From 7251b9e8a007ddd834aa81f8c7ea338884629fec Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 6 Feb 2024 09:54:09 +0800
Subject: thermal/intel: Fix intel_tcc_get_temp() to support negative CPU
 temperature

CPU temperature can be negative in some cases. Thus the negative CPU
temperature should not be considered as a failure.

Fix intel_tcc_get_temp() and its users to support negative CPU
temperature.

Fixes: a3c1f066e1c5 ("thermal/intel: Introduce Intel TCC library")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Cc: 6.3+ <stable@vger.kernel.org> # 6.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 .../thermal/intel/int340x_thermal/processor_thermal_device.c |  8 ++++----
 drivers/thermal/intel/intel_tcc.c                            | 12 ++++++------
 drivers/thermal/intel/x86_pkg_temp_thermal.c                 |  8 ++++----
 3 files changed, 14 insertions(+), 14 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
index 649f67fdf345..d75fae7b7ed2 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
@@ -176,14 +176,14 @@ static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone,
 					 int *temp)
 {
 	int cpu;
-	int curr_temp;
+	int curr_temp, ret;
 
 	*temp = 0;
 
 	for_each_online_cpu(cpu) {
-		curr_temp = intel_tcc_get_temp(cpu, false);
-		if (curr_temp < 0)
-			return curr_temp;
+		ret = intel_tcc_get_temp(cpu, &curr_temp, false);
+		if (ret < 0)
+			return ret;
 		if (!*temp || curr_temp > *temp)
 			*temp = curr_temp;
 	}
diff --git a/drivers/thermal/intel/intel_tcc.c b/drivers/thermal/intel/intel_tcc.c
index 2e5c741c41ca..5e8b7f34b395 100644
--- a/drivers/thermal/intel/intel_tcc.c
+++ b/drivers/thermal/intel/intel_tcc.c
@@ -103,18 +103,19 @@ EXPORT_SYMBOL_NS_GPL(intel_tcc_set_offset, INTEL_TCC);
 /**
  * intel_tcc_get_temp() - returns the current temperature
  * @cpu: cpu that the MSR should be run on, nagative value means any cpu.
+ * @temp: pointer to the memory for saving cpu temperature.
  * @pkg: true: Package Thermal Sensor. false: Core Thermal Sensor.
  *
  * Get the current temperature returned by the CPU core/package level
  * thermal sensor, in degrees C.
  *
- * Return: Temperature in degrees C on success, negative error code otherwise.
+ * Return: 0 on success, negative error code otherwise.
  */
-int intel_tcc_get_temp(int cpu, bool pkg)
+int intel_tcc_get_temp(int cpu, int *temp, bool pkg)
 {
 	u32 low, high;
 	u32 msr = pkg ? MSR_IA32_PACKAGE_THERM_STATUS : MSR_IA32_THERM_STATUS;
-	int tjmax, temp, err;
+	int tjmax, err;
 
 	tjmax = intel_tcc_get_tjmax(cpu);
 	if (tjmax < 0)
@@ -131,9 +132,8 @@ int intel_tcc_get_temp(int cpu, bool pkg)
 	if (!(low & BIT(31)))
 		return -ENODATA;
 
-	temp = tjmax - ((low >> 16) & 0x7f);
+	*temp = tjmax - ((low >> 16) & 0x7f);
 
-	/* Do not allow negative CPU temperature */
-	return temp >= 0 ? temp : -ENODATA;
+	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(intel_tcc_get_temp, INTEL_TCC);
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 11a7f8108bbb..61c3d450ee60 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -108,11 +108,11 @@ static struct zone_device *pkg_temp_thermal_get_dev(unsigned int cpu)
 static int sys_get_curr_temp(struct thermal_zone_device *tzd, int *temp)
 {
 	struct zone_device *zonedev = thermal_zone_device_priv(tzd);
-	int val;
+	int val, ret;
 
-	val = intel_tcc_get_temp(zonedev->cpu, true);
-	if (val < 0)
-		return val;
+	ret = intel_tcc_get_temp(zonedev->cpu, &val, true);
+	if (ret < 0)
+		return ret;
 
 	*temp = val * 1000;
 	pr_debug("sys_get_curr_temp %d\n", *temp);
-- 
cgit v1.2.3


From fcbf8780008609380d2e5b407c5bb7950fff018c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 5 Feb 2024 22:16:59 +0100
Subject: thermal: intel: Discard trip tables after zone registration

Because the thermal core creates and uses its own copy of the trips
table passed to thermal_zone_device_register_with_trips(), it is not
necessary to hold on to a local copy of it any more after the given
thermal zone has been registered.

Accordingly, modify Intel thermal drivers to discard the trips tables
passed to thermal_zone_device_register_with_trips() after thermal zone
registration, for example by storing them in local variables which are
automatically discarded when the zone registration is complete.

Also make some additional code simplifications unlocked by the above
changes.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../intel/int340x_thermal/int340x_thermal_zone.c   |  6 ++--
 .../intel/int340x_thermal/int340x_thermal_zone.h   |  1 -
 .../int340x_thermal/processor_thermal_device_pci.c |  7 ++--
 drivers/thermal/intel/intel_pch_thermal.c          | 24 +++++++-------
 drivers/thermal/intel/intel_quark_dts_thermal.c    | 12 +++----
 drivers/thermal/intel/intel_soc_dts_iosf.c         | 38 +++++++++-------------
 drivers/thermal/intel/intel_soc_dts_iosf.h         |  1 -
 drivers/thermal/intel/x86_pkg_temp_thermal.c       | 35 +++++++-------------
 8 files changed, 51 insertions(+), 73 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 3e4bfe817fac..950e91ca5f42 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -179,8 +179,6 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	for (i = 0; i < trip_cnt; ++i)
 		zone_trips[i].hysteresis = hyst;
 
-	int34x_zone->trips = zone_trips;
-
 	int34x_zone->lpat_table = acpi_lpat_get_conversion_table(adev->handle);
 
 	int34x_zone->zone = thermal_zone_device_register_with_trips(
@@ -190,6 +188,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 							int34x_zone->ops,
 							&int340x_thermal_params,
 							0, 0);
+	kfree(zone_trips);
+
 	if (IS_ERR(int34x_zone->zone)) {
 		ret = PTR_ERR(int34x_zone->zone);
 		goto err_thermal_zone;
@@ -203,7 +203,6 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 err_enable:
 	thermal_zone_device_unregister(int34x_zone->zone);
 err_thermal_zone:
-	kfree(int34x_zone->trips);
 	acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
 err_trips_alloc:
 	kfree(int34x_zone->ops);
@@ -217,7 +216,6 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone *int34x_zone)
 {
 	thermal_zone_device_unregister(int34x_zone->zone);
 	acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
-	kfree(int34x_zone->trips);
 	kfree(int34x_zone->ops);
 	kfree(int34x_zone);
 }
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index e0df6271facc..91edc7f83d79 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -20,7 +20,6 @@ struct active_trip {
 
 struct int34x_thermal_zone {
 	struct acpi_device *adev;
-	struct thermal_trip *trips;
 	int aux_trip_nr;
 	struct thermal_zone_device *zone;
 	struct thermal_zone_device_ops *ops;
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index d7495571dd5d..bf47f319e3c6 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -233,10 +233,6 @@ static int get_trip_temp(struct proc_thermal_pci *pci_info)
 	return temp;
 }
 
-static struct thermal_trip psv_trip = {
-	.type = THERMAL_TRIP_PASSIVE,
-};
-
 static struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
 	.set_trip_temp	= sys_set_trip_temp,
@@ -251,6 +247,9 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device_
 {
 	struct proc_thermal_device *proc_priv;
 	struct proc_thermal_pci *pci_info;
+	struct thermal_trip psv_trip = {
+		.type = THERMAL_TRIP_PASSIVE,
+	};
 	int irq_flag = 0, irq, ret;
 	bool msi_irq = false;
 
diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index b3905e34c507..76a552870fe0 100644
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -84,7 +84,6 @@ struct pch_thermal_device {
 	void __iomem *hw_base;
 	struct pci_dev *pdev;
 	struct thermal_zone_device *tzd;
-	struct thermal_trip trips[PCH_MAX_TRIPS];
 	bool bios_enabled;
 };
 
@@ -94,7 +93,8 @@ struct pch_thermal_device {
  * passive trip temperature using _PSV method. There is no specific
  * passive temperature setting in MMIO interface of this PCI device.
  */
-static int pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd, int trip)
+static int pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd,
+				     struct thermal_trip *trip)
 {
 	struct acpi_device *adev;
 	int temp;
@@ -106,12 +106,13 @@ static int pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd, int trip)
 	if (thermal_acpi_passive_trip_temp(adev, &temp) || temp <= 0)
 		return 0;
 
-	ptd->trips[trip].type = THERMAL_TRIP_PASSIVE;
-	ptd->trips[trip].temperature = temp;
+	trip->type = THERMAL_TRIP_PASSIVE;
+	trip->temperature = temp;
 	return 1;
 }
 #else
-static int pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd, int trip)
+static int pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd,
+				     struct thermal_trip *trip)
 {
 	return 0;
 }
@@ -159,6 +160,7 @@ static const char *board_names[] = {
 static int intel_pch_thermal_probe(struct pci_dev *pdev,
 				   const struct pci_device_id *id)
 {
+	struct thermal_trip ptd_trips[PCH_MAX_TRIPS] = { 0 };
 	enum pch_board_ids board_id = id->driver_data;
 	struct pch_thermal_device *ptd;
 	int nr_trips = 0;
@@ -220,21 +222,21 @@ read_trips:
 	trip_temp = readw(ptd->hw_base + WPT_CTT);
 	trip_temp &= 0x1FF;
 	if (trip_temp) {
-		ptd->trips[nr_trips].temperature = GET_WPT_TEMP(trip_temp);
-		ptd->trips[nr_trips++].type = THERMAL_TRIP_CRITICAL;
+		ptd_trips[nr_trips].temperature = GET_WPT_TEMP(trip_temp);
+		ptd_trips[nr_trips++].type = THERMAL_TRIP_CRITICAL;
 	}
 
 	trip_temp = readw(ptd->hw_base + WPT_PHL);
 	trip_temp &= 0x1FF;
 	if (trip_temp) {
-		ptd->trips[nr_trips].temperature = GET_WPT_TEMP(trip_temp);
-		ptd->trips[nr_trips++].type = THERMAL_TRIP_HOT;
+		ptd_trips[nr_trips].temperature = GET_WPT_TEMP(trip_temp);
+		ptd_trips[nr_trips++].type = THERMAL_TRIP_HOT;
 	}
 
-	nr_trips += pch_wpt_add_acpi_psv_trip(ptd, nr_trips);
+	nr_trips += pch_wpt_add_acpi_psv_trip(ptd, &ptd_trips[nr_trips]);
 
 	ptd->tzd = thermal_zone_device_register_with_trips(board_names[board_id],
-							   ptd->trips, nr_trips,
+							   ptd_trips, nr_trips,
 							   0, ptd, &tzd_ops,
 							   NULL, 0, 0);
 	if (IS_ERR(ptd->tzd)) {
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index 646ca8bd40a9..06f6d1468717 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -105,7 +105,6 @@ struct soc_sensor_entry {
 	u32 store_ptps;
 	u32 store_dts_enable;
 	struct thermal_zone_device *tzone;
-	struct thermal_trip trips[QRK_MAX_DTS_TRIPS];
 };
 
 static struct soc_sensor_entry *soc_dts;
@@ -320,6 +319,7 @@ static void free_soc_dts(struct soc_sensor_entry *aux_entry)
 
 static struct soc_sensor_entry *alloc_soc_dts(void)
 {
+	struct thermal_trip trips[QRK_MAX_DTS_TRIPS] = { 0 };
 	struct soc_sensor_entry *aux_entry;
 	int err;
 	u32 out;
@@ -362,14 +362,14 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 			goto err_ret;
 	}
 
-	aux_entry->trips[QRK_DTS_ID_TP_CRITICAL].temperature = get_trip_temp(QRK_DTS_ID_TP_CRITICAL);
-	aux_entry->trips[QRK_DTS_ID_TP_CRITICAL].type = THERMAL_TRIP_CRITICAL;
+	trips[QRK_DTS_ID_TP_CRITICAL].temperature = get_trip_temp(QRK_DTS_ID_TP_CRITICAL);
+	trips[QRK_DTS_ID_TP_CRITICAL].type = THERMAL_TRIP_CRITICAL;
 
-	aux_entry->trips[QRK_DTS_ID_TP_HOT].temperature = get_trip_temp(QRK_DTS_ID_TP_HOT);
-	aux_entry->trips[QRK_DTS_ID_TP_HOT].type = THERMAL_TRIP_HOT;
+	trips[QRK_DTS_ID_TP_HOT].temperature = get_trip_temp(QRK_DTS_ID_TP_HOT);
+	trips[QRK_DTS_ID_TP_HOT].type = THERMAL_TRIP_HOT;
 
 	aux_entry->tzone = thermal_zone_device_register_with_trips("quark_dts",
-								   aux_entry->trips,
+								   trips,
 								   QRK_MAX_DTS_TRIPS,
 								   wr_mask,
 								   aux_entry, &tzone_ops,
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index d00def3c4703..096cdd3c3b1f 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -129,22 +129,6 @@ err_restore_ptps:
 	return status;
 }
 
-static int configure_trip(struct intel_soc_dts_sensor_entry *dts,
-			  int thres_index, enum thermal_trip_type trip_type,
-			  int temp)
-{
-	int ret;
-
-	ret = update_trip_temp(dts->sensors, thres_index, temp);
-	if (ret)
-		return ret;
-
-	dts->trips[thres_index].temperature = temp;
-	dts->trips[thres_index].type = trip_type;
-
-	return 0;
-}
-
 static int sys_set_trip_temp(struct thermal_zone_device *tzd, int trip,
 			     int temp)
 {
@@ -218,6 +202,7 @@ static void remove_dts_thermal_zone(struct intel_soc_dts_sensor_entry *dts)
 }
 
 static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
+				struct thermal_trip *trips,
 				bool critical_trip)
 {
 	int writable_trip_cnt = SOC_MAX_DTS_TRIPS;
@@ -254,7 +239,7 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
 	}
 	dts->trip_mask = trip_mask;
 	snprintf(name, sizeof(name), "soc_dts%d", id);
-	dts->tzone = thermal_zone_device_register_with_trips(name, dts->trips,
+	dts->tzone = thermal_zone_device_register_with_trips(name, trips,
 							     SOC_MAX_DTS_TRIPS,
 							     trip_mask,
 							     dts, &tzone_ops,
@@ -315,14 +300,15 @@ EXPORT_SYMBOL_GPL(intel_soc_dts_iosf_interrupt_handler);
 
 static void dts_trips_reset(struct intel_soc_dts_sensors *sensors, int dts_index)
 {
-	configure_trip(&sensors->soc_dts[dts_index], 0, 0, 0);
-	configure_trip(&sensors->soc_dts[dts_index], 1, 0, 0);
+	update_trip_temp(sensors, 0, 0);
+	update_trip_temp(sensors, 1, 0);
 }
 
 struct intel_soc_dts_sensors *
 intel_soc_dts_iosf_init(enum intel_soc_dts_interrupt_type intr_type,
 			bool critical_trip, int crit_offset)
 {
+	struct thermal_trip trips[SOC_MAX_DTS_SENSORS][SOC_MAX_DTS_TRIPS] = { 0 };
 	struct intel_soc_dts_sensors *sensors;
 	int tj_max;
 	int ret;
@@ -350,11 +336,13 @@ intel_soc_dts_iosf_init(enum intel_soc_dts_interrupt_type intr_type,
 
 		sensors->soc_dts[i].sensors = sensors;
 
-		ret = configure_trip(&sensors->soc_dts[i], 0,
-				     THERMAL_TRIP_PASSIVE, 0);
+		ret = update_trip_temp(sensors, 0, 0);
 		if (ret)
 			goto err_reset_trips;
 
+		trips[i][0].type = THERMAL_TRIP_PASSIVE;
+		trips[i][0].temperature = 0;
+
 		if (critical_trip) {
 			trip_type = THERMAL_TRIP_CRITICAL;
 			temp = sensors->tj_max - crit_offset;
@@ -362,13 +350,17 @@ intel_soc_dts_iosf_init(enum intel_soc_dts_interrupt_type intr_type,
 			trip_type = THERMAL_TRIP_PASSIVE;
 			temp = 0;
 		}
-		ret = configure_trip(&sensors->soc_dts[i], 1, trip_type, temp);
+		ret = update_trip_temp(sensors, 1, temp);
 		if (ret)
 			goto err_reset_trips;
+
+		trips[i][1].type = trip_type;
+		trips[i][1].temperature = temp;
 	}
 
 	for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
-		ret = add_dts_thermal_zone(i, &sensors->soc_dts[i], critical_trip);
+		ret = add_dts_thermal_zone(i, &sensors->soc_dts[i], trips[i],
+					   critical_trip);
 		if (ret)
 			goto err_remove_zone;
 	}
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.h b/drivers/thermal/intel/intel_soc_dts_iosf.h
index 162841df0ebe..da59d719eb9d 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.h
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.h
@@ -29,7 +29,6 @@ struct intel_soc_dts_sensor_entry {
 	int id;
 	u32 store_status;
 	u32 trip_mask;
-	struct thermal_trip trips[SOC_MAX_DTS_TRIPS];
 	struct thermal_zone_device *tzone;
 	struct intel_soc_dts_sensors *sensors;
 };
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 61c3d450ee60..dafd28a39bcc 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -53,7 +53,6 @@ struct zone_device {
 	u32				msr_pkg_therm_high;
 	struct delayed_work		work;
 	struct thermal_zone_device	*tzone;
-	struct thermal_trip		*trips;
 	struct cpumask			cpumask;
 };
 
@@ -268,17 +267,13 @@ static int pkg_thermal_notify(u64 msr_val)
 	return 0;
 }
 
-static struct thermal_trip *pkg_temp_thermal_trips_init(int cpu, int tj_max, int num_trips)
+static int pkg_temp_thermal_trips_init(int cpu, int tj_max,
+				       struct thermal_trip *trips, int num_trips)
 {
-	struct thermal_trip *trips;
 	unsigned long thres_reg_value;
 	u32 mask, shift, eax, edx;
 	int ret, i;
 
-	trips = kzalloc(sizeof(*trips) * num_trips, GFP_KERNEL);
-	if (!trips)
-		return ERR_PTR(-ENOMEM);
-
 	for (i = 0; i < num_trips; i++) {
 
 		if (i) {
@@ -291,10 +286,8 @@ static struct thermal_trip *pkg_temp_thermal_trips_init(int cpu, int tj_max, int
 
 		ret = rdmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT,
 				   &eax, &edx);
-		if (ret < 0) {
-			kfree(trips);
-			return ERR_PTR(ret);
-		}
+		if (ret < 0)
+			return ret;
 
 		thres_reg_value = (eax & mask) >> shift;
 
@@ -307,11 +300,12 @@ static struct thermal_trip *pkg_temp_thermal_trips_init(int cpu, int tj_max, int
 			 __func__, cpu, i, trips[i].temperature);
 	}
 
-	return trips;
+	return 0;
 }
 
 static int pkg_temp_thermal_device_add(unsigned int cpu)
 {
+	struct thermal_trip trips[MAX_NUMBER_OF_TRIPS] = { 0 };
 	int id = topology_logical_die_id(cpu);
 	u32 eax, ebx, ecx, edx;
 	struct zone_device *zonedev;
@@ -336,21 +330,19 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 	if (!zonedev)
 		return -ENOMEM;
 
-	zonedev->trips = pkg_temp_thermal_trips_init(cpu, tj_max, thres_count);
-	if (IS_ERR(zonedev->trips)) {
-		err = PTR_ERR(zonedev->trips);
+	err = pkg_temp_thermal_trips_init(cpu, tj_max, trips, thres_count);
+	if (err)
 		goto out_kfree_zonedev;
-	}
 
 	INIT_DELAYED_WORK(&zonedev->work, pkg_temp_thermal_threshold_work_fn);
 	zonedev->cpu = cpu;
 	zonedev->tzone = thermal_zone_device_register_with_trips("x86_pkg_temp",
-			zonedev->trips, thres_count,
+			trips, thres_count,
 			(thres_count == MAX_NUMBER_OF_TRIPS) ? 0x03 : 0x01,
 			zonedev, &tzone_ops, &pkg_temp_tz_params, 0, 0);
 	if (IS_ERR(zonedev->tzone)) {
 		err = PTR_ERR(zonedev->tzone);
-		goto out_kfree_trips;
+		goto out_kfree_zonedev;
 	}
 	err = thermal_zone_device_enable(zonedev->tzone);
 	if (err)
@@ -369,8 +361,6 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 
 out_unregister_tz:
 	thermal_zone_device_unregister(zonedev->tzone);
-out_kfree_trips:
-	kfree(zonedev->trips);
 out_kfree_zonedev:
 	kfree(zonedev);
 	return err;
@@ -457,10 +447,9 @@ static int pkg_thermal_cpu_offline(unsigned int cpu)
 	raw_spin_unlock_irq(&pkg_temp_lock);
 
 	/* Final cleanup if this is the last cpu */
-	if (lastcpu) {
-		kfree(zonedev->trips);
+	if (lastcpu)
 		kfree(zonedev);
-	}
+
 	return 0;
 }
 
-- 
cgit v1.2.3


From 62dd17846d33e75e623965e281e246dff0e01309 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 5 Feb 2024 22:20:32 +0100
Subject: thermal: intel: Adjust ops handling during thermal zone registration

Because thermal zone operations are now stored directly in struct
thermal_zone_device, thermal zone creators can discard the operations
structure after the zone registration is complete, or it can be made
read-only.

Accordingly, make int340x_thermal_zone_add() use a local variable to
represent thermal zone operations, so it is freed automatically upon the
function exit, and make the other Intel thermal drivers use const zone
operations structures.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../intel/int340x_thermal/int340x_thermal_zone.c   | 26 +++++-----------------
 .../intel/int340x_thermal/int340x_thermal_zone.h   |  1 -
 .../int340x_thermal/processor_thermal_device_pci.c |  2 +-
 drivers/thermal/intel/intel_pch_thermal.c          |  2 +-
 drivers/thermal/intel/intel_quark_dts_thermal.c    |  2 +-
 drivers/thermal/intel/intel_soc_dts_iosf.c         |  2 +-
 drivers/thermal/intel/x86_pkg_temp_thermal.c       |  2 +-
 7 files changed, 11 insertions(+), 26 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 950e91ca5f42..1b0a9e9206c4 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -61,12 +61,6 @@ static void int340x_thermal_critical(struct thermal_zone_device *zone)
 	dev_dbg(&zone->device, "%s: critical temperature reached\n", zone->type);
 }
 
-static struct thermal_zone_device_ops int340x_thermal_zone_ops = {
-	.get_temp       = int340x_thermal_get_zone_temp,
-	.set_trip_temp	= int340x_thermal_set_trip_temp,
-	.critical	= int340x_thermal_critical,
-};
-
 static inline void *int_to_trip_priv(int i)
 {
 	return (void *)(long)i;
@@ -126,6 +120,11 @@ static struct thermal_zone_params int340x_thermal_params = {
 struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 						     int (*get_temp) (struct thermal_zone_device *, int *))
 {
+	const struct thermal_zone_device_ops zone_ops = {
+		.set_trip_temp = int340x_thermal_set_trip_temp,
+		.critical = int340x_thermal_critical,
+		.get_temp = get_temp ? get_temp : int340x_thermal_get_zone_temp,
+	};
 	struct int34x_thermal_zone *int34x_zone;
 	struct thermal_trip *zone_trips;
 	unsigned long long trip_cnt = 0;
@@ -140,16 +139,6 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 
 	int34x_zone->adev = adev;
 
-	int34x_zone->ops = kmemdup(&int340x_thermal_zone_ops,
-				   sizeof(int340x_thermal_zone_ops), GFP_KERNEL);
-	if (!int34x_zone->ops) {
-		ret = -ENOMEM;
-		goto err_ops_alloc;
-	}
-
-	if (get_temp)
-		int34x_zone->ops->get_temp = get_temp;
-
 	status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
 	if (ACPI_SUCCESS(status)) {
 		int34x_zone->aux_trip_nr = trip_cnt;
@@ -185,7 +174,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 							acpi_device_bid(adev),
 							zone_trips, trip_cnt,
 							trip_mask, int34x_zone,
-							int34x_zone->ops,
+							&zone_ops,
 							&int340x_thermal_params,
 							0, 0);
 	kfree(zone_trips);
@@ -205,8 +194,6 @@ err_enable:
 err_thermal_zone:
 	acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
 err_trips_alloc:
-	kfree(int34x_zone->ops);
-err_ops_alloc:
 	kfree(int34x_zone);
 	return ERR_PTR(ret);
 }
@@ -216,7 +203,6 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone *int34x_zone)
 {
 	thermal_zone_device_unregister(int34x_zone->zone);
 	acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
-	kfree(int34x_zone->ops);
 	kfree(int34x_zone);
 }
 EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index 91edc7f83d79..d504e271009a 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -22,7 +22,6 @@ struct int34x_thermal_zone {
 	struct acpi_device *adev;
 	int aux_trip_nr;
 	struct thermal_zone_device *zone;
-	struct thermal_zone_device_ops *ops;
 	void *priv_data;
 	struct acpi_lpat_conversion_table *lpat_table;
 };
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index bf47f319e3c6..8ff7e914ecf8 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -233,7 +233,7 @@ static int get_trip_temp(struct proc_thermal_pci *pci_info)
 	return temp;
 }
 
-static struct thermal_zone_device_ops tzone_ops = {
+static const struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
 	.set_trip_temp	= sys_set_trip_temp,
 };
diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index 76a552870fe0..8bfb221e57e7 100644
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -132,7 +132,7 @@ static void pch_critical(struct thermal_zone_device *tzd)
 		thermal_zone_device_type(tzd));
 }
 
-static struct thermal_zone_device_ops tzd_ops = {
+static const struct thermal_zone_device_ops tzd_ops = {
 	.get_temp = pch_thermal_get_temp,
 	.critical = pch_critical,
 };
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index 06f6d1468717..210b822bc988 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -292,7 +292,7 @@ static int sys_change_mode(struct thermal_zone_device *tzd,
 	return ret;
 }
 
-static struct thermal_zone_device_ops tzone_ops = {
+static const struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
 	.set_trip_temp = sys_set_trip_temp,
 	.change_mode = sys_change_mode,
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index 096cdd3c3b1f..c008eb42d82e 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -168,7 +168,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
 	return 0;
 }
 
-static struct thermal_zone_device_ops tzone_ops = {
+static const struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
 	.set_trip_temp = sys_set_trip_temp,
 };
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index dafd28a39bcc..20cb21cb97c1 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -166,7 +166,7 @@ sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
 }
 
 /* Thermal zone callback registry */
-static struct thermal_zone_device_ops tzone_ops = {
+static const struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
 	.set_trip_temp = sys_set_trip_temp,
 };
-- 
cgit v1.2.3


From a85739c8c6894c3b9ff860e79e91db44cb59bd63 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 12 Feb 2024 19:26:25 +0100
Subject: thermal: Get rid of CONFIG_THERMAL_WRITABLE_TRIPS

The only difference made by CONFIG_THERMAL_WRITABLE_TRIPS is whether or
not the writable trips mask passed during thermal zone registration
will take any effect, but whoever passes a non-zero writable trips mask
to thermal_zone_device_register_with_trips() can be forgiven thinking
that it will always work.

Moreover, some thermal drivers expect user space to set trip temperature
values, so they select CONFIG_THERMAL_WRITABLE_TRIPS, possibly overriding
a manual choice to unset it and going against the design purportedly
allowing system integrators to decide on the writability of trip points
for the given kernel build.  It is also set in one platform's defconfig.

Forthermore, CONFIG_THERMAL_WRITABLE_TRIPS only affects trip temperature,
because trip hysteresis is writable as long as the thermal zone provides
a callback to update it, regardless of the CONFIG_THERMAL_WRITABLE_TRIPS
value.

The above means that the symbol in question is used inconsistently and
its purpose is at least moot, so remove it and always take the writable
trip mask passed to thermal_zone_device_register_with_trips() into
account.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 arch/arm/configs/imx_v6_v7_defconfig |  1 -
 drivers/thermal/Kconfig              | 11 -----------
 drivers/thermal/intel/Kconfig        |  2 --
 drivers/thermal/thermal_sysfs.c      |  3 +--
 4 files changed, 1 insertion(+), 16 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 0a90583f9f01..ae20dc002dca 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/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
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 17a8ae5e991d..204ed89a3ec9 100644
--- a/drivers/thermal/Kconfig
+++ b/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
diff --git a/drivers/thermal/intel/Kconfig b/drivers/thermal/intel/Kconfig
index b43953b5539f..a31f2f32996a 100644
--- a/drivers/thermal/intel/Kconfig
+++ b/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
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 2eace6b33b8c..83914aa2248b 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -458,8 +458,7 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 						tz->trip_temp_attrs[indx].name;
 		tz->trip_temp_attrs[indx].attr.attr.mode = S_IRUGO;
 		tz->trip_temp_attrs[indx].attr.show = trip_point_temp_show;
-		if (IS_ENABLED(CONFIG_THERMAL_WRITABLE_TRIPS) &&
-		    mask & (1 << indx)) {
+		if (mask & (1 << indx)) {
 			tz->trip_temp_attrs[indx].attr.attr.mode |= S_IWUSR;
 			tz->trip_temp_attrs[indx].attr.store =
 							trip_point_temp_store;
-- 
cgit v1.2.3


From cca52f696952962f020c7e1393740d0ba07c3dc2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 22 Feb 2024 19:06:05 +0100
Subject: thermal: intel: Set THERMAL_TRIP_FLAG_RW_TEMP directly

Some Intel thermal drivers need/want the temperature of their trip
points to be set by user space via sysfs and so they pass nonzero
writable trip masks during thermal zone registration for this purpose.

It is now possible to achieve the same result by setting the
THERMAL_TRIP_FLAG_RW_TEMP trip flag directly, so modify the drivers
in question to do that instead of using a nonzero writable trips mask.

No intentional functional impact.

Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../intel/int340x_thermal/int340x_thermal_zone.c   |  8 ++-
 .../int340x_thermal/processor_thermal_device_pci.c |  3 +-
 drivers/thermal/intel/intel_quark_dts_thermal.c    | 20 +++-----
 drivers/thermal/intel/intel_soc_dts_iosf.c         | 57 ++++++++++------------
 drivers/thermal/intel/intel_soc_dts_iosf.h         |  1 -
 drivers/thermal/intel/x86_pkg_temp_thermal.c       |  4 +-
 6 files changed, 38 insertions(+), 55 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 1b0a9e9206c4..0e8148afb490 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -129,7 +129,6 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	struct thermal_trip *zone_trips;
 	unsigned long long trip_cnt = 0;
 	unsigned long long hyst;
-	int trip_mask = 0;
 	acpi_status status;
 	int i, ret;
 
@@ -140,10 +139,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	int34x_zone->adev = adev;
 
 	status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
-	if (ACPI_SUCCESS(status)) {
+	if (ACPI_SUCCESS(status))
 		int34x_zone->aux_trip_nr = trip_cnt;
-		trip_mask = BIT(trip_cnt) - 1;
-	}
 
 	zone_trips = kzalloc(sizeof(*zone_trips) * (trip_cnt + INT340X_THERMAL_MAX_TRIP_COUNT),
 			     GFP_KERNEL);
@@ -155,6 +152,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	for (i = 0; i < trip_cnt; i++) {
 		zone_trips[i].type = THERMAL_TRIP_PASSIVE;
 		zone_trips[i].temperature = THERMAL_TEMP_INVALID;
+		zone_trips[i].flags |= THERMAL_TRIP_FLAG_RW_TEMP;
 	}
 
 	trip_cnt = int340x_thermal_read_trips(adev, zone_trips, trip_cnt);
@@ -173,7 +171,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	int34x_zone->zone = thermal_zone_device_register_with_trips(
 							acpi_device_bid(adev),
 							zone_trips, trip_cnt,
-							trip_mask, int34x_zone,
+							0, int34x_zone,
 							&zone_ops,
 							&int340x_thermal_params,
 							0, 0);
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index 8ff7e914ecf8..7572f3a73c54 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -249,6 +249,7 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device_
 	struct proc_thermal_pci *pci_info;
 	struct thermal_trip psv_trip = {
 		.type = THERMAL_TRIP_PASSIVE,
+		.flags = THERMAL_TRIP_FLAG_RW_TEMP,
 	};
 	int irq_flag = 0, irq, ret;
 	bool msi_irq = false;
@@ -289,7 +290,7 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device_
 	psv_trip.temperature = get_trip_temp(pci_info);
 
 	pci_info->tzone = thermal_zone_device_register_with_trips("TCPU_PCI", &psv_trip,
-							1, 1, pci_info,
+							1, 0, pci_info,
 							&tzone_ops,
 							&tzone_params, 0, 0);
 	if (IS_ERR(pci_info->tzone)) {
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index 210b822bc988..55a031fc3a9a 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -93,10 +93,6 @@
 
 /* Quark DTS has 2 trip points: hot & catastrophic */
 #define QRK_MAX_DTS_TRIPS	2
-/* If DTS not locked, all trip points are configurable */
-#define QRK_DTS_WR_MASK_SET	0x3
-/* If DTS locked, all trip points are not configurable */
-#define QRK_DTS_WR_MASK_CLR	0
 
 #define DEFAULT_POLL_DELAY	2000
 
@@ -323,7 +319,6 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	struct soc_sensor_entry *aux_entry;
 	int err;
 	u32 out;
-	int wr_mask;
 
 	aux_entry = kzalloc(sizeof(*aux_entry), GFP_KERNEL);
 	if (!aux_entry) {
@@ -337,13 +332,7 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	if (err)
 		goto err_ret;
 
-	if (out & QRK_DTS_LOCK_BIT) {
-		aux_entry->locked = true;
-		wr_mask = QRK_DTS_WR_MASK_CLR;
-	} else {
-		aux_entry->locked = false;
-		wr_mask = QRK_DTS_WR_MASK_SET;
-	}
+	aux_entry->locked = !!(out & QRK_DTS_LOCK_BIT);
 
 	/* Store DTS default state if DTS registers are not locked */
 	if (!aux_entry->locked) {
@@ -360,6 +349,9 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 				    &aux_entry->store_ptps);
 		if (err)
 			goto err_ret;
+
+		trips[QRK_DTS_ID_TP_CRITICAL].flags |= THERMAL_TRIP_FLAG_RW_TEMP;
+		trips[QRK_DTS_ID_TP_HOT].flags |= THERMAL_TRIP_FLAG_RW_TEMP;
 	}
 
 	trips[QRK_DTS_ID_TP_CRITICAL].temperature = get_trip_temp(QRK_DTS_ID_TP_CRITICAL);
@@ -371,8 +363,8 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	aux_entry->tzone = thermal_zone_device_register_with_trips("quark_dts",
 								   trips,
 								   QRK_MAX_DTS_TRIPS,
-								   wr_mask,
-								   aux_entry, &tzone_ops,
+								   0, aux_entry,
+								   &tzone_ops,
 								   NULL, 0, polling_delay);
 	if (IS_ERR(aux_entry->tzone)) {
 		err = PTR_ERR(aux_entry->tzone);
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index c008eb42d82e..5a84c9166274 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -202,16 +202,10 @@ static void remove_dts_thermal_zone(struct intel_soc_dts_sensor_entry *dts)
 }
 
 static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
-				struct thermal_trip *trips,
-				bool critical_trip)
+				struct thermal_trip *trips)
 {
-	int writable_trip_cnt = SOC_MAX_DTS_TRIPS;
 	char name[10];
-	unsigned long trip;
-	int trip_mask;
-	unsigned long ptps;
 	u32 store_ptps;
-	unsigned long i;
 	int ret;
 
 	/* Store status to restor on exit */
@@ -222,27 +216,21 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
 
 	dts->id = id;
 
-	if (critical_trip)
-		writable_trip_cnt--;
-
-	trip_mask = GENMASK(writable_trip_cnt - 1, 0);
-
 	/* Check if the writable trip we provide is not used by BIOS */
 	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			    SOC_DTS_OFFSET_PTPS, &store_ptps);
-	if (ret)
-		trip_mask = 0;
-	else {
-		ptps = store_ptps;
-		for_each_set_clump8(i, trip, &ptps, writable_trip_cnt * 8)
-			trip_mask &= ~BIT(i / 8);
+	if (!ret) {
+		int i;
+
+		for (i = 0; i <= 1; i++) {
+			if (store_ptps & (0xFFU << i * 8))
+				trips[i].flags &= ~THERMAL_TRIP_FLAG_RW_TEMP;
+		}
 	}
-	dts->trip_mask = trip_mask;
 	snprintf(name, sizeof(name), "soc_dts%d", id);
 	dts->tzone = thermal_zone_device_register_with_trips(name, trips,
 							     SOC_MAX_DTS_TRIPS,
-							     trip_mask,
-							     dts, &tzone_ops,
+							     0, dts, &tzone_ops,
 							     NULL, 0, 0);
 	if (IS_ERR(dts->tzone)) {
 		ret = PTR_ERR(dts->tzone);
@@ -304,6 +292,14 @@ static void dts_trips_reset(struct intel_soc_dts_sensors *sensors, int dts_index
 	update_trip_temp(sensors, 1, 0);
 }
 
+static void set_trip(struct thermal_trip *trip, enum thermal_trip_type type,
+		     u8 flags, int temp)
+{
+	trip->type = type;
+	trip->flags = flags;
+	trip->temperature = temp;
+}
+
 struct intel_soc_dts_sensors *
 intel_soc_dts_iosf_init(enum intel_soc_dts_interrupt_type intr_type,
 			bool critical_trip, int crit_offset)
@@ -331,36 +327,33 @@ intel_soc_dts_iosf_init(enum intel_soc_dts_interrupt_type intr_type,
 	sensors->tj_max = tj_max * 1000;
 
 	for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
-		enum thermal_trip_type trip_type;
 		int temp;
 
 		sensors->soc_dts[i].sensors = sensors;
 
+		set_trip(&trips[i][0], THERMAL_TRIP_PASSIVE,
+			 THERMAL_TRIP_FLAG_RW_TEMP, 0);
+
 		ret = update_trip_temp(sensors, 0, 0);
 		if (ret)
 			goto err_reset_trips;
 
-		trips[i][0].type = THERMAL_TRIP_PASSIVE;
-		trips[i][0].temperature = 0;
-
 		if (critical_trip) {
-			trip_type = THERMAL_TRIP_CRITICAL;
 			temp = sensors->tj_max - crit_offset;
+			set_trip(&trips[i][1], THERMAL_TRIP_CRITICAL, 0, temp);
 		} else {
-			trip_type = THERMAL_TRIP_PASSIVE;
+			set_trip(&trips[i][1], THERMAL_TRIP_PASSIVE,
+				 THERMAL_TRIP_FLAG_RW_TEMP, 0);
 			temp = 0;
 		}
+
 		ret = update_trip_temp(sensors, 1, temp);
 		if (ret)
 			goto err_reset_trips;
-
-		trips[i][1].type = trip_type;
-		trips[i][1].temperature = temp;
 	}
 
 	for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
-		ret = add_dts_thermal_zone(i, &sensors->soc_dts[i], trips[i],
-					   critical_trip);
+		ret = add_dts_thermal_zone(i, &sensors->soc_dts[i], trips[i]);
 		if (ret)
 			goto err_remove_zone;
 	}
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.h b/drivers/thermal/intel/intel_soc_dts_iosf.h
index da59d719eb9d..44eee844ab3c 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.h
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.h
@@ -28,7 +28,6 @@ struct intel_soc_dts_sensors;
 struct intel_soc_dts_sensor_entry {
 	int id;
 	u32 store_status;
-	u32 trip_mask;
 	struct thermal_zone_device *tzone;
 	struct intel_soc_dts_sensors *sensors;
 };
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 20cb21cb97c1..5a48b73a0951 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -295,6 +295,7 @@ static int pkg_temp_thermal_trips_init(int cpu, int tj_max,
 			tj_max - thres_reg_value * 1000 : THERMAL_TEMP_INVALID;
 
 		trips[i].type = THERMAL_TRIP_PASSIVE;
+		trips[i].flags |= THERMAL_TRIP_FLAG_RW_TEMP;
 
 		pr_debug("%s: cpu=%d, trip=%d, temp=%d\n",
 			 __func__, cpu, i, trips[i].temperature);
@@ -337,8 +338,7 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 	INIT_DELAYED_WORK(&zonedev->work, pkg_temp_thermal_threshold_work_fn);
 	zonedev->cpu = cpu;
 	zonedev->tzone = thermal_zone_device_register_with_trips("x86_pkg_temp",
-			trips, thres_count,
-			(thres_count == MAX_NUMBER_OF_TRIPS) ? 0x03 : 0x01,
+			trips, thres_count, 0,
 			zonedev, &tzone_ops, &pkg_temp_tz_params, 0, 0);
 	if (IS_ERR(zonedev->tzone)) {
 		err = PTR_ERR(zonedev->tzone);
-- 
cgit v1.2.3


From 4a62d588a84e13c68017bd16bc9c2531a2cde08f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 22 Feb 2024 19:09:16 +0100
Subject: thermal: core: Eliminate writable trip points masks

All of the thermal_zone_device_register_with_trips() callers pass zero
writable trip points masks to it, so drop the mask argument from that
function and update all of its callers accordingly.

This also removes the artificial trip points per zone limit of 32,
related to using writable trip points masks.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/acpi/thermal.c                             |  2 +-
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c |  2 +-
 drivers/net/ethernet/mellanox/mlxsw/core_thermal.c |  3 ---
 drivers/net/wireless/intel/iwlwifi/mvm/tt.c        |  1 -
 drivers/platform/x86/acerhdf.c                     |  2 +-
 drivers/thermal/da9062-thermal.c                   |  2 +-
 drivers/thermal/imx_thermal.c                      |  2 +-
 .../intel/int340x_thermal/int340x_thermal_zone.c   |  2 +-
 .../int340x_thermal/processor_thermal_device_pci.c |  2 +-
 drivers/thermal/intel/intel_pch_thermal.c          |  2 +-
 drivers/thermal/intel/intel_quark_dts_thermal.c    |  2 +-
 drivers/thermal/intel/intel_soc_dts_iosf.c         |  2 +-
 drivers/thermal/intel/x86_pkg_temp_thermal.c       |  2 +-
 drivers/thermal/rcar_thermal.c                     |  2 +-
 drivers/thermal/st/st_thermal.c                    |  2 +-
 drivers/thermal/thermal_core.c                     | 28 +++-------------------
 drivers/thermal/thermal_of.c                       |  2 +-
 include/linux/thermal.h                            |  6 ++---
 18 files changed, 19 insertions(+), 47 deletions(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 8042e96016e6..302dce0b2b50 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -665,7 +665,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz,
 	tz->thermal_zone = thermal_zone_device_register_with_trips("acpitz",
 								   trip_table,
 								   trip_count,
-								   0, tz,
+								   tz,
 								   &acpi_thermal_zone_ops,
 								   NULL,
 								   passive_delay,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
index dea9d2907666..b08356060fb4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
+++ b/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)) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index 29ec0c122139..5c511e1a8efa 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -423,7 +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,
-							0,
 							module_tz,
 							&mlxsw_thermal_module_ops,
 							&mlxsw_thermal_params,
@@ -551,7 +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,
-						0,
 						gearbox_tz,
 						&mlxsw_thermal_gearbox_ops,
 						&mlxsw_thermal_params, 0,
@@ -776,7 +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,
-						      0,
 						      thermal,
 						      &mlxsw_thermal_ops,
 						      &mlxsw_thermal_params, 0,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 2353177f2dfa..61a4638d1be2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -694,7 +694,6 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 	mvm->tz_device.tzone = thermal_zone_device_register_with_trips(name,
 							mvm->tz_device.trips,
 							IWL_MAX_DTS_TRIPS,
-							0,
 							mvm, &tzone_ops,
 							NULL, 0, 0);
 	if (IS_ERR(mvm->tz_device.tzone)) {
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 74bcb3d13104..018c48429616 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/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))
diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index 160d64913057..a27aff88cd96 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/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)) {
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 0dbede6bec54..83eaae5ca3b8 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -701,7 +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),
-							   0, data,
+							   data,
 							   &imx_tz_ops, NULL,
 							   IMX_PASSIVE_DELAY,
 							   IMX_POLLING_DELAY);
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 0e8148afb490..e8182f0929d3 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -171,7 +171,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	int34x_zone->zone = thermal_zone_device_register_with_trips(
 							acpi_device_bid(adev),
 							zone_trips, trip_cnt,
-							0, int34x_zone,
+							int34x_zone,
 							&zone_ops,
 							&int340x_thermal_params,
 							0, 0);
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index 7572f3a73c54..7dcf6006816e 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -290,7 +290,7 @@ static int proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device_
 	psv_trip.temperature = get_trip_temp(pci_info);
 
 	pci_info->tzone = thermal_zone_device_register_with_trips("TCPU_PCI", &psv_trip,
-							1, 0, pci_info,
+							1, pci_info,
 							&tzone_ops,
 							&tzone_params, 0, 0);
 	if (IS_ERR(pci_info->tzone)) {
diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index 8bfb221e57e7..f5be2c389351 100644
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -237,7 +237,7 @@ read_trips:
 
 	ptd->tzd = thermal_zone_device_register_with_trips(board_names[board_id],
 							   ptd_trips, nr_trips,
-							   0, ptd, &tzd_ops,
+							   ptd, &tzd_ops,
 							   NULL, 0, 0);
 	if (IS_ERR(ptd->tzd)) {
 		dev_err(&pdev->dev, "Failed to register thermal zone %s\n",
diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index 55a031fc3a9a..ec6ad26027bc 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -363,7 +363,7 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	aux_entry->tzone = thermal_zone_device_register_with_trips("quark_dts",
 								   trips,
 								   QRK_MAX_DTS_TRIPS,
-								   0, aux_entry,
+								   aux_entry,
 								   &tzone_ops,
 								   NULL, 0, polling_delay);
 	if (IS_ERR(aux_entry->tzone)) {
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index 5a84c9166274..2ab943b66f7a 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -230,7 +230,7 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
 	snprintf(name, sizeof(name), "soc_dts%d", id);
 	dts->tzone = thermal_zone_device_register_with_trips(name, trips,
 							     SOC_MAX_DTS_TRIPS,
-							     0, dts, &tzone_ops,
+							     dts, &tzone_ops,
 							     NULL, 0, 0);
 	if (IS_ERR(dts->tzone)) {
 		ret = PTR_ERR(dts->tzone);
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 5a48b73a0951..22a1e3268a98 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -338,7 +338,7 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 	INIT_DELAYED_WORK(&zonedev->work, pkg_temp_thermal_threshold_work_fn);
 	zonedev->cpu = cpu;
 	zonedev->tzone = thermal_zone_device_register_with_trips("x86_pkg_temp",
-			trips, thres_count, 0,
+			trips, thres_count,
 			zonedev, &tzone_ops, &pkg_temp_tz_params, 0, 0);
 	if (IS_ERR(zonedev->tzone)) {
 		err = PTR_ERR(zonedev->tzone);
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index feb848d595fa..925183753fcb 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -489,7 +489,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 						&rcar_thermal_zone_ops);
 		} else {
 			priv->zone = thermal_zone_device_register_with_trips(
-				"rcar_thermal", trips, ARRAY_SIZE(trips), 0, priv,
+				"rcar_thermal", trips, ARRAY_SIZE(trips), priv,
 						&rcar_thermal_zone_ops, NULL, 0,
 						idle);
 
diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index 0d6249b36609..2a105409864e 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -203,7 +203,7 @@ int st_thermal_register(struct platform_device *pdev,
 	trip.type = THERMAL_TRIP_CRITICAL;
 
 	sensor->thermal_dev =
-		thermal_zone_device_register_with_trips(dev_name(dev), &trip, 1, 0, sensor,
+		thermal_zone_device_register_with_trips(dev_name(dev), &trip, 1, sensor,
 							&st_tz_ops, NULL, 0, polling_delay);
 	if (IS_ERR(sensor->thermal_dev)) {
 		dev_err(dev, "failed to register thermal zone device\n");
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 2ab495220c6e..f7a7d43809e7 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1248,7 +1248,6 @@ EXPORT_SYMBOL_GPL(thermal_zone_get_crit_temp);
  * @type:	the thermal zone device type
  * @trips:	a pointer to an array of thermal trips
  * @num_trips:	the number of trip points the thermal zone support
- * @mask:	a bit string indicating the writeablility of trip points
  * @devdata:	private device data
  * @ops:	standard thermal zone device callbacks
  * @tzp:	thermal zone platform parameters
@@ -1271,14 +1270,12 @@ EXPORT_SYMBOL_GPL(thermal_zone_get_crit_temp);
 struct thermal_zone_device *
 thermal_zone_device_register_with_trips(const char *type,
 					const struct thermal_trip *trips,
-					int num_trips, int mask,
-					void *devdata,
+					int num_trips, void *devdata,
 					const struct thermal_zone_device_ops *ops,
 					const struct thermal_zone_params *tzp,
 					int passive_delay, int polling_delay)
 {
 	struct thermal_zone_device *tz;
-	struct thermal_trip *trip;
 	int id;
 	int result;
 	struct thermal_governor *governor;
@@ -1294,20 +1291,7 @@ thermal_zone_device_register_with_trips(const char *type,
 		return ERR_PTR(-EINVAL);
 	}
 
-	/*
-	 * Max trip count can't exceed 31 as the "mask >> num_trips" condition.
-	 * For example, shifting by 32 will result in compiler warning:
-	 * warning: right shift count >= width of type [-Wshift-count- overflow]
-	 *
-	 * Also "mask >> num_trips" will always be true with 32 bit shift.
-	 * E.g. mask = 0x80000000 for trip id 31 to be RW. Then
-	 * mask >> 32 = 0x80000000
-	 * This will result in failure for the below condition.
-	 *
-	 * Check will be true when the bit 31 of the mask is set.
-	 * 32 bit shift will cause overflow of 4 byte integer.
-	 */
-	if (num_trips > (BITS_PER_TYPE(int) - 1) || num_trips < 0 || mask >> num_trips) {
+	if (num_trips < 0) {
 		pr_err("Incorrect number of thermal trips\n");
 		return ERR_PTR(-EINVAL);
 	}
@@ -1357,12 +1341,6 @@ thermal_zone_device_register_with_trips(const char *type,
 	tz->devdata = devdata;
 	tz->num_trips = num_trips;
 	memcpy(tz->trips, trips, num_trips * sizeof(*trips));
-	for_each_trip(tz, trip) {
-		if (mask & 1)
-			trip->flags |= THERMAL_TRIP_FLAG_RW_TEMP;
-
-		mask >>= 1;
-	}
 
 	thermal_set_delay_jiffies(&tz->passive_delay_jiffies, passive_delay);
 	thermal_set_delay_jiffies(&tz->polling_delay_jiffies, polling_delay);
@@ -1447,7 +1425,7 @@ struct thermal_zone_device *thermal_tripless_zone_device_register(
 					const struct thermal_zone_device_ops *ops,
 					const struct thermal_zone_params *tzp)
 {
-	return thermal_zone_device_register_with_trips(type, NULL, 0, 0, devdata,
+	return thermal_zone_device_register_with_trips(type, NULL, 0, devdata,
 						       ops, tzp, 0, 0);
 }
 EXPORT_SYMBOL_GPL(thermal_tripless_zone_device_register);
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index c3bd5fb15c7e..f1cbf9aa62cf 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -507,7 +507,7 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
 			of_ops.critical = thermal_zone_device_critical_reboot;
 
 	tz = thermal_zone_device_register_with_trips(np->name, trips, ntrips,
-						     0, data, &of_ops, &tzp,
+						     data, &of_ops, &tzp,
 						     pdelay, delay);
 	if (IS_ERR(tz)) {
 		ret = PTR_ERR(tz);
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index eb4145a64c7e..c33f50177f51 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -323,8 +323,7 @@ int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);
 struct thermal_zone_device *thermal_zone_device_register_with_trips(
 					const char *type,
 					const struct thermal_trip *trips,
-					int num_trips, int mask,
-					void *devdata,
+					int num_trips, void *devdata,
 					const struct thermal_zone_device_ops *ops,
 					const struct thermal_zone_params *tzp,
 					int passive_delay, int polling_delay);
@@ -383,8 +382,7 @@ void thermal_zone_device_critical(struct thermal_zone_device *tz);
 static inline struct thermal_zone_device *thermal_zone_device_register_with_trips(
 					const char *type,
 					const struct thermal_trip *trips,
-					int num_trips, int mask,
-					void *devdata,
+					int num_trips, void *devdata,
 					const struct thermal_zone_device_ops *ops,
 					const struct thermal_zone_params *tzp,
 					int passive_delay, int polling_delay)
-- 
cgit v1.2.3


From f1f0c445226c8f03ad329cc2d8072556198fb24a Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 27 Feb 2024 11:41:12 -0800
Subject: thermal: int340x: processor_thermal: Add Lunar Lake-M PCI ID

Add Lunar Lake-M PCI ID for processor thermal device.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/thermal/intel/int340x_thermal/processor_thermal_device.h     | 1 +
 drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c | 1 +
 2 files changed, 2 insertions(+)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
index 95c6013a33fb..674f3c85dfbc 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.h
@@ -25,6 +25,7 @@
 #define PCI_DEVICE_ID_INTEL_HSB_THERMAL	0x0A03
 #define PCI_DEVICE_ID_INTEL_ICL_THERMAL	0x8a03
 #define PCI_DEVICE_ID_INTEL_JSL_THERMAL	0x4E03
+#define PCI_DEVICE_ID_INTEL_LNLM_THERMAL	0x641D
 #define PCI_DEVICE_ID_INTEL_MTLP_THERMAL	0x7D03
 #define PCI_DEVICE_ID_INTEL_RPL_THERMAL	0xA71D
 #define PCI_DEVICE_ID_INTEL_SKL_THERMAL	0x1903
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index d7495571dd5d..4e1dfd283651 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -407,6 +407,7 @@ static SIMPLE_DEV_PM_OPS(proc_thermal_pci_pm, proc_thermal_pci_suspend,
 static const struct pci_device_id proc_thermal_pci_ids[] = {
 	{ PCI_DEVICE_DATA(INTEL, ADL_THERMAL, PROC_THERMAL_FEATURE_RAPL |
 	  PROC_THERMAL_FEATURE_FIVR | PROC_THERMAL_FEATURE_DVFS | PROC_THERMAL_FEATURE_WT_REQ) },
+	{ PCI_DEVICE_DATA(INTEL, LNLM_THERMAL, PROC_THERMAL_FEATURE_RAPL) },
 	{ PCI_DEVICE_DATA(INTEL, MTLP_THERMAL, PROC_THERMAL_FEATURE_RAPL |
 	  PROC_THERMAL_FEATURE_FIVR | PROC_THERMAL_FEATURE_DVFS | PROC_THERMAL_FEATURE_DLVR |
 	  PROC_THERMAL_FEATURE_WT_HINT | PROC_THERMAL_FEATURE_POWER_FLOOR) },
-- 
cgit v1.2.3


From 53b94f421d53d2a54a8ed42fbcba8b5dd39695fe Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 5 Mar 2024 12:32:09 +0100
Subject: thermal: intel: int340x_thermal: Use thermal zone accessor functions

Make int340x_thermal use the dedicated accessor functions for the
thermal zone device object address and the thermal zone type string.

This is requisite for future thermal core improvements.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
 drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/thermal/intel')

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index e8182f0929d3..400fde7cb3b1 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -58,7 +58,8 @@ static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
 
 static void int340x_thermal_critical(struct thermal_zone_device *zone)
 {
-	dev_dbg(&zone->device, "%s: critical temperature reached\n", zone->type);
+	dev_dbg(thermal_zone_device(zone), "%s: critical temperature reached\n",
+		thermal_zone_device_type(zone));
 }
 
 static inline void *int_to_trip_priv(int i)
-- 
cgit v1.2.3