Merge thermal core changes for 6.9 to satisfy a dependency.

arch/arm/configs/imx_v6_v7_defconfig

@@ -228,7 +228,6 @@ CONFIG_SENSORS_IIO_HWMON=y
 CONFIG_SENSORS_PWM_FAN=y
 CONFIG_SENSORS_SY7636A=y
 CONFIG_THERMAL_STATISTICS=y
-CONFIG_THERMAL_WRITABLE_TRIPS=y
 CONFIG_CPU_THERMAL=y
 CONFIG_IMX_THERMAL=y
 CONFIG_WATCHDOG=y

drivers/acpi/thermal.c

@@ -47,6 +47,8 @@
 
 #define ACPI_THERMAL_TRIP_PASSIVE	(-1)
 
+#define ACPI_THERMAL_MAX_NR_TRIPS	(ACPI_THERMAL_MAX_ACTIVE + 3)
+
 /*
  * This exception is thrown out in two cases:
  * 1.An invalid trip point becomes invalid or a valid trip point becomes invalid
@@ -112,7 +114,6 @@ struct acpi_thermal {
 	unsigned long polling_frequency;
 	volatile u8 zombie;
 	struct acpi_thermal_trips trips;
-	struct thermal_trip *trip_table;
 	struct thermal_zone_device *thermal_zone;
 	int kelvin_offset;	/* in millidegrees */
 	struct work_struct thermal_check_work;
@@ -451,26 +452,19 @@ static bool acpi_thermal_init_trip(struct acpi_thermal *tz, int index)
 	return false;
 }
 
-static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
+static void acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 {
-	unsigned int count = 0;
 	int i;
 
-	if (acpi_thermal_init_trip(tz, ACPI_THERMAL_TRIP_PASSIVE))
-		count++;
+	acpi_thermal_init_trip(tz, ACPI_THERMAL_TRIP_PASSIVE);
 
 	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
-		if (acpi_thermal_init_trip(tz, i))
-			count++;
-		else
+		if (!acpi_thermal_init_trip(tz, i))
 			break;
-
 	}
 
 	while (++i < ACPI_THERMAL_MAX_ACTIVE)
 		tz->trips.active[i].trip.temp_dk = THERMAL_TEMP_INVALID;
-
-	return count;
 }
 
 /* sys I/F for generic thermal sysfs support */
@@ -626,7 +620,7 @@ acpi_thermal_unbind_cooling_device(struct thermal_zone_device *thermal,
 	return acpi_thermal_bind_unbind_cdev(thermal, cdev, false);
 }
 
-static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
+static const struct thermal_zone_device_ops acpi_thermal_zone_ops = {
 	.bind = acpi_thermal_bind_cooling_device,
 	.unbind	= acpi_thermal_unbind_cooling_device,
 	.get_temp = thermal_get_temp,
@@ -662,15 +656,16 @@ static void acpi_thermal_zone_sysfs_remove(struct acpi_thermal *tz)
 }
 
 static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz,
+					      const struct thermal_trip *trip_table,
 					      unsigned int trip_count,
 					      int passive_delay)
 {
 	int result;
 
 	tz->thermal_zone = thermal_zone_device_register_with_trips("acpitz",
-								   tz->trip_table,
+								   trip_table,
 								   trip_count,
-								   0, tz,
+								   tz,
 								   &acpi_thermal_zone_ops,
 								   NULL,
 								   passive_delay,
@@ -823,10 +818,10 @@ static void acpi_thermal_free_thermal_zone(struct acpi_thermal *tz)
 
 static int acpi_thermal_add(struct acpi_device *device)
 {
+	struct thermal_trip trip_table[ACPI_THERMAL_MAX_NR_TRIPS] = { 0 };
 	struct acpi_thermal_trip *acpi_trip;
 	struct thermal_trip *trip;
 	struct acpi_thermal *tz;
-	unsigned int trip_count;
 	int crit_temp, hot_temp;
 	int passive_delay = 0;
 	int result;
@@ -848,21 +843,10 @@ static int acpi_thermal_add(struct acpi_device *device)
 	acpi_thermal_aml_dependency_fix(tz);
 
 	/* Get trip points [_CRT, _PSV, etc.] (required). */
-	trip_count = acpi_thermal_get_trip_points(tz);
+	acpi_thermal_get_trip_points(tz);
 
 	crit_temp = acpi_thermal_get_critical_trip(tz);
-	if (crit_temp != THERMAL_TEMP_INVALID)
-		trip_count++;
-
 	hot_temp = acpi_thermal_get_hot_trip(tz);
-	if (hot_temp != THERMAL_TEMP_INVALID)
-		trip_count++;
-
-	if (!trip_count) {
-		pr_warn(FW_BUG "No valid trip points!\n");
-		result = -ENODEV;
-		goto free_memory;
-	}
 
 	/* Get temperature [_TMP] (required). */
 	result = acpi_thermal_get_temperature(tz);
@@ -881,13 +865,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 
 	acpi_thermal_guess_offset(tz, crit_temp);
 
-	trip = kcalloc(trip_count, sizeof(*trip), GFP_KERNEL);
-	if (!trip) {
-		result = -ENOMEM;
-		goto free_memory;
-	}
-
-	tz->trip_table = trip;
+	trip = trip_table;
 
 	if (crit_temp != THERMAL_TEMP_INVALID) {
 		trip->type = THERMAL_TRIP_CRITICAL;
@@ -923,9 +901,17 @@ static int acpi_thermal_add(struct acpi_device *device)
 		trip++;
 	}
 
-	result = acpi_thermal_register_thermal_zone(tz, trip_count, passive_delay);
+	if (trip == trip_table) {
+		pr_warn(FW_BUG "No valid trip points!\n");
+		result = -ENODEV;
+		goto free_memory;
+	}
+
+	result = acpi_thermal_register_thermal_zone(tz, trip_table,
+						    trip - trip_table,
+						    passive_delay);
 	if (result)
-		goto free_trips;
+		goto free_memory;
 
 	refcount_set(&tz->thermal_check_count, 3);
 	mutex_init(&tz->thermal_check_lock);
@@ -944,8 +930,6 @@ static int acpi_thermal_add(struct acpi_device *device)
 flush_wq:
 	flush_workqueue(acpi_thermal_pm_queue);
 	acpi_thermal_unregister_thermal_zone(tz);
-free_trips:
-	kfree(tz->trip_table);
 free_memory:
 	acpi_thermal_free_thermal_zone(tz);
 
@@ -966,7 +950,6 @@ static void acpi_thermal_remove(struct acpi_device *device)
 
 	flush_workqueue(acpi_thermal_pm_queue);
 	acpi_thermal_unregister_thermal_zone(tz);
-	kfree(tz->trip_table);
 	acpi_thermal_free_thermal_zone(tz);
 }
 

drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c

@@ -60,7 +60,7 @@ int cxgb4_thermal_init(struct adapter *adap)
 
 	snprintf(ch_tz_name, sizeof(ch_tz_name), "cxgb4_%s", adap->name);
 	ch_thermal->tzdev = thermal_zone_device_register_with_trips(ch_tz_name, &trip, num_trip,
-								    0, adap,
+								    adap,
 								    &cxgb4_thermal_ops,
 								    NULL, 0, 0);
 	if (IS_ERR(ch_thermal->tzdev)) {

drivers/net/ethernet/mellanox/mlxsw/core_thermal.c

@@ -44,16 +44,19 @@ static const struct thermal_trip default_thermal_trips[] = {
 		.type		= THERMAL_TRIP_ACTIVE,
 		.temperature	= MLXSW_THERMAL_ASIC_TEMP_NORM,
 		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 	{
 		/* In range - 40-100% PWM */
 		.type		= THERMAL_TRIP_ACTIVE,
 		.temperature	= MLXSW_THERMAL_ASIC_TEMP_HIGH,
 		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 	{	/* Warning */
 		.type		= THERMAL_TRIP_HOT,
 		.temperature	= MLXSW_THERMAL_ASIC_TEMP_HOT,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 };
 
@@ -62,16 +65,19 @@ static const struct thermal_trip default_thermal_module_trips[] = {
 		.type		= THERMAL_TRIP_ACTIVE,
 		.temperature	= MLXSW_THERMAL_MODULE_TEMP_NORM,
 		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 	{
 		/* In range - 40-100% PWM */
 		.type		= THERMAL_TRIP_ACTIVE,
 		.temperature	= MLXSW_THERMAL_MODULE_TEMP_HIGH,
 		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 	{	/* Warning */
 		.type		= THERMAL_TRIP_HOT,
 		.temperature	= MLXSW_THERMAL_MODULE_TEMP_HOT,
+		.flags		= THERMAL_TRIP_FLAG_RW_TEMP,
 	},
 };
 
@@ -92,9 +98,6 @@ static const struct mlxsw_cooling_states default_cooling_states[] = {
 
 #define MLXSW_THERMAL_NUM_TRIPS	ARRAY_SIZE(default_thermal_trips)
 
-/* Make sure all trips are writable */
-#define MLXSW_THERMAL_TRIP_MASK	(BIT(MLXSW_THERMAL_NUM_TRIPS) - 1)
-
 struct mlxsw_thermal;
 
 struct mlxsw_thermal_module {
@@ -420,7 +423,6 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
 	module_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
 							module_tz->trips,
 							MLXSW_THERMAL_NUM_TRIPS,
-							MLXSW_THERMAL_TRIP_MASK,
 							module_tz,
 							&mlxsw_thermal_module_ops,
 							&mlxsw_thermal_params,
@@ -548,7 +550,6 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
 	gearbox_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
 						gearbox_tz->trips,
 						MLXSW_THERMAL_NUM_TRIPS,
-						MLXSW_THERMAL_TRIP_MASK,
 						gearbox_tz,
 						&mlxsw_thermal_gearbox_ops,
 						&mlxsw_thermal_params, 0,
@@ -773,7 +774,6 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
 	thermal->tzdev = thermal_zone_device_register_with_trips("mlxsw",
 						      thermal->trips,
 						      MLXSW_THERMAL_NUM_TRIPS,
-						      MLXSW_THERMAL_TRIP_MASK,
 						      thermal,
 						      &mlxsw_thermal_ops,
 						      &mlxsw_thermal_params, 0,

drivers/net/wireless/intel/iwlwifi/mvm/tt.c

@@ -667,9 +667,6 @@ static  struct thermal_zone_device_ops tzone_ops = {
 	.set_trip_temp = iwl_mvm_tzone_set_trip_temp,
 };
 
-/* make all trips writable */
-#define IWL_WRITABLE_TRIPS_MSK (BIT(IWL_MAX_DTS_TRIPS) - 1)
-
 static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 {
 	int i, ret;
@@ -692,11 +689,11 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 	for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++) {
 		mvm->tz_device.trips[i].temperature = THERMAL_TEMP_INVALID;
 		mvm->tz_device.trips[i].type = THERMAL_TRIP_PASSIVE;
+		mvm->tz_device.trips[i].flags = THERMAL_TRIP_FLAG_RW_TEMP;
 	}
 	mvm->tz_device.tzone = thermal_zone_device_register_with_trips(name,
 							mvm->tz_device.trips,
 							IWL_MAX_DTS_TRIPS,
-							IWL_WRITABLE_TRIPS_MSK,
 							mvm, &tzone_ops,
 							NULL, 0, 0);
 	if (IS_ERR(mvm->tz_device.tzone)) {

drivers/platform/x86/acerhdf.c

@@ -678,7 +678,7 @@ static int __init acerhdf_register_thermal(void)
 		return -EINVAL;
 
 	thz_dev = thermal_zone_device_register_with_trips("acerhdf", trips, ARRAY_SIZE(trips),
-							  0, NULL, &acerhdf_dev_ops,
+							  NULL, &acerhdf_dev_ops,
 							  &acerhdf_zone_params, 0,
 							  (kernelmode) ? interval*1000 : 0);
 	if (IS_ERR(thz_dev))

drivers/thermal/Kconfig

@@ -83,17 +83,6 @@ config THERMAL_OF
 	  Say 'Y' here if you need to build thermal infrastructure
 	  based on device tree.
 
-config THERMAL_WRITABLE_TRIPS
-	bool "Enable writable trip points"
-	help
-	  This option allows the system integrator to choose whether
-	  trip temperatures can be changed from userspace. The
-	  writable trips need to be specified when setting up the
-	  thermal zone but the choice here takes precedence.
-
-	  Say 'Y' here if you would like to allow userspace tools to
-	  change trip temperatures.
-
 choice
 	prompt "Default Thermal governor"
 	default THERMAL_DEFAULT_GOV_STEP_WISE

drivers/thermal/da9062-thermal.c

@@ -197,7 +197,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
 	mutex_init(&thermal->lock);
 
 	thermal->zone = thermal_zone_device_register_with_trips(thermal->config->name,
-								trips, ARRAY_SIZE(trips), 0, thermal,
+								trips, ARRAY_SIZE(trips), thermal,
 								&da9062_thermal_ops, NULL, pp_tmp,
 								0);
 	if (IS_ERR(thermal->zone)) {

drivers/thermal/imx_thermal.c

@@ -115,7 +115,8 @@ struct thermal_soc_data {
 };
 
 static struct thermal_trip trips[] = {
-	[IMX_TRIP_PASSIVE]  = { .type = THERMAL_TRIP_PASSIVE  },
+	[IMX_TRIP_PASSIVE]  = { .type = THERMAL_TRIP_PASSIVE,
+				.flags = THERMAL_TRIP_FLAG_RW_TEMP },
 	[IMX_TRIP_CRITICAL] = { .type = THERMAL_TRIP_CRITICAL },
 };
 
@@ -354,6 +355,7 @@ static int imx_set_trip_temp(struct thermal_zone_device *tz, int trip_id,
 		return -EINVAL;
 
 	imx_set_alarm_temp(data, temp);
+	trips[IMX_TRIP_PASSIVE].temperature = temp;
 
 	pm_runtime_put(data->dev);
 
@@ -699,7 +701,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
 	data->tz = thermal_zone_device_register_with_trips("imx_thermal_zone",
 							   trips,
 							   ARRAY_SIZE(trips),
-							   BIT(IMX_TRIP_PASSIVE), data,
+							   data,
 							   &imx_tz_ops, NULL,
 							   IMX_PASSIVE_DELAY,
 							   IMX_POLLING_DELAY);

drivers/thermal/intel/Kconfig

@@ -23,7 +23,6 @@ config X86_PKG_TEMP_THERMAL
 	tristate "X86 package temperature thermal driver"
 	depends on X86_THERMAL_VECTOR
 	select THERMAL_GOV_USER_SPACE
-	select THERMAL_WRITABLE_TRIPS
 	select INTEL_TCC
 	default m
 	help
@@ -47,7 +46,6 @@ config INTEL_SOC_DTS_THERMAL
 	tristate "Intel SoCs DTS thermal driver"
 	depends on X86 && PCI && ACPI
 	select INTEL_SOC_DTS_IOSF_CORE
-	select THERMAL_WRITABLE_TRIPS
 	help
 	  Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
 	  temperature sensor (DTS). These SoCs have two additional DTSs in