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48";
+static void acpi_bus_osc_support(void)
+{
+        u32 capbuf[2];
+        struct acpi_osc_context context = {
+                .uuid_str = sb_uuid_str,
+                .rev = 1,
+                .cap.length = 8,
+                .cap.pointer = capbuf,
+        };
+        acpi_handle handle;
+
+        capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
+        capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
+#ifdef CONFIG_ACPI_PROCESSOR_AGGREGATOR
+        capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT;
+#endif
+        if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
+                return;
+        if (ACPI_SUCCESS(acpi_run_osc(handle, &context)))
+                kfree(context.ret.pointer);
+        /* do we need to check the returned cap? Sounds no */
+}
+
 /* --------------------------------------------------------------------------
                                 Event Management
    -------------------------------------------------------------------------- */
@@ -734,6 +880,8 @@ static int __init acpi_bus_init(void)
         status = acpi_ec_ecdt_probe();
         /* Ignore result. Not having an ECDT is not fatal. */
 
+        acpi_bus_osc_support();
+
         status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
         if (ACPI_FAILURE(status)) {
                 printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n");
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 0c9c6a9a002c..8a95e8329df7 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -282,6 +282,13 @@ static int acpi_lid_send_state(struct acpi_device *device)
         if (ret == NOTIFY_DONE)
                 ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
                                                    device);
+        if (ret == NOTIFY_DONE || ret == NOTIFY_OK) {
+                /*
+                 * It is also regarded as success if the notifier_chain
+                 * returns NOTIFY_OK or NOTIFY_DONE.
+                 */
+                ret = 0;
+        }
         return ret;
 }
 
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index 8a690c3b8e23..cc421b7ae166 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/moduleparam.h>
+#include <linux/debugfs.h>
 #include <asm/uaccess.h>
 #include <acpi/acpi_drivers.h>
 
@@ -196,6 +197,80 @@ module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
                   NULL, 0644);
 
 /* --------------------------------------------------------------------------
+                                DebugFS Interface
+   -------------------------------------------------------------------------- */
+
+static ssize_t cm_write(struct file *file, const char __user *user_buf,
+                        size_t count, loff_t *ppos)
+{
+        static char *buf;
+        static int uncopied_bytes;
+        struct acpi_table_header table;
+        acpi_status status;
+
+        if (!(*ppos)) {
+                /* parse the table header to get the table length */
+                if (count <= sizeof(struct acpi_table_header))
+                        return -EINVAL;
+                if (copy_from_user(&table, user_buf,
+                        sizeof(struct acpi_table_header)))
+                        return -EFAULT;
+                uncopied_bytes = table.length;
+                buf = kzalloc(uncopied_bytes, GFP_KERNEL);
+                if (!buf)
+                        return -ENOMEM;
+        }
+
+        if (uncopied_bytes < count) {
+                kfree(buf);
+                return -EINVAL;
+        }
+
+        if (copy_from_user(buf + (*ppos), user_buf, count)) {
+                kfree(buf);
+                return -EFAULT;
+        }
+
+        uncopied_bytes -= count;
+        *ppos += count;
+
+        if (!uncopied_bytes) {
+                status = acpi_install_method(buf);
+                kfree(buf);
+                if (ACPI_FAILURE(status))
+                        return -EINVAL;
+                add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
+        }
+
+        return count;
+}
+
+static const struct file_operations cm_fops = {
+        .write = cm_write,
+};
+
+static int acpi_debugfs_init(void)
+{
+        struct dentry *acpi_dir, *cm_dentry;
+
+        acpi_dir = debugfs_create_dir("acpi", NULL);
+        if (!acpi_dir)
+                goto err;
+
+        cm_dentry = debugfs_create_file("custom_method", S_IWUGO,
+                                        acpi_dir, NULL, &cm_fops);
+        if (!cm_dentry)
+                goto err;
+
+        return 0;
+
+err:
+        if (acpi_dir)
+                debugfs_remove(acpi_dir);
+        return -EINVAL;
+}
+
+/* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 #ifdef CONFIG_ACPI_PROCFS
@@ -286,7 +361,7 @@ static const struct file_operations acpi_system_debug_proc_fops = {
 };
 #endif
 
-int __init acpi_debug_init(void)
+int __init acpi_procfs_init(void)
 {
 #ifdef CONFIG_ACPI_PROCFS
         struct proc_dir_entry *entry;
@@ -321,3 +396,10 @@ int __init acpi_debug_init(void)
         return 0;
 #endif
 }
+
+int __init acpi_debug_init(void)
+{
+        acpi_debugfs_init();
+        acpi_procfs_init();
+        return 0;
+}
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 30be3c148f7e..bbc2c1315c47 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -50,7 +50,6 @@ MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to "
         " before undocking");
 
 static struct atomic_notifier_head dock_notifier_list;
-static char dock_device_name[] = "dock";
 
 static const struct acpi_device_id dock_device_ids[] = {
         {"LNXDOCK", 0},
@@ -93,40 +92,30 @@ struct dock_dependent_device {
  *                         Dock Dependent device functions                   *
  *****************************************************************************/
 /**
- *  alloc_dock_dependent_device - allocate and init a dependent device
- *  @handle: the acpi_handle of the dependent device
+ * add_dock_dependent_device - associate a device with the dock station
+ * @ds: The dock station
+ * @handle: handle of the dependent device
  *
- *  Allocate memory for a dependent device structure for a device referenced
- *  by the acpi handle
+ * Add the dependent device to the dock's dependent device list.
  */
-static struct dock_dependent_device *
-alloc_dock_dependent_device(acpi_handle handle)
+static int
+add_dock_dependent_device(struct dock_station *ds, acpi_handle handle)
 {
         struct dock_dependent_device *dd;
 
         dd = kzalloc(sizeof(*dd), GFP_KERNEL);
-        if (dd) {
-                dd->handle = handle;
-                INIT_LIST_HEAD(&dd->list);
-                INIT_LIST_HEAD(&dd->hotplug_list);
-        }
-        return dd;
-}
+        if (!dd)
+                return -ENOMEM;
+
+        dd->handle = handle;
+        INIT_LIST_HEAD(&dd->list);
+        INIT_LIST_HEAD(&dd->hotplug_list);
 
-/**
- * add_dock_dependent_device - associate a device with the dock station
- * @ds: The dock station
- * @dd: The dependent device
- *
- * Add the dependent device to the dock's dependent device list.
- */
-static void
-add_dock_dependent_device(struct dock_station *ds,
-                          struct dock_dependent_device *dd)
-{
         spin_lock(&ds->dd_lock);
         list_add_tail(&dd->list, &ds->dependent_devices);
         spin_unlock(&ds->dd_lock);
+
+        return 0;
 }
 
 /**
@@ -249,6 +238,7 @@ static int is_battery(acpi_handle handle)
 static int is_ejectable_bay(acpi_handle handle)
 {
         acpi_handle phandle;
+
         if (!is_ejectable(handle))
                 return 0;
         if (is_battery(handle) || is_ata(handle))
@@ -275,14 +265,13 @@ int is_dock_device(acpi_handle handle)
 
         if (is_dock(handle))
                 return 1;
-        list_for_each_entry(dock_station, &dock_stations, sibling) {
+
+        list_for_each_entry(dock_station, &dock_stations, sibling)
                 if (find_dock_dependent_device(dock_station, handle))
                         return 1;
-        }
 
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(is_dock_device);
 
 /**
@@ -305,8 +294,6 @@ static int dock_present(struct dock_station *ds)
         return 0;
 }
 
-
-
 /**
  * dock_create_acpi_device - add new devices to acpi
  * @handle - handle of the device to add
@@ -320,7 +307,7 @@ static int dock_present(struct dock_station *ds)
  */
 static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 {
-        struct acpi_device *device = NULL;
+        struct acpi_device *device;
         struct acpi_device *parent_device;
         acpi_handle parent;
         int ret;
@@ -337,8 +324,7 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
                 ret = acpi_bus_add(&device, parent_device, handle,
                         ACPI_BUS_TYPE_DEVICE);
                 if (ret) {
-                        pr_debug("error adding bus, %x\n",
-                                -ret);
+                        pr_debug("error adding bus, %x\n", -ret);
                         return NULL;
                 }
         }
@@ -364,7 +350,6 @@ static void dock_remove_acpi_device(acpi_handle handle)
         }
 }
 
-
 /**
  * hotplug_dock_devices - insert or remove devices on the dock station
  * @ds: the dock station
@@ -384,10 +369,9 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
         /*
          * First call driver specific hotplug functions
          */
-        list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list) {
+        list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list)
                 if (dd->ops && dd->ops->handler)
                         dd->ops->handler(dd->handle, event, dd->context);
-        }
 
         /*
          * Now make sure that an acpi_device is created for each
@@ -426,6 +410,7 @@ static void dock_event(struct dock_station *ds, u32 event, int num)
         list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list)
                 if (dd->ops && dd->ops->uevent)
                         dd->ops->uevent(dd->handle, event, dd->context);
+
         if (num != DOCK_EVENT)
                 kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
 }
@@ -456,8 +441,8 @@ static void eject_dock(struct dock_station *ds)
         arg.type = ACPI_TYPE_INTEGER;
         arg.integer.value = 1;
 
-        if (ACPI_FAILURE(acpi_evaluate_object(ds->handle, "_EJ0",
-                                              &arg_list, NULL)))
+        status = acpi_evaluate_object(ds->handle, "_EJ0", &arg_list, NULL);
+        if (ACPI_FAILURE(status))
                 pr_debug("Failed to evaluate _EJ0!\n");
 }
 
@@ -577,7 +562,6 @@ int register_dock_notifier(struct notifier_block *nb)
 
         return atomic_notifier_chain_register(&dock_notifier_list, nb);
 }
-
 EXPORT_SYMBOL_GPL(register_dock_notifier);
 
 /**
@@ -591,7 +575,6 @@ void unregister_dock_notifier(struct notifier_block *nb)
 
         atomic_notifier_chain_unregister(&dock_notifier_list, nb);
 }
-
 EXPORT_SYMBOL_GPL(unregister_dock_notifier);
 
 /**
@@ -636,7 +619,6 @@ register_hotplug_dock_device(acpi_handle handle, struct acpi_dock_ops *ops,
 
         return ret;
 }
-
 EXPORT_SYMBOL_GPL(register_hotplug_dock_device);
 
 /**
@@ -657,7 +639,6 @@ void unregister_hotplug_dock_device(acpi_handle handle)
                         dock_del_hotplug_device(dock_station, dd);
         }
 }
-
 EXPORT_SYMBOL_GPL(unregister_hotplug_dock_device);
 
 /**
@@ -772,7 +753,7 @@ struct dock_data {
 
 static void acpi_dock_deferred_cb(void *context)
 {
-        struct dock_data *data = (struct dock_data *)context;
+        struct dock_data *data = context;
 
         dock_notify(data->handle, data->event, data->ds);
         kfree(data);
@@ -782,23 +763,22 @@ static int acpi_dock_notifier_call(struct notifier_block *this,
         unsigned long event, void *data)
 {
         struct dock_station *dock_station;
-        acpi_handle handle = (acpi_handle)data;
+        acpi_handle handle = data;
 
         if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK
            && event != ACPI_NOTIFY_EJECT_REQUEST)
                 return 0;
         list_for_each_entry(dock_station, &dock_stations, sibling) {
                 if (dock_station->handle == handle) {
-                        struct dock_data *dock_data;
+                        struct dock_data *dd;
 
-                        dock_data = kmalloc(sizeof(*dock_data), GFP_KERNEL);
-                        if (!dock_data)
+                        dd = kmalloc(sizeof(*dd), GFP_KERNEL);
+                        if (!dd)
                                 return 0;
-                        dock_data->handle = handle;
-                        dock_data->event = event;
-                        dock_data->ds = dock_station;
-                        acpi_os_hotplug_execute(acpi_dock_deferred_cb,
-                                dock_data);
+                        dd->handle = handle;
+                        dd->event = event;
+                        dd->ds = dock_station;
+                        acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd);
                         return 0 ;
                 }
         }
@@ -826,7 +806,6 @@ find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv)
         acpi_status status;
         acpi_handle tmp, parent;
         struct dock_station *ds = context;
-        struct dock_dependent_device *dd;
 
         status = acpi_bus_get_ejd(handle, &tmp);
         if (ACPI_FAILURE(status)) {
@@ -840,11 +819,9 @@ find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv)
                         goto fdd_out;
         }
 
-        if (tmp == ds->handle) {
-                dd = alloc_dock_dependent_device(handle);
-                if (dd)
-                        add_dock_dependent_device(ds, dd);
-        }
+        if (tmp == ds->handle)
+                add_dock_dependent_device(ds, handle);
+
 fdd_out:
         return AE_OK;
 }
@@ -857,8 +834,7 @@ static ssize_t show_docked(struct device *dev,
 {
         struct acpi_device *tmp;
 
-        struct dock_station *dock_station = *((struct dock_station **)
-                dev->platform_data);
+        struct dock_station *dock_station = dev->platform_data;
 
         if (ACPI_SUCCESS(acpi_bus_get_device(dock_station->handle, &tmp)))
                 return snprintf(buf, PAGE_SIZE, "1\n");
@@ -872,8 +848,7 @@ static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
 static ssize_t show_flags(struct device *dev,
                           struct device_attribute *attr, char *buf)
 {
-        struct dock_station *dock_station = *((struct dock_station **)
-                dev->platform_data);
+        struct dock_station *dock_station = dev->platform_data;
         return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
 
 }
@@ -886,8 +861,7 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
                            const char *buf, size_t count)
 {
         int ret;
-        struct dock_station *dock_station = *((struct dock_station **)
-                dev->platform_data);
+        struct dock_station *dock_station = dev->platform_data;
 
         if (!count)
                 return -EINVAL;
@@ -905,8 +879,7 @@ static ssize_t show_dock_uid(struct device *dev,
                              struct device_attribute *attr, char *buf)
 {
         unsigned long long lbuf;
-        struct dock_station *dock_station = *((struct dock_station **)
-                dev->platform_data);
+        struct dock_station *dock_station = dev->platform_data;
         acpi_status status = acpi_evaluate_integer(dock_station->handle,
                                         "_UID", NULL, &lbuf);
         if (ACPI_FAILURE(status))
@@ -919,8 +892,7 @@ static DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
 static ssize_t show_dock_type(struct device *dev,
                 struct device_attribute *attr, char *buf)
 {
-        struct dock_station *dock_station = *((struct dock_station **)
-                dev->platform_data);
+        struct dock_station *dock_station = dev->platform_data;
         char *type;
 
         if (dock_station->flags & DOCK_IS_DOCK)
@@ -936,6 +908,19 @@ static ssize_t show_dock_type(struct device *dev,
 }
 static DEVICE_ATTR(type, S_IRUGO, show_dock_type, NULL);
 
+static struct attribute *dock_attributes[] = {
+        &dev_attr_docked.attr,
+        &dev_attr_flags.attr,
+        &dev_attr_undock.attr,
+        &dev_attr_uid.attr,
+        &dev_attr_type.attr,
+        NULL
+};
+
+static struct attribute_group dock_attribute_group = {
+        .attrs = dock_attributes
+};
+
 /**
  * dock_add - add a new dock station
  * @handle: the dock station handle
@@ -945,39 +930,30 @@ static DEVICE_ATTR(type, S_IRUGO, show_dock_type, NULL);
  */
 static int dock_add(acpi_handle handle)
 {
-        int ret;
-        struct dock_dependent_device *dd;
-        struct dock_station *dock_station;
-        struct platform_device *dock_device;
+        int ret, id;
+        struct dock_station ds, *dock_station;
+        struct platform_device *dd;
+
+        id = dock_station_count;
+        dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
+        if (IS_ERR(dd))
+                return PTR_ERR(dd);
+
+        dock_station = dd->dev.platform_data;
 
-        /* allocate & initialize the dock_station private data */
-        dock_station = kzalloc(sizeof(*dock_station), GFP_KERNEL);
-        if (!dock_station)
-                return -ENOMEM;
         dock_station->handle = handle;
+        dock_station->dock_device = dd;
         dock_station->last_dock_time = jiffies - HZ;
-        INIT_LIST_HEAD(&dock_station->dependent_devices);
-        INIT_LIST_HEAD(&dock_station->hotplug_devices);
-        INIT_LIST_HEAD(&dock_station->sibling);
-        spin_lock_init(&dock_station->dd_lock);
+
         mutex_init(&dock_station->hp_lock);
+        spin_lock_init(&dock_station->dd_lock);
+        INIT_LIST_HEAD(&dock_station->sibling);
+        INIT_LIST_HEAD(&dock_station->hotplug_devices);
         ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
-
-        /* initialize platform device stuff */
-        dock_station->dock_device =
-                platform_device_register_simple(dock_device_name,
-                        dock_station_count, NULL, 0);
-        dock_device = dock_station->dock_device;
-        if (IS_ERR(dock_device)) {
-                kfree(dock_station);
-                dock_station = NULL;
-                return PTR_ERR(dock_device);
-        }
-        platform_device_add_data(dock_device, &dock_station,
-                sizeof(struct dock_station *));
+        INIT_LIST_HEAD(&dock_station->dependent_devices);
 
         /* we want the dock device to send uevents */
-        dev_set_uevent_suppress(&dock_device->dev, 0);
+        dev_set_uevent_suppress(&dd->dev, 0);
 
         if (is_dock(handle))
                 dock_station->flags |= DOCK_IS_DOCK;
@@ -986,47 +962,9 @@ static int dock_add(acpi_handle handle)
         if (is_battery(handle))
                 dock_station->flags |= DOCK_IS_BAT;
 
-        ret = device_create_file(&dock_device->dev, &dev_attr_docked);
-        if (ret) {
-                printk(KERN_ERR "Error %d adding sysfs file\n", ret);
-                platform_device_unregister(dock_device);
-                kfree(dock_station);
-                dock_station = NULL;
-                return ret;
-        }
-        ret = device_create_file(&dock_device->dev, &dev_attr_undock);
-        if (ret) {
-                printk(KERN_ERR "Error %d adding sysfs file\n", ret);
-                device_remove_file(&dock_device->dev, &dev_attr_docked);
-                platform_device_unregister(dock_device);
-                kfree(dock_station);
-                dock_station = NULL;
-                return ret;
-        }
-        ret = device_create_file(&dock_device->dev, &dev_attr_uid);
-        if (ret) {
-                printk(KERN_ERR "Error %d adding sysfs file\n", ret);
-                device_remove_file(&dock_device->dev, &dev_attr_docked);
-                device_remove_file(&dock_device->dev, &dev_attr_undock);
-                platform_device_unregister(dock_device);
-                kfree(dock_station);
-                dock_station = NULL;
-                return ret;
-        }
-        ret = device_create_file(&dock_device->dev, &dev_attr_flags);
-        if (ret) {
-                printk(KERN_ERR "Error %d adding sysfs file\n", ret);
-                device_remove_file(&dock_device->dev, &dev_attr_docked);
-                device_remove_file(&dock_device->dev, &dev_attr_undock);
-                device_remove_file(&dock_device->dev, &dev_attr_uid);
-                platform_device_unregister(dock_device);
-                kfree(dock_station);
-                dock_station = NULL;
-                return ret;
-        }
-        ret = device_create_file(&dock_device->dev, &dev_attr_type);
+        ret = sysfs_create_group(&dd->dev.kobj, &dock_attribute_group);
         if (ret)
-                printk(KERN_ERR"Error %d adding sysfs file\n", ret);
+                goto err_unregister;
 
         /* Find dependent devices */
         acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
@@ -1034,58 +972,43 @@ static int dock_add(acpi_handle handle)
                             dock_station, NULL);
 
         /* add the dock station as a device dependent on itself */
-        dd = alloc_dock_dependent_device(handle);
-        if (!dd) {
-                kfree(dock_station);
-                dock_station = NULL;
-                ret = -ENOMEM;
-                goto dock_add_err_unregister;
-        }
-        add_dock_dependent_device(dock_station, dd);
+        ret = add_dock_dependent_device(dock_station, handle);
+        if (ret)
+                goto err_rmgroup;
 
         dock_station_count++;
         list_add(&dock_station->sibling, &dock_stations);
         return 0;
 
-dock_add_err_unregister:
-        device_remove_file(&dock_device->dev, &dev_attr_type);
-        device_remove_file(&dock_device->dev, &dev_attr_docked);
-        device_remove_file(&dock_device->dev, &dev_attr_undock);
-        device_remove_file(&dock_device->dev, &dev_attr_uid);
-        device_remove_file(&dock_device->dev, &dev_attr_flags);
-        platform_device_unregister(dock_device);
-        kfree(dock_station);
-        dock_station = NULL;
+err_rmgroup:
+        sysfs_remove_group(&dd->dev.kobj, &dock_attribute_group);
+err_unregister:
+        platform_device_unregister(dd);
+        printk(KERN_ERR "%s encountered error %d\n", __func__, ret);
         return ret;
 }
 
 /**
  * dock_remove - free up resources related to the dock station
  */
-static int dock_remove(struct dock_station *dock_station)
+static int dock_remove(struct dock_station *ds)
 {
         struct dock_dependent_device *dd, *tmp;
-        struct platform_device *dock_device = dock_station->dock_device;
+        struct platform_device *dock_device = ds->dock_device;
 
         if (!dock_station_count)
                 return 0;
 
         /* remove dependent devices */
-        list_for_each_entry_safe(dd, tmp, &dock_station->dependent_devices,
-                                 list)
-            kfree(dd);
+        list_for_each_entry_safe(dd, tmp, &ds->dependent_devices, list)
+                kfree(dd);
+
+        list_del(&ds->sibling);
 
         /* cleanup sysfs */
-        device_remove_file(&dock_device->dev, &dev_attr_type);
-        device_remove_file(&dock_device->dev, &dev_attr_docked);
-        device_remove_file(&dock_device->dev, &dev_attr_undock);
-        device_remove_file(&dock_device->dev, &dev_attr_uid);
-        device_remove_file(&dock_device->dev, &dev_attr_flags);
+        sysfs_remove_group(&dock_device->dev.kobj, &dock_attribute_group);
         platform_device_unregister(dock_device);
 
-        /* free dock station memory */
-        kfree(dock_station);
-        dock_station = NULL;
         return 0;
 }
 
@@ -1103,11 +1026,10 @@ find_dock(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
         acpi_status status = AE_OK;
 
-        if (is_dock(handle)) {
-                if (dock_add(handle) >= 0) {
+        if (is_dock(handle))
+                if (dock_add(handle) >= 0)
                         status = AE_CTRL_TERMINATE;
-                }
-        }
+
         return status;
 }
 
@@ -1145,8 +1067,7 @@ static int __init dock_init(void)
 
 static void __exit dock_exit(void)
 {
-        struct dock_station *dock_station;
-        struct dock_station *tmp;
+        struct dock_station *tmp, *dock_station;
 
         unregister_acpi_bus_notifier(&dock_acpi_notifier);
         list_for_each_entry_safe(dock_station, tmp, &dock_stations, sibling)
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index f419849a0d3f..acf2ab249842 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -267,7 +267,7 @@ static int acpi_fan_add(struct acpi_device *device)
                 goto end;
         }
 
-        dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id);
+        dev_dbg(&device->dev, "registered as cooling_device%d\n", cdev->id);
 
         device->driver_data = cdev;
         result = sysfs_create_link(&device->dev.kobj,
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 2be2fb66204e..7ad48dfc12db 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
+#include <linux/numa.h>
 #include <acpi/acpi_bus.h>
 
 #define PREFIX "ACPI: "
@@ -40,14 +41,14 @@ static nodemask_t nodes_found_map = NODE_MASK_NONE;
 
 /* maps to convert between proximity domain and logical node ID */
 static int pxm_to_node_map[MAX_PXM_DOMAINS]
-                                = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
+                        = { [0 ... MAX_PXM_DOMAINS - 1] = NUMA_NO_NODE };
 static int node_to_pxm_map[MAX_NUMNODES]
-                                = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
+                        = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 int pxm_to_node(int pxm)
 {
         if (pxm < 0)
-                return NID_INVAL;
+                return NUMA_NO_NODE;
         return pxm_to_node_map[pxm];
 }
 
@@ -68,9 +69,9 @@ int acpi_map_pxm_to_node(int pxm)
 {
         int node = pxm_to_node_map[pxm];
 
-        if (node < 0){
+        if (node < 0) {
                 if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
-                        return NID_INVAL;
+                        return NUMA_NO_NODE;
                 node = first_unset_node(nodes_found_map);
                 __acpi_map_pxm_to_node(pxm, node);
                 node_set(node, nodes_found_map);
@@ -79,16 +80,6 @@ int acpi_map_pxm_to_node(int pxm)
         return node;
 }
 
-#if 0
-void __cpuinit acpi_unmap_pxm_to_node(int node)
-{
-        int pxm = node_to_pxm_map[node];
-        pxm_to_node_map[pxm] = NID_INVAL;
-        node_to_pxm_map[node] = PXM_INVAL;
-        node_clear(node, nodes_found_map);
-}
-#endif  /*  0  */
-
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 7c1c59ea9ec6..02e8464e480f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1118,7 +1118,7 @@ __setup("acpi_enforce_resources=", acpi_enforce_resources_setup);
 
 /* Check for resource conflicts between ACPI OperationRegions and native
  * drivers */
-int acpi_check_resource_conflict(struct resource *res)
+int acpi_check_resource_conflict(const struct resource *res)
 {
         struct acpi_res_list *res_list_elem;
         int ioport;
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 1af808171d46..101cce3681d1 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -202,72 +202,24 @@ static void acpi_pci_bridge_scan(struct acpi_device *device)
                 }
 }
 
-static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40,
-                          0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66};
+static u8 pci_osc_uuid_str[] = "33DB4D5B-1FF7-401C-9657-7441C03DD766";
 
 static acpi_status acpi_pci_run_osc(acpi_handle handle,
                                     const u32 *capbuf, u32 *retval)
 {
+        struct acpi_osc_context context = {
+                .uuid_str = pci_osc_uuid_str,
+                .rev = 1,
+                .cap.length = 12,
+                .cap.pointer = (void *)capbuf,
+        };
         acpi_status status;
-        struct acpi_object_list input;
-        union acpi_object in_params[4];
-        struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
-        union acpi_object *out_obj;
-        u32 errors;
-
-        /* Setting up input parameters */
-        input.count = 4;
-        input.pointer = in_params;
-        in_params[0].type               = ACPI_TYPE_BUFFER;
-        in_params[0].buffer.length      = 16;
-        in_params[0].buffer.pointer     = OSC_UUID;
-        in_params[1].type               = ACPI_TYPE_INTEGER;
-        in_params[1].integer.value      = 1;
-        in_params[2].type               = ACPI_TYPE_INTEGER;
-        in_params[2].integer.value      = 3;
-        in_params[3].type               = ACPI_TYPE_BUFFER;
-        in_params[3].buffer.length      = 12;
-        in_params[3].buffer.pointer     = (u8 *)capbuf;
-
-        status = acpi_evaluate_object(handle, "_OSC", &input, &output);
-        if (ACPI_FAILURE(status))
-                return status;
 
-        if (!output.length)
-                return AE_NULL_OBJECT;
-
-        out_obj = output.pointer;
-        if (out_obj->type != ACPI_TYPE_BUFFER) {
-                printk(KERN_DEBUG "_OSC evaluation returned wrong type\n");
-                status = AE_TYPE;
-                goto out_kfree;
-        }
-        /* Need to ignore the bit0 in result code */
-        errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
-        if (errors) {
-                if (errors & OSC_REQUEST_ERROR)
-                        printk(KERN_DEBUG "_OSC request failed\n");
-                if (errors & OSC_INVALID_UUID_ERROR)
-                        printk(KERN_DEBUG "_OSC invalid UUID\n");
-                if (errors & OSC_INVALID_REVISION_ERROR)
-                        printk(KERN_DEBUG "_OSC invalid revision\n");
-                if (errors & OSC_CAPABILITIES_MASK_ERROR) {
-                        if (capbuf[OSC_QUERY_TYPE] & OSC_QUERY_ENABLE)
-                                goto out_success;
-                        printk(KERN_DEBUG
-                               "Firmware did not grant requested _OSC control\n");
-                        status = AE_SUPPORT;
-                        goto out_kfree;
-                }
-                status = AE_ERROR;
-                goto out_kfree;
+        status = acpi_run_osc(handle, &context);
+        if (ACPI_SUCCESS(status)) {
+                *retval = *((u32 *)(context.ret.pointer + 8));
+                kfree(context.ret.pointer);
         }
-out_success:
-        *retval = *((u32 *)(out_obj->buffer.pointer + 8));
-        status = AE_OK;
-
-out_kfree:
-        kfree(output.pointer);
         return status;
 }
 
@@ -277,10 +229,10 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, u32 flags)
         u32 support_set, result, capbuf[3];
 
         /* do _OSC query for all possible controls */
-        support_set = root->osc_support_set | (flags & OSC_SUPPORT_MASKS);
+        support_set = root->osc_support_set | (flags & OSC_PCI_SUPPORT_MASKS);
         capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
         capbuf[OSC_SUPPORT_TYPE] = support_set;
-        capbuf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS;
+        capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
 
         status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
         if (ACPI_SUCCESS(status)) {
@@ -427,7 +379,7 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags)
         if (ACPI_FAILURE(status))
                 return status;
 
-        control_req = (flags & OSC_CONTROL_MASKS);
+        control_req = (flags & OSC_PCI_CONTROL_MASKS);
         if (!control_req)
                 return AE_TYPE;
 
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index cb4283f5a79d..41731236f9a1 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -353,7 +353,7 @@ static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
                            PDE(inode)->data);
 }
 
-static int acpi_processor_add_fs(struct acpi_device *device)
+static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
 {
         struct proc_dir_entry *entry = NULL;
 
@@ -722,7 +722,7 @@ static void acpi_processor_notify(struct acpi_device *device, u32 event)
         switch (event) {
         case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
                 saved = pr->performance_platform_limit;
-                acpi_processor_ppc_has_changed(pr);
+                acpi_processor_ppc_has_changed(pr, 1);
                 if (saved == pr->performance_platform_limit)
                         break;
                 acpi_bus_generate_proc_event(device, event,
@@ -758,7 +758,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
         struct acpi_processor *pr = per_cpu(processors, cpu);
 
         if (action == CPU_ONLINE && pr) {
-                acpi_processor_ppc_has_changed(pr);
+                acpi_processor_ppc_has_changed(pr, 0);
                 acpi_processor_cst_has_changed(pr);
                 acpi_processor_tstate_has_changed(pr);
         }
@@ -830,7 +830,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
         arch_acpi_processor_cleanup_pdc(pr);
 
 #ifdef CONFIG_CPU_FREQ
-        acpi_processor_ppc_has_changed(pr);
+        acpi_processor_ppc_has_changed(pr, 0);
 #endif
         acpi_processor_get_throttling_info(pr);
         acpi_processor_get_limit_info(pr);
@@ -845,7 +845,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
                 goto err_power_exit;
         }
 
-        dev_info(&device->dev, "registered as cooling_device%d\n",
+        dev_dbg(&device->dev, "registered as cooling_device%d\n",
                  pr->cdev->id);
 
         result = sysfs_create_link(&device->dev.kobj,
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index bbd066e7f854..d1676b1754d9 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -164,7 +164,7 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr,
                 pr->power.timer_broadcast_on_state = state;
 }
 
-static void lapic_timer_propagate_broadcast(void *arg)
+static void __lapic_timer_propagate_broadcast(void *arg)
 {
         struct acpi_processor *pr = (struct acpi_processor *) arg;
         unsigned long reason;
@@ -175,6 +175,12 @@ static void lapic_timer_propagate_broadcast(void *arg)
         clockevents_notify(reason, &pr->id);
 }
 
+static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
+{
+        smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,
+                                 (void *)pr, 1);
+}
+
 /* Power(C) State timer broadcast control */
 static void lapic_timer_state_broadcast(struct acpi_processor *pr,
                                        struct acpi_processor_cx *cx,
@@ -638,8 +644,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
                 working++;
         }
 
-        smp_call_function_single(pr->id, lapic_timer_propagate_broadcast,
-                                 pr, 1);
+        lapic_timer_propagate_broadcast(pr);
 
         return (working);
 }
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 01e366d2b6fb..2cabadcc4d8c 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -152,15 +152,59 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
         return 0;
 }
 
-int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
+#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE       0x80
+/*
+ * acpi_processor_ppc_ost: Notify firmware the _PPC evaluation status
+ * @handle: ACPI processor handle
+ * @status: the status code of _PPC evaluation
+ *      0: success. OSPM is now using the performance state specificed.
+ *      1: failure. OSPM has not changed the number of P-states in use
+ */
+static void acpi_processor_ppc_ost(acpi_handle handle, int status)
+{
+        union acpi_object params[2] = {
+                {.type = ACPI_TYPE_INTEGER,},
+                {.type = ACPI_TYPE_INTEGER,},
+        };
+        struct acpi_object_list arg_list = {2, params};
+        acpi_handle temp;
+
+        params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE;
+        params[1].integer.value =  status;
+
+        /* when there is no _OST , skip it */
+        if (ACPI_FAILURE(acpi_get_handle(handle, "_OST", &temp)))
+                return;
+
+        acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
+        return;
+}
+
+int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag)
 {
         int ret;
 
-        if (ignore_ppc)
+        if (ignore_ppc) {
+                /*
+                 * Only when it is notification event, the _OST object
+                 * will be evaluated. Otherwise it is skipped.
+                 */
+                if (event_flag)
+                        acpi_processor_ppc_ost(pr->handle, 1);
                 return 0;
+        }
 
         ret = acpi_processor_get_platform_limit(pr);
-
+        /*
+         * Only when it is notification event, the _OST object
+         * will be evaluated. Otherwise it is skipped.
+         */
+        if (event_flag) {
+                if (ret < 0)
+                        acpi_processor_ppc_ost(pr->handle, 1);
+                else
+                        acpi_processor_ppc_ost(pr->handle, 0);
+        }
         if (ret < 0)
                 return (ret);
         else
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 65f67815902a..9073ada88835 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1052,6 +1052,13 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
                                    acpi_device_bid(device));
                 }
                 seq_puts(seq, "\n");
+        } else {
+                seq_printf(seq, "passive (forced):");
+                if (tz->thermal_zone->forced_passive)
+                        seq_printf(seq, "        %i C\n",
+                                   tz->thermal_zone->forced_passive / 1000);
+                else
+                        seq_printf(seq, "<not set>\n");
         }
 
         for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index d2e698096ace..679cd08b80b4 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -64,6 +64,7 @@
 #include <linux/dmi.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
+#include <linux/pnp.h>
 
 #ifdef CONFIG_PPC_OF
 #include <linux/of_device.h>
@@ -1919,7 +1920,7 @@ struct SPMITable {
         s8      spmi_id[1]; /* A '\0' terminated array starts here. */
 };
 
-static __devinit int try_init_acpi(struct SPMITable *spmi)
+static __devinit int try_init_spmi(struct SPMITable *spmi)
 {
         struct smi_info  *info;
         u8               addr_space;
@@ -1940,7 +1941,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
                 return -ENOMEM;
         }
 
-        info->addr_source = "ACPI";
+        info->addr_source = "SPMI";
 
         /* Figure out the interface type. */
         switch (spmi->InterfaceType) {
@@ -2002,7 +2003,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
         return 0;
 }
 
-static __devinit void acpi_find_bmc(void)
+static __devinit void spmi_find_bmc(void)
 {
         acpi_status      status;
         struct SPMITable *spmi;
@@ -2020,9 +2021,106 @@ static __devinit void acpi_find_bmc(void)
                 if (status != AE_OK)
                         return;
 
-                try_init_acpi(spmi);
+                try_init_spmi(spmi);
         }
 }
+
+static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
+                                    const struct pnp_device_id *dev_id)
+{
+        struct acpi_device *acpi_dev;
+        struct smi_info *info;
+        acpi_handle handle;
+        acpi_status status;
+        unsigned long long tmp;
+
+        acpi_dev = pnp_acpi_device(dev);
+        if (!acpi_dev)
+                return -ENODEV;
+
+        info = kzalloc(sizeof(*info), GFP_KERNEL);
+        if (!info)
+                return -ENOMEM;
+
+        info->addr_source = "ACPI";
+
+        handle = acpi_dev->handle;
+
+        /* _IFT tells us the interface type: KCS, BT, etc */
+        status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
+        if (ACPI_FAILURE(status))
+                goto err_free;
+
+        switch (tmp) {
+        case 1:
+                info->si_type = SI_KCS;
+                break;
+        case 2:
+                info->si_type = SI_SMIC;
+                break;
+        case 3:
+                info->si_type = SI_BT;
+                break;
+        default:
+                dev_info(&dev->dev, "unknown interface type %lld\n", tmp);
+                goto err_free;
+        }
+
+        if (pnp_port_valid(dev, 0)) {
+                info->io_setup = port_setup;
+                info->io.addr_type = IPMI_IO_ADDR_SPACE;
+                info->io.addr_data = pnp_port_start(dev, 0);
+        } else if (pnp_mem_valid(dev, 0)) {
+                info->io_setup = mem_setup;
+                info->io.addr_type = IPMI_MEM_ADDR_SPACE;
+                info->io.addr_data = pnp_mem_start(dev, 0);
+        } else {
+                dev_err(&dev->dev, "no I/O or memory address\n");
+                goto err_free;
+        }
+
+        info->io.regspacing = DEFAULT_REGSPACING;
+        info->io.regsize = DEFAULT_REGSPACING;
+        info->io.regshift = 0;
+
+        /* If _GPE exists, use it; otherwise use standard interrupts */
+        status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
+        if (ACPI_SUCCESS(status)) {
+                info->irq = tmp;
+                info->irq_setup = acpi_gpe_irq_setup;
+        } else if (pnp_irq_valid(dev, 0)) {
+                info->irq = pnp_irq(dev, 0);
+                info->irq_setup = std_irq_setup;
+        }
+
+        info->dev = &acpi_dev->dev;
+        pnp_set_drvdata(dev, info);
+
+        return try_smi_init(info);
+
+err_free:
+        kfree(info);
+        return -EINVAL;
+}
+
+static void __devexit ipmi_pnp_remove(struct pnp_dev *dev)
+{
+        struct smi_info *info = pnp_get_drvdata(dev);
+
+        cleanup_one_si(info);
+}
+
+static const struct pnp_device_id pnp_dev_table[] = {
+        {"IPI0001", 0},
+        {"", 0},
+};
+
+static struct pnp_driver ipmi_pnp_driver = {
+        .name           = DEVICE_NAME,
+        .probe          = ipmi_pnp_probe,
+        .remove         = __devexit_p(ipmi_pnp_remove),
+        .id_table       = pnp_dev_table,
+};
 #endif
 
 #ifdef CONFIG_DMI
@@ -2202,7 +2300,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
         int rv;
         int class_type = pdev->class & PCI_ERMC_CLASSCODE_TYPE_MASK;
         struct smi_info *info;
-        int first_reg_offset = 0;
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info)
@@ -2241,9 +2338,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
         info->addr_source_cleanup = ipmi_pci_cleanup;
         info->addr_source_data = pdev;
 
-        if (pdev->subsystem_vendor == PCI_HP_VENDOR_ID)
-                first_reg_offset = 1;
-
         if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) {
                 info->io_setup = port_setup;
                 info->io.addr_type = IPMI_IO_ADDR_SPACE;
@@ -3108,7 +3202,10 @@ static __devinit int init_ipmi_si(void)
 #endif
 
 #ifdef CONFIG_ACPI
-        acpi_find_bmc();
+        spmi_find_bmc();
+#endif
+#ifdef CONFIG_PNP
+        pnp_register_driver(&ipmi_pnp_driver);
 #endif
 
 #ifdef CONFIG_PCI
@@ -3233,6 +3330,9 @@ static __exit void cleanup_ipmi_si(void)
 #ifdef CONFIG_PCI
         pci_unregister_driver(&ipmi_pci_driver);
 #endif
+#ifdef CONFIG_PNP
+        pnp_unregister_driver(&ipmi_pnp_driver);
+#endif
 
 #ifdef CONFIG_PPC_OF
         of_unregister_platform_driver(&ipmi_of_platform_driver);
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 59f4ba1b7034..1a7a9fc50ea1 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -248,19 +248,6 @@ config SGI_GRU_DEBUG
         This option enables addition debugging code for the SGI GRU driver. If
         you are unsure, say N.
 
-config DELL_LAPTOP
-        tristate "Dell Laptop Extras (EXPERIMENTAL)"
-        depends on X86
-        depends on DCDBAS
-        depends on EXPERIMENTAL
-        depends on BACKLIGHT_CLASS_DEVICE
-        depends on RFKILL
-        depends on POWER_SUPPLY
-        default n
-        ---help---
-        This driver adds support for rfkill and backlight control to Dell
-        laptops.
-
 config ISL29003
         tristate "Intersil ISL29003 ambient light sensor"
         depends on I2C && SYSFS
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 55ca39dea42e..fc5bf9d2a3f3 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -334,6 +334,8 @@ config EEEPC_LAPTOP
         depends on HOTPLUG_PCI
         select BACKLIGHT_CLASS_DEVICE
         select HWMON
+        select LEDS_CLASS
+        select NEW_LEDS
         ---help---
           This driver supports the Fn-Fx keys on Eee PC laptops.
 
@@ -365,6 +367,18 @@ config ACPI_WMI
           It is safe to enable this driver even if your DSDT doesn't define
           any ACPI-WMI devices.
 
+config MSI_WMI
+        tristate "MSI WMI extras"
+        depends on ACPI_WMI
+        depends on INPUT
+        depends on BACKLIGHT_CLASS_DEVICE
+        select INPUT_SPARSEKMAP
+        help
+         Say Y here if you want to support WMI-based hotkeys on MSI laptops.
+
+         To compile this driver as a module, choose M here: the module will
+         be called msi-wmi.
+
 config ACPI_ASUS
         tristate "ASUS/Medion Laptop Extras (DEPRECATED)"
         depends on ACPI
@@ -435,4 +449,19 @@ config ACPI_TOSHIBA
 
           If you have a legacy free Toshiba laptop (such as the Libretto L1
           series), say Y.
+
+config TOSHIBA_BT_RFKILL
+        tristate "Toshiba Bluetooth RFKill switch support"
+        depends on ACPI
+        ---help---
+          This driver adds support for Bluetooth events for the RFKill
+          switch on modern Toshiba laptops with full ACPI support and
+          an RFKill switch.
+
+          This driver handles RFKill events for the TOS6205 Bluetooth,
+          and re-enables it when the switch is set back to the 'on'
+          position.
+
+          If you have a modern Toshiba laptop with a Bluetooth and an
+          RFKill switch (such as the Portege R500), say Y.
 endif # X86_PLATFORM_DEVICES
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index d1c16210a512..b7474b6a8bf1 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -18,6 +18,8 @@ obj-$(CONFIG_FUJITSU_LAPTOP)	+= fujitsu-laptop.o
 obj-$(CONFIG_PANASONIC_LAPTOP)  += panasonic-laptop.o
 obj-$(CONFIG_INTEL_MENLOW)      += intel_menlow.o
 obj-$(CONFIG_ACPI_WMI)          += wmi.o
+obj-$(CONFIG_MSI_WMI)           += msi-wmi.o
 obj-$(CONFIG_ACPI_ASUS)         += asus_acpi.o
 obj-$(CONFIG_TOPSTAR_LAPTOP)    += topstar-laptop.o
 obj-$(CONFIG_ACPI_TOSHIBA)      += toshiba_acpi.o
+obj-$(CONFIG_TOSHIBA_BT_RFKILL) += toshiba_bluetooth.o
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index be27aa47e810..79b15b9d9cf0 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -52,7 +52,7 @@
  */
 #undef START_IN_KERNEL_MODE
 
-#define DRV_VER "0.5.18"
+#define DRV_VER "0.5.20"
 
 /*
  * According to the Atom N270 datasheet,
@@ -112,12 +112,14 @@ module_param_string(force_product, force_product, 16, 0);
 MODULE_PARM_DESC(force_product, "Force BIOS product and omit BIOS check");
 
 /*
- * cmd_off: to switch the fan completely off / to check if the fan is off
+ * cmd_off: to switch the fan completely off
+ * chk_off: to check if the fan is off
  *      cmd_auto: to set the BIOS in control of the fan. The BIOS regulates then
  *              the fan speed depending on the temperature
  */
 struct fancmd {
         u8 cmd_off;
+        u8 chk_off;
         u8 cmd_auto;
 };
 
@@ -134,32 +136,41 @@ struct bios_settings_t {
 /* Register addresses and values for different BIOS versions */
 static const struct bios_settings_t bios_tbl[] = {
         /* AOA110 */
-        {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x00} },
-        {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
-        {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0x00} },
-        {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0x00} },
-        {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0x00} },
-        {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0x00} },
-        {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x00} },
-        {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x00} },
-        {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x00} },
+        {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x1f, 0x00} },
+        {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x1f, 0x00} },
+        {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
+        {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
+        {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
+        {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
+        {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x21, 0x00} },
+        {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x21, 0x00} },
+        {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x21, 0x00} },
         /* AOA150 */
-        {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x00} },
-        {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        /* Acer 1410 */
+        {"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
         /* special BIOS / other */
-        {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} },
-        {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} },
-        {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} },
-        {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} },
-        {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} },
+        {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x21, 0x00} },
+        {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Gateway         ", "LT31            ", "v1.3103 ", 0x55, 0x58,
+                {0x10, 0x0f, 0x00} },
+        {"Gateway         ", "LT31            ", "v1.3201 ", 0x55, 0x58,
+                {0x10, 0x0f, 0x00} },
+        {"Gateway         ", "LT31            ", "v1.3302 ", 0x55, 0x58,
+                {0x10, 0x0f, 0x00} },
+        {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x21, 0x00} },
+        {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
+        {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x21, 0x00} },
+        {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
         /* pewpew-terminator */
-        {"", "", "", 0, 0, {0, 0} }
+        {"", "", "", 0, 0, {0, 0, 0} }
 };
 
 static const struct bios_settings_t *bios_cfg __read_mostly;
@@ -183,7 +194,7 @@ static int acerhdf_get_fanstate(int *state)
         if (ec_read(bios_cfg->fanreg, &fan))
                 return -EINVAL;
 
-        if (fan != bios_cfg->cmd.cmd_off)
+        if (fan != bios_cfg->cmd.chk_off)
                 *state = ACERHDF_FAN_AUTO;
         else
                 *state = ACERHDF_FAN_OFF;
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index b39d2bb3e75b..61a1c7503658 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -221,6 +221,7 @@ static struct asus_hotk *hotk;
  */
 static const struct acpi_device_id asus_device_ids[] = {
         {"ATK0100", 0},
+        {"ATK0101", 0},
         {"", 0},
 };
 MODULE_DEVICE_TABLE(acpi, asus_device_ids);
@@ -232,6 +233,7 @@ static void asus_hotk_notify(struct acpi_device *device, u32 event);
 static struct acpi_driver asus_hotk_driver = {
         .name = ASUS_HOTK_NAME,
         .class = ASUS_HOTK_CLASS,
+        .owner = THIS_MODULE,
         .ids = asus_device_ids,
         .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
         .ops = {
@@ -293,6 +295,11 @@ struct key_entry {
 enum { KE_KEY, KE_END };
 
 static struct key_entry asus_keymap[] = {
+        {KE_KEY, 0x02, KEY_SCREENLOCK},
+        {KE_KEY, 0x05, KEY_WLAN},
+        {KE_KEY, 0x08, KEY_F13},
+        {KE_KEY, 0x17, KEY_ZOOM},
+        {KE_KEY, 0x1f, KEY_BATTERY},
         {KE_KEY, 0x30, KEY_VOLUMEUP},
         {KE_KEY, 0x31, KEY_VOLUMEDOWN},
         {KE_KEY, 0x32, KEY_MUTE},
@@ -312,8 +319,11 @@ static struct key_entry asus_keymap[] = {
         {KE_KEY, 0x5F, KEY_WLAN},
         {KE_KEY, 0x60, KEY_SWITCHVIDEOMODE},
         {KE_KEY, 0x61, KEY_SWITCHVIDEOMODE},
-        {KE_KEY, 0x6B, BTN_TOUCH}, /* Lock Mouse */
+        {KE_KEY, 0x62, KEY_SWITCHVIDEOMODE},
+        {KE_KEY, 0x63, KEY_SWITCHVIDEOMODE},
+        {KE_KEY, 0x6B, KEY_F13}, /* Lock Touchpad */
         {KE_KEY, 0x82, KEY_CAMERA},
+        {KE_KEY, 0x88, KEY_WLAN },
         {KE_KEY, 0x8A, KEY_PROG1},
         {KE_KEY, 0x95, KEY_MEDIA},
         {KE_KEY, 0x99, KEY_PHONE},
@@ -1240,9 +1250,6 @@ static int asus_hotk_add(struct acpi_device *device)
 {
         int result;
 
-        if (!device)
-                return -EINVAL;
-
         pr_notice("Asus Laptop Support version %s\n",
                ASUS_LAPTOP_VERSION);
 
@@ -1283,8 +1290,8 @@ static int asus_hotk_add(struct acpi_device *device)
         hotk->ledd_status = 0xFFF;
 
         /* Set initial values of light sensor and level */
-        hotk->light_switch = 1; /* Default to light sensor disabled */
-        hotk->light_level = 0;  /* level 5 for sensor sensitivity */
+        hotk->light_switch = 0; /* Default to light sensor disabled */
+        hotk->light_level = 5;  /* level 5 for sensor sensitivity */
 
         if (ls_switch_handle)
                 set_light_sens_switch(hotk->light_switch);
@@ -1306,9 +1313,6 @@ end:
 
 static int asus_hotk_remove(struct acpi_device *device, int type)
 {
-        if (!device || !acpi_driver_data(device))
-                return -EINVAL;
-
         kfree(hotk->name);
         kfree(hotk);
 
@@ -1444,9 +1448,6 @@ static int __init asus_laptop_init(void)
 {
         int result;
 
-        if (acpi_disabled)
-                return -ENODEV;
-
         result = acpi_bus_register_driver(&asus_hotk_driver);
         if (result < 0)
                 return result;
diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index ddf5240ade8c..0c9c53111a22 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -466,6 +466,7 @@ MODULE_DEVICE_TABLE(acpi, asus_device_ids);
 static struct acpi_driver asus_hotk_driver = {
         .name = "asus_acpi",
         .class = ACPI_HOTK_CLASS,
+        .owner = THIS_MODULE,
         .ids = asus_device_ids,
         .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
         .ops = {
@@ -1334,9 +1335,6 @@ static int asus_hotk_add(struct acpi_device *device)
         acpi_status status = AE_OK;
         int result;
 
-        if (!device)
-                return -EINVAL;
-
         printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n",
                ASUS_ACPI_VERSION);
 
@@ -1392,9 +1390,6 @@ end:
 
 static int asus_hotk_remove(struct acpi_device *device, int type)
 {
-        if (!device || !acpi_driver_data(device))
-                return -EINVAL;
-
         asus_hotk_remove_fs(device);
 
         kfree(hotk);
@@ -1422,21 +1417,17 @@ static int __init asus_acpi_init(void)
 {
         int result;
 
-        if (acpi_disabled)
-                return -ENODEV;
+        result = acpi_bus_register_driver(&asus_hotk_driver);
+        if (result < 0)
+                return result;
 
         asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir);
         if (!asus_proc_dir) {
                 printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n");
+                acpi_bus_unregister_driver(&asus_hotk_driver);
                 return -ENODEV;
         }
 
-        result = acpi_bus_register_driver(&asus_hotk_driver);
-        if (result < 0) {
-                remove_proc_entry(PROC_ASUS, acpi_root_dir);
-                return result;
-        }
-
         /*
          * This is a bit of a kludge.  We only want this module loaded
          * for ASUS systems, but there's currently no way to probe the
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 74909c4aaeea..3780994dc8f2 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -58,6 +58,14 @@ static int da_command_code;
 static int da_num_tokens;
 static struct calling_interface_token *da_tokens;
 
+static struct platform_driver platform_driver = {
+        .driver = {
+                .name = "dell-laptop",
+                .owner = THIS_MODULE,
+        }
+};
+
+static struct platform_device *platform_device;
 static struct backlight_device *dell_backlight_device;
 static struct rfkill *wifi_rfkill;
 static struct rfkill *bluetooth_rfkill;
@@ -74,7 +82,7 @@ static const struct dmi_system_id __initdata dell_device_table[] = {
         { }
 };
 
-static void parse_da_table(const struct dmi_header *dm)
+static void __init parse_da_table(const struct dmi_header *dm)
 {
         /* Final token is a terminator, so we don't want to copy it */
         int tokens = (dm->length-11)/sizeof(struct calling_interface_token)-1;
@@ -103,7 +111,7 @@ static void parse_da_table(const struct dmi_header *dm)
         da_num_tokens += tokens;
 }
 
-static void find_tokens(const struct dmi_header *dm, void *dummy)
+static void __init find_tokens(const struct dmi_header *dm, void *dummy)
 {
         switch (dm->type) {
         case 0xd4: /* Indexed IO */
@@ -197,8 +205,8 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
         dell_send_request(&buffer, 17, 11);
         status = buffer.output[1];
 
-        if (status & BIT(bit))
-                rfkill_set_hw_state(rfkill, !!(status & BIT(16)));
+        rfkill_set_sw_state(rfkill, !!(status & BIT(bit)));
+        rfkill_set_hw_state(rfkill, !(status & BIT(16)));
 }
 
 static const struct rfkill_ops dell_rfkill_ops = {
@@ -206,7 +214,7 @@ static const struct rfkill_ops dell_rfkill_ops = {
         .query = dell_rfkill_query,
 };
 
-static int dell_setup_rfkill(void)
+static int __init dell_setup_rfkill(void)
 {
         struct calling_interface_buffer buffer;
         int status;
@@ -217,7 +225,8 @@ static int dell_setup_rfkill(void)
         status = buffer.output[1];
 
         if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) {
-                wifi_rfkill = rfkill_alloc("dell-wifi", NULL, RFKILL_TYPE_WLAN,
+                wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev,
+                                           RFKILL_TYPE_WLAN,
                                            &dell_rfkill_ops, (void *) 1);
                 if (!wifi_rfkill) {
                         ret = -ENOMEM;
@@ -229,7 +238,8 @@ static int dell_setup_rfkill(void)
         }
 
         if ((status & (1<<3|1<<9)) == (1<<3|1<<9)) {
-                bluetooth_rfkill = rfkill_alloc("dell-bluetooth", NULL,
+                bluetooth_rfkill = rfkill_alloc("dell-bluetooth",
+                                                &platform_device->dev,
                                                 RFKILL_TYPE_BLUETOOTH,
                                                 &dell_rfkill_ops, (void *) 2);
                 if (!bluetooth_rfkill) {
@@ -242,7 +252,9 @@ static int dell_setup_rfkill(void)
         }
 
         if ((status & (1<<4|1<<10)) == (1<<4|1<<10)) {
-                wwan_rfkill = rfkill_alloc("dell-wwan", NULL, RFKILL_TYPE_WWAN,
+                wwan_rfkill = rfkill_alloc("dell-wwan",
+                                           &platform_device->dev,
+                                           RFKILL_TYPE_WWAN,
                                            &dell_rfkill_ops, (void *) 3);
                 if (!wwan_rfkill) {
                         ret = -ENOMEM;
@@ -268,6 +280,22 @@ err_wifi:
         return ret;
 }
 
+static void dell_cleanup_rfkill(void)
+{
+        if (wifi_rfkill) {
+                rfkill_unregister(wifi_rfkill);
+                rfkill_destroy(wifi_rfkill);
+        }
+        if (bluetooth_rfkill) {
+                rfkill_unregister(bluetooth_rfkill);
+                rfkill_destroy(bluetooth_rfkill);
+        }
+        if (wwan_rfkill) {
+                rfkill_unregister(wwan_rfkill);
+                rfkill_destroy(wwan_rfkill);
+        }
+}
+
 static int dell_send_intensity(struct backlight_device *bd)
 {
         struct calling_interface_buffer buffer;
@@ -326,11 +354,23 @@ static int __init dell_init(void)
                 return -ENODEV;
         }
 
+        ret = platform_driver_register(&platform_driver);
+        if (ret)
+                goto fail_platform_driver;
+        platform_device = platform_device_alloc("dell-laptop", -1);
+        if (!platform_device) {
+                ret = -ENOMEM;
+                goto fail_platform_device1;
+        }
+        ret = platform_device_add(platform_device);
+        if (ret)
+                goto fail_platform_device2;
+
         ret = dell_setup_rfkill();
 
         if (ret) {
                 printk(KERN_WARNING "dell-laptop: Unable to setup rfkill\n");
-                goto out;
+                goto fail_rfkill;
         }
 
 #ifdef CONFIG_ACPI
@@ -352,13 +392,13 @@ static int __init dell_init(void)
         if (max_intensity) {
                 dell_backlight_device = backlight_device_register(
                         "dell_backlight",
-                        NULL, NULL,
+                        &platform_device->dev, NULL,
                         &dell_ops);
 
                 if (IS_ERR(dell_backlight_device)) {
                         ret = PTR_ERR(dell_backlight_device);
                         dell_backlight_device = NULL;
-                        goto out;
+                        goto fail_backlight;
                 }
 
                 dell_backlight_device->props.max_brightness = max_intensity;
@@ -368,13 +408,16 @@ static int __init dell_init(void)
         }
 
         return 0;
-out:
-        if (wifi_rfkill)
-                rfkill_unregister(wifi_rfkill);
-        if (bluetooth_rfkill)
-                rfkill_unregister(bluetooth_rfkill);
-        if (wwan_rfkill)
-                rfkill_unregister(wwan_rfkill);
+
+fail_backlight:
+        dell_cleanup_rfkill();
+fail_rfkill:
+        platform_device_del(platform_device);
+fail_platform_device2:
+        platform_device_put(platform_device);
+fail_platform_device1:
+        platform_driver_unregister(&platform_driver);
+fail_platform_driver:
         kfree(da_tokens);
         return ret;
 }
@@ -382,12 +425,7 @@ out:
 static void __exit dell_exit(void)
 {
         backlight_device_unregister(dell_backlight_device);
-        if (wifi_rfkill)
-                rfkill_unregister(wifi_rfkill);
-        if (bluetooth_rfkill)
-                rfkill_unregister(bluetooth_rfkill);
-        if (wwan_rfkill)
-                rfkill_unregister(wwan_rfkill);
+        dell_cleanup_rfkill();
 }
 
 module_init(dell_init);
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 0f900cc9fa7a..67f3fe71c509 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -31,6 +31,7 @@
 #include <acpi/acpi_drivers.h>
 #include <linux/acpi.h>
 #include <linux/string.h>
+#include <linux/dmi.h>
 
 MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
 MODULE_DESCRIPTION("Dell laptop WMI hotkeys driver");
@@ -38,6 +39,8 @@ MODULE_LICENSE("GPL");
 
 #define DELL_EVENT_GUID "9DBB5994-A997-11DA-B012-B622A1EF5492"
 
+static int acpi_video;
+
 MODULE_ALIAS("wmi:"DELL_EVENT_GUID);
 
 struct key_entry {
@@ -54,7 +57,7 @@ enum { KE_KEY, KE_SW, KE_IGNORE, KE_END };
  * via the keyboard controller so should not be sent again.
  */
 
-static struct key_entry dell_wmi_keymap[] = {
+static struct key_entry dell_legacy_wmi_keymap[] = {
         {KE_KEY, 0xe045, KEY_PROG1},
         {KE_KEY, 0xe009, KEY_EJECTCD},
 
@@ -72,7 +75,7 @@ static struct key_entry dell_wmi_keymap[] = {
 
         /* The next device is at offset 6, the active devices are at
            offset 8 and the attached devices at offset 10 */
-        {KE_KEY, 0xe00b, KEY_DISPLAYTOGGLE},
+        {KE_KEY, 0xe00b, KEY_SWITCHVIDEOMODE},
 
         {KE_IGNORE, 0xe00c, KEY_KBDILLUMTOGGLE},
 
@@ -96,6 +99,47 @@ static struct key_entry dell_wmi_keymap[] = {
         {KE_END, 0}
 };
 
+static bool dell_new_hk_type;
+
+struct dell_new_keymap_entry {
+        u16 scancode;
+        u16 keycode;
+};
+
+struct dell_hotkey_table {
+        struct dmi_header header;
+        struct dell_new_keymap_entry keymap[];
+
+};
+
+static struct key_entry *dell_new_wmi_keymap;
+
+static u16 bios_to_linux_keycode[256] = {
+
+        KEY_MEDIA,      KEY_NEXTSONG,   KEY_PLAYPAUSE, KEY_PREVIOUSSONG,
+        KEY_STOPCD,     KEY_UNKNOWN,    KEY_UNKNOWN,    KEY_UNKNOWN,
+        KEY_WWW,        KEY_UNKNOWN,    KEY_VOLUMEDOWN, KEY_MUTE,
+        KEY_VOLUMEUP,   KEY_UNKNOWN,    KEY_BATTERY,    KEY_EJECTCD,
+        KEY_UNKNOWN,    KEY_SLEEP,      KEY_PROG1, KEY_BRIGHTNESSDOWN,
+        KEY_BRIGHTNESSUP,       KEY_UNKNOWN,    KEY_KBDILLUMTOGGLE,
+        KEY_UNKNOWN,    KEY_SWITCHVIDEOMODE,    KEY_UNKNOWN, KEY_UNKNOWN,
+        KEY_SWITCHVIDEOMODE,    KEY_UNKNOWN,    KEY_UNKNOWN, KEY_PROG2,
+        KEY_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        KEY_PROG3
+};
+
+
+static struct key_entry *dell_wmi_keymap = dell_legacy_wmi_keymap;
+
 static struct input_dev *dell_wmi_input_dev;
 
 static struct key_entry *dell_wmi_get_entry_by_scancode(int code)
@@ -164,24 +208,78 @@ static void dell_wmi_notify(u32 value, void *context)
         obj = (union acpi_object *)response.pointer;
 
         if (obj && obj->type == ACPI_TYPE_BUFFER) {
-                int *buffer = (int *)obj->buffer.pointer;
-                /*
-                 *  The upper bytes of the event may contain
-                 *  additional information, so mask them off for the
-                 *  scancode lookup
-                 */
-                key = dell_wmi_get_entry_by_scancode(buffer[1] & 0xFFFF);
-                if (key) {
+                int reported_key;
+                u16 *buffer_entry = (u16 *)obj->buffer.pointer;
+                if (dell_new_hk_type && (buffer_entry[1] != 0x10)) {
+                        printk(KERN_INFO "dell-wmi: Received unknown WMI event"
+                                         " (0x%x)\n", buffer_entry[1]);
+                        return;
+                }
+
+                if (dell_new_hk_type)
+                        reported_key = (int)buffer_entry[2];
+                else
+                        reported_key = (int)buffer_entry[1] & 0xffff;
+
+                key = dell_wmi_get_entry_by_scancode(reported_key);
+
+                if (!key) {
+                        printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n",
+                                reported_key);
+                } else if ((key->keycode == KEY_BRIGHTNESSUP ||
+                            key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video) {
+                        /* Don't report brightness notifications that will also
+                         * come via ACPI */
+                        return;
+                } else {
                         input_report_key(dell_wmi_input_dev, key->keycode, 1);
                         input_sync(dell_wmi_input_dev);
                         input_report_key(dell_wmi_input_dev, key->keycode, 0);
                         input_sync(dell_wmi_input_dev);
-                } else if (buffer[1] & 0xFFFF)
-                        printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n",
-                               buffer[1] & 0xFFFF);
+                }
         }
 }
 
+
+static void setup_new_hk_map(const struct dmi_header *dm)
+{
+
+        int i;
+        int hotkey_num = (dm->length-4)/sizeof(struct dell_new_keymap_entry);
+        struct dell_hotkey_table *table =
+                container_of(dm, struct dell_hotkey_table, header);
+
+        dell_new_wmi_keymap = kzalloc((hotkey_num+1) *
+                                      sizeof(struct key_entry), GFP_KERNEL);
+
+        for (i = 0; i < hotkey_num; i++) {
+                dell_new_wmi_keymap[i].type = KE_KEY;
+                dell_new_wmi_keymap[i].code = table->keymap[i].scancode;
+                dell_new_wmi_keymap[i].keycode =
+                        (table->keymap[i].keycode > 255) ? 0 :
+                        bios_to_linux_keycode[table->keymap[i].keycode];
+        }
+
+        dell_new_wmi_keymap[i].type = KE_END;
+        dell_new_wmi_keymap[i].code = 0;
+        dell_new_wmi_keymap[i].keycode = 0;
+
+        dell_wmi_keymap = dell_new_wmi_keymap;
+
+}
+
+
+static void find_hk_type(const struct dmi_header *dm, void *dummy)
+{
+
+        if ((dm->type == 0xb2) && (dm->length > 6)) {
+                dell_new_hk_type = true;
+                setup_new_hk_map(dm);
+        }
+
+}
+
+
 static int __init dell_wmi_input_setup(void)
 {
         struct key_entry *key;
@@ -226,6 +324,9 @@ static int __init dell_wmi_init(void)
         int err;
 
         if (wmi_has_guid(DELL_EVENT_GUID)) {
+
+                dmi_walk(find_hk_type, NULL);
+
                 err = dell_wmi_input_setup();
 
                 if (err)
@@ -240,6 +341,8 @@ static int __init dell_wmi_init(void)
                         return err;
                 }
 
+                acpi_video = acpi_video_backlight_support();
+
         } else
                 printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n");
 
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index e647a856b9bf..5838c69b2fb3 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1,5 +1,5 @@
 /*
- *  eepc-laptop.c - Asus Eee PC extras
+ *  eeepc-laptop.c - Asus Eee PC extras
  *
  *  Based on asus_acpi.c as patched for the Eee PC by Asus:
  *  ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar
@@ -34,20 +34,23 @@
 #include <linux/rfkill.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
+#include <linux/leds.h>
 
 #define EEEPC_LAPTOP_VERSION    "0.1"
+#define EEEPC_LAPTOP_NAME       "Eee PC Hotkey Driver"
+#define EEEPC_LAPTOP_FILE       "eeepc"
 
-#define EEEPC_HOTK_NAME         "Eee PC Hotkey Driver"
-#define EEEPC_HOTK_FILE         "eeepc"
-#define EEEPC_HOTK_CLASS        "hotkey"
-#define EEEPC_HOTK_DEVICE_NAME  "Hotkey"
-#define EEEPC_HOTK_HID          "ASUS010"
+#define EEEPC_ACPI_CLASS        "hotkey"
+#define EEEPC_ACPI_DEVICE_NAME  "Hotkey"
+#define EEEPC_ACPI_HID          "ASUS010"
 
+MODULE_AUTHOR("Corentin Chary, Eric Cooper");
+MODULE_DESCRIPTION(EEEPC_LAPTOP_NAME);
+MODULE_LICENSE("GPL");
 
 /*
  * Definitions for Asus EeePC
  */
-#define NOTIFY_WLAN_ON  0x10
 #define NOTIFY_BRN_MIN  0x20
 #define NOTIFY_BRN_MAX  0x2f
 
@@ -117,58 +120,6 @@ static const char *cm_setv[] = {
         NULL, NULL, "PBPS", "TPDS"
 };
 
-#define EEEPC_EC        "\\_SB.PCI0.SBRG.EC0."
-
-#define EEEPC_EC_FAN_PWM        EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */
-#define EEEPC_EC_SC02           0x63
-#define EEEPC_EC_FAN_HRPM       EEEPC_EC "SC05" /* High byte, fan speed (RPM) */
-#define EEEPC_EC_FAN_LRPM       EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */
-#define EEEPC_EC_FAN_CTRL       EEEPC_EC "SFB3" /* Byte containing SF25  */
-#define EEEPC_EC_SFB3           0xD3
-
-/*
- * This is the main structure, we can use it to store useful information
- * about the hotk device
- */
-struct eeepc_hotk {
-        struct acpi_device *device;     /* the device we are in */
-        acpi_handle handle;             /* the handle of the hotk device */
-        u32 cm_supported;               /* the control methods supported
-                                           by this BIOS */
-        uint init_flag;                 /* Init flags */
-        u16 event_count[128];           /* count for each event */
-        struct input_dev *inputdev;
-        u16 *keycode_map;
-        struct rfkill *wlan_rfkill;
-        struct rfkill *bluetooth_rfkill;
-        struct rfkill *wwan3g_rfkill;
-        struct rfkill *wimax_rfkill;
-        struct hotplug_slot *hotplug_slot;
-        struct mutex hotplug_lock;
-};
-
-/* The actual device the driver binds to */
-static struct eeepc_hotk *ehotk;
-
-/* Platform device/driver */
-static int eeepc_hotk_thaw(struct device *device);
-static int eeepc_hotk_restore(struct device *device);
-
-static const struct dev_pm_ops eeepc_pm_ops = {
-        .thaw = eeepc_hotk_thaw,
-        .restore = eeepc_hotk_restore,
-};
-
-static struct platform_driver platform_driver = {
-        .driver = {
-                .name = EEEPC_HOTK_FILE,
-                .owner = THIS_MODULE,
-                .pm = &eeepc_pm_ops,
-        }
-};
-
-static struct platform_device *platform_device;
-
 struct key_entry {
         char type;
         u8 code;
@@ -177,7 +128,7 @@ struct key_entry {
 
 enum { KE_KEY, KE_END };
 
-static struct key_entry eeepc_keymap[] = {
+static const struct key_entry eeepc_keymap[] = {
         /* Sleep already handled via generic ACPI code */
         {KE_KEY, 0x10, KEY_WLAN },
         {KE_KEY, 0x11, KEY_WLAN },
@@ -185,77 +136,56 @@ static struct key_entry eeepc_keymap[] = {
         {KE_KEY, 0x13, KEY_MUTE },
         {KE_KEY, 0x14, KEY_VOLUMEDOWN },
         {KE_KEY, 0x15, KEY_VOLUMEUP },
+        {KE_KEY, 0x16, KEY_DISPLAY_OFF },
         {KE_KEY, 0x1a, KEY_COFFEE },
         {KE_KEY, 0x1b, KEY_ZOOM },
         {KE_KEY, 0x1c, KEY_PROG2 },
         {KE_KEY, 0x1d, KEY_PROG3 },
-        {KE_KEY, NOTIFY_BRN_MIN,     KEY_BRIGHTNESSDOWN },
-        {KE_KEY, NOTIFY_BRN_MIN + 2, KEY_BRIGHTNESSUP },
+        {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN },
+        {KE_KEY, NOTIFY_BRN_MAX, KEY_BRIGHTNESSUP },
         {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE },
         {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE },
         {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE },
+        {KE_KEY, 0x37, KEY_F13 }, /* Disable Touchpad */
+        {KE_KEY, 0x38, KEY_F14 },
         {KE_END, 0},
 };
 
+
 /*
- * The hotkey driver declaration
+ * This is the main structure, we can use it to store useful information
  */
-static int eeepc_hotk_add(struct acpi_device *device);
-static int eeepc_hotk_remove(struct acpi_device *device, int type);
-static void eeepc_hotk_notify(struct acpi_device *device, u32 event);
-
-static const struct acpi_device_id eeepc_device_ids[] = {
-        {EEEPC_HOTK_HID, 0},
-        {"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, eeepc_device_ids);
-
-static struct acpi_driver eeepc_hotk_driver = {
-        .name = EEEPC_HOTK_NAME,
-        .class = EEEPC_HOTK_CLASS,
-        .ids = eeepc_device_ids,
-        .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
-        .ops = {
-                .add = eeepc_hotk_add,
-                .remove = eeepc_hotk_remove,
-                .notify = eeepc_hotk_notify,
-        },
-};
+struct eeepc_laptop {
+        acpi_handle handle;             /* the handle of the acpi device */
+        u32 cm_supported;               /* the control methods supported
+                                           by this BIOS */
+        u16 event_count[128];           /* count for each event */
 
-/* PCI hotplug ops */
-static int eeepc_get_adapter_status(struct hotplug_slot *slot, u8 *value);
+        struct platform_device *platform_device;
+        struct device *hwmon_device;
+        struct backlight_device *backlight_device;
 
-static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
-        .owner = THIS_MODULE,
-        .get_adapter_status = eeepc_get_adapter_status,
-        .get_power_status = eeepc_get_adapter_status,
-};
+        struct input_dev *inputdev;
+        struct key_entry *keymap;
 
-/* The backlight device /sys/class/backlight */
-static struct backlight_device *eeepc_backlight_device;
+        struct rfkill *wlan_rfkill;
+        struct rfkill *bluetooth_rfkill;
+        struct rfkill *wwan3g_rfkill;
+        struct rfkill *wimax_rfkill;
 
-/* The hwmon device */
-static struct device *eeepc_hwmon_device;
+        struct hotplug_slot *hotplug_slot;
+        struct mutex hotplug_lock;
 
-/*
- * The backlight class declaration
- */
-static int read_brightness(struct backlight_device *bd);
-static int update_bl_status(struct backlight_device *bd);
-static struct backlight_ops eeepcbl_ops = {
-        .get_brightness = read_brightness,
-        .update_status = update_bl_status,
+        struct led_classdev tpd_led;
+        int tpd_led_wk;
+        struct workqueue_struct *led_workqueue;
+        struct work_struct tpd_led_work;
 };
 
-MODULE_AUTHOR("Corentin Chary, Eric Cooper");
-MODULE_DESCRIPTION(EEEPC_HOTK_NAME);
-MODULE_LICENSE("GPL");
-
 /*
  * ACPI Helpers
  */
-static int write_acpi_int(acpi_handle handle, const char *method, int val,
-                          struct acpi_buffer *output)
+static int write_acpi_int(acpi_handle handle, const char *method, int val)
 {
         struct acpi_object_list params;
         union acpi_object in_obj;
@@ -266,7 +196,7 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
         in_obj.type = ACPI_TYPE_INTEGER;
         in_obj.integer.value = val;
 
-        status = acpi_evaluate_object(handle, (char *)method, &params, output);
+        status = acpi_evaluate_object(handle, (char *)method, &params, NULL);
         return (status == AE_OK ? 0 : -1);
 }
 
@@ -285,81 +215,56 @@ static int read_acpi_int(acpi_handle handle, const char *method, int *val)
         }
 }
 
-static int set_acpi(int cm, int value)
+static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value)
 {
-        if (ehotk->cm_supported & (0x1 << cm)) {
-                const char *method = cm_setv[cm];
-                if (method == NULL)
-                        return -ENODEV;
-                if (write_acpi_int(ehotk->handle, method, value, NULL))
-                        pr_warning("Error writing %s\n", method);
-        }
-        return 0;
-}
+        const char *method = cm_setv[cm];
 
-static int get_acpi(int cm)
-{
-        int value = -ENODEV;
-        if ((ehotk->cm_supported & (0x1 << cm))) {
-                const char *method = cm_getv[cm];
-                if (method == NULL)
-                        return -ENODEV;
-                if (read_acpi_int(ehotk->handle, method, &value))
-                        pr_warning("Error reading %s\n", method);
-        }
-        return value;
-}
-
-/*
- * Backlight
- */
-static int read_brightness(struct backlight_device *bd)
-{
-        return get_acpi(CM_ASL_PANELBRIGHT);
-}
+        if (method == NULL)
+                return -ENODEV;
+        if ((eeepc->cm_supported & (0x1 << cm)) == 0)
+                return -ENODEV;
 
-static int set_brightness(struct backlight_device *bd, int value)
-{
-        value = max(0, min(15, value));
-        return set_acpi(CM_ASL_PANELBRIGHT, value);
+        if (write_acpi_int(eeepc->handle, method, value))
+                pr_warning("Error writing %s\n", method);
+        return 0;
 }
 
-static int update_bl_status(struct backlight_device *bd)
+static int get_acpi(struct eeepc_laptop *eeepc, int cm)
 {
-        return set_brightness(bd, bd->props.brightness);
-}
+        const char *method = cm_getv[cm];
+        int value;
 
-/*
- * Rfkill helpers
- */
+        if (method == NULL)
+                return -ENODEV;
+        if ((eeepc->cm_supported & (0x1 << cm)) == 0)
+                return -ENODEV;
 
-static bool eeepc_wlan_rfkill_blocked(void)
-{
-        if (get_acpi(CM_ASL_WLAN) == 1)
-                return false;
-        return true;
+        if (read_acpi_int(eeepc->handle, method, &value))
+                pr_warning("Error reading %s\n", method);
+        return value;
 }
 
-static int eeepc_rfkill_set(void *data, bool blocked)
+static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm,
+                              acpi_handle *handle)
 {
-        unsigned long asl = (unsigned long)data;
-        return set_acpi(asl, !blocked);
-}
+        const char *method = cm_setv[cm];
+        acpi_status status;
 
-static const struct rfkill_ops eeepc_rfkill_ops = {
-        .set_block = eeepc_rfkill_set,
-};
+        if (method == NULL)
+                return -ENODEV;
+        if ((eeepc->cm_supported & (0x1 << cm)) == 0)
+                return -ENODEV;
 
-static void __devinit eeepc_enable_camera(void)
-{
-        /*
-         * If the following call to set_acpi() fails, it's because there's no
-         * camera so we can ignore the error.
-         */
-        if (get_acpi(CM_ASL_CAMERA) == 0)
-                set_acpi(CM_ASL_CAMERA, 1);
+        status = acpi_get_handle(eeepc->handle, (char *)method,
+                                 handle);
+        if (status != AE_OK) {
+                pr_warning("Error finding %s\n", method);
+                return -ENODEV;
+        }
+        return 0;
 }
 
+
 /*
  * Sys helpers
  */
@@ -372,60 +277,63 @@ static int parse_arg(const char *buf, unsigned long count, int *val)
         return count;
 }
 
-static ssize_t store_sys_acpi(int cm, const char *buf, size_t count)
+static ssize_t store_sys_acpi(struct device *dev, int cm,
+                              const char *buf, size_t count)
 {
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
         int rv, value;
 
         rv = parse_arg(buf, count, &value);
         if (rv > 0)
-                value = set_acpi(cm, value);
+                value = set_acpi(eeepc, cm, value);
         if (value < 0)
-                return value;
+                return -EIO;
         return rv;
 }
 
-static ssize_t show_sys_acpi(int cm, char *buf)
+static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf)
 {
-        int value = get_acpi(cm);
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
+        int value = get_acpi(eeepc, cm);
 
         if (value < 0)
-                return value;
+                return -EIO;
         return sprintf(buf, "%d\n", value);
 }
 
-#define EEEPC_CREATE_DEVICE_ATTR(_name, _cm)                            \
+#define EEEPC_CREATE_DEVICE_ATTR(_name, _mode, _cm)                     \
         static ssize_t show_##_name(struct device *dev,                 \
                                     struct device_attribute *attr,      \
                                     char *buf)                          \
         {                                                               \
-                return show_sys_acpi(_cm, buf);                         \
+                return show_sys_acpi(dev, _cm, buf);                    \
         }                                                               \
         static ssize_t store_##_name(struct device *dev,                \
                                      struct device_attribute *attr,     \
                                      const char *buf, size_t count)     \
         {                                                               \
-                return store_sys_acpi(_cm, buf, count);                 \
+                return store_sys_acpi(dev, _cm, buf, count);            \
         }                                                               \
         static struct device_attribute dev_attr_##_name = {             \
                 .attr = {                                               \
                         .name = __stringify(_name),                     \
-                        .mode = 0644 },                                 \
+                        .mode = _mode },                                \
                 .show   = show_##_name,                                 \
                 .store  = store_##_name,                                \
         }
 
-EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA);
-EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER);
-EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH);
+EEEPC_CREATE_DEVICE_ATTR(camera, 0644, CM_ASL_CAMERA);
+EEEPC_CREATE_DEVICE_ATTR(cardr, 0644, CM_ASL_CARDREADER);
+EEEPC_CREATE_DEVICE_ATTR(disp, 0200, CM_ASL_DISPLAYSWITCH);
 
 struct eeepc_cpufv {
         int num;
         int cur;
 };
 
-static int get_cpufv(struct eeepc_cpufv *c)
+static int get_cpufv(struct eeepc_laptop *eeepc, struct eeepc_cpufv *c)
 {
-        c->cur = get_acpi(CM_ASL_CPUFV);
+        c->cur = get_acpi(eeepc, CM_ASL_CPUFV);
         c->num = (c->cur >> 8) & 0xff;
         c->cur &= 0xff;
         if (c->cur < 0 || c->num <= 0 || c->num > 12)
@@ -437,11 +345,12 @@ static ssize_t show_available_cpufv(struct device *dev,
                                     struct device_attribute *attr,
                                     char *buf)
 {
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
         struct eeepc_cpufv c;
         int i;
         ssize_t len = 0;
 
-        if (get_cpufv(&c))
+        if (get_cpufv(eeepc, &c))
                 return -ENODEV;
         for (i = 0; i < c.num; i++)
                 len += sprintf(buf + len, "%d ", i);
@@ -453,9 +362,10 @@ static ssize_t show_cpufv(struct device *dev,
                           struct device_attribute *attr,
                           char *buf)
 {
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
         struct eeepc_cpufv c;
 
-        if (get_cpufv(&c))
+        if (get_cpufv(eeepc, &c))
                 return -ENODEV;
         return sprintf(buf, "%#x\n", (c.num << 8) | c.cur);
 }
@@ -464,17 +374,18 @@ static ssize_t store_cpufv(struct device *dev,
                            struct device_attribute *attr,
                            const char *buf, size_t count)
 {
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
         struct eeepc_cpufv c;
         int rv, value;
 
-        if (get_cpufv(&c))
+        if (get_cpufv(eeepc, &c))
                 return -ENODEV;
         rv = parse_arg(buf, count, &value);
         if (rv < 0)
                 return rv;
         if (!rv || value < 0 || value >= c.num)
                 return -EINVAL;
-        set_acpi(CM_ASL_CPUFV, value);
+        set_acpi(eeepc, CM_ASL_CPUFV, value);
         return rv;
 }
 
@@ -506,156 +417,125 @@ static struct attribute_group platform_attribute_group = {
         .attrs = platform_attributes
 };
 
-/*
- * Hotkey functions
- */
-static struct key_entry *eepc_get_entry_by_scancode(int code)
+static int eeepc_platform_init(struct eeepc_laptop *eeepc)
 {
-        struct key_entry *key;
-
-        for (key = eeepc_keymap; key->type != KE_END; key++)
-                if (code == key->code)
-                        return key;
+        int result;
 
-        return NULL;
-}
+        eeepc->platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1);
+        if (!eeepc->platform_device)
+                return -ENOMEM;
+        platform_set_drvdata(eeepc->platform_device, eeepc);
 
-static struct key_entry *eepc_get_entry_by_keycode(int code)
-{
-        struct key_entry *key;
+        result = platform_device_add(eeepc->platform_device);
+        if (result)
+                goto fail_platform_device;
 
-        for (key = eeepc_keymap; key->type != KE_END; key++)
-                if (code == key->keycode && key->type == KE_KEY)
-                        return key;
+        result = sysfs_create_group(&eeepc->platform_device->dev.kobj,
+                                    &platform_attribute_group);
+        if (result)
+                goto fail_sysfs;
+        return 0;
 
-        return NULL;
+fail_sysfs:
+        platform_device_del(eeepc->platform_device);
+fail_platform_device:
+        platform_device_put(eeepc->platform_device);
+        return result;
 }
 
-static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+static void eeepc_platform_exit(struct eeepc_laptop *eeepc)
 {
-        struct key_entry *key = eepc_get_entry_by_scancode(scancode);
+        sysfs_remove_group(&eeepc->platform_device->dev.kobj,
+                           &platform_attribute_group);
+        platform_device_unregister(eeepc->platform_device);
+}
 
-        if (key && key->type == KE_KEY) {
-                *keycode = key->keycode;
-                return 0;
-        }
+/*
+ * LEDs
+ */
+/*
+ * These functions actually update the LED's, and are called from a
+ * workqueue. By doing this as separate work rather than when the LED
+ * subsystem asks, we avoid messing with the Asus ACPI stuff during a
+ * potentially bad time, such as a timer interrupt.
+ */
+static void tpd_led_update(struct work_struct *work)
+ {
+        struct eeepc_laptop *eeepc;
 
-        return -EINVAL;
+        eeepc = container_of(work, struct eeepc_laptop, tpd_led_work);
+
+        set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk);
 }
 
-static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
+static void tpd_led_set(struct led_classdev *led_cdev,
+                        enum led_brightness value)
 {
-        struct key_entry *key;
-        int old_keycode;
+        struct eeepc_laptop *eeepc;
 
-        if (keycode < 0 || keycode > KEY_MAX)
-                return -EINVAL;
+        eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led);
 
-        key = eepc_get_entry_by_scancode(scancode);
-        if (key && key->type == KE_KEY) {
-                old_keycode = key->keycode;
-                key->keycode = keycode;
-                set_bit(keycode, dev->keybit);
-                if (!eepc_get_entry_by_keycode(old_keycode))
-                        clear_bit(old_keycode, dev->keybit);
-                return 0;
-        }
-
-        return -EINVAL;
+        eeepc->tpd_led_wk = (value > 0) ? 1 : 0;
+        queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
 }
 
-static void cmsg_quirk(int cm, const char *name)
+static int eeepc_led_init(struct eeepc_laptop *eeepc)
 {
-        int dummy;
+        int rv;
 
-        /* Some BIOSes do not report cm although it is avaliable.
-           Check if cm_getv[cm] works and, if yes, assume cm should be set. */
-        if (!(ehotk->cm_supported & (1 << cm))
-            && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) {
-                pr_info("%s (%x) not reported by BIOS,"
-                        " enabling anyway\n", name, 1 << cm);
-                ehotk->cm_supported |= 1 << cm;
-        }
-}
+        if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV)
+                return 0;
 
-static void cmsg_quirks(void)
-{
-        cmsg_quirk(CM_ASL_LID, "LID");
-        cmsg_quirk(CM_ASL_TYPE, "TYPE");
-        cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER");
-        cmsg_quirk(CM_ASL_TPD, "TPD");
-}
+        eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
+        if (!eeepc->led_workqueue)
+                return -ENOMEM;
+        INIT_WORK(&eeepc->tpd_led_work, tpd_led_update);
 
-static int eeepc_hotk_check(void)
-{
-        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-        int result;
+        eeepc->tpd_led.name = "eeepc::touchpad";
+        eeepc->tpd_led.brightness_set = tpd_led_set;
+        eeepc->tpd_led.max_brightness = 1;
 
-        result = acpi_bus_get_status(ehotk->device);
-        if (result)
-                return result;
-        if (ehotk->device->status.present) {
-                if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag,
-                                    &buffer)) {
-                        pr_err("Hotkey initialization failed\n");
-                        return -ENODEV;
-                } else {
-                        pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag);
-                }
-                /* get control methods supported */
-                if (read_acpi_int(ehotk->handle, "CMSG"
-                                   , &ehotk->cm_supported)) {
-                        pr_err("Get control methods supported failed\n");
-                        return -ENODEV;
-                } else {
-                        cmsg_quirks();
-                        pr_info("Get control methods supported: 0x%x\n",
-                                ehotk->cm_supported);
-                }
-        } else {
-                pr_err("Hotkey device not present, aborting\n");
-                return -EINVAL;
+        rv = led_classdev_register(&eeepc->platform_device->dev,
+                                   &eeepc->tpd_led);
+        if (rv) {
+                destroy_workqueue(eeepc->led_workqueue);
+                return rv;
         }
+
         return 0;
 }
 
-static int notify_brn(void)
+static void eeepc_led_exit(struct eeepc_laptop *eeepc)
 {
-        /* returns the *previous* brightness, or -1 */
-        struct backlight_device *bd = eeepc_backlight_device;
-        if (bd) {
-                int old = bd->props.brightness;
-                backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
-                return old;
-        }
-        return -1;
+        if (eeepc->tpd_led.dev)
+                led_classdev_unregister(&eeepc->tpd_led);
+        if (eeepc->led_workqueue)
+                destroy_workqueue(eeepc->led_workqueue);
 }
 
-static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
-                                    u8 *value)
-{
-        int val = get_acpi(CM_ASL_WLAN);
 
-        if (val == 1 || val == 0)
-                *value = val;
-        else
-                return -EINVAL;
-
-        return 0;
+/*
+ * PCI hotplug (for wlan rfkill)
+ */
+static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc)
+{
+        if (get_acpi(eeepc, CM_ASL_WLAN) == 1)
+                return false;
+        return true;
 }
 
-static void eeepc_rfkill_hotplug(void)
+static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc)
 {
         struct pci_dev *dev;
         struct pci_bus *bus;
-        bool blocked = eeepc_wlan_rfkill_blocked();
+        bool blocked = eeepc_wlan_rfkill_blocked(eeepc);
 
-        if (ehotk->wlan_rfkill)
-                rfkill_set_sw_state(ehotk->wlan_rfkill, blocked);
+        if (eeepc->wlan_rfkill)
+                rfkill_set_sw_state(eeepc->wlan_rfkill, blocked);
 
-        mutex_lock(&ehotk->hotplug_lock);
+        mutex_lock(&eeepc->hotplug_lock);
 
-        if (ehotk->hotplug_slot) {
+        if (eeepc->hotplug_slot) {
                 bus = pci_find_bus(0, 1);
                 if (!bus) {
                         pr_warning("Unable to find PCI bus 1?\n");
@@ -685,69 +565,23 @@ static void eeepc_rfkill_hotplug(void)
         }
 
 out_unlock:
-        mutex_unlock(&ehotk->hotplug_lock);
+        mutex_unlock(&eeepc->hotplug_lock);
 }
 
 static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
 {
+        struct eeepc_laptop *eeepc = data;
+
         if (event != ACPI_NOTIFY_BUS_CHECK)
                 return;
 
-        eeepc_rfkill_hotplug();
+        eeepc_rfkill_hotplug(eeepc);
 }
 
-static void eeepc_hotk_notify(struct acpi_device *device, u32 event)
+static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc,
+                                          char *node)
 {
-        static struct key_entry *key;
-        u16 count;
-        int brn = -ENODEV;
-
-        if (!ehotk)
-                return;
-        if (event > ACPI_MAX_SYS_NOTIFY)
-                return;
-        if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX)
-                brn = notify_brn();
-        count = ehotk->event_count[event % 128]++;
-        acpi_bus_generate_proc_event(ehotk->device, event, count);
-        acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class,
-                                        dev_name(&ehotk->device->dev), event,
-                                        count);
-        if (ehotk->inputdev) {
-                if (brn != -ENODEV) {
-                        /* brightness-change events need special
-                         * handling for conversion to key events
-                         */
-                        if (brn < 0)
-                                brn = event;
-                        else
-                                brn += NOTIFY_BRN_MIN;
-                        if (event < brn)
-                                event = NOTIFY_BRN_MIN; /* brightness down */
-                        else if (event > brn)
-                                event = NOTIFY_BRN_MIN + 2; /* ... up */
-                        else
-                                event = NOTIFY_BRN_MIN + 1; /* ... unchanged */
-                }
-                key = eepc_get_entry_by_scancode(event);
-                if (key) {
-                        switch (key->type) {
-                        case KE_KEY:
-                                input_report_key(ehotk->inputdev, key->keycode,
-                                                 1);
-                                input_sync(ehotk->inputdev);
-                                input_report_key(ehotk->inputdev, key->keycode,
-                                                 0);
-                                input_sync(ehotk->inputdev);
-                                break;
-                        }
-                }
-        }
-}
-
-static int eeepc_register_rfkill_notifier(char *node)
-{
-        acpi_status status = AE_OK;
+        acpi_status status;
         acpi_handle handle;
 
         status = acpi_get_handle(NULL, node, &handle);
@@ -756,7 +590,7 @@ static int eeepc_register_rfkill_notifier(char *node)
                 status = acpi_install_notify_handler(handle,
                                                      ACPI_SYSTEM_NOTIFY,
                                                      eeepc_rfkill_notify,
-                                                     NULL);
+                                                     eeepc);
                 if (ACPI_FAILURE(status))
                         pr_warning("Failed to register notify on %s\n", node);
         } else
@@ -765,7 +599,8 @@ static int eeepc_register_rfkill_notifier(char *node)
         return 0;
 }
 
-static void eeepc_unregister_rfkill_notifier(char *node)
+static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc,
+                                             char *node)
 {
         acpi_status status = AE_OK;
         acpi_handle handle;
@@ -782,13 +617,33 @@ static void eeepc_unregister_rfkill_notifier(char *node)
         }
 }
 
+static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
+                                    u8 *value)
+{
+        struct eeepc_laptop *eeepc = hotplug_slot->private;
+        int val = get_acpi(eeepc, CM_ASL_WLAN);
+
+        if (val == 1 || val == 0)
+                *value = val;
+        else
+                return -EINVAL;
+
+        return 0;
+}
+
 static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
 {
         kfree(hotplug_slot->info);
         kfree(hotplug_slot);
 }
 
-static int eeepc_setup_pci_hotplug(void)
+static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
+        .owner = THIS_MODULE,
+        .get_adapter_status = eeepc_get_adapter_status,
+        .get_power_status = eeepc_get_adapter_status,
+};
+
+static int eeepc_setup_pci_hotplug(struct eeepc_laptop *eeepc)
 {
         int ret = -ENOMEM;
         struct pci_bus *bus = pci_find_bus(0, 1);
@@ -798,22 +653,22 @@ static int eeepc_setup_pci_hotplug(void)
                 return -ENODEV;
         }
 
-        ehotk->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
-        if (!ehotk->hotplug_slot)
+        eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
+        if (!eeepc->hotplug_slot)
                 goto error_slot;
 
-        ehotk->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
+        eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
                                             GFP_KERNEL);
-        if (!ehotk->hotplug_slot->info)
+        if (!eeepc->hotplug_slot->info)
                 goto error_info;
 
-        ehotk->hotplug_slot->private = ehotk;
-        ehotk->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
-        ehotk->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
-        eeepc_get_adapter_status(ehotk->hotplug_slot,
-                                 &ehotk->hotplug_slot->info->adapter_status);
+        eeepc->hotplug_slot->private = eeepc;
+        eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
+        eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
+        eeepc_get_adapter_status(eeepc->hotplug_slot,
+                                 &eeepc->hotplug_slot->info->adapter_status);
 
-        ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi");
+        ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi");
         if (ret) {
                 pr_err("Unable to register hotplug slot - %d\n", ret);
                 goto error_register;
@@ -822,17 +677,156 @@ static int eeepc_setup_pci_hotplug(void)
         return 0;
 
 error_register:
-        kfree(ehotk->hotplug_slot->info);
+        kfree(eeepc->hotplug_slot->info);
 error_info:
-        kfree(ehotk->hotplug_slot);
-        ehotk->hotplug_slot = NULL;
+        kfree(eeepc->hotplug_slot);
+        eeepc->hotplug_slot = NULL;
 error_slot:
         return ret;
 }
 
+/*
+ * Rfkill devices
+ */
+static int eeepc_rfkill_set(void *data, bool blocked)
+{
+        acpi_handle handle = data;
+
+        return write_acpi_int(handle, NULL, !blocked);
+}
+
+static const struct rfkill_ops eeepc_rfkill_ops = {
+        .set_block = eeepc_rfkill_set,
+};
+
+static int eeepc_new_rfkill(struct eeepc_laptop *eeepc,
+                            struct rfkill **rfkill,
+                            const char *name,
+                            enum rfkill_type type, int cm)
+{
+        acpi_handle handle;
+        int result;
+
+        result = acpi_setter_handle(eeepc, cm, &handle);
+        if (result < 0)
+                return result;
+
+        *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
+                               &eeepc_rfkill_ops, handle);
+
+        if (!*rfkill)
+                return -EINVAL;
+
+        rfkill_init_sw_state(*rfkill, get_acpi(eeepc, cm) != 1);
+        result = rfkill_register(*rfkill);
+        if (result) {
+                rfkill_destroy(*rfkill);
+                *rfkill = NULL;
+                return result;
+        }
+        return 0;
+}
+
+static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc)
+{
+        eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
+        eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
+        eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+        if (eeepc->wlan_rfkill) {
+                rfkill_unregister(eeepc->wlan_rfkill);
+                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);
+
+        if (eeepc->bluetooth_rfkill) {
+                rfkill_unregister(eeepc->bluetooth_rfkill);
+                rfkill_destroy(eeepc->bluetooth_rfkill);
+                eeepc->bluetooth_rfkill = NULL;
+        }
+        if (eeepc->wwan3g_rfkill) {
+                rfkill_unregister(eeepc->wwan3g_rfkill);
+                rfkill_destroy(eeepc->wwan3g_rfkill);
+                eeepc->wwan3g_rfkill = NULL;
+        }
+        if (eeepc->wimax_rfkill) {
+                rfkill_unregister(eeepc->wimax_rfkill);
+                rfkill_destroy(eeepc->wimax_rfkill);
+                eeepc->wimax_rfkill = NULL;
+        }
+}
+
+static int eeepc_rfkill_init(struct eeepc_laptop *eeepc)
+{
+        int result = 0;
+
+        mutex_init(&eeepc->hotplug_lock);
+
+        result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill,
+                                  "eeepc-wlan", RFKILL_TYPE_WLAN,
+                                  CM_ASL_WLAN);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill,
+                                  "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH,
+                                  CM_ASL_BLUETOOTH);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill,
+                                  "eeepc-wwan3g", RFKILL_TYPE_WWAN,
+                                  CM_ASL_3G);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill,
+                                  "eeepc-wimax", RFKILL_TYPE_WIMAX,
+                                  CM_ASL_WIMAX);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_setup_pci_hotplug(eeepc);
+        /*
+         * If we get -EBUSY then something else is handling the PCI hotplug -
+         * don't fail in this case
+         */
+        if (result == -EBUSY)
+                result = 0;
+
+        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)
+                eeepc_rfkill_exit(eeepc);
+        return result;
+}
+
+/*
+ * Platform driver - hibernate/resume callbacks
+ */
 static int eeepc_hotk_thaw(struct device *device)
 {
-        if (ehotk->wlan_rfkill) {
+        struct eeepc_laptop *eeepc = dev_get_drvdata(device);
+
+        if (eeepc->wlan_rfkill) {
                 bool wlan;
 
                 /*
@@ -840,8 +834,8 @@ static int eeepc_hotk_thaw(struct device *device)
                  * during suspend.  Normally it restores it on resume, but
                  * we should kick it ourselves in case hibernation is aborted.
                  */
-                wlan = get_acpi(CM_ASL_WLAN);
-                set_acpi(CM_ASL_WLAN, wlan);
+                wlan = get_acpi(eeepc, CM_ASL_WLAN);
+                set_acpi(eeepc, CM_ASL_WLAN, wlan);
         }
 
         return 0;
@@ -849,70 +843,96 @@ static int eeepc_hotk_thaw(struct device *device)
 
 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 (ehotk->wlan_rfkill)
-                eeepc_rfkill_hotplug();
-
-        if (ehotk->bluetooth_rfkill)
-                rfkill_set_sw_state(ehotk->bluetooth_rfkill,
-                                    get_acpi(CM_ASL_BLUETOOTH) != 1);
-        if (ehotk->wwan3g_rfkill)
-                rfkill_set_sw_state(ehotk->wwan3g_rfkill,
-                                    get_acpi(CM_ASL_3G) != 1);
-        if (ehotk->wimax_rfkill)
-                rfkill_set_sw_state(ehotk->wimax_rfkill,
-                                    get_acpi(CM_ASL_WIMAX) != 1);
+        if (eeepc->wlan_rfkill)
+                eeepc_rfkill_hotplug(eeepc);
+
+        if (eeepc->bluetooth_rfkill)
+                rfkill_set_sw_state(eeepc->bluetooth_rfkill,
+                                    get_acpi(eeepc, CM_ASL_BLUETOOTH) != 1);
+        if (eeepc->wwan3g_rfkill)
+                rfkill_set_sw_state(eeepc->wwan3g_rfkill,
+                                    get_acpi(eeepc, CM_ASL_3G) != 1);
+        if (eeepc->wimax_rfkill)
+                rfkill_set_sw_state(eeepc->wimax_rfkill,
+                                    get_acpi(eeepc, CM_ASL_WIMAX) != 1);
 
         return 0;
 }
 
+static const struct dev_pm_ops eeepc_pm_ops = {
+        .thaw = eeepc_hotk_thaw,
+        .restore = eeepc_hotk_restore,
+};
+
+static struct platform_driver platform_driver = {
+        .driver = {
+                .name = EEEPC_LAPTOP_FILE,
+                .owner = THIS_MODULE,
+                .pm = &eeepc_pm_ops,
+        }
+};
+
 /*
- * Hwmon
+ * Hwmon device
  */
+
+#define EEEPC_EC_SC00      0x61
+#define EEEPC_EC_FAN_PWM   (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */
+#define EEEPC_EC_FAN_HRPM  (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */
+#define EEEPC_EC_FAN_LRPM  (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */
+
+#define EEEPC_EC_SFB0      0xD0
+#define EEEPC_EC_FAN_CTRL  (EEEPC_EC_SFB0 + 3) /* Byte containing SF25  */
+
 static int eeepc_get_fan_pwm(void)
 {
-        int value = 0;
+        u8 value = 0;
 
-        read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value);
-        value = value * 255 / 100;
-        return (value);
+        ec_read(EEEPC_EC_FAN_PWM, &value);
+        return value * 255 / 100;
 }
 
 static void eeepc_set_fan_pwm(int value)
 {
         value = SENSORS_LIMIT(value, 0, 255);
         value = value * 100 / 255;
-        ec_write(EEEPC_EC_SC02, value);
+        ec_write(EEEPC_EC_FAN_PWM, value);
 }
 
 static int eeepc_get_fan_rpm(void)
 {
-        int high = 0;
-        int low = 0;
+        u8 high = 0;
+        u8 low = 0;
 
-        read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high);
-        read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low);
-        return (high << 8 | low);
+        ec_read(EEEPC_EC_FAN_HRPM, &high);
+        ec_read(EEEPC_EC_FAN_LRPM, &low);
+        return high << 8 | low;
 }
 
 static int eeepc_get_fan_ctrl(void)
 {
-        int value = 0;
+        u8 value = 0;
 
-        read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
-        return ((value & 0x02 ? 1 : 0));
+        ec_read(EEEPC_EC_FAN_CTRL, &value);
+        if (value & 0x02)
+                return 1; /* manual */
+        else
+                return 2; /* automatic */
 }
 
 static void eeepc_set_fan_ctrl(int manual)
 {
-        int value = 0;
+        u8 value = 0;
 
-        read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
-        if (manual)
+        ec_read(EEEPC_EC_FAN_CTRL, &value);
+        if (manual == 1)
                 value |= 0x02;
         else
                 value &= ~0x02;
-        ec_write(EEEPC_EC_SFB3, value);
+        ec_write(EEEPC_EC_FAN_CTRL, value);
 }
 
 static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count)
@@ -970,348 +990,485 @@ static struct attribute_group hwmon_attribute_group = {
         .attrs = hwmon_attributes
 };
 
-/*
- * exit/init
- */
-static void eeepc_backlight_exit(void)
+static void eeepc_hwmon_exit(struct eeepc_laptop *eeepc)
 {
-        if (eeepc_backlight_device)
-                backlight_device_unregister(eeepc_backlight_device);
-        eeepc_backlight_device = NULL;
+        struct device *hwmon;
+
+        hwmon = eeepc->hwmon_device;
+        if (!hwmon)
+                return;
+        sysfs_remove_group(&hwmon->kobj,
+                           &hwmon_attribute_group);
+        hwmon_device_unregister(hwmon);
+        eeepc->hwmon_device = NULL;
 }
 
-static void eeepc_rfkill_exit(void)
+static int eeepc_hwmon_init(struct eeepc_laptop *eeepc)
 {
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5");
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
-        if (ehotk->wlan_rfkill) {
-                rfkill_unregister(ehotk->wlan_rfkill);
-                rfkill_destroy(ehotk->wlan_rfkill);
-                ehotk->wlan_rfkill = NULL;
-        }
-        /*
-         * Refresh pci hotplug in case the rfkill state was changed after
-         * eeepc_unregister_rfkill_notifier()
-         */
-        eeepc_rfkill_hotplug();
-        if (ehotk->hotplug_slot)
-                pci_hp_deregister(ehotk->hotplug_slot);
-
-        if (ehotk->bluetooth_rfkill) {
-                rfkill_unregister(ehotk->bluetooth_rfkill);
-                rfkill_destroy(ehotk->bluetooth_rfkill);
-                ehotk->bluetooth_rfkill = NULL;
-        }
-        if (ehotk->wwan3g_rfkill) {
-                rfkill_unregister(ehotk->wwan3g_rfkill);
-                rfkill_destroy(ehotk->wwan3g_rfkill);
-                ehotk->wwan3g_rfkill = NULL;
-        }
-        if (ehotk->wimax_rfkill) {
-                rfkill_unregister(ehotk->wimax_rfkill);
-                rfkill_destroy(ehotk->wimax_rfkill);
-                ehotk->wimax_rfkill = NULL;
+        struct device *hwmon;
+        int result;
+
+        hwmon = hwmon_device_register(&eeepc->platform_device->dev);
+        if (IS_ERR(hwmon)) {
+                pr_err("Could not register eeepc hwmon device\n");
+                eeepc->hwmon_device = NULL;
+                return PTR_ERR(hwmon);
         }
+        eeepc->hwmon_device = hwmon;
+        result = sysfs_create_group(&hwmon->kobj,
+                                    &hwmon_attribute_group);
+        if (result)
+                eeepc_hwmon_exit(eeepc);
+        return result;
 }
 
-static void eeepc_input_exit(void)
+/*
+ * Backlight device
+ */
+static int read_brightness(struct backlight_device *bd)
 {
-        if (ehotk->inputdev)
-                input_unregister_device(ehotk->inputdev);
+        struct eeepc_laptop *eeepc = bl_get_data(bd);
+
+        return get_acpi(eeepc, CM_ASL_PANELBRIGHT);
 }
 
-static void eeepc_hwmon_exit(void)
+static int set_brightness(struct backlight_device *bd, int value)
 {
-        struct device *hwmon;
+        struct eeepc_laptop *eeepc = bl_get_data(bd);
 
-        hwmon = eeepc_hwmon_device;
-        if (!hwmon)
-                return ;
-        sysfs_remove_group(&hwmon->kobj,
-                           &hwmon_attribute_group);
-        hwmon_device_unregister(hwmon);
-        eeepc_hwmon_device = NULL;
+        return set_acpi(eeepc, CM_ASL_PANELBRIGHT, value);
 }
 
-static int eeepc_new_rfkill(struct rfkill **rfkill,
-                            const char *name, struct device *dev,
-                            enum rfkill_type type, int cm)
+static int update_bl_status(struct backlight_device *bd)
 {
-        int result;
+        return set_brightness(bd, bd->props.brightness);
+}
 
-        result = get_acpi(cm);
-        if (result < 0)
-                return result;
+static struct backlight_ops eeepcbl_ops = {
+        .get_brightness = read_brightness,
+        .update_status = update_bl_status,
+};
 
-        *rfkill = rfkill_alloc(name, dev, type,
-                               &eeepc_rfkill_ops, (void *)(unsigned long)cm);
+static int eeepc_backlight_notify(struct eeepc_laptop *eeepc)
+{
+        struct backlight_device *bd = eeepc->backlight_device;
+        int old = bd->props.brightness;
 
-        if (!*rfkill)
-                return -EINVAL;
+        backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
 
-        rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1);
-        result = rfkill_register(*rfkill);
-        if (result) {
-                rfkill_destroy(*rfkill);
-                *rfkill = NULL;
-                return result;
-        }
-        return 0;
+        return old;
 }
 
-
-static int eeepc_rfkill_init(struct device *dev)
+static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
 {
-        int result = 0;
-
-        mutex_init(&ehotk->hotplug_lock);
+        struct backlight_device *bd;
 
-        result = eeepc_new_rfkill(&ehotk->wlan_rfkill,
-                                  "eeepc-wlan", dev,
-                                  RFKILL_TYPE_WLAN, CM_ASL_WLAN);
+        bd = backlight_device_register(EEEPC_LAPTOP_FILE,
+                                       &eeepc->platform_device->dev,
+                                       eeepc, &eeepcbl_ops);
+        if (IS_ERR(bd)) {
+                pr_err("Could not register eeepc backlight device\n");
+                eeepc->backlight_device = NULL;
+                return PTR_ERR(bd);
+        }
+        eeepc->backlight_device = bd;
+        bd->props.max_brightness = 15;
+        bd->props.brightness = read_brightness(bd);
+        bd->props.power = FB_BLANK_UNBLANK;
+        backlight_update_status(bd);
+        return 0;
+}
 
-        if (result && result != -ENODEV)
-                goto exit;
+static void eeepc_backlight_exit(struct eeepc_laptop *eeepc)
+{
+        if (eeepc->backlight_device)
+                backlight_device_unregister(eeepc->backlight_device);
+        eeepc->backlight_device = NULL;
+}
 
-        result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill,
-                                  "eeepc-bluetooth", dev,
-                                  RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH);
 
-        if (result && result != -ENODEV)
-                goto exit;
+/*
+ * Input device (i.e. hotkeys)
+ */
+static struct key_entry *eeepc_get_entry_by_scancode(
+        struct eeepc_laptop *eeepc,
+        int code)
+{
+        struct key_entry *key;
 
-        result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill,
-                                  "eeepc-wwan3g", dev,
-                                  RFKILL_TYPE_WWAN, CM_ASL_3G);
+        for (key = eeepc->keymap; key->type != KE_END; key++)
+                if (code == key->code)
+                        return key;
 
-        if (result && result != -ENODEV)
-                goto exit;
+        return NULL;
+}
 
-        result = eeepc_new_rfkill(&ehotk->wimax_rfkill,
-                                  "eeepc-wimax", dev,
-                                  RFKILL_TYPE_WIMAX, CM_ASL_WIMAX);
+static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event)
+{
+        static struct key_entry *key;
 
-        if (result && result != -ENODEV)
-                goto exit;
+        key = eeepc_get_entry_by_scancode(eeepc, event);
+        if (key) {
+                switch (key->type) {
+                case KE_KEY:
+                        input_report_key(eeepc->inputdev, key->keycode,
+                                                1);
+                        input_sync(eeepc->inputdev);
+                        input_report_key(eeepc->inputdev, key->keycode,
+                                                0);
+                        input_sync(eeepc->inputdev);
+                        break;
+                }
+        }
+}
 
-        result = eeepc_setup_pci_hotplug();
-        /*
-         * If we get -EBUSY then something else is handling the PCI hotplug -
-         * don't fail in this case
-         */
-        if (result == -EBUSY)
-                result = 0;
+static struct key_entry *eeepc_get_entry_by_keycode(
+        struct eeepc_laptop *eeepc, int code)
+{
+        struct key_entry *key;
 
-        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P5");
-        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
-        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
-        /*
-         * Refresh pci hotplug in case the rfkill state was changed during
-         * setup.
-         */
-        eeepc_rfkill_hotplug();
+        for (key = eeepc->keymap; key->type != KE_END; key++)
+                if (code == key->keycode && key->type == KE_KEY)
+                        return key;
 
-exit:
-        if (result && result != -ENODEV)
-                eeepc_rfkill_exit();
-        return result;
+        return NULL;
 }
 
-static int eeepc_backlight_init(struct device *dev)
+static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
 {
-        struct backlight_device *bd;
+        struct eeepc_laptop *eeepc = input_get_drvdata(dev);
+        struct key_entry *key = eeepc_get_entry_by_scancode(eeepc, scancode);
 
-        bd = backlight_device_register(EEEPC_HOTK_FILE, dev,
-                                       NULL, &eeepcbl_ops);
-        if (IS_ERR(bd)) {
-                pr_err("Could not register eeepc backlight device\n");
-                eeepc_backlight_device = NULL;
-                return PTR_ERR(bd);
+        if (key && key->type == KE_KEY) {
+                *keycode = key->keycode;
+                return 0;
         }
-        eeepc_backlight_device = bd;
-        bd->props.max_brightness = 15;
-        bd->props.brightness = read_brightness(NULL);
-        bd->props.power = FB_BLANK_UNBLANK;
-        backlight_update_status(bd);
-        return 0;
+
+        return -EINVAL;
 }
 
-static int eeepc_hwmon_init(struct device *dev)
+static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
 {
-        struct device *hwmon;
-        int result;
+        struct eeepc_laptop *eeepc = input_get_drvdata(dev);
+        struct key_entry *key;
+        int old_keycode;
 
-        hwmon = hwmon_device_register(dev);
-        if (IS_ERR(hwmon)) {
-                pr_err("Could not register eeepc hwmon device\n");
-                eeepc_hwmon_device = NULL;
-                return PTR_ERR(hwmon);
+        if (keycode < 0 || keycode > KEY_MAX)
+                return -EINVAL;
+
+        key = eeepc_get_entry_by_scancode(eeepc, scancode);
+        if (key && key->type == KE_KEY) {
+                old_keycode = key->keycode;
+                key->keycode = keycode;
+                set_bit(keycode, dev->keybit);
+                if (!eeepc_get_entry_by_keycode(eeepc, old_keycode))
+                        clear_bit(old_keycode, dev->keybit);
+                return 0;
         }
-        eeepc_hwmon_device = hwmon;
-        result = sysfs_create_group(&hwmon->kobj,
-                                    &hwmon_attribute_group);
-        if (result)
-                eeepc_hwmon_exit();
-        return result;
+
+        return -EINVAL;
 }
 
-static int eeepc_input_init(struct device *dev)
+static int eeepc_input_init(struct eeepc_laptop *eeepc)
 {
         const struct key_entry *key;
         int result;
 
-        ehotk->inputdev = input_allocate_device();
-        if (!ehotk->inputdev) {
+        eeepc->inputdev = input_allocate_device();
+        if (!eeepc->inputdev) {
                 pr_info("Unable to allocate input device\n");
                 return -ENOMEM;
         }
-        ehotk->inputdev->name = "Asus EeePC extra buttons";
-        ehotk->inputdev->dev.parent = dev;
-        ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
-        ehotk->inputdev->id.bustype = BUS_HOST;
-        ehotk->inputdev->getkeycode = eeepc_getkeycode;
-        ehotk->inputdev->setkeycode = eeepc_setkeycode;
-
+        eeepc->inputdev->name = "Asus EeePC extra buttons";
+        eeepc->inputdev->dev.parent = &eeepc->platform_device->dev;
+        eeepc->inputdev->phys = EEEPC_LAPTOP_FILE "/input0";
+        eeepc->inputdev->id.bustype = BUS_HOST;
+        eeepc->inputdev->getkeycode = eeepc_getkeycode;
+        eeepc->inputdev->setkeycode = eeepc_setkeycode;
+        input_set_drvdata(eeepc->inputdev, eeepc);
+
+        eeepc->keymap = kmemdup(eeepc_keymap, sizeof(eeepc_keymap),
+                                GFP_KERNEL);
         for (key = eeepc_keymap; key->type != KE_END; key++) {
                 switch (key->type) {
                 case KE_KEY:
-                        set_bit(EV_KEY, ehotk->inputdev->evbit);
-                        set_bit(key->keycode, ehotk->inputdev->keybit);
+                        set_bit(EV_KEY, eeepc->inputdev->evbit);
+                        set_bit(key->keycode, eeepc->inputdev->keybit);
                         break;
                 }
         }
-        result = input_register_device(ehotk->inputdev);
+        result = input_register_device(eeepc->inputdev);
         if (result) {
                 pr_info("Unable to register input device\n");
-                input_free_device(ehotk->inputdev);
+                input_free_device(eeepc->inputdev);
                 return result;
         }
         return 0;
 }
 
-static int __devinit eeepc_hotk_add(struct acpi_device *device)
+static void eeepc_input_exit(struct eeepc_laptop *eeepc)
 {
-        struct device *dev;
+        if (eeepc->inputdev) {
+                input_unregister_device(eeepc->inputdev);
+                kfree(eeepc->keymap);
+        }
+}
+
+/*
+ * ACPI driver
+ */
+static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
+{
+        struct eeepc_laptop *eeepc = acpi_driver_data(device);
+        u16 count;
+
+        if (event > ACPI_MAX_SYS_NOTIFY)
+                return;
+        count = eeepc->event_count[event % 128]++;
+        acpi_bus_generate_proc_event(device, event, count);
+        acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                        dev_name(&device->dev), event,
+                                        count);
+
+        /* Brightness events are special */
+        if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) {
+
+                /* Ignore them completely if the acpi video driver is used */
+                if (eeepc->backlight_device != NULL) {
+                        int old_brightness, new_brightness;
+
+                        /* Update the backlight device. */
+                        old_brightness = eeepc_backlight_notify(eeepc);
+
+                        /* Convert event to keypress (obsolescent hack) */
+                        new_brightness = event - NOTIFY_BRN_MIN;
+
+                        if (new_brightness < old_brightness) {
+                                event = NOTIFY_BRN_MIN; /* brightness down */
+                        } else if (new_brightness > old_brightness) {
+                                event = NOTIFY_BRN_MAX; /* brightness up */
+                        } else {
+                                /*
+                                * no change in brightness - already at min/max,
+                                * event will be desired value (or else ignored)
+                                */
+                        }
+                        eeepc_input_notify(eeepc, event);
+                }
+        } else {
+                /* Everything else is a bona-fide keypress event */
+                eeepc_input_notify(eeepc, event);
+        }
+}
+
+static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name)
+{
+        int dummy;
+
+        /* Some BIOSes do not report cm although it is avaliable.
+           Check if cm_getv[cm] works and, if yes, assume cm should be set. */
+        if (!(eeepc->cm_supported & (1 << cm))
+            && !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) {
+                pr_info("%s (%x) not reported by BIOS,"
+                        " enabling anyway\n", name, 1 << cm);
+                eeepc->cm_supported |= 1 << cm;
+        }
+}
+
+static void cmsg_quirks(struct eeepc_laptop *eeepc)
+{
+        cmsg_quirk(eeepc, CM_ASL_LID, "LID");
+        cmsg_quirk(eeepc, CM_ASL_TYPE, "TYPE");
+        cmsg_quirk(eeepc, CM_ASL_PANELPOWER, "PANELPOWER");
+        cmsg_quirk(eeepc, CM_ASL_TPD, "TPD");
+}
+
+static int eeepc_acpi_init(struct eeepc_laptop *eeepc,
+                           struct acpi_device *device)
+{
+        unsigned int init_flags;
         int result;
 
-        if (!device)
-                return -EINVAL;
-        pr_notice(EEEPC_HOTK_NAME "\n");
-        ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL);
-        if (!ehotk)
-                return -ENOMEM;
-        ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH;
-        ehotk->handle = device->handle;
-        strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME);
-        strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS);
-        device->driver_data = ehotk;
-        ehotk->device = device;
-
-        result = eeepc_hotk_check();
+        result = acpi_bus_get_status(device);
         if (result)
-                goto fail_platform_driver;
-        eeepc_enable_camera();
+                return result;
+        if (!device->status.present) {
+                pr_err("Hotkey device not present, aborting\n");
+                return -ENODEV;
+        }
 
-        /* Register platform stuff */
-        result = platform_driver_register(&platform_driver);
-        if (result)
-                goto fail_platform_driver;
-        platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1);
-        if (!platform_device) {
-                result = -ENOMEM;
-                goto fail_platform_device1;
+        init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH;
+        pr_notice("Hotkey init flags 0x%x\n", init_flags);
+
+        if (write_acpi_int(eeepc->handle, "INIT", init_flags)) {
+                pr_err("Hotkey initialization failed\n");
+                return -ENODEV;
         }
-        result = platform_device_add(platform_device);
-        if (result)
-                goto fail_platform_device2;
-        result = sysfs_create_group(&platform_device->dev.kobj,
-                                    &platform_attribute_group);
+
+        /* get control methods supported */
+        if (read_acpi_int(eeepc->handle, "CMSG", &eeepc->cm_supported)) {
+                pr_err("Get control methods supported failed\n");
+                return -ENODEV;
+        }
+        cmsg_quirks(eeepc);
+        pr_info("Get control methods supported: 0x%x\n", eeepc->cm_supported);
+
+        return 0;
+}
+
+static void __devinit eeepc_enable_camera(struct eeepc_laptop *eeepc)
+{
+        /*
+         * If the following call to set_acpi() fails, it's because there's no
+         * camera so we can ignore the error.
+         */
+        if (get_acpi(eeepc, CM_ASL_CAMERA) == 0)
+                set_acpi(eeepc, CM_ASL_CAMERA, 1);
+}
+
+static bool eeepc_device_present;
+
+static int __devinit eeepc_acpi_add(struct acpi_device *device)
+{
+        struct eeepc_laptop *eeepc;
+        int result;
+
+        pr_notice(EEEPC_LAPTOP_NAME "\n");
+        eeepc = kzalloc(sizeof(struct eeepc_laptop), GFP_KERNEL);
+        if (!eeepc)
+                return -ENOMEM;
+        eeepc->handle = device->handle;
+        strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME);
+        strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS);
+        device->driver_data = eeepc;
+
+        result = eeepc_acpi_init(eeepc, device);
         if (result)
-                goto fail_sysfs;
+                goto fail_platform;
+        eeepc_enable_camera(eeepc);
 
-        dev = &platform_device->dev;
+        /*
+         * Register the platform device first.  It is used as a parent for the
+         * sub-devices below.
+         *
+         * Note that if there are multiple instances of this ACPI device it
+         * will bail out, because the platform device is registered with a
+         * fixed name.  Of course it doesn't make sense to have more than one,
+         * and machine-specific scripts find the fixed name convenient.  But
+         * It's also good for us to exclude multiple instances because both
+         * our hwmon and our wlan rfkill subdevice use global ACPI objects
+         * (the EC and the wlan PCI slot respectively).
+         */
+        result = eeepc_platform_init(eeepc);
+        if (result)
+                goto fail_platform;
 
         if (!acpi_video_backlight_support()) {
-                result = eeepc_backlight_init(dev);
+                result = eeepc_backlight_init(eeepc);
                 if (result)
                         goto fail_backlight;
         } else
-                pr_info("Backlight controlled by ACPI video "
-                        "driver\n");
+                pr_info("Backlight controlled by ACPI video driver\n");
 
-        result = eeepc_input_init(dev);
+        result = eeepc_input_init(eeepc);
         if (result)
                 goto fail_input;
 
-        result = eeepc_hwmon_init(dev);
+        result = eeepc_hwmon_init(eeepc);
         if (result)
                 goto fail_hwmon;
 
-        result = eeepc_rfkill_init(dev);
+        result = eeepc_led_init(eeepc);
+        if (result)
+                goto fail_led;
+
+        result = eeepc_rfkill_init(eeepc);
         if (result)
                 goto fail_rfkill;
 
+        eeepc_device_present = true;
         return 0;
 
 fail_rfkill:
-        eeepc_hwmon_exit();
+        eeepc_led_exit(eeepc);
+fail_led:
+        eeepc_hwmon_exit(eeepc);
 fail_hwmon:
-        eeepc_input_exit();
+        eeepc_input_exit(eeepc);
 fail_input:
-        eeepc_backlight_exit();
+        eeepc_backlight_exit(eeepc);
 fail_backlight:
-        sysfs_remove_group(&platform_device->dev.kobj,
-                           &platform_attribute_group);
-fail_sysfs:
-        platform_device_del(platform_device);
-fail_platform_device2:
-        platform_device_put(platform_device);
-fail_platform_device1:
-        platform_driver_unregister(&platform_driver);
-fail_platform_driver:
-        kfree(ehotk);
+        eeepc_platform_exit(eeepc);
+fail_platform:
+        kfree(eeepc);
 
         return result;
 }
 
-static int eeepc_hotk_remove(struct acpi_device *device, int type)
+static int eeepc_acpi_remove(struct acpi_device *device, int type)
 {
-        if (!device || !acpi_driver_data(device))
-                return -EINVAL;
+        struct eeepc_laptop *eeepc = acpi_driver_data(device);
 
-        eeepc_backlight_exit();
-        eeepc_rfkill_exit();
-        eeepc_input_exit();
-        eeepc_hwmon_exit();
-        sysfs_remove_group(&platform_device->dev.kobj,
-                           &platform_attribute_group);
-        platform_device_unregister(platform_device);
-        platform_driver_unregister(&platform_driver);
+        eeepc_backlight_exit(eeepc);
+        eeepc_rfkill_exit(eeepc);
+        eeepc_input_exit(eeepc);
+        eeepc_hwmon_exit(eeepc);
+        eeepc_led_exit(eeepc);
+        eeepc_platform_exit(eeepc);
 
-        kfree(ehotk);
+        kfree(eeepc);
         return 0;
 }
 
+
+static const struct acpi_device_id eeepc_device_ids[] = {
+        {EEEPC_ACPI_HID, 0},
+        {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, eeepc_device_ids);
+
+static struct acpi_driver eeepc_acpi_driver = {
+        .name = EEEPC_LAPTOP_NAME,
+        .class = EEEPC_ACPI_CLASS,
+        .owner = THIS_MODULE,
+        .ids = eeepc_device_ids,
+        .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
+        .ops = {
+                .add = eeepc_acpi_add,
+                .remove = eeepc_acpi_remove,
+                .notify = eeepc_acpi_notify,
+        },
+};
+
+
 static int __init eeepc_laptop_init(void)
 {
         int result;
 
-        if (acpi_disabled)
-                return -ENODEV;
-        result = acpi_bus_register_driver(&eeepc_hotk_driver);
+        result = platform_driver_register(&platform_driver);
         if (result < 0)
                 return result;
-        if (!ehotk) {
-                acpi_bus_unregister_driver(&eeepc_hotk_driver);
-                return -ENODEV;
+
+        result = acpi_bus_register_driver(&eeepc_acpi_driver);
+        if (result < 0)
+                goto fail_acpi_driver;
+        if (!eeepc_device_present) {
+                result = -ENODEV;
+                goto fail_no_device;
         }
         return 0;
+
+fail_no_device:
+        acpi_bus_unregister_driver(&eeepc_acpi_driver);
+fail_acpi_driver:
+        platform_driver_unregister(&platform_driver);
+        return result;
 }
 
 static void __exit eeepc_laptop_exit(void)
 {
-        acpi_bus_unregister_driver(&eeepc_hotk_driver);
+        acpi_bus_unregister_driver(&eeepc_acpi_driver);
+        platform_driver_unregister(&platform_driver);
 }
 
 module_init(eeepc_laptop_init);
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index f00a71c58e69..63c3e658a884 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -51,6 +51,12 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 #define HPWMI_WIRELESS_QUERY 0x5
 #define HPWMI_HOTKEY_QUERY 0xc
 
+enum hp_wmi_radio {
+        HPWMI_WIFI = 0,
+        HPWMI_BLUETOOTH = 1,
+        HPWMI_WWAN = 2,
+};
+
 static int __init hp_wmi_bios_setup(struct platform_device *device);
 static int __exit hp_wmi_bios_remove(struct platform_device *device);
 static int hp_wmi_resume_handler(struct device *device);
@@ -175,8 +181,8 @@ static int hp_wmi_tablet_state(void)
 
 static int hp_wmi_set_block(void *data, bool blocked)
 {
-        unsigned long b = (unsigned long) data;
-        int query = BIT(b + 8) | ((!blocked) << b);
+        enum hp_wmi_radio r = (enum hp_wmi_radio) data;
+        int query = BIT(r + 8) | ((!blocked) << r);
 
         return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, query);
 }
@@ -185,31 +191,23 @@ static const struct rfkill_ops hp_wmi_rfkill_ops = {
         .set_block = hp_wmi_set_block,
 };
 
-static bool hp_wmi_wifi_state(void)
-{
-        int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
-
-        if (wireless & 0x100)
-                return false;
-        else
-                return true;
-}
-
-static bool hp_wmi_bluetooth_state(void)
+static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
 {
         int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
+        int mask = 0x200 << (r * 8);
 
-        if (wireless & 0x10000)
+        if (wireless & mask)
                 return false;
         else
                 return true;
 }
 
-static bool hp_wmi_wwan_state(void)
+static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
 {
         int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0);
+        int mask = 0x800 << (r * 8);
 
-        if (wireless & 0x1000000)
+        if (wireless & mask)
                 return false;
         else
                 return true;
@@ -334,49 +332,55 @@ static void hp_wmi_notify(u32 value, void *context)
         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
         static struct key_entry *key;
         union acpi_object *obj;
+        int eventcode;
 
         wmi_get_event_data(value, &response);
 
         obj = (union acpi_object *)response.pointer;
 
-        if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) {
-                int eventcode = *((u8 *) obj->buffer.pointer);
-                if (eventcode == 0x4)
-                        eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
-                                                         0);
-                key = hp_wmi_get_entry_by_scancode(eventcode);
-                if (key) {
-                        switch (key->type) {
-                        case KE_KEY:
-                                input_report_key(hp_wmi_input_dev,
-                                                 key->keycode, 1);
-                                input_sync(hp_wmi_input_dev);
-                                input_report_key(hp_wmi_input_dev,
-                                                 key->keycode, 0);
-                                input_sync(hp_wmi_input_dev);
-                                break;
-                        }
-                } else if (eventcode == 0x1) {
-                        input_report_switch(hp_wmi_input_dev, SW_DOCK,
-                                            hp_wmi_dock_state());
-                        input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-                                            hp_wmi_tablet_state());
+        if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
+                printk(KERN_INFO "HP WMI: Unknown response received\n");
+                return;
+        }
+
+        eventcode = *((u8 *) obj->buffer.pointer);
+        if (eventcode == 0x4)
+                eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
+                                                0);
+        key = hp_wmi_get_entry_by_scancode(eventcode);
+        if (key) {
+                switch (key->type) {
+                case KE_KEY:
+                        input_report_key(hp_wmi_input_dev,
+                                         key->keycode, 1);
+                        input_sync(hp_wmi_input_dev);
+                        input_report_key(hp_wmi_input_dev,
+                                         key->keycode, 0);
                         input_sync(hp_wmi_input_dev);
-                } else if (eventcode == 0x5) {
-                        if (wifi_rfkill)
-                                rfkill_set_sw_state(wifi_rfkill,
-                                                    hp_wmi_wifi_state());
-                        if (bluetooth_rfkill)
-                                rfkill_set_sw_state(bluetooth_rfkill,
-                                                    hp_wmi_bluetooth_state());
-                        if (wwan_rfkill)
-                                rfkill_set_sw_state(wwan_rfkill,
-                                                    hp_wmi_wwan_state());
-                } else
-                        printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
-                               eventcode);
+                        break;
+                }
+        } else if (eventcode == 0x1) {
+                input_report_switch(hp_wmi_input_dev, SW_DOCK,
+                                    hp_wmi_dock_state());
+                input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
+                                    hp_wmi_tablet_state());
+                input_sync(hp_wmi_input_dev);
+        } else if (eventcode == 0x5) {
+                if (wifi_rfkill)
+                        rfkill_set_states(wifi_rfkill,
+                                          hp_wmi_get_sw_state(HPWMI_WIFI),
+                                          hp_wmi_get_hw_state(HPWMI_WIFI));
+                if (bluetooth_rfkill)
+                        rfkill_set_states(bluetooth_rfkill,
+                                          hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
+                                          hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
+                if (wwan_rfkill)
+                        rfkill_set_states(wwan_rfkill,
+                                          hp_wmi_get_sw_state(HPWMI_WWAN),
+                                          hp_wmi_get_hw_state(HPWMI_WWAN));
         } else
-                printk(KERN_INFO "HP WMI: Unknown response received\n");
+                printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
+                        eventcode);
 }
 
 static int __init hp_wmi_input_setup(void)
@@ -455,7 +459,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
                 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
                                            RFKILL_TYPE_WLAN,
                                            &hp_wmi_rfkill_ops,
-                                           (void *) 0);
+                                           (void *) HPWMI_WIFI);
+                rfkill_init_sw_state(wifi_rfkill,
+                                     hp_wmi_get_sw_state(HPWMI_WIFI));
+                rfkill_set_hw_state(wifi_rfkill,
+                                    hp_wmi_get_hw_state(HPWMI_WIFI));
                 err = rfkill_register(wifi_rfkill);
                 if (err)
                         goto register_wifi_error;
@@ -465,7 +473,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
                 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
                                                 RFKILL_TYPE_BLUETOOTH,
                                                 &hp_wmi_rfkill_ops,
-                                                (void *) 1);
+                                                (void *) HPWMI_BLUETOOTH);
+                rfkill_init_sw_state(bluetooth_rfkill,
+                                     hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
+                rfkill_set_hw_state(bluetooth_rfkill,
+                                    hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
                 err = rfkill_register(bluetooth_rfkill);
                 if (err)
                         goto register_bluetooth_error;
@@ -475,7 +487,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
                 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
                                            RFKILL_TYPE_WWAN,
                                            &hp_wmi_rfkill_ops,
-                                           (void *) 2);
+                                           (void *) HPWMI_WWAN);
+                rfkill_init_sw_state(wwan_rfkill,
+                                     hp_wmi_get_sw_state(HPWMI_WWAN));
+                rfkill_set_hw_state(wwan_rfkill,
+                                    hp_wmi_get_hw_state(HPWMI_WWAN));
                 err = rfkill_register(wwan_rfkill);
                 if (err)
                         goto register_wwan_err;
@@ -533,6 +549,19 @@ static int hp_wmi_resume_handler(struct device *device)
                 input_sync(hp_wmi_input_dev);
         }
 
+        if (wifi_rfkill)
+                rfkill_set_states(wifi_rfkill,
+                                  hp_wmi_get_sw_state(HPWMI_WIFI),
+                                  hp_wmi_get_hw_state(HPWMI_WIFI));
+        if (bluetooth_rfkill)
+                rfkill_set_states(bluetooth_rfkill,
+                                  hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
+                                  hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
+        if (wwan_rfkill)
+                rfkill_set_states(wwan_rfkill,
+                                  hp_wmi_get_sw_state(HPWMI_WWAN),
+                                  hp_wmi_get_hw_state(HPWMI_WWAN));
+
         return 0;
 }
 
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
new file mode 100644
index 000000000000..0c8fe145c4af
--- /dev/null
+++ b/drivers/platform/x86/msi-wmi.c
@@ -0,0 +1,293 @@
+/*
+ * MSI WMI hotkeys
+ *
+ * Copyright (C) 2009 Novell <trenn@suse.de>
+ *
+ * Most stuff taken over from hp-wmi
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/acpi.h>
+#include <linux/backlight.h>
+
+MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
+MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
+MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
+
+/* Temporary workaround until the WMI sysfs interface goes in
+                { "svn", DMI_SYS_VENDOR },
+                { "pn",  DMI_PRODUCT_NAME },
+                { "pvr", DMI_PRODUCT_VERSION },
+                { "rvn", DMI_BOARD_VENDOR },
+                { "rn",  DMI_BOARD_NAME },
+*/
+
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*");
+
+#define DRV_NAME "msi-wmi"
+#define DRV_PFX DRV_NAME ": "
+
+#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
+#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
+
+#define dprintk(msg...) pr_debug(DRV_PFX msg)
+
+#define KEYCODE_BASE 0xD0
+#define MSI_WMI_BRIGHTNESSUP   KEYCODE_BASE
+#define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1)
+#define MSI_WMI_VOLUMEUP       (KEYCODE_BASE + 2)
+#define MSI_WMI_VOLUMEDOWN     (KEYCODE_BASE + 3)
+static struct key_entry msi_wmi_keymap[] = {
+        { KE_KEY, MSI_WMI_BRIGHTNESSUP,   {KEY_BRIGHTNESSUP} },
+        { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
+        { KE_KEY, MSI_WMI_VOLUMEUP,       {KEY_VOLUMEUP} },
+        { KE_KEY, MSI_WMI_VOLUMEDOWN,     {KEY_VOLUMEDOWN} },
+        { KE_END, 0}
+};
+static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1];
+
+struct backlight_device *backlight;
+
+static int backlight_map[] = { 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF };
+
+static struct input_dev *msi_wmi_input_dev;
+
+static int msi_wmi_query_block(int instance, int *ret)
+{
+        acpi_status status;
+        union acpi_object *obj;
+
+        struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+
+        status = wmi_query_block(MSIWMI_BIOS_GUID, instance, &output);
+
+        obj = output.pointer;
+
+        if (!obj || obj->type != ACPI_TYPE_INTEGER) {
+                if (obj) {
+                        printk(KERN_ERR DRV_PFX "query block returned object "
+                               "type: %d - buffer length:%d\n", obj->type,
+                               obj->type == ACPI_TYPE_BUFFER ?
+                               obj->buffer.length : 0);
+                }
+                kfree(obj);
+                return -EINVAL;
+        }
+        *ret = obj->integer.value;
+        kfree(obj);
+        return 0;
+}
+
+static int msi_wmi_set_block(int instance, int value)
+{
+        acpi_status status;
+
+        struct acpi_buffer input = { sizeof(int), &value };
+
+        dprintk("Going to set block of instance: %d - value: %d\n",
+                instance, value);
+
+        status = wmi_set_block(MSIWMI_BIOS_GUID, instance, &input);
+
+        return ACPI_SUCCESS(status) ? 0 : 1;
+}
+
+static int bl_get(struct backlight_device *bd)
+{
+        int level, err, ret;
+
+        /* Instance 1 is "get backlight", cmp with DSDT */
+        err = msi_wmi_query_block(1, &ret);
+        if (err) {
+                printk(KERN_ERR DRV_PFX "Could not query backlight: %d\n", err);
+                return -EINVAL;
+        }
+        dprintk("Get: Query block returned: %d\n", ret);
+        for (level = 0; level < ARRAY_SIZE(backlight_map); level++) {
+                if (backlight_map[level] == ret) {
+                        dprintk("Current backlight level: 0x%X - index: %d\n",
+                                backlight_map[level], level);
+                        break;
+                }
+        }
+        if (level == ARRAY_SIZE(backlight_map)) {
+                printk(KERN_ERR DRV_PFX "get: Invalid brightness value: 0x%X\n",
+                       ret);
+                return -EINVAL;
+        }
+        return level;
+}
+
+static int bl_set_status(struct backlight_device *bd)
+{
+        int bright = bd->props.brightness;
+        if (bright >= ARRAY_SIZE(backlight_map) || bright < 0)
+                return -EINVAL;
+
+        /* Instance 0 is "set backlight" */
+        return msi_wmi_set_block(0, backlight_map[bright]);
+}
+
+static struct backlight_ops msi_backlight_ops = {
+        .get_brightness = bl_get,
+        .update_status  = bl_set_status,
+};
+
+static void msi_wmi_notify(u32 value, void *context)
+{
+        struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+        static struct key_entry *key;
+        union acpi_object *obj;
+        ktime_t cur;
+
+        wmi_get_event_data(value, &response);
+
+        obj = (union acpi_object *)response.pointer;
+
+        if (obj && obj->type == ACPI_TYPE_INTEGER) {
+                int eventcode = obj->integer.value;
+                dprintk("Eventcode: 0x%x\n", eventcode);
+                key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
+                                eventcode);
+                if (key) {
+                        ktime_t diff;
+                        cur = ktime_get_real();
+                        diff = ktime_sub(cur, last_pressed[key->code -
+                                        KEYCODE_BASE]);
+                        /* Ignore event if the same event happened in a 50 ms
+                           timeframe -> Key press may result in 10-20 GPEs */
+                        if (ktime_to_us(diff) < 1000 * 50) {
+                                dprintk("Suppressed key event 0x%X - "
+                                        "Last press was %lld us ago\n",
+                                         key->code, ktime_to_us(diff));
+                                return;
+                        }
+                        last_pressed[key->code - KEYCODE_BASE] = cur;
+
+                        if (key->type == KE_KEY &&
+                        /* Brightness is served via acpi video driver */
+                        (!acpi_video_backlight_support() ||
+                        (key->code != MSI_WMI_BRIGHTNESSUP &&
+                        key->code != MSI_WMI_BRIGHTNESSDOWN))) {
+                                dprintk("Send key: 0x%X - "
+                                        "Input layer keycode: %d\n", key->code,
+                                         key->keycode);
+                                sparse_keymap_report_entry(msi_wmi_input_dev,
+                                                key, 1, true);
+                        }
+                } else
+                        printk(KERN_INFO "Unknown key pressed - %x\n",
+                               eventcode);
+        } else
+                printk(KERN_INFO DRV_PFX "Unknown event received\n");
+        kfree(response.pointer);
+}
+
+static int __init msi_wmi_input_setup(void)
+{
+        int err;
+
+        msi_wmi_input_dev = input_allocate_device();
+        if (!msi_wmi_input_dev)
+                return -ENOMEM;
+
+        msi_wmi_input_dev->name = "MSI WMI hotkeys";
+        msi_wmi_input_dev->phys = "wmi/input0";
+        msi_wmi_input_dev->id.bustype = BUS_HOST;
+
+        err = sparse_keymap_setup(msi_wmi_input_dev, msi_wmi_keymap, NULL);
+        if (err)
+                goto err_free_dev;
+
+        err = input_register_device(msi_wmi_input_dev);
+
+        if (err)
+                goto err_free_keymap;
+
+        memset(last_pressed, 0, sizeof(last_pressed));
+
+        return 0;
+
+err_free_keymap:
+        sparse_keymap_free(msi_wmi_input_dev);
+err_free_dev:
+        input_free_device(msi_wmi_input_dev);
+        return err;
+}
+
+static int __init msi_wmi_init(void)
+{
+        int err;
+
+        if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
+                printk(KERN_ERR
+                       "This machine doesn't have MSI-hotkeys through WMI\n");
+                return -ENODEV;
+        }
+        err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
+                        msi_wmi_notify, NULL);
+        if (err)
+                return -EINVAL;
+
+        err = msi_wmi_input_setup();
+        if (err)
+                goto err_uninstall_notifier;
+
+        if (!acpi_video_backlight_support()) {
+                backlight = backlight_device_register(DRV_NAME,
+                                NULL, NULL, &msi_backlight_ops);
+                if (IS_ERR(backlight))
+                        goto err_free_input;
+
+                backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
+                err = bl_get(NULL);
+                if (err < 0)
+                        goto err_free_backlight;
+
+                backlight->props.brightness = err;
+        }
+        dprintk("Event handler installed\n");
+
+        return 0;
+
+err_free_backlight:
+        backlight_device_unregister(backlight);
+err_free_input:
+        input_unregister_device(msi_wmi_input_dev);
+err_uninstall_notifier:
+        wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+        return err;
+}
+
+static void __exit msi_wmi_exit(void)
+{
+        if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
+                wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+                sparse_keymap_free(msi_wmi_input_dev);
+                input_unregister_device(msi_wmi_input_dev);
+                backlight_device_unregister(backlight);
+        }
+}
+
+module_init(msi_wmi_init);
+module_exit(msi_wmi_exit);
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index cf61d6a8ef6f..448c8aeb166b 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -21,8 +21,8 @@
  *  02110-1301, USA.
  */
 
-#define TPACPI_VERSION "0.23"
-#define TPACPI_SYSFS_VERSION 0x020500
+#define TPACPI_VERSION "0.24"
+#define TPACPI_SYSFS_VERSION 0x020700
 
 /*
  *  Changelog:
@@ -61,6 +61,7 @@
 
 #include <linux/nvram.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/sysfs.h>
 #include <linux/backlight.h>
 #include <linux/fb.h>
@@ -76,6 +77,10 @@
 #include <linux/jiffies.h>
 #include <linux/workqueue.h>
 
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/initval.h>
+
 #include <acpi/acpi_drivers.h>
 
 #include <linux/pci_ids.h>
@@ -231,6 +236,7 @@ enum tpacpi_hkey_event_t {
 #define TPACPI_DBG_HKEY         0x0008
 #define TPACPI_DBG_FAN          0x0010
 #define TPACPI_DBG_BRGHT        0x0020
+#define TPACPI_DBG_MIXER        0x0040
 
 #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
 #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
@@ -256,7 +262,7 @@ struct tp_acpi_drv_struct {
 struct ibm_struct {
         char *name;
 
-        int (*read) (char *);
+        int (*read) (struct seq_file *);
         int (*write) (char *);
         void (*exit) (void);
         void (*resume) (void);
@@ -298,6 +304,7 @@ static struct {
         u32 fan_ctrl_status_undef:1;
         u32 second_fan:1;
         u32 beep_needs_two_args:1;
+        u32 mixer_no_level_control:1;
         u32 input_device_registered:1;
         u32 platform_drv_registered:1;
         u32 platform_drv_attrs_registered:1;
@@ -309,6 +316,7 @@ static struct {
 
 static struct {
         u16 hotkey_mask_ff:1;
+        u16 volume_ctrl_forbidden:1;
 } tp_warned;
 
 struct thinkpad_id_data {
@@ -425,6 +433,12 @@ static void tpacpi_log_usertask(const char * const what)
           .ec = TPACPI_MATCH_ANY,               \
           .quirks = (__quirk) }
 
+#define TPACPI_QEC_LNV(__id1, __id2, __quirk)   \
+        { .vendor = PCI_VENDOR_ID_LENOVO,       \
+          .bios = TPACPI_MATCH_ANY,             \
+          .ec = TPID(__id1, __id2),             \
+          .quirks = (__quirk) }
+
 struct tpacpi_quirk {
         unsigned int vendor;
         u16 bios;
@@ -776,36 +790,25 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
  ****************************************************************************
  ****************************************************************************/
 
-static int dispatch_procfs_read(char *page, char **start, off_t off,
-                        int count, int *eof, void *data)
+static int dispatch_proc_show(struct seq_file *m, void *v)
 {
-        struct ibm_struct *ibm = data;
-        int len;
+        struct ibm_struct *ibm = m->private;
 
         if (!ibm || !ibm->read)
                 return -EINVAL;
+        return ibm->read(m);
+}
 
-        len = ibm->read(page);
-        if (len < 0)
-                return len;
-
-        if (len <= off + count)
-                *eof = 1;
-        *start = page + off;
-        len -= off;
-        if (len > count)
-                len = count;
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int dispatch_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, dispatch_proc_show, PDE(inode)->data);
 }
 
-static int dispatch_procfs_write(struct file *file,
+static ssize_t dispatch_proc_write(struct file *file,
                         const char __user *userbuf,
-                        unsigned long count, void *data)
+                        size_t count, loff_t *pos)
 {
-        struct ibm_struct *ibm = data;
+        struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data;
         char *kernbuf;
         int ret;
 
@@ -834,6 +837,15 @@ static int dispatch_procfs_write(struct file *file,
         return ret;
 }
 
+static const struct file_operations dispatch_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = dispatch_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+        .write          = dispatch_proc_write,
+};
+
 static char *next_cmd(char **cmds)
 {
         char *start = *cmds;
@@ -1261,6 +1273,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id,
         struct tpacpi_rfk *atp_rfk;
         int res;
         bool sw_state = false;
+        bool hw_state;
         int sw_status;
 
         BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]);
@@ -1295,7 +1308,8 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id,
                         rfkill_init_sw_state(atp_rfk->rfkill, sw_state);
                 }
         }
-        rfkill_set_hw_state(atp_rfk->rfkill, tpacpi_rfk_check_hwblock_state());
+        hw_state = tpacpi_rfk_check_hwblock_state();
+        rfkill_set_hw_state(atp_rfk->rfkill, hw_state);
 
         res = rfkill_register(atp_rfk->rfkill);
         if (res < 0) {
@@ -1308,6 +1322,9 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id,
         }
 
         tpacpi_rfkill_switches[id] = atp_rfk;
+
+        printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n",
+                name, (sw_state || hw_state) ? "" : "un");
         return 0;
 }
 
@@ -1380,12 +1397,10 @@ static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id,
 }
 
 /* procfs -------------------------------------------------------------- */
-static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p)
+static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m)
 {
-        int len = 0;
-
         if (id >= TPACPI_RFK_SW_MAX)
-                len += sprintf(p + len, "status:\t\tnot supported\n");
+                seq_printf(m, "status:\t\tnot supported\n");
         else {
                 int status;
 
@@ -1399,13 +1414,13 @@ static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p)
                                 return status;
                 }
 
-                len += sprintf(p + len, "status:\t\t%s\n",
+                seq_printf(m, "status:\t\t%s\n",
                                 (status == TPACPI_RFK_RADIO_ON) ?
                                         "enabled" : "disabled");
-                len += sprintf(p + len, "commands:\tenable, disable\n");
+                seq_printf(m, "commands:\tenable, disable\n");
         }
 
-        return len;
+        return 0;
 }
 
 static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf)
@@ -1776,7 +1791,7 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = {
 
         TPV_QL1('7', '9',  'E', '3',  '5', '0'), /* T60/p */
         TPV_QL1('7', 'C',  'D', '2',  '2', '2'), /* R60, R60i */
-        TPV_QL0('7', 'E',  'D', '0'),            /* R60e, R60i */
+        TPV_QL1('7', 'E',  'D', '0',  '1', '5'), /* R60e, R60i */
 
         /*      BIOS FW    BIOS VERS  EC FW     EC VERS */
         TPV_QI2('1', 'W',  '9', '0',  '1', 'V', '2', '8'), /* R50e (1) */
@@ -1792,8 +1807,8 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = {
         TPV_QI1('7', '4',  '6', '4',  '2', '7'), /* X41 (0) */
         TPV_QI1('7', '5',  '6', '0',  '2', '0'), /* X41t (0) */
 
-        TPV_QL0('7', 'B',  'D', '7'),            /* X60/s */
-        TPV_QL0('7', 'J',  '3', '0'),            /* X60t */
+        TPV_QL1('7', 'B',  'D', '7',  '4', '0'), /* X60/s */
+        TPV_QL1('7', 'J',  '3', '0',  '1', '3'), /* X60t */
 
         /* (0) - older versions lack DMI EC fw string and functionality */
         /* (1) - older versions known to lack functionality */
@@ -1883,14 +1898,11 @@ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
         return 0;
 }
 
-static int thinkpad_acpi_driver_read(char *p)
+static int thinkpad_acpi_driver_read(struct seq_file *m)
 {
-        int len = 0;
-
-        len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC);
-        len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION);
-
-        return len;
+        seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
+        seq_printf(m, "version:\t%s\n", TPACPI_VERSION);
+        return 0;
 }
 
 static struct ibm_struct thinkpad_acpi_driver_data = {
@@ -2186,7 +2198,8 @@ static int hotkey_mask_set(u32 mask)
                        fwmask, hotkey_acpi_mask);
         }
 
-        hotkey_mask_warn_incomplete_mask();
+        if (tpacpi_lifecycle != TPACPI_LIFE_EXITING)
+                hotkey_mask_warn_incomplete_mask();
 
         return rc;
 }
@@ -3182,6 +3195,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         int res, i;
         int status;
         int hkeyv;
+        bool radiosw_state  = false;
+        bool tabletsw_state = false;
 
         unsigned long quirks;
 
@@ -3287,6 +3302,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
         if (dbg_wlswemul) {
                 tp_features.hotkey_wlsw = 1;
+                radiosw_state = !!tpacpi_wlsw_emulstate;
                 printk(TPACPI_INFO
                         "radio switch emulation enabled\n");
         } else
@@ -3294,6 +3310,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         /* Not all thinkpads have a hardware radio switch */
         if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
                 tp_features.hotkey_wlsw = 1;
+                radiosw_state = !!status;
                 printk(TPACPI_INFO
                         "radio switch found; radios are %s\n",
                         enabled(status, 0));
@@ -3305,11 +3322,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         /* For X41t, X60t, X61t Tablets... */
         if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) {
                 tp_features.hotkey_tablet = 1;
+                tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK);
                 printk(TPACPI_INFO
                         "possible tablet mode switch found; "
                         "ThinkPad in %s mode\n",
-                        (status & TP_HOTKEY_TABLET_MASK)?
-                                "tablet" : "laptop");
+                        (tabletsw_state) ? "tablet" : "laptop");
                 res = add_to_attr_set(hotkey_dev_attributes,
                                 &dev_attr_hotkey_tablet_mode.attr);
         }
@@ -3344,16 +3361,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
                         TPACPI_HOTKEY_MAP_SIZE);
         }
 
-        set_bit(EV_KEY, tpacpi_inputdev->evbit);
-        set_bit(EV_MSC, tpacpi_inputdev->evbit);
-        set_bit(MSC_SCAN, tpacpi_inputdev->mscbit);
+        input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN);
         tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
         tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN;
         tpacpi_inputdev->keycode = hotkey_keycode_map;
         for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) {
                 if (hotkey_keycode_map[i] != KEY_RESERVED) {
-                        set_bit(hotkey_keycode_map[i],
-                                tpacpi_inputdev->keybit);
+                        input_set_capability(tpacpi_inputdev, EV_KEY,
+                                                hotkey_keycode_map[i]);
                 } else {
                         if (i < sizeof(hotkey_reserved_mask)*8)
                                 hotkey_reserved_mask |= 1 << i;
@@ -3361,12 +3376,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         }
 
         if (tp_features.hotkey_wlsw) {
-                set_bit(EV_SW, tpacpi_inputdev->evbit);
-                set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit);
+                input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL);
+                input_report_switch(tpacpi_inputdev,
+                                    SW_RFKILL_ALL, radiosw_state);
         }
         if (tp_features.hotkey_tablet) {
-                set_bit(EV_SW, tpacpi_inputdev->evbit);
-                set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit);
+                input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE);
+                input_report_switch(tpacpi_inputdev,
+                                    SW_TABLET_MODE, tabletsw_state);
         }
 
         /* Do not issue duplicate brightness change events to
@@ -3433,8 +3450,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         tpacpi_inputdev->close = &hotkey_inputdev_close;
 
         hotkey_poll_setup_safe(true);
-        tpacpi_send_radiosw_update();
-        tpacpi_input_send_tabletsw();
 
         return 0;
 
@@ -3542,49 +3557,57 @@ static bool hotkey_notify_usrevent(const u32 hkey,
         }
 }
 
+static void thermal_dump_all_sensors(void);
+
 static bool hotkey_notify_thermal(const u32 hkey,
                                  bool *send_acpi_ev,
                                  bool *ignore_acpi_ev)
 {
+        bool known = true;
+
         /* 0x6000-0x6FFF: thermal alarms */
         *send_acpi_ev = true;
         *ignore_acpi_ev = false;
 
         switch (hkey) {
+        case TP_HKEY_EV_THM_TABLE_CHANGED:
+                printk(TPACPI_INFO
+                        "EC reports that Thermal Table has changed\n");
+                /* recommended action: do nothing, we don't have
+                 * Lenovo ATM information */
+                return true;
         case TP_HKEY_EV_ALARM_BAT_HOT:
                 printk(TPACPI_CRIT
                         "THERMAL ALARM: battery is too hot!\n");
                 /* recommended action: warn user through gui */
-                return true;
+                break;
         case TP_HKEY_EV_ALARM_BAT_XHOT:
                 printk(TPACPI_ALERT
                         "THERMAL EMERGENCY: battery is extremely hot!\n");
                 /* recommended action: immediate sleep/hibernate */
-                return true;
+                break;
         case TP_HKEY_EV_ALARM_SENSOR_HOT:
                 printk(TPACPI_CRIT
                         "THERMAL ALARM: "
                         "a sensor reports something is too hot!\n");
                 /* recommended action: warn user through gui, that */
                 /* some internal component is too hot */
-                return true;
+                break;
         case TP_HKEY_EV_ALARM_SENSOR_XHOT:
                 printk(TPACPI_ALERT
                         "THERMAL EMERGENCY: "
                         "a sensor reports something is extremely hot!\n");
                 /* recommended action: immediate sleep/hibernate */
-                return true;
-        case TP_HKEY_EV_THM_TABLE_CHANGED:
-                printk(TPACPI_INFO
-                        "EC reports that Thermal Table has changed\n");
-                /* recommended action: do nothing, we don't have
-                 * Lenovo ATM information */
-                return true;
+                break;
         default:
                 printk(TPACPI_ALERT
                          "THERMAL ALERT: unknown thermal alarm received\n");
-                return false;
+                known = false;
         }
+
+        thermal_dump_all_sensors();
+
+        return known;
 }
 
 static void hotkey_notify(struct ibm_struct *ibm, u32 event)
@@ -3727,14 +3750,13 @@ static void hotkey_resume(void)
 }
 
 /* procfs -------------------------------------------------------------- */
-static int hotkey_read(char *p)
+static int hotkey_read(struct seq_file *m)
 {
         int res, status;
-        int len = 0;
 
         if (!tp_features.hotkey) {
-                len += sprintf(p + len, "status:\t\tnot supported\n");
-                return len;
+                seq_printf(m, "status:\t\tnot supported\n");
+                return 0;
         }
 
         if (mutex_lock_killable(&hotkey_mutex))
@@ -3746,17 +3768,16 @@ static int hotkey_read(char *p)
         if (res)
                 return res;
 
-        len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
+        seq_printf(m, "status:\t\t%s\n", enabled(status, 0));
         if (hotkey_all_mask) {
-                len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask);
-                len += sprintf(p + len,
-                               "commands:\tenable, disable, reset, <mask>\n");
+                seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask);
+                seq_printf(m, "commands:\tenable, disable, reset, <mask>\n");
         } else {
-                len += sprintf(p + len, "mask:\t\tnot supported\n");
-                len += sprintf(p + len, "commands:\tenable, disable, reset\n");
+                seq_printf(m, "mask:\t\tnot supported\n");
+                seq_printf(m, "commands:\tenable, disable, reset\n");
         }
 
-        return len;
+        return 0;
 }
 
 static void hotkey_enabledisable_warn(bool enable)
@@ -3863,15 +3884,6 @@ enum {
 
 #define TPACPI_RFK_BLUETOOTH_SW_NAME    "tpacpi_bluetooth_sw"
 
-static void bluetooth_suspend(pm_message_t state)
-{
-        /* Try to make sure radio will resume powered off */
-        if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
-                   TP_ACPI_BLTH_PWR_OFF_ON_RESUME))
-                vdbg_printk(TPACPI_DBG_RFKILL,
-                        "bluetooth power down on resume request failed\n");
-}
-
 static int bluetooth_get_status(void)
 {
         int status;
@@ -3905,10 +3917,9 @@ static int bluetooth_set_status(enum tpacpi_rfkill_state state)
 #endif
 
         /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */
+        status = TP_ACPI_BLUETOOTH_RESUMECTRL;
         if (state == TPACPI_RFK_RADIO_ON)
-                status = TP_ACPI_BLUETOOTH_RADIOSSW;
-        else
-                status = 0;
+                status |= TP_ACPI_BLUETOOTH_RADIOSSW;
 
         if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
                 return -EIO;
@@ -4032,9 +4043,9 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
 }
 
 /* procfs -------------------------------------------------------------- */
-static int bluetooth_read(char *p)
+static int bluetooth_read(struct seq_file *m)
 {
-        return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, p);
+        return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m);
 }
 
 static int bluetooth_write(char *buf)
@@ -4047,7 +4058,6 @@ static struct ibm_struct bluetooth_driver_data = {
         .read = bluetooth_read,
         .write = bluetooth_write,
         .exit = bluetooth_exit,
-        .suspend = bluetooth_suspend,
         .shutdown = bluetooth_shutdown,
 };
 
@@ -4065,15 +4075,6 @@ enum {
 
 #define TPACPI_RFK_WWAN_SW_NAME         "tpacpi_wwan_sw"
 
-static void wan_suspend(pm_message_t state)
-{
-        /* Try to make sure radio will resume powered off */
-        if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd",
-                   TP_ACPI_WGSV_PWR_OFF_ON_RESUME))
-                vdbg_printk(TPACPI_DBG_RFKILL,
-                        "WWAN power down on resume request failed\n");
-}
-
 static int wan_get_status(void)
 {
         int status;
@@ -4106,11 +4107,10 @@ static int wan_set_status(enum tpacpi_rfkill_state state)
         }
 #endif
 
-        /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */
+        /* We make sure to set TP_ACPI_WANCARD_RESUMECTRL */
+        status = TP_ACPI_WANCARD_RESUMECTRL;
         if (state == TPACPI_RFK_RADIO_ON)
-                status = TP_ACPI_WANCARD_RADIOSSW;
-        else
-                status = 0;
+                status |= TP_ACPI_WANCARD_RADIOSSW;
 
         if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
                 return -EIO;
@@ -4233,9 +4233,9 @@ static int __init wan_init(struct ibm_init_struct *iibm)
 }
 
 /* procfs -------------------------------------------------------------- */
-static int wan_read(char *p)
+static int wan_read(struct seq_file *m)
 {
-        return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, p);
+        return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m);
 }
 
 static int wan_write(char *buf)
@@ -4248,7 +4248,6 @@ static struct ibm_struct wan_driver_data = {
         .read = wan_read,
         .write = wan_write,
         .exit = wan_exit,
-        .suspend = wan_suspend,
         .shutdown = wan_shutdown,
 };
 
@@ -4611,14 +4610,13 @@ static int video_expand_toggle(void)
         /* not reached */
 }
 
-static int video_read(char *p)
+static int video_read(struct seq_file *m)
 {
         int status, autosw;
-        int len = 0;
 
         if (video_supported == TPACPI_VIDEO_NONE) {
-                len += sprintf(p + len, "status:\t\tnot supported\n");
-                return len;
+                seq_printf(m, "status:\t\tnot supported\n");
+                return 0;
         }
 
         status = video_outputsw_get();
@@ -4629,20 +4627,20 @@ static int video_read(char *p)
         if (autosw < 0)
                 return autosw;
 
-        len += sprintf(p + len, "status:\t\tsupported\n");
-        len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0));
-        len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1));
+        seq_printf(m, "status:\t\tsupported\n");
+        seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0));
+        seq_printf(m, "crt:\t\t%s\n", enabled(status, 1));
         if (video_supported == TPACPI_VIDEO_NEW)
-                len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3));
-        len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0));
-        len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n");
-        len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n");
+                seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3));
+        seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0));
+        seq_printf(m, "commands:\tlcd_enable, lcd_disable\n");
+        seq_printf(m, "commands:\tcrt_enable, crt_disable\n");
         if (video_supported == TPACPI_VIDEO_NEW)
-                len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n");
-        len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n");
-        len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n");
+                seq_printf(m, "commands:\tdvi_enable, dvi_disable\n");
+        seq_printf(m, "commands:\tauto_enable, auto_disable\n");
+        seq_printf(m, "commands:\tvideo_switch, expand_toggle\n");
 
-        return len;
+        return 0;
 }
 
 static int video_write(char *buf)
@@ -4834,25 +4832,24 @@ static void light_exit(void)
                 flush_workqueue(tpacpi_wq);
 }
 
-static int light_read(char *p)
+static int light_read(struct seq_file *m)
 {
-        int len = 0;
         int status;
 
         if (!tp_features.light) {
-                len += sprintf(p + len, "status:\t\tnot supported\n");
+                seq_printf(m, "status:\t\tnot supported\n");
         } else if (!tp_features.light_status) {
-                len += sprintf(p + len, "status:\t\tunknown\n");
-                len += sprintf(p + len, "commands:\ton, off\n");
+                seq_printf(m, "status:\t\tunknown\n");
+                seq_printf(m, "commands:\ton, off\n");
         } else {
                 status = light_get_status();
                 if (status < 0)
                         return status;
-                len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0));
-                len += sprintf(p + len, "commands:\ton, off\n");
+                seq_printf(m, "status:\t\t%s\n", onoff(status, 0));
+                seq_printf(m, "commands:\ton, off\n");
         }
 
-        return len;
+        return 0;
 }
 
 static int light_write(char *buf)
@@ -4930,20 +4927,18 @@ static void cmos_exit(void)
         device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
 }
 
-static int cmos_read(char *p)
+static int cmos_read(struct seq_file *m)
 {
-        int len = 0;
-
         /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
            R30, R31, T20-22, X20-21 */
         if (!cmos_handle)
-                len += sprintf(p + len, "status:\t\tnot supported\n");
+                seq_printf(m, "status:\t\tnot supported\n");
         else {
-                len += sprintf(p + len, "status:\t\tsupported\n");
-                len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n");
+                seq_printf(m, "status:\t\tsupported\n");
+                seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n");
         }
 
-        return len;
+        return 0;
 }
 
 static int cmos_write(char *buf)
@@ -5318,15 +5313,13 @@ static int __init led_init(struct ibm_init_struct *iibm)
         ((s) == TPACPI_LED_OFF ? "off" : \
                 ((s) == TPACPI_LED_ON ? "on" : "blinking"))
 
-static int led_read(char *p)
+static int led_read(struct seq_file *m)
 {
-        int len = 0;
-
         if (!led_supported) {
-                len += sprintf(p + len, "status:\t\tnot supported\n");
-                return len;
+                seq_printf(m, "status:\t\tnot supported\n");
+                return 0;
         }
-        len += sprintf(p + len, "status:\t\tsupported\n");
+        seq_printf(m, "status:\t\tsupported\n");
 
         if (led_supported == TPACPI_LED_570) {
                 /* 570 */
@@ -5335,15 +5328,15 @@ static int led_read(char *p)
                         status = led_get_status(i);
                         if (status < 0)
                                 return -EIO;
-                        len += sprintf(p + len, "%d:\t\t%s\n",
+                        seq_printf(m, "%d:\t\t%s\n",
                                        i, str_led_status(status));
                 }
         }
 
-        len += sprintf(p + len, "commands:\t"
+        seq_printf(m, "commands:\t"
                        "<led> on, <led> off, <led> blink (<led> is 0-15)\n");
 
-        return len;
+        return 0;
 }
 
 static int led_write(char *buf)
@@ -5416,18 +5409,16 @@ static int __init beep_init(struct ibm_init_struct *iibm)
         return (beep_handle)? 0 : 1;
 }
 
-static int beep_read(char *p)
+static int beep_read(struct seq_file *m)
 {
-        int len = 0;
-
         if (!beep_handle)
-                len += sprintf(p + len, "status:\t\tnot supported\n");
+                seq_printf(m, "status:\t\tnot supported\n");
         else {
-                len += sprintf(p + len, "status:\t\tsupported\n");
-                len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n");
+                seq_printf(m, "status:\t\tsupported\n");
+                seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n");
         }
 
-        return len;
+        return 0;
 }
 
 static int beep_write(char *buf)
@@ -5480,8 +5471,11 @@ enum { /* TPACPI_THERMAL_TPEC_* */
         TP_EC_THERMAL_TMP0 = 0x78,      /* ACPI EC regs TMP 0..7 */
         TP_EC_THERMAL_TMP8 = 0xC0,      /* ACPI EC regs TMP 8..15 */
         TP_EC_THERMAL_TMP_NA = -128,    /* ACPI EC sensor not available */
+
+        TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */
 };
 
+
 #define TPACPI_MAX_THERMAL_SENSORS 16   /* Max thermal sensors supported */
 struct ibm_thermal_sensors_struct {
         s32 temp[TPACPI_MAX_THERMAL_SENSORS];
@@ -5571,6 +5565,28 @@ static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
         return n;
 }
 
+static void thermal_dump_all_sensors(void)
+{
+        int n, i;
+        struct ibm_thermal_sensors_struct t;
+
+        n = thermal_get_sensors(&t);
+        if (n <= 0)
+                return;
+
+        printk(TPACPI_NOTICE
+                "temperatures (Celsius):");
+
+        for (i = 0; i < n; i++) {
+                if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA)
+                        printk(KERN_CONT " %d", (int)(t.temp[i] / 1000));
+                else
+                        printk(KERN_CONT " N/A");
+        }
+
+        printk(KERN_CONT "\n");
+}
+
 /* sysfs temp##_input -------------------------------------------------- */
 
 static ssize_t thermal_temp_input_show(struct device *dev,
@@ -5586,7 +5602,7 @@ static ssize_t thermal_temp_input_show(struct device *dev,
         res = thermal_get_sensor(idx, &value);
         if (res)
                 return res;
-        if (value == TP_EC_THERMAL_TMP_NA * 1000)
+        if (value == TPACPI_THERMAL_SENSOR_NA)
                 return -ENXIO;
 
         return snprintf(buf, PAGE_SIZE, "%d\n", value);
@@ -5763,9 +5779,8 @@ static void thermal_exit(void)
         }
 }
 
-static int thermal_read(char *p)
+static int thermal_read(struct seq_file *m)
 {
-        int len = 0;
         int n, i;
         struct ibm_thermal_sensors_struct t;
 
@@ -5773,16 +5788,16 @@ static int thermal_read(char *p)
         if (unlikely(n < 0))
                 return n;
 
-        len += sprintf(p + len, "temperatures:\t");
+        seq_printf(m, "temperatures:\t");
 
         if (n > 0) {
                 for (i = 0; i < (n - 1); i++)
-                        len += sprintf(p + len, "%d ", t.temp[i] / 1000);
-                len += sprintf(p + len, "%d\n", t.temp[i] / 1000);
+                        seq_printf(m, "%d ", t.temp[i] / 1000);
+                seq_printf(m, "%d\n", t.temp[i] / 1000);
         } else
-                len += sprintf(p + len, "not supported\n");
+                seq_printf(m, "not supported\n");
 
-        return len;
+        return 0;
 }
 
 static struct ibm_struct thermal_driver_data = {
@@ -5797,39 +5812,38 @@ static struct ibm_struct thermal_driver_data = {
 
 static u8 ecdump_regs[256];
 
-static int ecdump_read(char *p)
+static int ecdump_read(struct seq_file *m)
 {
-        int len = 0;
         int i, j;
         u8 v;
 
-        len += sprintf(p + len, "EC      "
+        seq_printf(m, "EC      "
                        " +00 +01 +02 +03 +04 +05 +06 +07"
                        " +08 +09 +0a +0b +0c +0d +0e +0f\n");
         for (i = 0; i < 256; i += 16) {
-                len += sprintf(p + len, "EC 0x%02x:", i);
+                seq_printf(m, "EC 0x%02x:", i);
                 for (j = 0; j < 16; j++) {
                         if (!acpi_ec_read(i + j, &v))
                                 break;
                         if (v != ecdump_regs[i + j])
-                                len += sprintf(p + len, " *%02x", v);
+                                seq_printf(m, " *%02x", v);
                         else
-                                len += sprintf(p + len, "  %02x", v);
+                                seq_printf(m, "  %02x", v);
                         ecdump_regs[i + j] = v;
                 }
-                len += sprintf(p + len, "\n");
+                seq_putc(m, '\n');
                 if (j != 16)
                         break;
         }
 
         /* These are way too dangerous to advertise openly... */
 #if 0
-        len += sprintf(p + len, "commands:\t0x<offset> 0x<value>"
+        seq_printf(m, "commands:\t0x<offset> 0x<value>"
                        " (<offset> is 00-ff, <value> is 00-ff)\n");
-        len += sprintf(p + len, "commands:\t0x<offset> <value>  "
+        seq_printf(m, "commands:\t0x<offset> <value>  "
                        " (<offset> is 00-ff, <value> is 0-255)\n");
 #endif
-        return len;
+        return 0;
 }
 
 static int ecdump_write(char *buf)
@@ -6092,6 +6106,12 @@ static int brightness_get(struct backlight_device *bd)
         return status & TP_EC_BACKLIGHT_LVLMSK;
 }
 
+static void tpacpi_brightness_notify_change(void)
+{
+        backlight_force_update(ibm_backlight_device,
+                               BACKLIGHT_UPDATE_HOTKEY);
+}
+
 static struct backlight_ops ibm_backlight_data = {
         .get_brightness = brightness_get,
         .update_status  = brightness_update_status,
@@ -6120,8 +6140,8 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
 
         /* Models with Intel Extreme Graphics 2 */
         TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC),
-        TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC),
-        TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC),
+        TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
 
         /* Models with Intel GMA900 */
         TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC),    /* T43, R52 */
@@ -6246,6 +6266,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
         ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
         backlight_update_status(ibm_backlight_device);
 
+        vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
+                        "brightness: registering brightness hotkeys "
+                        "as change notification\n");
+        tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
+                                | TP_ACPI_HKEY_BRGHTUP_MASK
+                                | TP_ACPI_HKEY_BRGHTDWN_MASK);;
         return 0;
 }
 
@@ -6270,23 +6296,22 @@ static void brightness_exit(void)
         tpacpi_brightness_checkpoint_nvram();
 }
 
-static int brightness_read(char *p)
+static int brightness_read(struct seq_file *m)
 {
-        int len = 0;
         int level;
 
         level = brightness_get(NULL);
         if (level < 0) {
-                len += sprintf(p + len, "level:\t\tunreadable\n");
+                seq_printf(m, "level:\t\tunreadable\n");
         } else {
-                len += sprintf(p + len, "level:\t\t%d\n", level);
-                len += sprintf(p + len, "commands:\tup, down\n");
-                len += sprintf(p + len, "commands:\tlevel <level>"
+                seq_printf(m, "level:\t\t%d\n", level);
+                seq_printf(m, "commands:\tup, down\n");
+                seq_printf(m, "commands:\tlevel <level>"
                                " (<level> is 0-%d)\n",
                                (tp_features.bright_16levels) ? 15 : 7);
         }
 
-        return len;
+        return 0;
 }
 
 static int brightness_write(char *buf)
@@ -6322,6 +6347,9 @@ static int brightness_write(char *buf)
          * Doing it this way makes the syscall restartable in case of EINTR
          */
         rc = brightness_set(level);
+        if (!rc && ibm_backlight_device)
+                backlight_force_update(ibm_backlight_device,
+                                        BACKLIGHT_UPDATE_SYSFS);
         return (rc == -EINTR)? -ERESTARTSYS : rc;
 }
 
@@ -6338,99 +6366,654 @@ static struct ibm_struct brightness_driver_data = {
  * Volume subdriver
  */
 
-static int volume_offset = 0x30;
+/*
+ * IBM ThinkPads have a simple volume controller with MUTE gating.
+ * Very early Lenovo ThinkPads follow the IBM ThinkPad spec.
+ *
+ * Since the *61 series (and probably also the later *60 series), Lenovo
+ * ThinkPads only implement the MUTE gate.
+ *
+ * EC register 0x30
+ *   Bit 6: MUTE (1 mutes sound)
+ *   Bit 3-0: Volume
+ *   Other bits should be zero as far as we know.
+ *
+ * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and
+ * bits 3-0 (volume).  Other bits in NVRAM may have other functions,
+ * such as bit 7 which is used to detect repeated presses of MUTE,
+ * and we leave them unchanged.
+ */
+
+#define TPACPI_ALSA_DRVNAME  "ThinkPad EC"
+#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control"
+#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME
+
+static int alsa_index = SNDRV_DEFAULT_IDX1;
+static char *alsa_id = "ThinkPadEC";
+static int alsa_enable = SNDRV_DEFAULT_ENABLE1;
+
+struct tpacpi_alsa_data {
+        struct snd_card *card;
+        struct snd_ctl_elem_id *ctl_mute_id;
+        struct snd_ctl_elem_id *ctl_vol_id;
+};
+
+static struct snd_card *alsa_card;
+
+enum {
+        TP_EC_AUDIO = 0x30,
+
+        /* TP_EC_AUDIO bits */
+        TP_EC_AUDIO_MUTESW = 6,
+
+        /* TP_EC_AUDIO bitmasks */
+        TP_EC_AUDIO_LVL_MSK = 0x0F,
+        TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW),
+
+        /* Maximum volume */
+        TP_EC_VOLUME_MAX = 14,
+};
+
+enum tpacpi_volume_access_mode {
+        TPACPI_VOL_MODE_AUTO = 0,       /* Not implemented yet */
+        TPACPI_VOL_MODE_EC,             /* Pure EC control */
+        TPACPI_VOL_MODE_UCMS_STEP,      /* UCMS step-based control: N/A */
+        TPACPI_VOL_MODE_ECNVRAM,        /* EC control w/ NVRAM store */
+        TPACPI_VOL_MODE_MAX
+};
+
+enum tpacpi_volume_capabilities {
+        TPACPI_VOL_CAP_AUTO = 0,        /* Use white/blacklist */
+        TPACPI_VOL_CAP_VOLMUTE,         /* Output vol and mute */
+        TPACPI_VOL_CAP_MUTEONLY,        /* Output mute only */
+        TPACPI_VOL_CAP_MAX
+};
+
+static enum tpacpi_volume_access_mode volume_mode =
+        TPACPI_VOL_MODE_MAX;
+
+static enum tpacpi_volume_capabilities volume_capabilities;
+static int volume_control_allowed;
 
-static int volume_read(char *p)
+/*
+ * Used to syncronize writers to TP_EC_AUDIO and
+ * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write
+ */
+static struct mutex volume_mutex;
+
+static void tpacpi_volume_checkpoint_nvram(void)
 {
-        int len = 0;
-        u8 level;
+        u8 lec = 0;
+        u8 b_nvram;
+        u8 ec_mask;
+
+        if (volume_mode != TPACPI_VOL_MODE_ECNVRAM)
+                return;
+        if (!volume_control_allowed)
+                return;
+
+        vdbg_printk(TPACPI_DBG_MIXER,
+                "trying to checkpoint mixer state to NVRAM...\n");
 
-        if (!acpi_ec_read(volume_offset, &level)) {
-                len += sprintf(p + len, "level:\t\tunreadable\n");
+        if (tp_features.mixer_no_level_control)
+                ec_mask = TP_EC_AUDIO_MUTESW_MSK;
+        else
+                ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK;
+
+        if (mutex_lock_killable(&volume_mutex) < 0)
+                return;
+
+        if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec)))
+                goto unlock;
+        lec &= ec_mask;
+        b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
+
+        if (lec != (b_nvram & ec_mask)) {
+                /* NVRAM needs update */
+                b_nvram &= ~ec_mask;
+                b_nvram |= lec;
+                nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER);
+                dbg_printk(TPACPI_DBG_MIXER,
+                           "updated NVRAM mixer status to 0x%02x (0x%02x)\n",
+                           (unsigned int) lec, (unsigned int) b_nvram);
         } else {
-                len += sprintf(p + len, "level:\t\t%d\n", level & 0xf);
-                len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6));
-                len += sprintf(p + len, "commands:\tup, down, mute\n");
-                len += sprintf(p + len, "commands:\tlevel <level>"
-                               " (<level> is 0-15)\n");
+                vdbg_printk(TPACPI_DBG_MIXER,
+                           "NVRAM mixer status already is 0x%02x (0x%02x)\n",
+                           (unsigned int) lec, (unsigned int) b_nvram);
         }
 
-        return len;
+unlock:
+        mutex_unlock(&volume_mutex);
 }
 
-static int volume_write(char *buf)
+static int volume_get_status_ec(u8 *status)
 {
-        int cmos_cmd, inc, i;
-        u8 level, mute;
-        int new_level, new_mute;
-        char *cmd;
+        u8 s;
 
-        while ((cmd = next_cmd(&buf))) {
-                if (!acpi_ec_read(volume_offset, &level))
-                        return -EIO;
-                new_mute = mute = level & 0x40;
-                new_level = level = level & 0xf;
+        if (!acpi_ec_read(TP_EC_AUDIO, &s))
+                return -EIO;
 
-                if (strlencmp(cmd, "up") == 0) {
-                        if (mute)
-                                new_mute = 0;
-                        else
-                                new_level = level == 15 ? 15 : level + 1;
-                } else if (strlencmp(cmd, "down") == 0) {
-                        if (mute)
-                                new_mute = 0;
-                        else
-                                new_level = level == 0 ? 0 : level - 1;
-                } else if (sscanf(cmd, "level %d", &new_level) == 1 &&
-                           new_level >= 0 && new_level <= 15) {
-                        /* new_level set */
-                } else if (strlencmp(cmd, "mute") == 0) {
-                        new_mute = 0x40;
-                } else
-                        return -EINVAL;
+        *status = s;
 
-                if (new_level != level) {
-                        /* mute doesn't change */
+        dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s);
 
-                        cmos_cmd = (new_level > level) ?
-                                        TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN;
-                        inc = new_level > level ? 1 : -1;
+        return 0;
+}
 
-                        if (mute && (issue_thinkpad_cmos_command(cmos_cmd) ||
-                                     !acpi_ec_write(volume_offset, level)))
-                                return -EIO;
+static int volume_get_status(u8 *status)
+{
+        return volume_get_status_ec(status);
+}
 
-                        for (i = level; i != new_level; i += inc)
-                                if (issue_thinkpad_cmos_command(cmos_cmd) ||
-                                    !acpi_ec_write(volume_offset, i + inc))
-                                        return -EIO;
+static int volume_set_status_ec(const u8 status)
+{
+        if (!acpi_ec_write(TP_EC_AUDIO, status))
+                return -EIO;
 
-                        if (mute &&
-                            (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) ||
-                             !acpi_ec_write(volume_offset, new_level + mute))) {
-                                return -EIO;
-                        }
+        dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status);
+
+        return 0;
+}
+
+static int volume_set_status(const u8 status)
+{
+        return volume_set_status_ec(status);
+}
+
+static int volume_set_mute_ec(const bool mute)
+{
+        int rc;
+        u8 s, n;
+
+        if (mutex_lock_killable(&volume_mutex) < 0)
+                return -EINTR;
+
+        rc = volume_get_status_ec(&s);
+        if (rc)
+                goto unlock;
+
+        n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK :
+                     s & ~TP_EC_AUDIO_MUTESW_MSK;
+
+        if (n != s)
+                rc = volume_set_status_ec(n);
+
+unlock:
+        mutex_unlock(&volume_mutex);
+        return rc;
+}
+
+static int volume_set_mute(const bool mute)
+{
+        dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n",
+                   (mute) ? "" : "un");
+        return volume_set_mute_ec(mute);
+}
+
+static int volume_set_volume_ec(const u8 vol)
+{
+        int rc;
+        u8 s, n;
+
+        if (vol > TP_EC_VOLUME_MAX)
+                return -EINVAL;
+
+        if (mutex_lock_killable(&volume_mutex) < 0)
+                return -EINTR;
+
+        rc = volume_get_status_ec(&s);
+        if (rc)
+                goto unlock;
+
+        n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol;
+
+        if (n != s)
+                rc = volume_set_status_ec(n);
+
+unlock:
+        mutex_unlock(&volume_mutex);
+        return rc;
+}
+
+static int volume_set_volume(const u8 vol)
+{
+        dbg_printk(TPACPI_DBG_MIXER,
+                   "trying to set volume level to %hu\n", vol);
+        return volume_set_volume_ec(vol);
+}
+
+static void volume_alsa_notify_change(void)
+{
+        struct tpacpi_alsa_data *d;
+
+        if (alsa_card && alsa_card->private_data) {
+                d = alsa_card->private_data;
+                if (d->ctl_mute_id)
+                        snd_ctl_notify(alsa_card,
+                                        SNDRV_CTL_EVENT_MASK_VALUE,
+                                        d->ctl_mute_id);
+                if (d->ctl_vol_id)
+                        snd_ctl_notify(alsa_card,
+                                        SNDRV_CTL_EVENT_MASK_VALUE,
+                                        d->ctl_vol_id);
+        }
+}
+
+static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_info *uinfo)
+{
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+        uinfo->count = 1;
+        uinfo->value.integer.min = 0;
+        uinfo->value.integer.max = TP_EC_VOLUME_MAX;
+        return 0;
+}
+
+static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+        u8 s;
+        int rc;
+
+        rc = volume_get_status(&s);
+        if (rc < 0)
+                return rc;
+
+        ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK;
+        return 0;
+}
+
+static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+        return volume_set_volume(ucontrol->value.integer.value[0]);
+}
+
+#define volume_alsa_mute_info snd_ctl_boolean_mono_info
+
+static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+        u8 s;
+        int rc;
+
+        rc = volume_get_status(&s);
+        if (rc < 0)
+                return rc;
+
+        ucontrol->value.integer.value[0] =
+                                (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1;
+        return 0;
+}
+
+static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+        return volume_set_mute(!ucontrol->value.integer.value[0]);
+}
+
+static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = {
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name = "Console Playback Volume",
+        .index = 0,
+        .access = SNDRV_CTL_ELEM_ACCESS_READ,
+        .info = volume_alsa_vol_info,
+        .get = volume_alsa_vol_get,
+};
+
+static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = {
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name = "Console Playback Switch",
+        .index = 0,
+        .access = SNDRV_CTL_ELEM_ACCESS_READ,
+        .info = volume_alsa_mute_info,
+        .get = volume_alsa_mute_get,
+};
+
+static void volume_suspend(pm_message_t state)
+{
+        tpacpi_volume_checkpoint_nvram();
+}
+
+static void volume_resume(void)
+{
+        volume_alsa_notify_change();
+}
+
+static void volume_shutdown(void)
+{
+        tpacpi_volume_checkpoint_nvram();
+}
+
+static void volume_exit(void)
+{
+        if (alsa_card) {
+                snd_card_free(alsa_card);
+                alsa_card = NULL;
+        }
+
+        tpacpi_volume_checkpoint_nvram();
+}
+
+static int __init volume_create_alsa_mixer(void)
+{
+        struct snd_card *card;
+        struct tpacpi_alsa_data *data;
+        struct snd_kcontrol *ctl_vol;
+        struct snd_kcontrol *ctl_mute;
+        int rc;
+
+        rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE,
+                            sizeof(struct tpacpi_alsa_data), &card);
+        if (rc < 0)
+                return rc;
+        if (!card)
+                return -ENOMEM;
+
+        BUG_ON(!card->private_data);
+        data = card->private_data;
+        data->card = card;
+
+        strlcpy(card->driver, TPACPI_ALSA_DRVNAME,
+                sizeof(card->driver));
+        strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME,
+                sizeof(card->shortname));
+        snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s",
+                 (thinkpad_id.ec_version_str) ?
+                        thinkpad_id.ec_version_str : "(unknown)");
+        snprintf(card->longname, sizeof(card->longname),
+                 "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO,
+                 (thinkpad_id.ec_version_str) ?
+                        thinkpad_id.ec_version_str : "unknown");
+
+        if (volume_control_allowed) {
+                volume_alsa_control_vol.put = volume_alsa_vol_put;
+                volume_alsa_control_vol.access =
+                                SNDRV_CTL_ELEM_ACCESS_READWRITE;
+
+                volume_alsa_control_mute.put = volume_alsa_mute_put;
+                volume_alsa_control_mute.access =
+                                SNDRV_CTL_ELEM_ACCESS_READWRITE;
+        }
+
+        if (!tp_features.mixer_no_level_control) {
+                ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL);
+                rc = snd_ctl_add(card, ctl_vol);
+                if (rc < 0) {
+                        printk(TPACPI_ERR
+                                "Failed to create ALSA volume control\n");
+                        goto err_out;
                 }
+                data->ctl_vol_id = &ctl_vol->id;
+        }
 
-                if (new_mute != mute) {
-                        /* level doesn't change */
+        ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL);
+        rc = snd_ctl_add(card, ctl_mute);
+        if (rc < 0) {
+                printk(TPACPI_ERR "Failed to create ALSA mute control\n");
+                goto err_out;
+        }
+        data->ctl_mute_id = &ctl_mute->id;
 
-                        cmos_cmd = (new_mute) ?
-                                   TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP;
+        snd_card_set_dev(card, &tpacpi_pdev->dev);
+        rc = snd_card_register(card);
 
-                        if (issue_thinkpad_cmos_command(cmos_cmd) ||
-                            !acpi_ec_write(volume_offset, level + new_mute))
-                                return -EIO;
+err_out:
+        if (rc < 0) {
+                snd_card_free(card);
+                card = NULL;
+        }
+
+        alsa_card = card;
+        return rc;
+}
+
+#define TPACPI_VOL_Q_MUTEONLY   0x0001  /* Mute-only control available */
+#define TPACPI_VOL_Q_LEVEL      0x0002  /* Volume control available */
+
+static const struct tpacpi_quirk volume_quirk_table[] __initconst = {
+        /* Whitelist volume level on all IBM by default */
+        { .vendor = PCI_VENDOR_ID_IBM,
+          .bios   = TPACPI_MATCH_ANY,
+          .ec     = TPACPI_MATCH_ANY,
+          .quirks = TPACPI_VOL_Q_LEVEL },
+
+        /* Lenovo models with volume control (needs confirmation) */
+        TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */
+        TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */
+        TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */
+        TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */
+        TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */
+        TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */
+        TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */
+
+        /* Whitelist mute-only on all Lenovo by default */
+        { .vendor = PCI_VENDOR_ID_LENOVO,
+          .bios   = TPACPI_MATCH_ANY,
+          .ec     = TPACPI_MATCH_ANY,
+          .quirks = TPACPI_VOL_Q_MUTEONLY }
+};
+
+static int __init volume_init(struct ibm_init_struct *iibm)
+{
+        unsigned long quirks;
+        int rc;
+
+        vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n");
+
+        mutex_init(&volume_mutex);
+
+        /*
+         * Check for module parameter bogosity, note that we
+         * init volume_mode to TPACPI_VOL_MODE_MAX in order to be
+         * able to detect "unspecified"
+         */
+        if (volume_mode > TPACPI_VOL_MODE_MAX)
+                return -EINVAL;
+
+        if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) {
+                printk(TPACPI_ERR
+                        "UCMS step volume mode not implemented, "
+                        "please contact %s\n", TPACPI_MAIL);
+                return 1;
+        }
+
+        if (volume_capabilities >= TPACPI_VOL_CAP_MAX)
+                return -EINVAL;
+
+        /*
+         * The ALSA mixer is our primary interface.
+         * When disabled, don't install the subdriver at all
+         */
+        if (!alsa_enable) {
+                vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                            "ALSA mixer disabled by parameter, "
+                            "not loading volume subdriver...\n");
+                return 1;
+        }
+
+        quirks = tpacpi_check_quirks(volume_quirk_table,
+                                     ARRAY_SIZE(volume_quirk_table));
+
+        switch (volume_capabilities) {
+        case TPACPI_VOL_CAP_AUTO:
+                if (quirks & TPACPI_VOL_Q_MUTEONLY)
+                        tp_features.mixer_no_level_control = 1;
+                else if (quirks & TPACPI_VOL_Q_LEVEL)
+                        tp_features.mixer_no_level_control = 0;
+                else
+                        return 1; /* no mixer */
+                break;
+        case TPACPI_VOL_CAP_VOLMUTE:
+                tp_features.mixer_no_level_control = 0;
+                break;
+        case TPACPI_VOL_CAP_MUTEONLY:
+                tp_features.mixer_no_level_control = 1;
+                break;
+        default:
+                return 1;
+        }
+
+        if (volume_capabilities != TPACPI_VOL_CAP_AUTO)
+                dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                                "using user-supplied volume_capabilities=%d\n",
+                                volume_capabilities);
+
+        if (volume_mode == TPACPI_VOL_MODE_AUTO ||
+            volume_mode == TPACPI_VOL_MODE_MAX) {
+                volume_mode = TPACPI_VOL_MODE_ECNVRAM;
+
+                dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                                "driver auto-selected volume_mode=%d\n",
+                                volume_mode);
+        } else {
+                dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                                "using user-supplied volume_mode=%d\n",
+                                volume_mode);
+        }
+
+        vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                        "mute is supported, volume control is %s\n",
+                        str_supported(!tp_features.mixer_no_level_control));
+
+        rc = volume_create_alsa_mixer();
+        if (rc) {
+                printk(TPACPI_ERR
+                        "Could not create the ALSA mixer interface\n");
+                return rc;
+        }
+
+        printk(TPACPI_INFO
+                "Console audio control enabled, mode: %s\n",
+                (volume_control_allowed) ?
+                        "override (read/write)" :
+                        "monitor (read only)");
+
+        vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
+                "registering volume hotkeys as change notification\n");
+        tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
+                        | TP_ACPI_HKEY_VOLUP_MASK
+                        | TP_ACPI_HKEY_VOLDWN_MASK
+                        | TP_ACPI_HKEY_MUTE_MASK);
+
+        return 0;
+}
+
+static int volume_read(struct seq_file *m)
+{
+        u8 status;
+
+        if (volume_get_status(&status) < 0) {
+                seq_printf(m, "level:\t\tunreadable\n");
+        } else {
+                if (tp_features.mixer_no_level_control)
+                        seq_printf(m, "level:\t\tunsupported\n");
+                else
+                        seq_printf(m, "level:\t\t%d\n",
+                                        status & TP_EC_AUDIO_LVL_MSK);
+
+                seq_printf(m, "mute:\t\t%s\n",
+                                onoff(status, TP_EC_AUDIO_MUTESW));
+
+                if (volume_control_allowed) {
+                        seq_printf(m, "commands:\tunmute, mute\n");
+                        if (!tp_features.mixer_no_level_control) {
+                                seq_printf(m,
+                                               "commands:\tup, down\n");
+                                seq_printf(m,
+                                               "commands:\tlevel <level>"
+                                               " (<level> is 0-%d)\n",
+                                               TP_EC_VOLUME_MAX);
+                        }
                 }
         }
 
         return 0;
 }
 
+static int volume_write(char *buf)
+{
+        u8 s;
+        u8 new_level, new_mute;
+        int l;
+        char *cmd;
+        int rc;
+
+        /*
+         * We do allow volume control at driver startup, so that the
+         * user can set initial state through the volume=... parameter hack.
+         */
+        if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) {
+                if (unlikely(!tp_warned.volume_ctrl_forbidden)) {
+                        tp_warned.volume_ctrl_forbidden = 1;
+                        printk(TPACPI_NOTICE
+                                "Console audio control in monitor mode, "
+                                "changes are not allowed.\n");
+                        printk(TPACPI_NOTICE
+                                "Use the volume_control=1 module parameter "
+                                "to enable volume control\n");
+                }
+                return -EPERM;
+        }
+
+        rc = volume_get_status(&s);
+        if (rc < 0)
+                return rc;
+
+        new_level = s & TP_EC_AUDIO_LVL_MSK;
+        new_mute  = s & TP_EC_AUDIO_MUTESW_MSK;
+
+        while ((cmd = next_cmd(&buf))) {
+                if (!tp_features.mixer_no_level_control) {
+                        if (strlencmp(cmd, "up") == 0) {
+                                if (new_mute)
+                                        new_mute = 0;
+                                else if (new_level < TP_EC_VOLUME_MAX)
+                                        new_level++;
+                                continue;
+                        } else if (strlencmp(cmd, "down") == 0) {
+                                if (new_mute)
+                                        new_mute = 0;
+                                else if (new_level > 0)
+                                        new_level--;
+                                continue;
+                        } else if (sscanf(cmd, "level %u", &l) == 1 &&
+                                   l >= 0 && l <= TP_EC_VOLUME_MAX) {
+                                        new_level = l;
+                                continue;
+                        }
+                }
+                if (strlencmp(cmd, "mute") == 0)
+                        new_mute = TP_EC_AUDIO_MUTESW_MSK;
+                else if (strlencmp(cmd, "unmute") == 0)
+                        new_mute = 0;
+                else
+                        return -EINVAL;
+        }
+
+        if (tp_features.mixer_no_level_control) {
+                tpacpi_disclose_usertask("procfs volume", "%smute\n",
+                                        new_mute ? "" : "un");
+                rc = volume_set_mute(!!new_mute);
+        } else {
+                tpacpi_disclose_usertask("procfs volume",
+                                        "%smute and set level to %d\n",
+                                        new_mute ? "" : "un", new_level);
+                rc = volume_set_status(new_mute | new_level);
+        }
+        volume_alsa_notify_change();
+
+        return (rc == -EINTR) ? -ERESTARTSYS : rc;
+}
+
 static struct ibm_struct volume_driver_data = {
         .name = "volume",
         .read = volume_read,
         .write = volume_write,
+        .exit = volume_exit,
+        .suspend = volume_suspend,
+        .resume = volume_resume,
+        .shutdown = volume_shutdown,
 };
 
 /*************************************************************************
@@ -7507,9 +8090,8 @@ static void fan_resume(void)
         }
 }
 
-static int fan_read(char *p)
+static int fan_read(struct seq_file *m)
 {
-        int len = 0;
         int rc;
         u8 status;
         unsigned int speed = 0;
@@ -7521,7 +8103,7 @@ static int fan_read(char *p)
                 if (rc < 0)
                         return rc;
 
-                len += sprintf(p + len, "status:\t\t%s\n"
+                seq_printf(m, "status:\t\t%s\n"
                                "level:\t\t%d\n",
                                (status != 0) ? "enabled" : "disabled", status);
                 break;
@@ -7532,54 +8114,54 @@ static int fan_read(char *p)
                 if (rc < 0)
                         return rc;
 
-                len += sprintf(p + len, "status:\t\t%s\n",
+                seq_printf(m, "status:\t\t%s\n",
                                (status != 0) ? "enabled" : "disabled");
 
                 rc = fan_get_speed(&speed);
                 if (rc < 0)
                         return rc;
 
-                len += sprintf(p + len, "speed:\t\t%d\n", speed);
+                seq_printf(m, "speed:\t\t%d\n", speed);
 
                 if (status & TP_EC_FAN_FULLSPEED)
                         /* Disengaged mode takes precedence */
-                        len += sprintf(p + len, "level:\t\tdisengaged\n");
+                        seq_printf(m, "level:\t\tdisengaged\n");
                 else if (status & TP_EC_FAN_AUTO)
-                        len += sprintf(p + len, "level:\t\tauto\n");
+                        seq_printf(m, "level:\t\tauto\n");
                 else
-                        len += sprintf(p + len, "level:\t\t%d\n", status);
+                        seq_printf(m, "level:\t\t%d\n", status);
                 break;
 
         case TPACPI_FAN_NONE:
         default:
-                len += sprintf(p + len, "status:\t\tnot supported\n");
+                seq_printf(m, "status:\t\tnot supported\n");
         }
 
         if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
-                len += sprintf(p + len, "commands:\tlevel <level>");
+                seq_printf(m, "commands:\tlevel <level>");
 
                 switch (fan_control_access_mode) {
                 case TPACPI_FAN_WR_ACPI_SFAN:
-                        len += sprintf(p + len, " (<level> is 0-7)\n");
+                        seq_printf(m, " (<level> is 0-7)\n");
                         break;
 
                 default:
-                        len += sprintf(p + len, " (<level> is 0-7, "
+                        seq_printf(m, " (<level> is 0-7, "
                                        "auto, disengaged, full-speed)\n");
                         break;
                 }
         }
 
         if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
-                len += sprintf(p + len, "commands:\tenable, disable\n"
+                seq_printf(m, "commands:\tenable, disable\n"
                                "commands:\twatchdog <timeout> (<timeout> "
                                "is 0 (off), 1-120 (seconds))\n");
 
         if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
-                len += sprintf(p + len, "commands:\tspeed <speed>"
+                seq_printf(m, "commands:\tspeed <speed>"
                                " (<speed> is 0-65535)\n");
 
-        return len;
+        return 0;
 }
 
 static int fan_write_cmd_level(const char *cmd, int *rc)
@@ -7721,10 +8303,23 @@ static struct ibm_struct fan_driver_data = {
  */
 static void tpacpi_driver_event(const unsigned int hkey_event)
 {
+        if (ibm_backlight_device) {
+                switch (hkey_event) {
+                case TP_HKEY_EV_BRGHT_UP:
+                case TP_HKEY_EV_BRGHT_DOWN:
+                        tpacpi_brightness_notify_change();
+                }
+        }
+        if (alsa_card) {
+                switch (hkey_event) {
+                case TP_HKEY_EV_VOL_UP:
+                case TP_HKEY_EV_VOL_DOWN:
+                case TP_HKEY_EV_VOL_MUTE:
+                        volume_alsa_notify_change();
+                }
+        }
 }
 
-
-
 static void hotkey_driver_event(const unsigned int scancode)
 {
         tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode);
@@ -7853,19 +8448,19 @@ static int __init ibm_init(struct ibm_init_struct *iibm)
                 "%s installed\n", ibm->name);
 
         if (ibm->read) {
-                entry = create_proc_entry(ibm->name,
-                                          S_IFREG | S_IRUGO | S_IWUSR,
-                                          proc_dir);
+                mode_t mode;
+
+                mode = S_IRUGO;
+                if (ibm->write)
+                        mode |= S_IWUSR;
+                entry = proc_create_data(ibm->name, mode, proc_dir,
+                                         &dispatch_proc_fops, ibm);
                 if (!entry) {
                         printk(TPACPI_ERR "unable to create proc entry %s\n",
                                ibm->name);
                         ret = -ENODEV;
                         goto err_out;
                 }
-                entry->data = ibm;
-                entry->read_proc = &dispatch_procfs_read;
-                if (ibm->write)
-                        entry->write_proc = &dispatch_procfs_write;
                 ibm->flags.proc_created = 1;
         }
 
@@ -8077,6 +8672,7 @@ static struct ibm_init_struct ibms_init[] __initdata = {
                 .data = &brightness_driver_data,
         },
         {
+                .init = volume_init,
                 .data = &volume_driver_data,
         },
         {
@@ -8112,36 +8708,59 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp)
         return -EINVAL;
 }
 
-module_param(experimental, int, 0);
+module_param(experimental, int, 0444);
 MODULE_PARM_DESC(experimental,
                  "Enables experimental features when non-zero");
 
 module_param_named(debug, dbg_level, uint, 0);
 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
 
-module_param(force_load, bool, 0);
+module_param(force_load, bool, 0444);
 MODULE_PARM_DESC(force_load,
                  "Attempts to load the driver even on a "
                  "mis-identified ThinkPad when true");
 
-module_param_named(fan_control, fan_control_allowed, bool, 0);
+module_param_named(fan_control, fan_control_allowed, bool, 0444);
 MODULE_PARM_DESC(fan_control,
                  "Enables setting fan parameters features when true");
 
-module_param_named(brightness_mode, brightness_mode, uint, 0);
+module_param_named(brightness_mode, brightness_mode, uint, 0444);
 MODULE_PARM_DESC(brightness_mode,
                  "Selects brightness control strategy: "
                  "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM");
 
-module_param(brightness_enable, uint, 0);
+module_param(brightness_enable, uint, 0444);
 MODULE_PARM_DESC(brightness_enable,
                  "Enables backlight control when 1, disables when 0");
 
-module_param(hotkey_report_mode, uint, 0);
+module_param(hotkey_report_mode, uint, 0444);
 MODULE_PARM_DESC(hotkey_report_mode,
                  "used for backwards compatibility with userspace, "
                  "see documentation");
 
+module_param_named(volume_mode, volume_mode, uint, 0444);
+MODULE_PARM_DESC(volume_mode,
+                 "Selects volume control strategy: "
+                 "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM");
+
+module_param_named(volume_capabilities, volume_capabilities, uint, 0444);
+MODULE_PARM_DESC(volume_capabilities,
+                 "Selects the mixer capabilites: "
+                 "0=auto, 1=volume and mute, 2=mute only");
+
+module_param_named(volume_control, volume_control_allowed, bool, 0444);
+MODULE_PARM_DESC(volume_control,
+                 "Enables software override for the console audio "
+                 "control when true");
+
+/* ALSA module API parameters */
+module_param_named(index, alsa_index, int, 0444);
+MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer");
+module_param_named(id, alsa_id, charp, 0444);
+MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer");
+module_param_named(enable, alsa_enable, bool, 0444);
+MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer");
+
 #define TPACPI_PARAM(feature) \
         module_param_call(feature, set_ibm_param, NULL, NULL, 0); \
         MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \
@@ -8160,25 +8779,25 @@ TPACPI_PARAM(volume);
 TPACPI_PARAM(fan);
 
 #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
-module_param(dbg_wlswemul, uint, 0);
+module_param(dbg_wlswemul, uint, 0444);
 MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
 module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
 MODULE_PARM_DESC(wlsw_state,
                  "Initial state of the emulated WLSW switch");
 
-module_param(dbg_bluetoothemul, uint, 0);
+module_param(dbg_bluetoothemul, uint, 0444);
 MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
 module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
 MODULE_PARM_DESC(bluetooth_state,
                  "Initial state of the emulated bluetooth switch");
 
-module_param(dbg_wwanemul, uint, 0);
+module_param(dbg_wwanemul, uint, 0444);
 MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
 module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
 MODULE_PARM_DESC(wwan_state,
                  "Initial state of the emulated WWAN switch");
 
-module_param(dbg_uwbemul, uint, 0);
+module_param(dbg_uwbemul, uint, 0444);
 MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
 module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
 MODULE_PARM_DESC(uwb_state,
@@ -8371,6 +8990,7 @@ static int __init thinkpad_acpi_module_init(void)
                                                 PCI_VENDOR_ID_IBM;
                 tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
                 tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
+                tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
         }
         for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
                 ret = ibm_init(&ibms_init[i]);
diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c
new file mode 100644
index 000000000000..a350418e87ea
--- /dev/null
+++ b/drivers/platform/x86/toshiba_bluetooth.c
@@ -0,0 +1,144 @@
+/*
+ * Toshiba Bluetooth Enable Driver
+ *
+ * Copyright (C) 2009 Jes Sorensen <Jes.Sorensen@gmail.com>
+ *
+ * Thanks to Matthew Garrett for background info on ACPI innards which
+ * normal people aren't meant to understand :-)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Note the Toshiba Bluetooth RFKill switch seems to be a strange
+ * fish. It only provides a BT event when the switch is flipped to
+ * the 'on' position. When flipping it to 'off', the USB device is
+ * simply pulled away underneath us, without any BT event being
+ * delivered.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+MODULE_AUTHOR("Jes Sorensen <Jes.Sorensen@gmail.com>");
+MODULE_DESCRIPTION("Toshiba Laptop ACPI Bluetooth Enable Driver");
+MODULE_LICENSE("GPL");
+
+
+static int toshiba_bt_rfkill_add(struct acpi_device *device);
+static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type);
+static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event);
+static int toshiba_bt_resume(struct acpi_device *device);
+
+static const struct acpi_device_id bt_device_ids[] = {
+        { "TOS6205", 0},
+        { "", 0},
+};
+MODULE_DEVICE_TABLE(acpi, bt_device_ids);
+
+static struct acpi_driver toshiba_bt_rfkill_driver = {
+        .name =         "Toshiba BT",
+        .class =        "Toshiba",
+        .ids =          bt_device_ids,
+        .ops =          {
+                                .add =          toshiba_bt_rfkill_add,
+                                .remove =       toshiba_bt_rfkill_remove,
+                                .notify =       toshiba_bt_rfkill_notify,
+                                .resume =       toshiba_bt_resume,
+                        },
+        .owner =        THIS_MODULE,
+};
+
+
+static int toshiba_bluetooth_enable(acpi_handle handle)
+{
+        acpi_status res1, res2;
+        acpi_integer result;
+
+        /*
+         * Query ACPI to verify RFKill switch is set to 'on'.
+         * If not, we return silently, no need to report it as
+         * an error.
+         */
+        res1 = acpi_evaluate_integer(handle, "BTST", NULL, &result);
+        if (ACPI_FAILURE(res1))
+                return res1;
+        if (!(result & 0x01))
+                return 0;
+
+        printk(KERN_INFO "toshiba_bluetooth: Re-enabling Toshiba Bluetooth\n");
+        res1 = acpi_evaluate_object(handle, "AUSB", NULL, NULL);
+        res2 = acpi_evaluate_object(handle, "BTPO", NULL, NULL);
+        if (!ACPI_FAILURE(res1) || !ACPI_FAILURE(res2))
+                return 0;
+
+        printk(KERN_WARNING "toshiba_bluetooth: Failed to re-enable "
+               "Toshiba Bluetooth\n");
+
+        return -ENODEV;
+}
+
+static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event)
+{
+        toshiba_bluetooth_enable(device->handle);
+}
+
+static int toshiba_bt_resume(struct acpi_device *device)
+{
+        return toshiba_bluetooth_enable(device->handle);
+}
+
+static int toshiba_bt_rfkill_add(struct acpi_device *device)
+{
+        acpi_status status;
+        acpi_integer bt_present;
+        int result = -ENODEV;
+
+        /*
+         * Some Toshiba laptops may have a fake TOS6205 device in
+         * their ACPI BIOS, so query the _STA method to see if there
+         * is really anything there, before trying to enable it.
+         */
+        status = acpi_evaluate_integer(device->handle, "_STA", NULL,
+                                       &bt_present);
+
+        if (!ACPI_FAILURE(status) && bt_present) {
+                printk(KERN_INFO "Detected Toshiba ACPI Bluetooth device - "
+                      "installing RFKill handler\n");
+                result = toshiba_bluetooth_enable(device->handle);
+        }
+
+        return result;
+}
+
+static int __init toshiba_bt_rfkill_init(void)
+{
+        int result;
+
+        result = acpi_bus_register_driver(&toshiba_bt_rfkill_driver);
+        if (result < 0) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+                                  "Error registering driver\n"));
+                return result;
+        }
+
+        return 0;
+}
+
+static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type)
+{
+        /* clean up */
+        return 0;
+}
+
+static void __exit toshiba_bt_rfkill_exit(void)
+{
+        acpi_bus_unregister_driver(&toshiba_bt_rfkill_driver);
+}
+
+module_init(toshiba_bt_rfkill_init);
+module_exit(toshiba_bt_rfkill_exit);
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 177f8d767df4..e425a868cd3a 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/device.h>
 #include <linux/list.h>
 #include <linux/acpi.h>
 #include <acpi/acpi_bus.h>
@@ -65,6 +66,7 @@ struct wmi_block {
         acpi_handle handle;
         wmi_notify_handler handler;
         void *handler_data;
+        struct device *dev;
 };
 
 static struct wmi_block wmi_blocks;
@@ -195,6 +197,34 @@ static bool wmi_parse_guid(const u8 *src, u8 *dest)
         return true;
 }
 
+/*
+ * Convert a raw GUID to the ACII string representation
+ */
+static int wmi_gtoa(const char *in, char *out)
+{
+        int i;
+
+        for (i = 3; i >= 0; i--)
+                out += sprintf(out, "%02X", in[i] & 0xFF);
+
+        out += sprintf(out, "-");
+        out += sprintf(out, "%02X", in[5] & 0xFF);
+        out += sprintf(out, "%02X", in[4] & 0xFF);
+        out += sprintf(out, "-");
+        out += sprintf(out, "%02X", in[7] & 0xFF);
+        out += sprintf(out, "%02X", in[6] & 0xFF);
+        out += sprintf(out, "-");
+        out += sprintf(out, "%02X", in[8] & 0xFF);
+        out += sprintf(out, "%02X", in[9] & 0xFF);
+        out += sprintf(out, "-");
+
+        for (i = 10; i <= 15; i++)
+                out += sprintf(out, "%02X", in[i] & 0xFF);
+
+        out = '\0';
+        return 0;
+}
+
 static bool find_guid(const char *guid_string, struct wmi_block **out)
 {
         char tmp[16], guid_input[16];
@@ -555,6 +585,138 @@ bool wmi_has_guid(const char *guid_string)
 EXPORT_SYMBOL_GPL(wmi_has_guid);
 
 /*
+ * sysfs interface
+ */
+static ssize_t show_modalias(struct device *dev, struct device_attribute *attr,
+                             char *buf)
+{
+        char guid_string[37];
+        struct wmi_block *wblock;
+
+        wblock = dev_get_drvdata(dev);
+        if (!wblock)
+                return -ENOMEM;
+
+        wmi_gtoa(wblock->gblock.guid, guid_string);
+
+        return sprintf(buf, "wmi:%s\n", guid_string);
+}
+static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);
+
+static int wmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+        char guid_string[37];
+
+        struct wmi_block *wblock;
+
+        if (add_uevent_var(env, "MODALIAS="))
+                return -ENOMEM;
+
+        wblock = dev_get_drvdata(dev);
+        if (!wblock)
+                return -ENOMEM;
+
+        wmi_gtoa(wblock->gblock.guid, guid_string);
+
+        strcpy(&env->buf[env->buflen - 1], "wmi:");
+        memcpy(&env->buf[env->buflen - 1 + 4], guid_string, 36);
+        env->buflen += 40;
+
+        return 0;
+}
+
+static void wmi_dev_free(struct device *dev)
+{
+        kfree(dev);
+}
+
+static struct class wmi_class = {
+        .name = "wmi",
+        .dev_release = wmi_dev_free,
+        .dev_uevent = wmi_dev_uevent,
+};
+
+static int wmi_create_devs(void)
+{
+        int result;
+        char guid_string[37];
+        struct guid_block *gblock;
+        struct wmi_block *wblock;
+        struct list_head *p;
+        struct device *guid_dev;
+
+        /* Create devices for all the GUIDs */
+        list_for_each(p, &wmi_blocks.list) {
+                wblock = list_entry(p, struct wmi_block, list);
+
+                guid_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+                if (!guid_dev)
+                        return -ENOMEM;
+
+                wblock->dev = guid_dev;
+
+                guid_dev->class = &wmi_class;
+                dev_set_drvdata(guid_dev, wblock);
+
+                gblock = &wblock->gblock;
+
+                wmi_gtoa(gblock->guid, guid_string);
+                dev_set_name(guid_dev, guid_string);
+
+                result = device_register(guid_dev);
+                if (result)
+                        return result;
+
+                result = device_create_file(guid_dev, &dev_attr_modalias);
+                if (result)
+                        return result;
+        }
+
+        return 0;
+}
+
+static void wmi_remove_devs(void)
+{
+        struct guid_block *gblock;
+        struct wmi_block *wblock;
+        struct list_head *p;
+        struct device *guid_dev;
+
+        /* Delete devices for all the GUIDs */
+        list_for_each(p, &wmi_blocks.list) {
+                wblock = list_entry(p, struct wmi_block, list);
+
+                guid_dev = wblock->dev;
+                gblock = &wblock->gblock;
+
+                device_remove_file(guid_dev, &dev_attr_modalias);
+
+                device_unregister(guid_dev);
+        }
+}
+
+static void wmi_class_exit(void)
+{
+        wmi_remove_devs();
+        class_unregister(&wmi_class);
+}
+
+static int wmi_class_init(void)
+{
+        int ret;
+
+        ret = class_register(&wmi_class);
+        if (ret)
+                return ret;
+
+        ret = wmi_create_devs();
+        if (ret)
+                wmi_class_exit();
+
+        return ret;
+}
+
+/*
  * Parse the _WDG method for the GUID data blocks
  */
 static __init acpi_status parse_wdg(acpi_handle handle)
@@ -709,10 +871,17 @@ static int __init acpi_wmi_init(void)
 
         if (result < 0) {
                 printk(KERN_INFO PREFIX "Error loading mapper\n");
-        } else {
-                printk(KERN_INFO PREFIX "Mapper loaded\n");
+                return -ENODEV;
+        }
+
+        result = wmi_class_init();
+        if (result) {
+                acpi_bus_unregister_driver(&acpi_wmi_driver);
+                return result;
         }
 
+        printk(KERN_INFO PREFIX "Mapper loaded\n");
+
         return result;
 }
 
@@ -721,6 +890,8 @@ static void __exit acpi_wmi_exit(void)
         struct list_head *p, *tmp;
         struct wmi_block *wblock;
 
+        wmi_class_exit();
+
         acpi_bus_unregister_driver(&acpi_wmi_driver);
 
         list_for_each_safe(p, tmp, &wmi_blocks.list) {
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 83b8b5ac49c9..5314bf630bc4 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -80,7 +80,8 @@ static int pnpacpi_get_resources(struct pnp_dev *dev)
 
 static int pnpacpi_set_resources(struct pnp_dev *dev)
 {
-        acpi_handle handle = dev->data;
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         struct acpi_buffer buffer;
         int ret;
 
@@ -103,7 +104,8 @@ static int pnpacpi_set_resources(struct pnp_dev *dev)
 
 static int pnpacpi_disable_resources(struct pnp_dev *dev)
 {
-        acpi_handle handle = dev->data;
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         int ret;
 
         dev_dbg(&dev->dev, "disable resources\n");
@@ -121,6 +123,8 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev)
 #ifdef CONFIG_ACPI_SLEEP
 static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
 {
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         int power_state;
 
         power_state = acpi_pm_device_sleep_state(&dev->dev, NULL);
@@ -128,16 +132,19 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
                 power_state = (state.event == PM_EVENT_ON) ?
                                 ACPI_STATE_D0 : ACPI_STATE_D3;
 
-        return acpi_bus_set_power((acpi_handle) dev->data, power_state);
+        return acpi_bus_set_power(handle, power_state);
 }
 
 static int pnpacpi_resume(struct pnp_dev *dev)
 {
-        return acpi_bus_set_power((acpi_handle) dev->data, ACPI_STATE_D0);
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
+
+        return acpi_bus_set_power(handle, ACPI_STATE_D0);
 }
 #endif
 
-static struct pnp_protocol pnpacpi_protocol = {
+struct pnp_protocol pnpacpi_protocol = {
         .name    = "Plug and Play ACPI",
         .get     = pnpacpi_get_resources,
         .set     = pnpacpi_set_resources,
@@ -147,6 +154,7 @@ static struct pnp_protocol pnpacpi_protocol = {
         .resume = pnpacpi_resume,
 #endif
 };
+EXPORT_SYMBOL(pnpacpi_protocol);
 
 static int __init pnpacpi_add_device(struct acpi_device *device)
 {
@@ -168,7 +176,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
         if (!dev)
                 return -ENOMEM;
 
-        dev->data = device->handle;
+        dev->data = device;
         /* .enabled means the device can decode the resources */
         dev->active = device->status.enabled;
         status = acpi_get_handle(device->handle, "_SRS", &temp);
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index ef3a2cd3a7a0..5702b2c8691f 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -465,7 +465,8 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 
 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
 {
-        acpi_handle handle = dev->data;
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         acpi_status status;
 
         pnp_dbg(&dev->dev, "parse allocated resources\n");
@@ -773,7 +774,8 @@ static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 
 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
 {
-        acpi_handle handle = dev->data;
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         acpi_status status;
         struct acpipnp_parse_option_s parse_data;
 
@@ -845,7 +847,8 @@ static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
 int pnpacpi_build_resource_template(struct pnp_dev *dev,
                                     struct acpi_buffer *buffer)
 {
-        acpi_handle handle = dev->data;
+        struct acpi_device *acpi_dev = dev->data;
+        acpi_handle handle = acpi_dev->handle;
         struct acpi_resource *resource;
         int res_cnt = 0;
         acpi_status status;
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 6f8d8f971212..5066de5cfc0c 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -225,6 +225,12 @@ passive_store(struct device *dev, struct device_attribute *attr,
         if (!sscanf(buf, "%d\n", &state))
                 return -EINVAL;
 
+        /* sanity check: values below 1000 millicelcius don't make sense
+         * and can cause the system to go into a thermal heart attack
+         */
+        if (state && state < 1000)
+                return -EINVAL;
+
         if (state && !tz->forced_passive) {
                 mutex_lock(&thermal_list_lock);
                 list_for_each_entry(cdev, &thermal_cdev_list, node) {
@@ -235,6 +241,8 @@ passive_store(struct device *dev, struct device_attribute *attr,
                                                                  cdev);
                 }
                 mutex_unlock(&thermal_list_lock);
+                if (!tz->passive_delay)
+                        tz->passive_delay = 1000;
         } else if (!state && tz->forced_passive) {
                 mutex_lock(&thermal_list_lock);
                 list_for_each_entry(cdev, &thermal_cdev_list, node) {
@@ -245,17 +253,12 @@ passive_store(struct device *dev, struct device_attribute *attr,
                                                                    cdev);
                 }
                 mutex_unlock(&thermal_list_lock);
+                tz->passive_delay = 0;
         }
 
         tz->tc1 = 1;
         tz->tc2 = 1;
 
-        if (!tz->passive_delay)
-                tz->passive_delay = 1000;
-
-        if (!tz->polling_delay)
-                tz->polling_delay = 10000;
-
         tz->forced_passive = state;
 
         thermal_zone_device_update(tz);
@@ -374,7 +377,7 @@ thermal_cooling_device_cur_state_store(struct device *dev,
         if (!sscanf(buf, "%ld\n", &state))
                 return -EINVAL;
 
-        if (state < 0)
+        if ((long)state < 0)
                 return -EINVAL;
 
         result = cdev->ops->set_cur_state(cdev, state);
@@ -1016,6 +1019,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
                 thermal_zone_device_set_polling(tz, tz->passive_delay);
         else if (tz->polling_delay)
                 thermal_zone_device_set_polling(tz, tz->polling_delay);
+        else
+                thermal_zone_device_set_polling(tz, 0);
         mutex_unlock(&tz->lock);
 }
 EXPORT_SYMBOL(thermal_zone_device_update);
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 5c823d5ab783..d814da4b5365 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -85,7 +85,8 @@
 #define ACPI_LV_INIT                0x00000001
 #define ACPI_LV_DEBUG_OBJECT        0x00000002
 #define ACPI_LV_INFO                0x00000004
-#define ACPI_LV_ALL_EXCEPTIONS      0x00000007
+#define ACPI_LV_REPAIR              0x00000008
+#define ACPI_LV_ALL_EXCEPTIONS      0x0000000F
 
 /* Trace verbosity level 1 [Standard Trace Level] */
 
@@ -143,6 +144,7 @@
 #define ACPI_DB_INIT                ACPI_DEBUG_LEVEL (ACPI_LV_INIT)
 #define ACPI_DB_DEBUG_OBJECT        ACPI_DEBUG_LEVEL (ACPI_LV_DEBUG_OBJECT)
 #define ACPI_DB_INFO                ACPI_DEBUG_LEVEL (ACPI_LV_INFO)
+#define ACPI_DB_REPAIR              ACPI_DEBUG_LEVEL (ACPI_LV_REPAIR)
 #define ACPI_DB_ALL_EXCEPTIONS      ACPI_DEBUG_LEVEL (ACPI_LV_ALL_EXCEPTIONS)
 
 /* Trace level -- also used in the global "DebugLevel" */
@@ -174,8 +176,8 @@
 
 /* Defaults for debug_level, debug and normal */
 
-#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INFO)
-#define ACPI_NORMAL_DEFAULT         (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT)
+#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INFO | ACPI_LV_REPAIR)
+#define ACPI_NORMAL_DEFAULT         (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT | ACPI_LV_REPAIR)
 #define ACPI_DEBUG_ALL              (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
 
 #if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 5e1ad3cd1bbd..86e9735a96bd 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,7 +47,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20091112
+#define ACPI_CA_VERSION                 0x20091214
 
 #include "actypes.h"
 #include "actbl.h"
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 8b668ead6d6e..29245c6b5c0e 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -294,7 +294,7 @@ static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
 #ifdef CONFIG_CPU_FREQ
 void acpi_processor_ppc_init(void);
 void acpi_processor_ppc_exit(void);
-int acpi_processor_ppc_has_changed(struct acpi_processor *pr);
+int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
 extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
 #else
 static inline void acpi_processor_ppc_init(void)
@@ -305,7 +305,8 @@ static inline void acpi_processor_ppc_exit(void)
 {
         return;
 }
-static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
+static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
+                                                                int event_flag)
 {
         static unsigned int printout = 1;
         if (printout) {
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index dfcd920c3e54..ce945d4845fc 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -240,7 +240,7 @@ extern int pnpacpi_disabled;
 #define PXM_INVAL       (-1)
 #define NID_INVAL       (-1)
 
-int acpi_check_resource_conflict(struct resource *res);
+int acpi_check_resource_conflict(const struct resource *res);
 
 int acpi_check_region(resource_size_t start, resource_size_t n,
                       const char *name);
@@ -253,10 +253,16 @@ void __init acpi_old_suspend_ordering(void);
 void __init acpi_s4_no_nvs(void);
 #endif /* CONFIG_PM_SLEEP */
 
+struct acpi_osc_context {
+        char *uuid_str; /* uuid string */
+        int rev;
+        struct acpi_buffer cap; /* arg2/arg3 */
+        struct acpi_buffer ret; /* free by caller if success */
+};
+
 #define OSC_QUERY_TYPE                  0
 #define OSC_SUPPORT_TYPE                1
 #define OSC_CONTROL_TYPE                2
-#define OSC_SUPPORT_MASKS               0x1f
 
 /* _OSC DW0 Definition */
 #define OSC_QUERY_ENABLE                1
@@ -265,12 +271,23 @@ void __init acpi_s4_no_nvs(void);
 #define OSC_INVALID_REVISION_ERROR      8
 #define OSC_CAPABILITIES_MASK_ERROR     16
 
+acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
+
+/* platform-wide _OSC bits */
+#define OSC_SB_PAD_SUPPORT              1
+#define OSC_SB_PPC_OST_SUPPORT          2
+#define OSC_SB_PR3_SUPPORT              4
+#define OSC_SB_CPUHP_OST_SUPPORT        8
+#define OSC_SB_APEI_SUPPORT             16
+
+/* PCI defined _OSC bits */
 /* _OSC DW1 Definition (OS Support Fields) */
 #define OSC_EXT_PCI_CONFIG_SUPPORT              1
 #define OSC_ACTIVE_STATE_PWR_SUPPORT            2
 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
 #define OSC_MSI_SUPPORT                         16
+#define OSC_PCI_SUPPORT_MASKS                   0x1f
 
 /* _OSC DW1 Definition (OS Control Fields) */
 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
@@ -279,7 +296,7 @@ void __init acpi_s4_no_nvs(void);
 #define OSC_PCI_EXPRESS_AER_CONTROL             8
 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
 
-#define OSC_CONTROL_MASKS       (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
+#define OSC_PCI_CONTROL_MASKS   (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
                                 OSC_SHPC_NATIVE_HP_CONTROL |            \
                                 OSC_PCI_EXPRESS_PME_CONTROL |           \
                                 OSC_PCI_EXPRESS_AER_CONTROL |           \
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index fddfafaed024..7c4193eb0072 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -334,6 +334,19 @@ extern struct pnp_protocol pnpbios_protocol;
 #define pnp_device_is_pnpbios(dev) 0
 #endif
 
+#ifdef CONFIG_PNPACPI
+extern struct pnp_protocol pnpacpi_protocol;
+
+static inline struct acpi_device *pnp_acpi_device(struct pnp_dev *dev)
+{
+        if (dev->protocol == &pnpacpi_protocol)
+                return dev->data;
+        return NULL;
+}
+#else
+#define pnp_acpi_device(dev) 0
+#endif
+
 /* status */
 #define PNP_READY               0x0000
 #define PNP_ATTACHED            0x0001