Merge branches 'acpi-battery' and 'pm-cpufreq'

* acpi-battery:
  ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS

* pm-cpufreq:
  intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 8711e37..3c2e4aa 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -207,7 +207,7 @@
 		goto end;
 
 	result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
-			ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler, ac);
+			ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac);
 	if (result) {
 		power_supply_unregister(&ac->charger);
 		goto end;
@@ -255,7 +255,7 @@
 		return -EINVAL;
 
 	acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
-			ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler);
+			ACPI_ALL_NOTIFY, acpi_ac_notify_handler);
 
 	ac = platform_get_drvdata(pdev);
 	if (ac->charger.dev)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index fbf1ace..5876a49 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -62,6 +62,7 @@
 MODULE_DESCRIPTION("ACPI Battery Driver");
 MODULE_LICENSE("GPL");
 
+static int battery_bix_broken_package;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -416,7 +417,12 @@
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name));
 		return -ENODEV;
 	}
-	if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
+
+	if (battery_bix_broken_package)
+		result = extract_package(battery, buffer.pointer,
+				extended_info_offsets + 1,
+				ARRAY_SIZE(extended_info_offsets) - 1);
+	else if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
 		result = extract_package(battery, buffer.pointer,
 				extended_info_offsets,
 				ARRAY_SIZE(extended_info_offsets));
@@ -754,6 +760,17 @@
 	return 0;
 }
 
+static struct dmi_system_id bat_dmi_table[] = {
+	{
+		.ident = "NEC LZ750/LS",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "NEC"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"),
+		},
+	},
+	{},
+};
+
 static int acpi_battery_add(struct acpi_device *device)
 {
 	int result = 0;
@@ -846,6 +863,9 @@
 {
 	if (acpi_disabled)
 		return;
+
+	if (dmi_check_system(bat_dmi_table))
+		battery_bix_broken_package = 1;
 	acpi_bus_register_driver(&acpi_battery_driver);
 }
 
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index 8e562dc..e1f3337 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -27,15 +27,18 @@
 static acpi_status ppi_callback(acpi_handle handle, u32 level, void *context,
 				void **return_value)
 {
-	acpi_status status;
+	acpi_status status = AE_OK;
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-	status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-	if (strstr(buffer.pointer, context) != NULL) {
-		*return_value = handle;
+
+	if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer))) {
+		if (strstr(buffer.pointer, context) != NULL) {
+			*return_value = handle;
+			status = AE_CTRL_TERMINATE;
+		}
 		kfree(buffer.pointer);
-		return AE_CTRL_TERMINATE;
 	}
-	return AE_OK;
+
+	return status;
 }
 
 static inline void ppi_assign_params(union acpi_object params[4],