Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: Kconfig: remove CONFIG_ACPI_SLEEP from source
  ACPI: quiet ACPI Exceptions due to no _PTC or _TSS
  ACPI: Remove references to ACPI_STATE_S2 from acpi_pm_enter
  ACPI: Kconfig: always enable CONFIG_ACPI_SLEEP on X86
  ACPI: Kconfig: fold /proc/acpi/sleep under CONFIG_ACPI_PROCFS
  ACPI: Kconfig: CONFIG_ACPI_PROCFS now defaults to N
  ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers
  ACPI: autoload modules - Create ACPI alias interface
  ACPI: autoload modules - ACPICA modifications
  ACPI: asus-laptop: Fix failure exits
  ACPI: fix oops due to typo in new throttling code
  ACPI: ignore _PSx method for hotplugable PCI devices
  ACPI: Use ACPI methods to select PCI device suspend state
  ACPI, PNP: hook ACPI D-state to PNP suspend/resume
  ACPI: Add acpi_pm_device_sleep_state helper routine
  ACPI: Implement the set_target() callback from pm_ops

37 files changed, 551 insertions, 206 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 408b45168ab..251344cb29a 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -11,6 +11,9 @@ menuconfig ACPI
 	depends on PCI
 	depends on PM
 	select PNP
+	# for sleep
+	select HOTPLUG_CPU if X86 && SMP
+	select SUSPEND_SMP if X86 && SMP
 	default y
 	---help---
 	  Advanced Configuration and Power Interface (ACPI) support for 
@@ -42,51 +45,26 @@ menuconfig ACPI
 
 if ACPI
 
-config ACPI_SLEEP
-	bool "Sleep States"
-	depends on X86 && (!SMP || SUSPEND_SMP)
-	default y
-	---help---
-	  This option adds support for ACPI suspend states. 
-
-	  With this option, you will be able to put the system "to sleep". 
-	  Sleep states are low power states for the system and devices. All
-	  of the system operating state is saved to either memory or disk
-	  (depending on the state), to allow the system to resume operation
-	  quickly at your request.
-
-	  Although this option sounds really nifty, barely any of the device
-	  drivers have been converted to the new driver model and hence few
-	  have proper power management support. 
-
-	  This option is not recommended for anyone except those doing driver
-	  power management development.
-
-config ACPI_SLEEP_PROC_FS
-	bool
-	depends on ACPI_SLEEP && PROC_FS
-	default y
-
-config ACPI_SLEEP_PROC_SLEEP
-	bool "/proc/acpi/sleep (deprecated)"
-	depends on ACPI_SLEEP_PROC_FS
-	default n
-	---help---
-	  Create /proc/acpi/sleep
-	  Deprecated by /sys/power/state
-
 config ACPI_PROCFS
-	bool "Procfs interface (deprecated)"
-	default y
+	bool "Deprecated /proc/acpi files"
+	depends on PROC_FS
 	---help---
-	  The Procfs interface for ACPI is made optional for backward compatibility.
-	  As the same functions are duplicated in the sysfs interface
-	  and this proc interface will be removed some time later,
-	  it's marked as deprecated.
-	  ( /proc/acpi/debug_layer && debug_level are deprecated by
-	    /sys/module/acpi/parameters/debug_layer && debug_level.
-	    /proc/acpi/info is deprecated by
-	    /sys/module/acpi/parameters/acpica_version )
+	  For backwards compatibility, this option allows
+	  depricated /proc/acpi/ files to exist, even when
+	  they have been replaced by functions in /sys.
+	  The deprecated files (and their replacements) include:
+
+	  /proc/acpi/sleep (/sys/power/state)
+	  /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
+	  /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
+	  /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
+	  /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
+	  /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
+
+	  This option has no effect on /proc/acpi/ files
+	  and functions which do not yet exist in /sys.
+
+	  Say N to delete /proc/acpi/ files that have moved to /sys/
 
 config ACPI_AC
 	tristate "AC Adapter"
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 37c7dc4f9fe..d8b35093527 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -34,7 +34,6 @@
 
 #define ACPI_AC_COMPONENT		0x00020000
 #define ACPI_AC_CLASS			"ac_adapter"
-#define ACPI_AC_HID 			"ACPI0003"
 #define ACPI_AC_DEVICE_NAME		"AC Adapter"
 #define ACPI_AC_FILE_STATE		"state"
 #define ACPI_AC_NOTIFY_STATUS		0x80
@@ -56,10 +55,16 @@ static int acpi_ac_add(struct acpi_device *device);
 static int acpi_ac_remove(struct acpi_device *device, int type);
 static int acpi_ac_open_fs(struct inode *inode, struct file *file);
 
+const static struct acpi_device_id ac_device_ids[] = {
+	{"ACPI0003", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, ac_device_ids);
+
 static struct acpi_driver acpi_ac_driver = {
 	.name = "ac",
 	.class = ACPI_AC_CLASS,
-	.ids = ACPI_AC_HID,
+	.ids = ac_device_ids,
 	.ops = {
 		.add = acpi_ac_add,
 		.remove = acpi_ac_remove,
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index e65628a0308..5f1127ad5a9 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -53,10 +53,16 @@ static int acpi_memory_device_add(struct acpi_device *device);
 static int acpi_memory_device_remove(struct acpi_device *device, int type);
 static int acpi_memory_device_start(struct acpi_device *device);
 
+static const struct acpi_device_id memory_device_ids[] = {
+	{ACPI_MEMORY_DEVICE_HID, 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, memory_device_ids);
+
 static struct acpi_driver acpi_memory_device_driver = {
 	.name = "acpi_memhotplug",
 	.class = ACPI_MEMORY_DEVICE_CLASS,
-	.ids = ACPI_MEMORY_DEVICE_HID,
+	.ids = memory_device_ids,
 	.ops = {
 		.add = acpi_memory_device_add,
 		.remove = acpi_memory_device_remove,
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index 3cd79caad70..9c4bd220c44 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -56,7 +56,6 @@
 #define ACPI_HOTK_NAME          "Asus Laptop ACPI Extras Driver"
 #define ACPI_HOTK_CLASS         "hotkey"
 #define ACPI_HOTK_DEVICE_NAME   "Hotkey"
-#define ACPI_HOTK_HID           "ATK0100"
 
 /*
  * Some events we use, same for all Asus
@@ -426,14 +425,20 @@ static struct acpi_table_header *asus_info;
 static struct asus_hotk *hotk;
 
 /*
- * The hotkey driver declaration
+ * The hotkey driver and autoloading declaration
  */
 static int asus_hotk_add(struct acpi_device *device);
 static int asus_hotk_remove(struct acpi_device *device, int type);
+static const struct acpi_device_id asus_device_ids[] = {
+	{"ATK0100", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, asus_device_ids);
+
 static struct acpi_driver asus_hotk_driver = {
 	.name = "asus_acpi",
 	.class = ACPI_HOTK_CLASS,
-	.ids = ACPI_HOTK_HID,
+	.ids = asus_device_ids,
 	.ops = {
 		.add = asus_hotk_add,
 		.remove = asus_hotk_remove,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index cad932de383..81651032791 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -41,7 +41,6 @@
 
 #define ACPI_BATTERY_COMPONENT		0x00040000
 #define ACPI_BATTERY_CLASS		"battery"
-#define ACPI_BATTERY_HID		"PNP0C0A"
 #define ACPI_BATTERY_DEVICE_NAME	"Battery"
 #define ACPI_BATTERY_NOTIFY_STATUS	0x80
 #define ACPI_BATTERY_NOTIFY_INFO	0x81
@@ -74,10 +73,16 @@ static int acpi_battery_add(struct acpi_device *device);
 static int acpi_battery_remove(struct acpi_device *device, int type);
 static int acpi_battery_resume(struct acpi_device *device);
 
+static const struct acpi_device_id battery_device_ids[] = {
+	{"PNP0C0A", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, battery_device_ids);
+
 static struct acpi_driver acpi_battery_driver = {
 	.name = "battery",
 	.class = ACPI_BATTERY_CLASS,
-	.ids = ACPI_BATTERY_HID,
+	.ids = battery_device_ids,
 	.ops = {
 		.add = acpi_battery_add,
 		.resume = acpi_battery_resume,
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index cb4110b50cd..540581338ef 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -66,6 +66,16 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI Button Driver");
 MODULE_LICENSE("GPL");
 
+static const struct acpi_device_id button_device_ids[] = {
+	{ACPI_BUTTON_HID_LID,    0},
+	{ACPI_BUTTON_HID_SLEEP,  0},
+	{ACPI_BUTTON_HID_SLEEPF, 0},
+	{ACPI_BUTTON_HID_POWER,  0},
+	{ACPI_BUTTON_HID_POWERF, 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, button_device_ids);
+
 static int acpi_button_add(struct acpi_device *device);
 static int acpi_button_remove(struct acpi_device *device, int type);
 static int acpi_button_info_open_fs(struct inode *inode, struct file *file);
@@ -74,7 +84,7 @@ static int acpi_button_state_open_fs(struct inode *inode, struct file *file);
 static struct acpi_driver acpi_button_driver = {
 	.name = "button",
 	.class = ACPI_BUTTON_CLASS,
-	.ids = "button_power,button_sleep,PNP0C0D,PNP0C0C,PNP0C0E",
+	.ids = button_device_ids,
 	.ops = {
 		.add = acpi_button_add,
 		.remove = acpi_button_remove,
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 0dd3bf7c0ed..3c25ec7a187 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -52,10 +52,18 @@ MODULE_LICENSE("GPL");
 static int acpi_container_add(struct acpi_device *device);
 static int acpi_container_remove(struct acpi_device *device, int type);
 
+static const struct acpi_device_id container_device_ids[] = {
+	{"ACPI0004", 0},
+	{"PNP0A05", 0},
+	{"PNP0A06", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, container_device_ids);
+
 static struct acpi_driver acpi_container_driver = {
 	.name = "container",
 	.class = ACPI_CONTAINER_CLASS,
-	.ids = "ACPI0004,PNP0A05,PNP0A06",
+	.ids = container_device_ids,
 	.ops = {
 		.add = acpi_container_add,
 		.remove = acpi_container_remove,
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 10e851021ec..469f3f57f88 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -41,7 +41,6 @@
 #include <acpi/actypes.h>
 
 #define ACPI_EC_CLASS			"embedded_controller"
-#define ACPI_EC_HID			"PNP0C09"
 #define ACPI_EC_DEVICE_NAME		"Embedded Controller"
 #define ACPI_EC_FILE_INFO		"info"
 
@@ -82,10 +81,15 @@ static int acpi_ec_start(struct acpi_device *device);
 static int acpi_ec_stop(struct acpi_device *device, int type);
 static int acpi_ec_add(struct acpi_device *device);
 
+static const struct acpi_device_id ec_device_ids[] = {
+	{"PNP0C09", 0},
+	{"", 0},
+};
+
 static struct acpi_driver acpi_ec_driver = {
 	.name = "ec",
 	.class = ACPI_EC_CLASS,
-	.ids = ACPI_EC_HID,
+	.ids = ec_device_ids,
 	.ops = {
 		.add = acpi_ec_add,
 		.remove = acpi_ec_remove,
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 23ee7bc4a70..b1aaa0e8458 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -378,7 +378,7 @@ static u8 acpi_ev_match_pci_root_bridge(char *id)
 static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
 {
 	acpi_status status;
-	struct acpi_device_id hid;
+	struct acpica_device_id hid;
 	struct acpi_compatible_id_list *cid;
 	acpi_native_uint i;
 
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index ec655c53949..c81f6bdb68b 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -50,10 +50,16 @@ static int acpi_fan_remove(struct acpi_device *device, int type);
 static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
 static int acpi_fan_resume(struct acpi_device *device);
 
+static const struct acpi_device_id fan_device_ids[] = {
+	{"PNP0C0B", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, fan_device_ids);
+
 static struct acpi_driver acpi_fan_driver = {
 	.name = "fan",
 	.class = ACPI_FAN_CLASS,
-	.ids = "PNP0C0B",
+	.ids = fan_device_ids,
 	.ops = {
 		.add = acpi_fan_add,
 		.remove = acpi_fan_remove,
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index be4f2899de7..ab65b2c2560 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -440,7 +440,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 	acpi_status status;
 	struct acpi_namespace_node *node;
 	u32 flags;
-	struct acpi_device_id hid;
+	struct acpica_device_id hid;
 	struct acpi_compatible_id_list *cid;
 	acpi_native_uint i;
 
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 3448edd61dc..c9f526e5539 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -46,7 +46,6 @@
 #define _COMPONENT		ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_link");
 #define ACPI_PCI_LINK_CLASS		"pci_irq_routing"
-#define ACPI_PCI_LINK_HID		"PNP0C0F"
 #define ACPI_PCI_LINK_DEVICE_NAME	"PCI Interrupt Link"
 #define ACPI_PCI_LINK_FILE_INFO		"info"
 #define ACPI_PCI_LINK_FILE_STATUS	"state"
@@ -54,10 +53,16 @@ ACPI_MODULE_NAME("pci_link");
 static int acpi_pci_link_add(struct acpi_device *device);
 static int acpi_pci_link_remove(struct acpi_device *device, int type);
 
+static struct acpi_device_id link_device_ids[] = {
+	{"PNP0C0F", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, link_device_ids);
+
 static struct acpi_driver acpi_pci_link_driver = {
 	.name = "pci_link",
 	.class = ACPI_PCI_LINK_CLASS,
-	.ids = ACPI_PCI_LINK_HID,
+	.ids = link_device_ids,
 	.ops = {
 		.add = acpi_pci_link_add,
 		.remove = acpi_pci_link_remove,
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index ad4145a3778..f14ff1ffab2 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -38,16 +38,21 @@
 #define _COMPONENT		ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_CLASS		"pci_bridge"
-#define ACPI_PCI_ROOT_HID		"PNP0A03"
 #define ACPI_PCI_ROOT_DEVICE_NAME	"PCI Root Bridge"
 static int acpi_pci_root_add(struct acpi_device *device);
 static int acpi_pci_root_remove(struct acpi_device *device, int type);
 static int acpi_pci_root_start(struct acpi_device *device);
 
+static struct acpi_device_id root_device_ids[] = {
+	{"PNP0A03", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, root_device_ids);
+
 static struct acpi_driver acpi_pci_root_driver = {
 	.name = "pci_root",
 	.class = ACPI_PCI_ROOT_CLASS,
-	.ids = ACPI_PCI_ROOT_HID,
+	.ids = root_device_ids,
 	.ops = {
 		.add = acpi_pci_root_add,
 		.remove = acpi_pci_root_remove,
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 4ffecd17970..57b9a2998fd 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -59,10 +59,16 @@ static int acpi_power_remove(struct acpi_device *device, int type);
 static int acpi_power_resume(struct acpi_device *device);
 static int acpi_power_open_fs(struct inode *inode, struct file *file);
 
+static struct acpi_device_id power_device_ids[] = {
+	{ACPI_POWER_HID, 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, power_device_ids);
+
 static struct acpi_driver acpi_power_driver = {
 	.name = "power",
 	.class = ACPI_POWER_CLASS,
-	.ids = ACPI_POWER_HID,
+	.ids = power_device_ids,
 	.ops = {
 		.add = acpi_power_add,
 		.remove = acpi_power_remove,
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 81aceb5da7c..498422343f3 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -88,10 +88,16 @@ static int acpi_processor_handle_eject(struct acpi_processor *pr);
 extern int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
 
 
+static const struct acpi_device_id processor_device_ids[] = {
+	{ACPI_PROCESSOR_HID, 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, processor_device_ids);
+
 static struct acpi_driver acpi_processor_driver = {
 	.name = "processor",
 	.class = ACPI_PROCESSOR_CLASS,
-	.ids = ACPI_PROCESSOR_HID,
+	.ids = processor_device_ids,
 	.ops = {
 		.add = acpi_processor_add,
 		.remove = acpi_processor_remove,
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 3f55d1f90c1..0b8204e7082 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -47,6 +47,9 @@ ACPI_MODULE_NAME("processor_throttling");
 static int acpi_processor_get_throttling(struct acpi_processor *pr);
 int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
 
+/*
+ * _TPC - Throttling Present Capabilities
+ */
 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
 {
 	acpi_status status = 0;
@@ -55,8 +58,10 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
 	if (!pr)
 		return -EINVAL;
 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TPC"));
+	if (ACPI_FAILURE(status)) {
+		if (status != AE_NOT_FOUND) {
+			ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TPC"));
+		}
 		return -ENODEV;
 	}
 	pr->throttling_platform_limit = (int)tpc;
@@ -68,9 +73,9 @@ int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
 	return acpi_processor_get_platform_limit(pr);
 }
 
-/* --------------------------------------------------------------------------
-                             _PTC, _TSS, _TSD support 
-   -------------------------------------------------------------------------- */
+/*
+ * _PTC - Processor Throttling Control (and status) register location
+ */
 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
 {
 	int result = 0;
@@ -81,7 +86,9 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
 
 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PTC"));
+		if (status != AE_NOT_FOUND) {
+			ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PTC"));
+		}
 		return -ENODEV;
 	}
 
@@ -132,6 +139,10 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
 
 	return result;
 }
+
+/*
+ * _TSS - Throttling Supported States
+ */
 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)
 {
 	int result = 0;
@@ -144,7 +155,9 @@ static int acpi_processor_get_throttling_states(struct acpi_processor *pr)
 
 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TSS"));
+		if (status != AE_NOT_FOUND) {
+			ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TSS"));
+		}
 		return -ENODEV;
 	}
 
@@ -201,6 +214,10 @@ static int acpi_processor_get_throttling_states(struct acpi_processor *pr)
 
 	return result;
 }
+
+/*
+ * _TSD - T-State Dependencies
+ */
 static int acpi_processor_get_tsd(struct acpi_processor *pr)
 {
 	int result = 0;
@@ -213,6 +230,9 @@ static int acpi_processor_get_tsd(struct acpi_processor *pr)
 
 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
+		if (status != AE_NOT_FOUND) {
+			ACPI_EXCEPTION((AE_INFO, status, "Evaluating _TSD"));
+		}
 		return -ENODEV;
 	}
 
@@ -525,9 +545,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 	int result = 0;
 	int step = 0;
 	int i = 0;
-	int no_ptc = 0;
-	int no_tss = 0;
-	int no_tsd = 0;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
@@ -538,12 +555,14 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 	if (!pr)
 		return -EINVAL;
 
-	/* TBD: Support ACPI 2.0 objects */
-	no_ptc = acpi_processor_get_throttling_control(pr);
-	no_tss = acpi_processor_get_throttling_states(pr);
-	no_tsd = acpi_processor_get_tsd(pr);
-
-	if (no_ptc || no_tss) {
+	/*
+	 * Evaluate _PTC, _TSS and _TPC
+	 * They must all be present or none of them can be used.
+	 */
+	if (acpi_processor_get_throttling_control(pr) ||
+		acpi_processor_get_throttling_states(pr) ||
+		acpi_processor_get_platform_limit(pr))
+	{
 		pr->throttling.acpi_processor_get_throttling =
 		    &acpi_processor_get_throttling_fadt;
 		pr->throttling.acpi_processor_set_throttling =
@@ -555,6 +574,8 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 		    &acpi_processor_set_throttling_ptc;
 	}
 
+	acpi_processor_get_tsd(pr);
+
 	if (!pr->throttling.address) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
 		return 0;
@@ -658,18 +679,20 @@ static int acpi_processor_throttling_seq_show(struct seq_file *seq,
 		   pr->throttling.state_count - 1);
 
 	seq_puts(seq, "states:\n");
-	if (acpi_processor_get_throttling == acpi_processor_get_throttling_fadt)
+	if (pr->throttling.acpi_processor_get_throttling ==
+			acpi_processor_get_throttling_fadt) {
 		for (i = 0; i < pr->throttling.state_count; i++)
 			seq_printf(seq, "   %cT%d:                  %02d%%\n",
 				   (i == pr->throttling.state ? '*' : ' '), i,
 				   (pr->throttling.states[i].performance ? pr->
 				    throttling.states[i].performance / 10 : 0));
-	else
+	} else {
 		for (i = 0; i < pr->throttling.state_count; i++)
 			seq_printf(seq, "   %cT%d:                  %02d%%\n",
 				   (i == pr->throttling.state ? '*' : ' '), i,
 				   (int)pr->throttling.states_tss[i].
 				   freqpercentage);
+	}
 
       end:
 	return 0;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 974d00ccfe8..7d8e78ea13a 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -38,7 +38,6 @@
 #define ACPI_SBS_CLASS			"sbs"
 #define ACPI_AC_CLASS			"ac_adapter"
 #define ACPI_BATTERY_CLASS		"battery"
-#define ACPI_SBS_HID			"ACPI0002"
 #define ACPI_SBS_DEVICE_NAME		"Smart Battery System"
 #define ACPI_SBS_FILE_INFO		"info"
 #define ACPI_SBS_FILE_STATE		"state"
@@ -124,10 +123,17 @@ static int acpi_sbs_add(struct acpi_device *device);
 static int acpi_sbs_remove(struct acpi_device *device, int type);
 static int acpi_sbs_resume(struct acpi_device *device);
 
+static const struct acpi_device_id sbs_device_ids[] = {
+	{"ACPI0001", 0},
+	{"ACPI0005", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
+
 static struct acpi_driver acpi_sbs_driver = {
 	.name = "sbs",
 	.class = ACPI_SBS_CLASS,
-	.ids = "ACPI0001,ACPI0005",
+	.ids = sbs_device_ids,
 	.ops = {
 		.add = acpi_sbs_add,
 		.remove = acpi_sbs_remove,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 6b3b8a52247..be74347d135 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -16,7 +16,7 @@ ACPI_MODULE_NAME("scan");
 extern struct acpi_device *acpi_root;
 
 #define ACPI_BUS_CLASS			"system_bus"
-#define ACPI_BUS_HID			"ACPI_BUS"
+#define ACPI_BUS_HID			"LNXSYBUS"
 #define ACPI_BUS_DEVICE_NAME		"System Bus"
 
 static LIST_HEAD(acpi_device_list);
@@ -29,6 +29,62 @@ struct acpi_device_bus_id{
 	unsigned int instance_no;
 	struct list_head node;
 };
+
+/*
+ * Creates hid/cid(s) string needed for modalias and uevent
+ * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
+ * char *modalias: "acpi:IBM0001:ACPI0001"
+*/
+int create_modalias(struct acpi_device *acpi_dev, char *modalias, int size){
+
+	int len;
+
+	if (!acpi_dev->flags.hardware_id)
+		return -ENODEV;
+
+	len = snprintf(modalias, size, "acpi:%s:",
+		       acpi_dev->pnp.hardware_id);
+	if (len < 0 || len >= size)
+		return -EINVAL;
+	size -= len;
+
+	if (acpi_dev->flags.compatible_ids) {
+		struct acpi_compatible_id_list *cid_list;
+		int i;
+		int count;
+
+		cid_list = acpi_dev->pnp.cid_list;
+		for (i = 0; i < cid_list->count; i++) {
+			count = snprintf(&modalias[len], size, "%s:",
+					 cid_list->id[i].value);
+			if (count < 0 || count >= size) {
+				printk(KERN_ERR "acpi: %s cid[%i] exceeds event buffer size",
+				       acpi_dev->pnp.device_name, i);
+				break;
+			}
+			len += count;
+			size -= count;
+		}
+	}
+
+	modalias[len] = '\0';
+	return len;
+}
+
+static ssize_t
+acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) {
+	struct acpi_device *acpi_dev = to_acpi_device(dev);
+	int len;
+
+	/* Device has no HID and no CID or string is >1024 */
+	len = create_modalias(acpi_dev, buf, 1024);
+	if (len <= 0)
+		return 0;
+	buf[len++] = '\n';
+	return len;
+}
+static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
+
 static int acpi_eject_operation(acpi_handle handle, int lockable)
 {
 	struct acpi_object_list arg_list;
@@ -154,6 +210,12 @@ static int acpi_device_setup_files(struct acpi_device *dev)
 			goto end;
 	}
 
+	if (dev->flags.hardware_id || dev->flags.compatible_ids){
+		result = device_create_file(&dev->dev, &dev_attr_modalias);
+		if(result)
+			goto end;
+	}
+
         /*
          * If device has _EJ0, 'eject' file is created that is used to trigger
          * hot-removal function from userland.
@@ -178,6 +240,9 @@ static void acpi_device_remove_files(struct acpi_device *dev)
 	if (ACPI_SUCCESS(status))
 		device_remove_file(&dev->dev, &dev_attr_eject);
 
+	if (dev->flags.hardware_id || dev->flags.compatible_ids)
+		device_remove_file(&dev->dev, &dev_attr_modalias);
+
 	if(dev->flags.hardware_id)
 		device_remove_file(&dev->dev, &dev_attr_hid);
 	if(dev->handle)