Merge ACPI thermal driver changes for 6.6-rc1.

This reworks the ACPI thermal driver to use a table of generic trip
point structures on top of the internal representation of trip points
and removes thermal zone callbacks that are not necessary any more
from it.

It requires some relatively small changes to be made in the thermal core
too and it is based on top of changes reworking ACPI device notification
handling that are included in this merge.

* acpi-thermal: (24 commits)
  ACPI: thermal: Eliminate code duplication from acpi_thermal_notify()
  ACPI: thermal: Drop unnecessary thermal zone callbacks
  ACPI: thermal: Rework thermal_get_trend()
  ACPI: thermal: Use trip point table to register thermal zones
  thermal: core: Rework and rename __for_each_thermal_trip()
  ACPI: thermal: Introduce struct acpi_thermal_trip
  ACPI: thermal: Carry out trip point updates under zone lock
  ACPI: thermal: Clean up acpi_thermal_register_thermal_zone()
  thermal: core: Add priv pointer to struct thermal_trip
  thermal: core: Introduce thermal_zone_device_exec()
  thermal: core: Do not handle trip points with invalid temperature
  ACPI: thermal: Drop redundant local variable from acpi_thermal_resume()
  ACPI: thermal: Do not attach private data to ACPI handles
  ACPI: thermal: Drop enabled flag from struct acpi_thermal_active
  ACPI: thermal: Drop nocrt parameter
  ACPI: thermal: Install Notify() handler directly
  ACPI: NFIT: Remove unnecessary .remove callback
  ACPI: NFIT: Install Notify() handler directly
  ACPI: HED: Install Notify() handler directly
  ACPI: battery: Install Notify() handler directly
  ...

3 files changed, 29 insertions, 15 deletions

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index cc2b5e81c620..a59700593d32 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -348,7 +348,8 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip_id)
 	struct thermal_trip trip;
 
 	/* Ignore disabled trip points */
-	if (test_bit(trip_id, &tz->trips_disabled))
+	if (test_bit(trip_id, &tz->trips_disabled) ||
+	    trip.temperature == THERMAL_TEMP_INVALID)
 		return;
 
 	__thermal_zone_get_trip(tz, trip_id, &trip);
@@ -496,6 +497,25 @@ void thermal_zone_device_update(struct thermal_zone_device *tz,
 }
 EXPORT_SYMBOL_GPL(thermal_zone_device_update);
 
+/**
+ * thermal_zone_device_exec - Run a callback under the zone lock.
+ * @tz: Thermal zone.
+ * @cb: Callback to run.
+ * @data: Data to pass to the callback.
+ */
+void thermal_zone_device_exec(struct thermal_zone_device *tz,
+			      void (*cb)(struct thermal_zone_device *,
+					 unsigned long),
+			      unsigned long data)
+{
+	mutex_lock(&tz->lock);
+
+	cb(tz, data);
+
+	mutex_unlock(&tz->lock);
+}
+EXPORT_SYMBOL_GPL(thermal_zone_device_exec);
+
 static void thermal_zone_device_check(struct work_struct *work)
 {
 	struct thermal_zone_device *tz = container_of(work, struct
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 17c1bbed734d..04513f9fbfa1 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -54,10 +54,6 @@ int for_each_thermal_cooling_device(int (*cb)(struct thermal_cooling_device *,
 int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
 			      void *thermal_governor);
 
-int __for_each_thermal_trip(struct thermal_zone_device *,
-			    int (*cb)(struct thermal_trip *, void *),
-			    void *);
-
 struct thermal_zone_device *thermal_zone_get_by_id(int id);
 
 struct thermal_attr {
diff --git a/drivers/thermal/thermal_trip.c b/drivers/thermal/thermal_trip.c
index 907f3a4d7bc8..53115cfdfd42 100644
--- a/drivers/thermal/thermal_trip.c
+++ b/drivers/thermal/thermal_trip.c
@@ -9,28 +9,26 @@
  */
 #include "thermal_core.h"
 
-int __for_each_thermal_trip(struct thermal_zone_device *tz,
-			    int (*cb)(struct thermal_trip *, void *),
-			    void *data)
+int for_each_thermal_trip(struct thermal_zone_device *tz,
+			  int (*cb)(struct thermal_trip *, void *),
+			  void *data)
 {
 	int i, ret;
-	struct thermal_trip trip;
 
 	lockdep_assert_held(&tz->lock);
 
-	for (i = 0; i < tz->num_trips; i++) {
-
-		ret = __thermal_zone_get_trip(tz, i, &trip);
-		if (ret)
-			return ret;
+	if (!tz->trips)
+		return -ENODATA;
 
-		ret = cb(&trip, data);
+	for (i = 0; i < tz->num_trips; i++) {
+		ret = cb(&tz->trips[i], data);
 		if (ret)
 			return ret;
 	}
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(for_each_thermal_trip);
 
 int thermal_zone_get_num_trips(struct thermal_zone_device *tz)
 {