Merge tag 'pm+acpi-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:

 - Introduction of device PM QoS flags.

 - ACPI device power management update allowing subsystems other than
   PCI to use it more easily.

 - ACPI device enumeration rework allowing additional kinds of devices
   to be enumerated via ACPI.  From Mika Westerberg, Adrian Hunter,
   Mathias Nyman, Andy Shevchenko, and Rafael J. Wysocki.

 - ACPICA update to version 20121018 from Bob Moore and Lv Zheng.

 - ACPI memory hotplug update from Wen Congyang and Yasuaki Ishimatsu.

 - Introduction of acpi_handle_<level>() messaging macros and ACPI-based
   CPU hot-remove support from Toshi Kani.

 - ACPI EC updates from Feng Tang.

 - cpufreq updates from Viresh Kumar, Fabio Baltieri and others.

 - cpuidle changes to quickly notice governor prediction failure from
   Youquan Song.

 - Support for using multiple cpuidle drivers at the same time and
   cpuidle cleanups from Daniel Lezcano.

 - devfreq updates from Nishanth Menon and others.

 - cpupower update from Thomas Renninger.

 - Fixes and small cleanups all over the place.

* tag 'pm+acpi-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (196 commits)
  mmc: sdhci-acpi: enable runtime-pm for device HID INT33C6
  ACPI: add Haswell LPSS devices to acpi_platform_device_ids list
  ACPI: add documentation about ACPI 5 enumeration
  pnpacpi: fix incorrect TEST_ALPHA() test
  ACPI / PM: Fix header of acpi_dev_pm_detach() in acpi.h
  ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
  ACPI : do not use Lid and Sleep button for S5 wakeup
  ACPI / PNP: Do not crash due to stale pointer use during system resume
  ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist
  ACPI: do acpisleep dmi check when CONFIG_ACPI_SLEEP is set
  spi / ACPI: add ACPI enumeration support
  gpio / ACPI: add ACPI support
  PM / devfreq: remove compiler error with module governors (2)
  cpupower: IvyBridge (0x3a and 0x3e models) support
  cpupower: Provide -c param for cpupower monitor to schedule process on all cores
  cpupower tools: Fix warning and a bug with the cpu package count
  cpupower tools: Fix malloc of cpu_info structure
  cpupower tools: Fix issues with sysfs_topology_read_file
  cpupower tools: Fix minor warnings
  cpupower tools: Update .gitignore for files created in the debug directories
  ...

1 files changed, 87 insertions, 17 deletions

diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 5d84e1954575..774c3aefbf5d 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -67,10 +67,10 @@ ACPI_MODULE_NAME("utids")
  ******************************************************************************/
 acpi_status
 acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
-		    struct acpica_device_id **return_id)
+		    struct acpi_pnp_device_id **return_id)
 {
 	union acpi_operand_object *obj_desc;
-	struct acpica_device_id *hid;
+	struct acpi_pnp_device_id *hid;
 	u32 length;
 	acpi_status status;
 
@@ -94,16 +94,17 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
 	/* Allocate a buffer for the HID */
 
 	hid =
-	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
+	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pnp_device_id) +
 				 (acpi_size) length);
 	if (!hid) {
 		status = AE_NO_MEMORY;
 		goto cleanup;
 	}
 
-	/* Area for the string starts after DEVICE_ID struct */
+	/* Area for the string starts after PNP_DEVICE_ID struct */
 
-	hid->string = ACPI_ADD_PTR(char, hid, sizeof(struct acpica_device_id));
+	hid->string =
+	    ACPI_ADD_PTR(char, hid, sizeof(struct acpi_pnp_device_id));
 
 	/* Convert EISAID to a string or simply copy existing string */
 
@@ -126,6 +127,73 @@ cleanup:
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_execute_SUB
+ *
+ * PARAMETERS:  device_node         - Node for the device
+ *              return_id           - Where the _SUB is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Executes the _SUB control method that returns the subsystem
+ *              ID of the device. The _SUB value is always a string containing
+ *              either a valid PNP or ACPI ID.
+ *
+ *              NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_SUB(struct acpi_namespace_node *device_node,
+		    struct acpi_pnp_device_id **return_id)
+{
+	union acpi_operand_object *obj_desc;
+	struct acpi_pnp_device_id *sub;
+	u32 length;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(ut_execute_SUB);
+
+	status = acpi_ut_evaluate_object(device_node, METHOD_NAME__SUB,
+					 ACPI_BTYPE_STRING, &obj_desc);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Get the size of the String to be returned, includes null terminator */
+
+	length = obj_desc->string.length + 1;
+
+	/* Allocate a buffer for the SUB */
+
+	sub =
+	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pnp_device_id) +
+				 (acpi_size) length);
+	if (!sub) {
+		status = AE_NO_MEMORY;
+		goto cleanup;
+	}
+
+	/* Area for the string starts after PNP_DEVICE_ID struct */
+
+	sub->string =
+	    ACPI_ADD_PTR(char, sub, sizeof(struct acpi_pnp_device_id));
+
+	/* Simply copy existing string */
+
+	ACPI_STRCPY(sub->string, obj_desc->string.pointer);
+	sub->length = length;
+	*return_id = sub;
+
+      cleanup:
+
+	/* On exit, we must delete the return object */
+
+	acpi_ut_remove_reference(obj_desc);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_execute_UID
  *
  * PARAMETERS:  device_node         - Node for the device
@@ -144,10 +212,10 @@ cleanup:
 
 acpi_status
 acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
-		    struct acpica_device_id **return_id)
+		    struct acpi_pnp_device_id **return_id)
 {
 	union acpi_operand_object *obj_desc;
-	struct acpica_device_id *uid;
+	struct acpi_pnp_device_id *uid;
 	u32 length;
 	acpi_status status;
 
@@ -171,16 +239,17 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
 	/* Allocate a buffer for the UID */
 
 	uid =
-	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
+	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pnp_device_id) +
 				 (acpi_size) length);
 	if (!uid) {
 		status = AE_NO_MEMORY;
 		goto cleanup;
 	}
 
-	/* Area for the string starts after DEVICE_ID struct */
+	/* Area for the string starts after PNP_DEVICE_ID struct */
 
-	uid->string = ACPI_ADD_PTR(char, uid, sizeof(struct acpica_device_id));
+	uid->string =
+	    ACPI_ADD_PTR(char, uid, sizeof(struct acpi_pnp_device_id));
 
 	/* Convert an Integer to string, or just copy an existing string */
 
@@ -226,11 +295,11 @@ cleanup:
 
 acpi_status
 acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
-		    struct acpica_device_id_list **return_cid_list)
+		    struct acpi_pnp_device_id_list **return_cid_list)
 {
 	union acpi_operand_object **cid_objects;
 	union acpi_operand_object *obj_desc;
-	struct acpica_device_id_list *cid_list;
+	struct acpi_pnp_device_id_list *cid_list;
 	char *next_id_string;
 	u32 string_area_size;
 	u32 length;
@@ -288,11 +357,12 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
 	/*
 	 * Now that we know the length of the CIDs, allocate return buffer:
 	 * 1) Size of the base structure +
-	 * 2) Size of the CID DEVICE_ID array +
+	 * 2) Size of the CID PNP_DEVICE_ID array +
 	 * 3) Size of the actual CID strings
 	 */
-	cid_list_size = sizeof(struct acpica_device_id_list) +
-	    ((count - 1) * sizeof(struct acpica_device_id)) + string_area_size;
+	cid_list_size = sizeof(struct acpi_pnp_device_id_list) +
+	    ((count - 1) * sizeof(struct acpi_pnp_device_id)) +
+	    string_area_size;
 
 	cid_list = ACPI_ALLOCATE_ZEROED(cid_list_size);
 	if (!cid_list) {
@@ -300,10 +370,10 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
 		goto cleanup;
 	}
 
-	/* Area for CID strings starts after the CID DEVICE_ID array */
+	/* Area for CID strings starts after the CID PNP_DEVICE_ID array */
 
 	next_id_string = ACPI_CAST_PTR(char, cid_list->ids) +
-	    ((acpi_size) count * sizeof(struct acpica_device_id));
+	    ((acpi_size) count * sizeof(struct acpi_pnp_device_id));
 
 	/* Copy/convert the CIDs to the return buffer */