Merge tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Use the newly introduced 'hot' and 'critical' ops for the acpi
   thermal driver (Daniel Lezcano)

 - Remove the notify ops as it is no longer used (Daniel Lezcano)

 - Remove the 'forced passive' option and the unused bind/unbind
   functions (Daniel Lezcano)

 - Remove the THERMAL_TRIPS_NONE and the code cleanup around this macro
   (Daniel Lezcano)

 - Rework the delays to make them pre-computed instead of computing them
   again and again at each polling interval (Daniel Lezcano)

 - Remove the pointless 'thermal_zone_device_reset' function (Daniel
   Lezcano)

 - Use the critical and hot ops to prevent an unexpected system shutdown
   on int340x (Kai-Heng Feng)

 - Make the cooling device state private to the thermal subsystem
   (Daniel Lezcano)

 - Prevent to use not-power-aware actor devices with the power allocator
   governor (Lukasz Luba)

 - Remove 'zx' and 'tango' support along with the corresponding
   platforms (Arnd Bergman)

 - Fix several issues on the Omap thermal driver (Tony Lindgren)

 - Add support for adc-tm5 PMIC thermal monitor for Qcom platforms
   (Dmitry Baryshkov)

 - Fix an initialization loop in the adc-tm5 (Colin Ian King)

 - Fix a return error check in the cpufreq cooling device (Viresh Kumar)

* tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (26 commits)
  thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error
  thermal: qcom: Fix comparison with uninitialized variable channels_available
  thermal: qcom: add support for adc-tm5 PMIC thermal monitor
  dt-bindings: thermal: qcom: add adc-thermal monitor bindings
  thermal: ti-soc-thermal: Use non-inverted define for omap4
  thermal: ti-soc-thermal: Simplify polling with iopoll
  thermal: ti-soc-thermal: Fix stuck sensor with continuous mode for 4430
  thermal: ti-soc-thermal: Skip pointless register access for dra7
  thermal/drivers/zx: Remove zx driver
  thermal/drivers/tango: Remove tango driver
  thermal: power allocator: fail binding for non-power actor devices
  thermal/core: Make cooling device state change private
  thermal: intel: pch: Fix unexpected shutdown at critical temperature
  thermal: int340x: Fix unexpected shutdown at critical temperature
  thermal/core: Remove pointless thermal_zone_device_reset() function
  thermal/core: Remove ms based delay fields
  thermal/core: Use precomputed jiffies for the polling
  thermal/core: Precompute the delays from msecs to jiffies
  thermal/core: Remove unused macro THERMAL_TRIPS_NONE
  thermal/core: Remove THERMAL_TRIPS_NONE test
  ...

Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/qcom-spmi-adc-tm5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC ADC Thermal Monitoring
+maintainers:
+  - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+properties:
+  compatible:
+    const: qcom,spmi-adc-tm5
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  "#thermal-sensor-cells":
+    const: 1
+    description:
+      Number of cells required to uniquely identify the thermal sensors. Since
+      we have multiple sensors this is set to 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  qcom,avg-samples:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Number of samples to be used for measurement.
+    enum:
+      - 1
+      - 2
+      - 4
+      - 8
+      - 16
+    default: 1
+
+  qcom,decimation:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: This parameter is used to decrease ADC sampling rate.
+            Quicker measurements can be made by reducing decimation ratio.
+    enum:
+      - 250
+      - 420
+      - 840
+    default: 840
+
+patternProperties:
+  "^([-a-z0-9]*)@[0-7]$":
+    type: object
+    description:
+      Represent one thermal sensor.
+
+    properties:
+      reg:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: Specify the sensor channel. There are 8 channels in PMIC5's ADC TM
+        minimum: 0
+        maximum: 7
+
+      io-channels:
+        description:
+          From common IIO binding. Used to pipe PMIC ADC channel to thermal monitor
+
+      qcom,ratiometric:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Channel calibration type.
+          If this property is specified VADC will use the VDD reference
+          (1.875V) and GND for channel calibration. If property is not found,
+          channel will be calibrated with 0V and 1.25V reference channels,
+          also known as absolute calibration.
+
+      qcom,hw-settle-time-us:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: Time between AMUX getting configured and the ADC starting conversion.
+        enum: [15, 100, 200, 300, 400, 500, 600, 700, 1000, 2000, 4000, 8000, 16000, 32000, 64000, 128000]
+
+      qcom,pre-scaling:
+        $ref: /schemas/types.yaml#/definitions/uint32-array
+        description: Used for scaling the channel input signal before the
+          signal is fed to VADC. The configuration for this node is to know the
+          pre-determined ratio and use it for post scaling. It is a pair of
+          integers, denoting the numerator and denominator of the fraction by
+          which input signal is multiplied. For example, <1 3> indicates the
+          signal is scaled down to 1/3 of its value before ADC measurement.  If
+          property is not found default value depending on chip will be used.
+        items:
+          - const: 1
+          - enum: [ 1, 3, 4, 6, 20, 8, 10 ]
+
+    required:
+      - reg
+      - io-channels
+
+    additionalProperties:
+      false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - "#address-cells"
+  - "#size-cells"
+  - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/iio/qcom,spmi-vadc.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spmi_bus {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        pm8150b_adc: adc@3100 {
+            reg = <0x3100>;
+            compatible = "qcom,spmi-adc5";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            #io-channel-cells = <1>;
+
+            /* Other propreties are omitted */
+            conn-therm@4f {
+                reg = <ADC5_AMUX_THM3_100K_PU>;
+                qcom,ratiometric;
+                qcom,hw-settle-time = <200>;
+            };
+        };
+
+        pm8150b_adc_tm: adc-tm@3500 {
+            compatible = "qcom,spmi-adc-tm5";
+            reg = <0x3500>;
+            interrupts = <0x2 0x35 0x0 IRQ_TYPE_EDGE_RISING>;
+            #thermal-sensor-cells = <1>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            conn-therm@0 {
+                reg = <0>;
+                io-channels = <&pm8150b_adc ADC5_AMUX_THM3_100K_PU>;
+                qcom,ratiometric;
+                qcom,hw-settle-time-us = <200>;
+            };
+        };
+    };
+...

Documentation/devicetree/bindings/thermal/tango-thermal.txt

-* Tango Thermal
-
-The SMP8758 SoC includes 3 instances of this temperature sensor
-(in the CPU, video decoder, and PCIe controller).
-
-Required properties:
-- #thermal-sensor-cells: Should be 0 (see Documentation/devicetree/bindings/thermal/thermal-sensor.yaml)
-- compatible: "sigma,smp8758-thermal"
-- reg: Address range of the thermal registers
-
-Example:
-
-	cpu_temp: thermal@920100 {
-		#thermal-sensor-cells = <0>;
-		compatible = "sigma,smp8758-thermal";
-		reg = <0x920100 12>;
-	};

Documentation/devicetree/bindings/thermal/zx2967-thermal.txt

-* ZTE zx2967 family Thermal
-
-Required Properties:
-- compatible: should be one of the following.
-    * zte,zx296718-thermal
-- reg: physical base address of the controller and length of memory mapped
-    region.
-- clocks : Pairs of phandle and specifier referencing the controller's clocks.
-- clock-names: "topcrm" for the topcrm clock.
-	       "apb" for the apb clock.
-- #thermal-sensor-cells: must be 0.
-
-Please note: slope coefficient defined in thermal-zones section need to be
-multiplied by 1000.
-
-Example for tempsensor:
-
-	tempsensor: tempsensor@148a000 {
-		compatible = "zte,zx296718-thermal";
-		reg = <0x0148a000 0x20>;
-		clocks = <&topcrm TEMPSENSOR_GATE>, <&audiocrm AUDIO_TS_PCLK>;
-		clock-names = "topcrm", "apb";
-		#thermal-sensor-cells = <0>;
-	};
-
-Example for cooling device:
-
-	cooling_dev: cooling_dev {
-		cluster0_cooling_dev: cluster0-cooling-dev {
-			#cooling-cells = <2>;
-			cpumask = <0xf>;
-			capacitance = <1500>;
-		};
-
-	cluster1_cooling_dev: cluster1-cooling-dev {
-			#cooling-cells = <2>;
-			cpumask = <0x30>;
-			capacitance = <2000>;
-		};
-	};
-
-Example for thermal zones:
-
-	thermal-zones {
-		zx296718_thermal: zx296718_thermal {
-			polling-delay-passive = <500>;
-			polling-delay = <1000>;
-			sustainable-power = <6500>;
-
-			thermal-sensors = <&tempsensor 0>;
-			/*
-			 * slope need to be multiplied by 1000.
-			 */
-			coefficients = <1951 (-922)>;
-
-			trips {
-				trip0: switch_on_temperature {
-					temperature = <90000>;
-					hysteresis = <2000>;
-					type = "passive";
-				};
-
-				trip1: desired_temperature {
-					temperature = <100000>;
-					hysteresis = <2000>;
-					type = "passive";
-				};
-
-				crit: critical_temperature {
-					temperature = <110000>;
-					hysteresis = <2000>;
-					type = "critical";
-				};
-			};
-
-			cooling-maps {
-				map0 {
-					trip = <&trip0>;
-					cooling-device = <&gpu 2 5>;
-				};
-
-				map1 {
-					trip = <&trip0>;
-					cooling-device = <&cluster0_cooling_dev 1 2>;
-				};
-
-				map2 {
-					trip = <&trip1>;
-					cooling-device = <&cluster0_cooling_dev 1 2>;
-				};
-
-				map3 {
-					trip = <&crit>;
-					cooling-device = <&cluster0_cooling_dev 1 2>;
-				};
-
-				map4 {
-					trip = <&trip0>;
-					cooling-device = <&cluster1_cooling_dev 1 2>;
-					contribution = <9000>;
-				};
-
-				map5 {
-					trip = <&trip1>;
-					cooling-device = <&cluster1_cooling_dev 1 2>;
-					contribution = <4096>;
-				};
-
-				map6 {
-					trip = <&crit>;
-					cooling-device = <&cluster1_cooling_dev 1 2>;
-					contribution = <4096>;
-				};
-			};
-		};
-	};

Documentation/driver-api/thermal/sysfs-api.rst

@@ -520,19 +520,6 @@ available_policies
 
 	RW, Optional
 
-passive
-	Attribute is only present for zones in which the passive cooling
-	policy is not supported by native thermal driver. Default is zero
-	and can be set to a temperature (in millidegrees) to enable a
-	passive trip point for the zone. Activation is done by polling with
-	an interval of 1 second.
-
-	Unit: millidegrees Celsius
-
-	Valid values: 0 (disabled) or greater than 1000
-
-	RW, Optional
-
 emul_temp
 	Interface to set the emulated temperature method in thermal zone
 	(sensor). After setting this temperature, the thermal zone may pass

drivers/acpi/thermal.c

@@ -670,27 +670,24 @@ static int thermal_get_trend(struct thermal_zone_device *thermal,
 	return 0;
 }
 
-
-static int thermal_notify(struct thermal_zone_device *thermal, int trip,
-			   enum thermal_trip_type trip_type)
+static void acpi_thermal_zone_device_hot(struct thermal_zone_device *thermal)
 {
-	u8 type = 0;
 	struct acpi_thermal *tz = thermal->devdata;
 
-	if (trip_type == THERMAL_TRIP_CRITICAL)
-		type = ACPI_THERMAL_NOTIFY_CRITICAL;
-	else if (trip_type == THERMAL_TRIP_HOT)
-		type = ACPI_THERMAL_NOTIFY_HOT;
-	else
-		return 0;
-
 	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
-					dev_name(&tz->device->dev), type, 1);
+					dev_name(&tz->device->dev),
+					ACPI_THERMAL_NOTIFY_HOT, 1);
+}
 
-	if (trip_type == THERMAL_TRIP_CRITICAL && nocrt)
-		return 1;
+static void acpi_thermal_zone_device_critical(struct thermal_zone_device *thermal)
+{
+	struct acpi_thermal *tz = thermal->devdata;
 
-	return 0;
+	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
+					dev_name(&tz->device->dev),
+					ACPI_THERMAL_NOTIFY_CRITICAL, 1);
+
+	thermal_zone_device_critical(thermal);
 }
 
 static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
@@ -760,25 +757,6 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 		}
 	}
 
-	for (i = 0; i < tz->devices.count; i++) {
-		handle = tz->devices.handles[i];
-		status = acpi_bus_get_device(handle, &dev);
-		if (ACPI_SUCCESS(status) && (dev == device)) {
-			if (bind)
-				result = thermal_zone_bind_cooling_device
-						(thermal, THERMAL_TRIPS_NONE,
-						 cdev, THERMAL_NO_LIMIT,
-						 THERMAL_NO_LIMIT,
-						 THERMAL_WEIGHT_DEFAULT);
-			else
-				result = thermal_zone_unbind_cooling_device
-						(thermal, THERMAL_TRIPS_NONE,
-						 cdev);
-			if (result)
-				goto failed;
-		}
-	}
-
 failed:
 	return result;
 }
@@ -805,7 +783,8 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
 	.get_trip_temp = thermal_get_trip_temp,
 	.get_crit_temp = thermal_get_crit_temp,
 	.get_trend = thermal_get_trend,
-	.notify = thermal_notify,
+	.hot = acpi_thermal_zone_device_hot,
+	.critical = acpi_thermal_zone_device_critical,
 };
 
 static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)

drivers/hwmon/pwm-fan.c

@@ -458,7 +458,6 @@ static int pwm_fan_probe(struct platform_device *pdev)
 			return ret;
 		}
 		ctx->cdev = cdev;
-		thermal_cdev_update(cdev);
 	}
 
 	return 0;

drivers/iio/adc/qcom-vadc-common.c

@@ -368,6 +368,28 @@ static int qcom_vadc_map_voltage_temp(const struct vadc_map_pt *pts,
 	return 0;
 }
 
+static s32 qcom_vadc_map_temp_voltage(const struct vadc_map_pt *pts,
+				      u32 tablesize, int input)
+{
+	u32 i = 0;
+
+	/*
+	 * Table must be sorted, find the interval of 'y' which contains value
+	 * 'input' and map it to proper 'x' value
+	 */
+	while (i < tablesize && pts[i].y < input)
+		i++;
+
+	if (i == 0)
+		return pts[0].x;
+	if (i == tablesize)
+		return pts[tablesize - 1].x;
+
+	/* interpolate linearly */
+	return fixp_linear_interpolate(pts[i - 1].y, pts[i - 1].x,
+			pts[i].y, pts[i].x, input);
+}
+
 static void qcom_vadc_scale_calib(const struct vadc_linear_graph *calib_graph,
 				  u16 adc_code,
 				  bool absolute,
@@ -463,6 +485,21 @@ static int qcom_vadc_scale_chg_temp(const struct vadc_linear_graph *calib_graph,
 	return 0;
 }
 
+/* convert voltage to ADC code, using 1.875V reference */
+static u16 qcom_vadc_scale_voltage_code(s32 voltage,
+					const struct vadc_prescale_ratio *prescale,
+					const u32 full_scale_code_volt,
+					unsigned int factor)
+{
+	s64 volt = voltage;
+	s64 adc_vdd_ref_mv = 1875; /* reference voltage */
+
+	volt *= prescale->num * factor * full_scale_code_volt;
+	volt = div64_s64(volt, (s64)prescale->den * adc_vdd_ref_mv * 1000);
+
+	return volt;
+}
+
 static int qcom_vadc_scale_code_voltage_factor(u16 adc_code,
 				const struct vadc_prescale_ratio *prescale,
 				const struct adc5_data *data,
@@ -627,6 +664,19 @@ int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
 }
 EXPORT_SYMBOL(qcom_vadc_scale);
 
+u16 qcom_adc_tm5_temp_volt_scale(unsigned int prescale_ratio,
+				 u32 full_scale_code_volt, int temp)
+{
+	const struct vadc_prescale_ratio *prescale = &adc5_prescale_ratios[prescale_ratio];
+	s32 voltage;
+
+	voltage = qcom_vadc_map_temp_voltage(adcmap_100k_104ef_104fb_1875_vref,
+					     ARRAY_SIZE(adcmap_100k_104ef_104fb_1875_vref),
+					     temp);
+	return qcom_vadc_scale_voltage_code(voltage, prescale, full_scale_code_volt, 1000);
+}
+EXPORT_SYMBOL(qcom_adc_tm5_temp_volt_scale);
+
 int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
 		    unsigned int prescale_ratio,
 		    const struct adc5_data *data,

drivers/platform/x86/acerhdf.c

@@ -336,7 +336,8 @@ static void acerhdf_check_param(struct thermal_zone_device *thermal)
 			pr_notice("interval changed to: %d\n", interval);
 
 		if (thermal)
-			thermal->polling_delay = interval*1000;
+			thermal->polling_delay_jiffies =
+				round_jiffies(msecs_to_jiffies(interval * 1000));
 
 		prev_interval = interval;
 	}

drivers/thermal/Kconfig

@@ -450,15 +450,6 @@ depends on (ARCH_STI || ARCH_STM32) && OF
 source "drivers/thermal/st/Kconfig"
 endmenu
 
-config TANGO_THERMAL
-	tristate "Tango thermal management"
-	depends on ARCH_TANGO || COMPILE_TEST
-	help
-	  Enable the Tango thermal driver, which supports the primitive
-	  temperature sensor embedded in Tango chips since the SMP8758.
-	  This sensor only generates a 1-bit signal to indicate whether
-	  the die temperature exceeds a programmable threshold.
-
 source "drivers/thermal/tegra/Kconfig"
 
 config GENERIC_ADC_THERMAL
@@ -476,14 +467,6 @@ depends on (ARCH_QCOM && OF) || COMPILE_TEST
 source "drivers/thermal/qcom/Kconfig"
 endmenu
 
-config ZX2967_THERMAL
-	tristate "Thermal sensors on zx2967 SoC"
-	depends on ARCH_ZX || COMPILE_TEST
-	help
-	  Enable the zx2967 thermal sensors driver, which supports
-	  the primitive temperature sensor embedded in zx2967 SoCs.
-	  This sensor generates the real time die temperature.
-
 config UNIPHIER_THERMAL
 	tristate "Socionext UniPhier thermal driver"
 	depends on ARCH_UNIPHIER || COMPILE_TEST

drivers/thermal/Makefile

@@ -42,7 +42,6 @@ obj-y				+= samsung/
 obj-$(CONFIG_DOVE_THERMAL)  	+= dove_thermal.o
 obj-$(CONFIG_DB8500_THERMAL)	+= db8500_thermal.o
 obj-$(CONFIG_ARMADA_THERMAL)	+= armada_thermal.o
-obj-$(CONFIG_TANGO_THERMAL)	+= tango_thermal.o
 obj-$(CONFIG_IMX_THERMAL)	+= imx_thermal.o
 obj-$(CONFIG_IMX_SC_THERMAL)	+= imx_sc_thermal.o
 obj-$(CONFIG_IMX8MM_THERMAL)	+= imx8mm_thermal.o
@@ -57,7 +56,6 @@ obj-y				+= tegra/
 obj-$(CONFIG_HISI_THERMAL)     += hisi_thermal.o
 obj-$(CONFIG_MTK_THERMAL)	+= mtk_thermal.o
 obj-$(CONFIG_GENERIC_ADC_THERMAL)	+= thermal-generic-adc.o
-obj-$(CONFIG_ZX2967_THERMAL)	+= zx2967_thermal.o
 obj-$(CONFIG_UNIPHIER_THERMAL)	+= uniphier_thermal.o
 obj-$(CONFIG_AMLOGIC_THERMAL)     += amlogic_thermal.o
 obj-$(CONFIG_SPRD_THERMAL)	+= sprd_thermal.o

drivers/thermal/cpufreq_cooling.c

@@ -485,7 +485,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 	frequency = get_state_freq(cpufreq_cdev, state);
 
 	ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency);
-	if (ret > 0) {
+	if (ret >= 0) {
 		cpufreq_cdev->cpufreq_state = state;
 		cpus = cpufreq_cdev->policy->cpus;
 		max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus));

drivers/thermal/da9062-thermal.c

@@ -95,7 +95,7 @@ static void da9062_thermal_poll_on(struct work_struct *work)
 		thermal_zone_device_update(thermal->zone,
 					   THERMAL_EVENT_UNSPECIFIED);
 
-		delay = msecs_to_jiffies(thermal->zone->passive_delay);
+		delay = thermal->zone->passive_delay_jiffies;
 		queue_delayed_work(system_freezable_wq, &thermal->work, delay);
 		return;
 	}
@@ -245,7 +245,7 @@ static int da9062_thermal_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev,
 		"TJUNC temperature polling period set at %d ms\n",
-		thermal->zone->passive_delay);
+		jiffies_to_msecs(thermal->zone->passive_delay_jiffies));
 
 	ret = platform_get_irq_byname(pdev, "THERMAL");
 	if (ret < 0) {

drivers/thermal/gov_power_allocator.c

@@ -258,7 +258,7 @@ static u32 pid_controller(struct thermal_zone_device *tz,
 	 * power being applied, slowing down the controller)
 	 */
 	d = mul_frac(tz->tzp->k_d, err - params->prev_err);
-	d = div_frac(d, tz->passive_delay);
+	d = div_frac(d, jiffies_to_msecs(tz->passive_delay_jiffies));
 	params->prev_err = err;
 
 	power_range = p + i + d;
@@ -589,6 +589,34 @@ static void allow_maximum_power(struct thermal_zone_device *tz)
 	mutex_unlock(&tz->lock);
 }
 
+/**
+ * check_power_actors() - Check all cooling devices and warn when they are
+ *			not power actors
+ * @tz:		thermal zone to operate on
+ *
+ * Check all cooling devices in the @tz and warn every time they are missing
+ * power actor API. The warning should help to investigate the issue, which
+ * could be e.g. lack of Energy Model for a given device.
+ *
+ * Return: 0 on success, -EINVAL if any cooling device does not implement
+ * the power actor API.
+ */
+static int check_power_actors(struct thermal_zone_device *tz)
+{
+	struct thermal_instance *instance;
+	int ret = 0;
+
+	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
+		if (!cdev_is_power_actor(instance->cdev)) {
+			dev_warn(&tz->device, "power_allocator: %s is not a power actor\n",
+				 instance->cdev->type);
+			ret = -EINVAL;
+		}
+	}
+
+	return ret;
+}
+
 /**
  * power_allocator_bind() - bind the power_allocator governor to a thermal zone
  * @tz:	thermal zone to bind it to
@@ -596,7 +624,8 @@ static void allow_maximum_power(struct thermal_zone_device *tz)
  * Initialize the PID controller parameters and bind it to the thermal
  * zone.
  *
- * Return: 0 on success, or -ENOMEM if we ran out of memory.
+ * Return: 0 on success, or -ENOMEM if we ran out of memory, or -EINVAL
+ * when there are unsupported cooling devices in the @tz.
  */
 static int power_allocator_bind(struct thermal_zone_device *tz)
 {
@@ -604,6 +633,10 @@ static int power_allocator_bind(struct thermal_zone_device *tz)
 	struct power_allocator_params *params;
 	int control_temp;
 
+	ret = check_power_actors(tz);
+	if (ret)
+		return ret;
+
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (!params)
 		return -ENOMEM;

drivers/thermal/gov_step_wise.c

@@ -109,7 +109,7 @@ static void update_passive_instance(struct thermal_zone_device *tz,
 	 * If value is +1, activate a passive instance.
 	 * If value is -1, deactivate a passive instance.
 	 */
-	if (type == THERMAL_TRIP_PASSIVE || type == THERMAL_TRIPS_NONE)
+	if (type == THERMAL_TRIP_PASSIVE)
 		tz->passive += value;
 }
 
@@ -122,13 +122,8 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 	bool throttle = false;
 	int old_target;
 
-	if (trip == THERMAL_TRIPS_NONE) {
-		trip_temp = tz->forced_passive;
-		trip_type = THERMAL_TRIPS_NONE;
-	} else {
-		tz->ops->get_trip_temp(tz, trip, &trip_temp);
-		tz->ops->get_trip_type(tz, trip, &trip_type);
-	}
+	tz->ops->get_trip_temp(tz, trip, &trip_temp);
+	tz->ops->get_trip_type(tz, trip, &trip_type);
 
 	trend = get_tz_trend(tz, trip);
 
@@ -189,9 +184,6 @@ static int step_wise_throttle(struct thermal_zone_device *tz, int trip)
 
 	thermal_zone_trip_update(tz, trip);
 
-	if (tz->forced_passive)
-		thermal_zone_trip_update(tz, THERMAL_TRIPS_NONE);
-
 	mutex_lock(&tz->lock);
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node)

drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c

@@ -146,12 +146,18 @@ static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone,
 	return 0;
 }
 
+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,
 	.get_trip_temp	= int340x_thermal_get_trip_temp,
 	.get_trip_type	= int340x_thermal_get_trip_type,
 	.set_trip_temp	= int340x_thermal_set_trip_temp,
 	.get_trip_hyst =  int340x_thermal_get_trip_hyst,
+	.critical	= int340x_thermal_critical,
 };
 
 static int int340x_thermal_get_trip_config(acpi_handle handle, char *name,

drivers/thermal/intel/intel_pch_thermal.c

@@ -326,10 +326,16 @@ static int pch_get_trip_temp(struct thermal_zone_device *tzd, int trip, int *tem
 	return 0;
 }
 
+static void pch_critical(struct thermal_zone_device *tzd)
+{
+	dev_dbg(&tzd->device, "%s: critical temperature reached\n", tzd->type);
+}
+
 static struct thermal_zone_device_ops tzd_ops = {
 	.get_temp = pch_thermal_get_temp,
 	.get_trip_type = pch_get_trip_type,
 	.get_trip_temp = pch_get_trip_temp,
+	.critical = pch_critical,
 };
 
 enum board_ids {

drivers/thermal/khadas_mcu_fan.c

@@ -100,7 +100,6 @@ static int khadas_mcu_fan_probe(struct platform_device *pdev)
 		return ret;
 	}
 	ctx->cdev = cdev;
-	thermal_cdev_update(cdev);
 
 	return 0;
 }

drivers/thermal/qcom/Kconfig

@@ -10,6 +10,17 @@ config QCOM_TSENS
 	  Also able to set threshold temperature for both hot and cold and update
 	  when a threshold is reached.
 
+config QCOM_SPMI_ADC_TM5
+	tristate "Qualcomm SPMI PMIC Thermal Monitor ADC5"
+	depends on OF && SPMI && IIO
+	select REGMAP_SPMI
+	select QCOM_VADC_COMMON
+	help
+	  This enables the thermal driver for the ADC thermal monitoring
+	  device. It shows up as a thermal zone with multiple trip points.
+	  Thermal client sets threshold temperature for both warm and cool and
+	  gets updated when a threshold is reached.
+
 config QCOM_SPMI_TEMP_ALARM
 	tristate "Qualcomm SPMI PMIC Temperature Alarm"
 	depends on OF && SPMI && IIO

drivers/thermal/qcom/Makefile

@@ -3,4 +3,5 @@ obj-$(CONFIG_QCOM_TSENS)	+= qcom_tsens.o
 
 qcom_tsens-y			+= tsens.o tsens-v2.o tsens-v1.o tsens-v0_1.o \
 				   tsens-8960.o
+obj-$(CONFIG_QCOM_SPMI_ADC_TM5)	+= qcom-spmi-adc-tm5.o
 obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM)	+= qcom-spmi-temp-alarm.o

drivers/thermal/tango_thermal.c

-// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/thermal.h>
-#include <linux/platform_device.h>
-
-/*
- * According to a data sheet draft, "this temperature sensor uses a bandgap
- * type of circuit to compare a voltage which has a negative temperature
- * coefficient with a voltage that is proportional to absolute temperature.
- * A resistor bank allows 41 different temperature thresholds to be selected
- * and the logic output will then indicate whether the actual die temperature
- * lies above or below the selected threshold."
- */
-
-#define TEMPSI_CMD	0
-#define TEMPSI_RES	4
-#define TEMPSI_CFG	8
-
-#define CMD_OFF		0
-#define CMD_ON		1
-#define CMD_READ	2
-
-#define IDX_MIN		15
-#define IDX_MAX		40
-
-struct tango_thermal_priv {
-	void __iomem *base;
-	int thresh_idx;
-};
-
-static bool temp_above_thresh(void __iomem *base, int thresh_idx)
-{
-	writel(CMD_READ | thresh_idx << 8, base + TEMPSI_CMD);
-	usleep_range(10, 20);
-	writel(CMD_READ | thresh_idx << 8, base + TEMPSI_CMD);
-
-	return readl(base + TEMPSI_RES);
-}
-
-static int tango_get_temp(void *arg, int *res)
-{
-	struct tango_thermal_priv *priv = arg;
-	int idx = priv->thresh_idx;
-
-	if (temp_above_thresh(priv->base, idx)) {
-		/* Search upward by incrementing thresh_idx */
-		while (idx < IDX_MAX && temp_above_thresh(priv->base, ++idx))
-			cpu_relax();
-		idx = idx - 1; /* always return lower bound */
-	} else {
-		/* Search downward by decrementing thresh_idx */
-		while (idx > IDX_MIN && !temp_above_thresh(priv->base, --idx))
-			cpu_relax();
-	}
-
-	*res = (idx * 9 / 2 - 38) * 1000; /* millidegrees Celsius */
-	priv->thresh_idx = idx;
-
-	return 0;
-}
-
-static const struct thermal_zone_of_device_ops ops = {
-	.get_temp	= tango_get_temp,
-};
-
-static void tango_thermal_init(struct tango_thermal_priv *priv)
-{
-	writel(0, priv->base + TEMPSI_CFG);
-	writel(CMD_ON, priv->base + TEMPSI_CMD);
-}
-
-static int tango_thermal_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct tango_thermal_priv *priv;
-	struct thermal_zone_device *tzdev;
-
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(priv->base))
-		return PTR_ERR(priv->base);
-
-	platform_set_drvdata(pdev, priv);
-	priv->thresh_idx = IDX_MIN;
-	tango_thermal_init(priv);
-
-	tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, priv, &ops);
-	return PTR_ERR_OR_ZERO(tzdev);
-}
-
-static int __maybe_unused tango_thermal_resume(struct device *dev)
-{
-	tango_thermal_init(dev_get_drvdata(dev));
-	return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(tango_thermal_pm, NULL, tango_thermal_resume);
-
-static const struct of_device_id tango_sensor_ids[] = {
-	{
-		.compatible = "sigma,smp8758-thermal",
-	},
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, tango_sensor_ids);
-
-static struct platform_driver tango_thermal_driver = {
-	.probe	= tango_thermal_probe,
-	.driver	= {
-		.name		= "tango-thermal",
-		.of_match_table	= tango_sensor_ids,
-		.pm		= &tango_thermal_pm,
-	},
-};
-
-module_platform_driver(tango_thermal_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Sigma Designs");
-MODULE_DESCRIPTION("Tango temperature sensor");

drivers/thermal/thermal_core.c

@@ -289,16 +289,11 @@ static int __init thermal_register_governors(void)
  * - Critical trip point will cause a system shutdown.
  */
 static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
-					    int delay)
+					    unsigned long delay)
 {
-	if (delay > 1000)
+	if (delay)
 		mod_delayed_work(system_freezable_power_efficient_wq,
-				 &tz->poll_queue,
-				 round_jiffies(msecs_to_jiffies(delay)));
-	else if (delay)
-		mod_delayed_work(system_freezable_power_efficient_wq,
-				 &tz->poll_queue,
-				 msecs_to_jiffies(delay));
+				 &tz->poll_queue, delay);
 	else
 		cancel_delayed_work(&tz->poll_queue);
 }
@@ -317,9 +312,9 @@ static void monitor_thermal_zone(struct thermal_zone_device *tz)
 	mutex_lock(&tz->lock);
 
 	if (!stop && tz->passive)
-		thermal_zone_device_set_polling(tz, tz->passive_delay);
-	else if (!stop && tz->polling_delay)
-		thermal_zone_device_set_polling(tz, tz->polling_delay);
+		thermal_zone_device_set_polling(tz, tz->passive_delay_jiffies);
+	else if (!stop && tz->polling_delay_jiffies)
+		thermal_zone_device_set_polling(tz, tz->polling_delay_jiffies);
 	else
 		thermal_zone_device_set_polling(tz, 0);
 
@@ -412,9 +407,6 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 
 	trace_thermal_zone_trip(tz, trip, trip_type);
 
-	if (tz->ops->notify)
-		tz->ops->notify(tz, trip, trip_type);
-
 	if (trip_type == THERMAL_TRIP_HOT && tz->ops->hot)
 		tz->ops->hot(tz);
 	else if (trip_type == THERMAL_TRIP_CRITICAL)
@@ -486,12 +478,6 @@ static void thermal_zone_device_init(struct thermal_zone_device *tz)
 		pos->initialized = false;
 }
 
-static void thermal_zone_device_reset(struct thermal_zone_device *tz)
-{
-	tz->passive = 0;
-	thermal_zone_device_init(tz);
-}
-
 static int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
 					enum thermal_device_mode mode)
 {
@@ -601,26 +587,6 @@ static void thermal_zone_device_check(struct work_struct *work)
 	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
 }
 
-void thermal_zone_device_rebind_exception(struct thermal_zone_device *tz,
-					  const char *cdev_type, size_t size)
-{
-	struct thermal_cooling_device *cdev = NULL;
-
-	mutex_lock(&thermal_list_lock);
-	list_for_each_entry(cdev, &thermal_cdev_list, node) {
-		/* skip non matching cdevs */
-		if (strncmp(cdev_type, cdev->type, size))
-			continue;
-
-		/* re binding the exception matching the type pattern */
-		thermal_zone_bind_cooling_device(tz, THERMAL_TRIPS_NONE, cdev,
-						 THERMAL_NO_LIMIT,
-						 THERMAL_NO_LIMIT,
-						 THERMAL_WEIGHT_DEFAULT);
-	}
-	mutex_unlock(&thermal_list_lock);
-}
-
 int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
 			      void *data)
 {
@@ -688,23 +654,6 @@ struct thermal_zone_device *thermal_zone_get_by_id(int id)
 	return match;
 }
 
-void thermal_zone_device_unbind_exception(struct thermal_zone_device *tz,
-					  const char *cdev_type, size_t size)
-{
-	struct thermal_cooling_device *cdev = NULL;
-
-	mutex_lock(&thermal_list_lock);
-	list_for_each_entry(cdev, &thermal_cdev_list, node) {
-		/* skip non matching cdevs */
-		if (strncmp(cdev_type, cdev->type, size))
-			continue;
-		/* unbinding the exception matching the type pattern */
-		thermal_zone_unbind_cooling_device(tz, THERMAL_TRIPS_NONE,
-						   cdev);
-	}
-	mutex_unlock(&thermal_list_lock);
-}
-
 /*
  * Device management section: cooling devices, zones devices, and binding
  *
@@ -750,7 +699,7 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
 	unsigned long max_state;
 	int result, ret;
 
-	if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE))
+	if (trip >= tz->trips || trip < 0)
 		return -EINVAL;
 
 	list_for_each_entry(pos1, &thermal_tz_list, node) {
@@ -1352,8 +1301,9 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 	tz->device.class = &thermal_class;
 	tz->devdata = devdata;
 	tz->trips = trips;
-	tz->passive_delay = passive_delay;
-	tz->polling_delay = polling_delay;
+
+	thermal_set_delay_jiffies(&tz->passive_delay_jiffies, passive_delay);
+	thermal_set_delay_jiffies(&tz->polling_delay_jiffies, polling_delay);
 
 	/* sys I/F */
 	/* Add nodes that are always present via .groups */
@@ -1407,7 +1357,7 @@ thermal_zone_device_register(const char *type, int trips, int mask,
 
 	INIT_DELAYED_WORK(&tz->poll_queue, thermal_zone_device_check);
 
-	thermal_zone_device_reset(tz);
+	thermal_zone_device_init(tz);
 	/* Update the new thermal zone and mark it as already updated. */
 	if (atomic_cmpxchg(&tz->need_update, 1, 0))
 		thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);

drivers/thermal/thermal_core.h

@@ -65,6 +65,8 @@ static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev)
 		cdev->ops->power2state;
 }
 
+void thermal_cdev_update(struct thermal_cooling_device *);
+
 /**
  * struct thermal_trip - representation of a point in temperature domain
  * @np: pointer to struct device_node that this trip point was created from
@@ -118,15 +120,12 @@ struct thermal_instance {
 
 int thermal_register_governor(struct thermal_governor *);
 void thermal_unregister_governor(struct thermal_governor *);
-void thermal_zone_device_rebind_exception(struct thermal_zone_device *,
-					  const char *, size_t);
-void thermal_zone_device_unbind_exception(struct thermal_zone_device *,
-					  const char *, size_t);
 int thermal_zone_device_set_policy(struct thermal_zone_device *, char *);
 int thermal_build_list_of_policies(char *buf);
 
 /* Helpers */
 void thermal_zone_set_trips(struct thermal_zone_device *tz);
+void thermal_set_delay_jiffies(unsigned long *delay_jiffies, int delay_ms);
 
 /* sysfs I/F */
 int thermal_zone_create_device_groups(struct thermal_zone_device *, int);

drivers/thermal/thermal_helpers.c

@@ -175,6 +175,13 @@ void thermal_zone_set_trips(struct thermal_zone_device *tz)
 	mutex_unlock(&tz->lock);
 }
 
+void thermal_set_delay_jiffies(unsigned long *delay_jiffies, int delay_ms)
+{
+	*delay_jiffies = msecs_to_jiffies(delay_ms);
+	if (delay_ms > 1000)
+		*delay_jiffies = round_jiffies(*delay_jiffies);
+}
+
 static void thermal_cdev_set_cur_state(struct thermal_cooling_device *cdev,
 				       int target)
 {

drivers/thermal/thermal_sysfs.c

@@ -216,49 +216,6 @@ trip_point_hyst_show(struct device *dev, struct device_attribute *attr,
 	return ret ? ret : sprintf(buf, "%d\n", temperature);
 }
 
-static ssize_t
-passive_store(struct device *dev, struct device_attribute *attr,
-	      const char *buf, size_t count)
-{
-	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int state;
-
-	if (sscanf(buf, "%d\n", &state) != 1)
-		return -EINVAL;
-
-	/* sanity check: values below 1000 millicelcius don't make sense
-	 * and can cause the system to go into a thermal heart attack
-	 */
-	if (state && state < 1000)
-		return -EINVAL;
-
-	if (state && !tz->forced_passive) {
-		if (!tz->passive_delay)
-			tz->passive_delay = 1000;
-		thermal_zone_device_rebind_exception(tz, "Processor",
-						     sizeof("Processor"));
-	} else if (!state && tz->forced_passive) {
-		tz->passive_delay = 0;
-		thermal_zone_device_unbind_exception(tz, "Processor",
-						     sizeof("Processor"));
-	}
-
-	tz->forced_passive = state;
-
-	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
-	return count;
-}
-
-static ssize_t
-passive_show(struct device *dev, struct device_attribute *attr,
-	     char *buf)
-{
-	struct thermal_zone_device *tz = to_thermal_zone(dev);
-
-	return sprintf(buf, "%d\n", tz->forced_passive);
-}
-
 static ssize_t
 policy_store(struct device *dev, struct device_attribute *attr,
 	     const char *buf, size_t count)
@@ -403,7 +360,6 @@ static DEVICE_ATTR_RW(sustainable_power);
 
 /* These thermal zone device attributes are created based on conditions */
 static DEVICE_ATTR_RW(mode);
-static DEVICE_ATTR_RW(passive);
 
 /* These attributes are unconditionally added to a thermal zone */
 static struct attribute *thermal_zone_dev_attrs[] = {
@@ -438,45 +394,9 @@ static const struct attribute_group thermal_zone_mode_attribute_group = {
 	.attrs = thermal_zone_mode_attrs,
 };
 
-/* We expose passive only if passive trips are present */
-static struct attribute *thermal_zone_passive_attrs[] = {
-	&dev_attr_passive.attr,
-	NULL,
-};
-
-static umode_t thermal_zone_passive_is_visible(struct kobject *kobj,
-					       struct attribute *attr,
-					       int attrno)
-{
-	struct device *dev = kobj_to_dev(kobj);
-	struct thermal_zone_device *tz;
-	enum thermal_trip_type trip_type;
-	int count, passive = 0;
-
-	tz = container_of(dev, struct thermal_zone_device, device);
-
-	for (count = 0; count < tz->trips && !passive; count++) {
-		tz->ops->get_trip_type(tz, count, &trip_type);
-
-		if (trip_type == THERMAL_TRIP_PASSIVE)
-			passive = 1;
-	}
-
-	if (!passive)
-		return attr->mode;
-
-	return 0;
-}
-
-static const struct attribute_group thermal_zone_passive_attribute_group = {
-	.attrs = thermal_zone_passive_attrs,
-	.is_visible = thermal_zone_passive_is_visible,
-};
-
 static const struct attribute_group *thermal_zone_attribute_groups[] = {
 	&thermal_zone_attribute_group,
 	&thermal_zone_mode_attribute_group,
-	&thermal_zone_passive_attribute_group,
 	/* This is not NULL terminated as we create the group dynamically */
 };
 
@@ -955,10 +875,7 @@ trip_point_show(struct device *dev, struct device_attribute *attr, char *buf)
 	instance =
 	    container_of(attr, struct thermal_instance, attr);
 
-	if (instance->trip == THERMAL_TRIPS_NONE)
-		return sprintf(buf, "-1\n");
-	else
-		return sprintf(buf, "%d\n", instance->trip);
+	return sprintf(buf, "%d\n", instance->trip);
 }
 
 ssize_t

drivers/thermal/ti-soc-thermal/omap4-thermal-data.c

@@ -24,7 +24,7 @@ omap4430_mpu_temp_sensor_registers = {
 	.bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
 
 	.bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
-	.mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
+	.mode_ctrl_mask = OMAP4430_CONTINUOUS_MODE_MASK,
 
 	.bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
 };
@@ -58,7 +58,8 @@ omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
 const struct ti_bandgap_data omap4430_data = {
 	.features = TI_BANDGAP_FEATURE_MODE_CONFIG |
 			TI_BANDGAP_FEATURE_CLK_CTRL |
-			TI_BANDGAP_FEATURE_POWER_SWITCH,
+			TI_BANDGAP_FEATURE_POWER_SWITCH |
+			TI_BANDGAP_FEATURE_CONT_MODE_ONLY,
 	.fclock_name = "bandgap_fclk",
 	.div_ck_name = "bandgap_fclk",
 	.conv_table = omap4430_adc_to_temp,
@@ -96,7 +97,7 @@ omap4460_mpu_temp_sensor_registers = {
 	.mask_cold_mask = OMAP4460_MASK_COLD_MASK,
 
 	.bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
-	.mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
+	.mode_ctrl_mask = OMAP4460_CONTINUOUS_MODE_MASK,
 
 	.bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
 	.counter_mask = OMAP4460_COUNTER_MASK,

drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h

@@ -40,7 +40,7 @@
 /* OMAP4430.TEMP_SENSOR bits */
 #define OMAP4430_BGAP_TEMPSOFF_MASK			BIT(12)
 #define OMAP4430_BGAP_TSHUT_MASK			BIT(11)
-#define OMAP4430_SINGLE_MODE_MASK			BIT(10)
+#define OMAP4430_CONTINUOUS_MODE_MASK			BIT(10)
 #define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK		BIT(9)
 #define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK		BIT(8)
 #define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK		(0xff << 0)
@@ -113,7 +113,7 @@
 #define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK		(0x3ff << 0)
 
 /* OMAP4460.BANDGAP_CTRL bits */
-#define OMAP4460_SINGLE_MODE_MASK			BIT(31)
+#define OMAP4460_CONTINUOUS_MODE_MASK			BIT(31)
 #define OMAP4460_MASK_HOT_MASK				BIT(1)
 #define OMAP4460_MASK_COLD_MASK				BIT(0)
 

drivers/thermal/ti-soc-thermal/ti-bandgap.c

@@ -26,6 +26,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_irq.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/cpu_pm.h>
 #include <linux/device.h>
 #include <linux/pm_runtime.h>
@@ -602,35 +603,40 @@ void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id)
 static int
 ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id)
 {
-	u32 counter = 1000;
-	struct temp_sensor_registers *tsr;
-
-	/* Select single conversion mode */
-	if (TI_BANDGAP_HAS(bgp, MODE_CONFIG))
-		RMW_BITS(bgp, id, bgap_mode_ctrl, mode_ctrl_mask, 0);
+	struct temp_sensor_registers *tsr = bgp->conf->sensors[id].registers;
+	void __iomem *temp_sensor_ctrl = bgp->base + tsr->temp_sensor_ctrl;
+	int error;
+	u32 val;
+
+	/* Select continuous or single conversion mode */
+	if (TI_BANDGAP_HAS(bgp, MODE_CONFIG)) {
+		if (TI_BANDGAP_HAS(bgp, CONT_MODE_ONLY))
+			RMW_BITS(bgp, id, bgap_mode_ctrl, mode_ctrl_mask, 1);
+		else
+			RMW_BITS(bgp, id, bgap_mode_ctrl, mode_ctrl_mask, 0);
+	}
 
-	/* Start of Conversion = 1 */
-	RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 1);
+	/* Set Start of Conversion if available */
+	if (tsr->bgap_soc_mask) {
+		RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 1);
 
-	/* Wait for EOCZ going up */
-	tsr = bgp->conf->sensors[id].registers;
+		/* Wait for EOCZ going up */
+		error = readl_poll_timeout_atomic(temp_sensor_ctrl, val,
+						  val & tsr->bgap_eocz_mask,
+						  1, 1000);
+		if (error)
+			dev_warn(bgp->dev, "eocz timed out waiting high\n");
 
-	while (--counter) {
-		if (ti_bandgap_readl(bgp, tsr->temp_sensor_ctrl) &
-		    tsr->bgap_eocz_mask)
-			break;
+		/* Clear Start of Conversion if available */
+		RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 0);
 	}
 
-	/* Start of Conversion = 0 */
-	RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 0);
-
-	/* Wait for EOCZ going down */
-	counter = 1000;
-	while (--counter) {
-		if (!(ti_bandgap_readl(bgp, tsr->temp_sensor_ctrl) &
-		      tsr->bgap_eocz_mask))
-			break;
-	}
+	/* Wait for EOCZ going down, always needed even if no bgap_soc_mask */
+	error = readl_poll_timeout_atomic(temp_sensor_ctrl, val,
+					  !(val & tsr->bgap_eocz_mask),
+					  1, 1500);
+	if (error)
+		dev_warn(bgp->dev, "eocz timed out waiting low\n");
 
 	return 0;
 }

drivers/thermal/ti-soc-thermal/ti-bandgap.h

@@ -280,6 +280,7 @@ struct ti_temp_sensor {
  *	has Errata 814
  * TI_BANDGAP_FEATURE_UNRELIABLE - used when the sensor readings are too
  *	inaccurate.
+ * TI_BANDGAP_FEATURE_CONT_MODE_ONLY - used when single mode hangs the sensor
  * TI_BANDGAP_HAS(b, f) - macro to check if a bandgap device is capable of a
  *      specific feature (above) or not. Return non-zero, if yes.
  */
@@ -295,6 +296,7 @@ struct ti_temp_sensor {
 #define TI_BANDGAP_FEATURE_HISTORY_BUFFER	BIT(9)
 #define TI_BANDGAP_FEATURE_ERRATA_814		BIT(10)
 #define TI_BANDGAP_FEATURE_UNRELIABLE		BIT(11)
+#define TI_BANDGAP_FEATURE_CONT_MODE_ONLY	BIT(12)
 #define TI_BANDGAP_HAS(b, f)			\
 			((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
 

drivers/thermal/ti-soc-thermal/ti-thermal-common.c

@@ -166,6 +166,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 			     char *domain)
 {
 	struct ti_thermal_data *data;
+	int interval;
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
@@ -183,9 +184,10 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 		return PTR_ERR(data->ti_thermal);
 	}
 
+	interval = jiffies_to_msecs(data->ti_thermal->polling_delay_jiffies);
+
 	ti_bandgap_set_sensor_data(bgp, id, data);
-	ti_bandgap_write_update_interval(bgp, data->sensor_id,
-					data->ti_thermal->polling_delay);
+	ti_bandgap_write_update_interval(bgp, data->sensor_id, interval);
 
 	return 0;
 }

drivers/thermal/zx2967_thermal.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ZTE's zx2967 family thermal sensor driver
- *
- * Copyright (C) 2017 ZTE Ltd.
- *
- * Author: Baoyou Xie <baoyou.xie@linaro.org>
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/iopoll.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/thermal.h>
-
-/* Power Mode: 0->low 1->high */
-#define ZX2967_THERMAL_POWER_MODE	0
-#define ZX2967_POWER_MODE_LOW		0
-#define ZX2967_POWER_MODE_HIGH		1
-
-/* DCF Control Register */
-#define ZX2967_THERMAL_DCF		0x4
-#define ZX2967_DCF_EN			BIT(1)
-#define ZX2967_DCF_FREEZE		BIT(0)
-
-/* Selection Register */
-#define ZX2967_THERMAL_SEL		0x8
-
-/* Control Register */
-#define ZX2967_THERMAL_CTRL		0x10
-
-#define ZX2967_THERMAL_READY		BIT(12)
-#define ZX2967_THERMAL_TEMP_MASK	GENMASK(11, 0)
-#define ZX2967_THERMAL_ID_MASK		0x18
-#define ZX2967_THERMAL_ID		0x10
-
-#define ZX2967_GET_TEMP_TIMEOUT_US	(100 * 1024)
-
-/**
- * struct zx2967_thermal_priv - zx2967 thermal sensor private structure
- * @tzd: struct thermal_zone_device where the sensor is registered
- * @lock: prevents read sensor in parallel
- * @clk_topcrm: topcrm clk structure
- * @clk_apb: apb clk structure
- * @regs: pointer to base address of the thermal sensor
- * @dev: struct device pointer
- */
-
-struct zx2967_thermal_priv {
-	struct thermal_zone_device	*tzd;
-	struct mutex			lock;
-	struct clk			*clk_topcrm;
-	struct clk			*clk_apb;
-	void __iomem			*regs;
-	struct device			*dev;
-};
-
-static int zx2967_thermal_get_temp(void *data, int *temp)
-{
-	void __iomem *regs;
-	struct zx2967_thermal_priv *priv = data;
-	u32 val;
-	int ret;
-
-	if (!priv->tzd)
-		return -EAGAIN;
-
-	regs = priv->regs;
-	mutex_lock(&priv->lock);
-	writel_relaxed(ZX2967_POWER_MODE_LOW,
-		       regs + ZX2967_THERMAL_POWER_MODE);
-	writel_relaxed(ZX2967_DCF_EN, regs + ZX2967_THERMAL_DCF);
-
-	val = readl_relaxed(regs + ZX2967_THERMAL_SEL);
-	val &= ~ZX2967_THERMAL_ID_MASK;
-	val |= ZX2967_THERMAL_ID;
-	writel_relaxed(val, regs + ZX2967_THERMAL_SEL);
-
-	/*
-	 * Must wait for a while, surely it's a bit odd.
-	 * otherwise temperature value we got has a few deviation, even if
-	 * the THERMAL_READY bit is set.
-	 */
-	usleep_range(100, 300);
-	ret = readx_poll_timeout(readl, regs + ZX2967_THERMAL_CTRL,
-				 val, val & ZX2967_THERMAL_READY, 300,
-				 ZX2967_GET_TEMP_TIMEOUT_US);
-	if (ret) {
-		dev_err(priv->dev, "Thermal sensor data timeout\n");
-		goto unlock;
-	}
-
-	writel_relaxed(ZX2967_DCF_FREEZE | ZX2967_DCF_EN,
-		       regs + ZX2967_THERMAL_DCF);
-	val = readl_relaxed(regs + ZX2967_THERMAL_CTRL)
-			 & ZX2967_THERMAL_TEMP_MASK;
-	writel_relaxed(ZX2967_POWER_MODE_HIGH,
-		       regs + ZX2967_THERMAL_POWER_MODE);
-
-	/*
-	 * Calculate temperature
-	 * In dts, slope is multiplied by 1000.
-	 */
-	*temp = DIV_ROUND_CLOSEST(((s32)val + priv->tzd->tzp->offset) * 1000,
-				  priv->tzd->tzp->slope);
-
-unlock:
-	mutex_unlock(&priv->lock);
-	return ret;
-}
-
-static const struct thermal_zone_of_device_ops zx2967_of_thermal_ops = {
-	.get_temp = zx2967_thermal_get_temp,
-};
-
-static int zx2967_thermal_probe(struct platform_device *pdev)
-{
-	struct zx2967_thermal_priv *priv;
-	struct resource *res;
-	int ret;
-
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(priv->regs))
-		return PTR_ERR(priv->regs);
-
-	priv->clk_topcrm = devm_clk_get(&pdev->dev, "topcrm");
-	if (IS_ERR(priv->clk_topcrm)) {
-		ret = PTR_ERR(priv->clk_topcrm);
-		dev_err(&pdev->dev, "failed to get topcrm clock: %d\n", ret);
-		return ret;
-	}
-
-	ret = clk_prepare_enable(priv->clk_topcrm);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to enable topcrm clock: %d\n",
-			ret);
-		return ret;
-	}
-
-	priv->clk_apb = devm_clk_get(&pdev->dev, "apb");
-	if (IS_ERR(priv->clk_apb)) {
-		ret = PTR_ERR(priv->clk_apb);
-		dev_err(&pdev->dev, "failed to get apb clock: %d\n", ret);
-		goto disable_clk_topcrm;
-	}
-
-	ret = clk_prepare_enable(priv->clk_apb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to enable apb clock: %d\n",
-			ret);
-		goto disable_clk_topcrm;
-	}
-
-	mutex_init(&priv->lock);
-	priv->tzd = thermal_zone_of_sensor_register(&pdev->dev,
-					0, priv, &zx2967_of_thermal_ops);
-
-	if (IS_ERR(priv->tzd)) {
-		ret = PTR_ERR(priv->tzd);
-		dev_err(&pdev->dev, "failed to register sensor: %d\n", ret);
-		goto disable_clk_all;
-	}
-
-	if (priv->tzd->tzp->slope == 0) {
-		thermal_zone_of_sensor_unregister(&pdev->dev, priv->tzd);
-		dev_err(&pdev->dev, "coefficients of sensor is invalid\n");
-		ret = -EINVAL;
-		goto disable_clk_all;
-	}
-
-	priv->dev = &pdev->dev;
-	platform_set_drvdata(pdev, priv);
-
-	return 0;
-
-disable_clk_all:
-	clk_disable_unprepare(priv->clk_apb);
-disable_clk_topcrm:
-	clk_disable_unprepare(priv->clk_topcrm);
-	return ret;
-}
-
-static int zx2967_thermal_exit(struct platform_device *pdev)
-{
-	struct zx2967_thermal_priv *priv = platform_get_drvdata(pdev);
-
-	thermal_zone_of_sensor_unregister(&pdev->dev, priv->tzd);
-	clk_disable_unprepare(priv->clk_topcrm);
-	clk_disable_unprepare(priv->clk_apb);
-
-	return 0;
-}
-
-static const struct of_device_id zx2967_thermal_id_table[] = {
-	{ .compatible = "zte,zx296718-thermal" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, zx2967_thermal_id_table);
-
-#ifdef CONFIG_PM_SLEEP
-static int zx2967_thermal_suspend(struct device *dev)
-{
-	struct zx2967_thermal_priv *priv = dev_get_drvdata(dev);
-
-	if (priv && priv->clk_topcrm)
-		clk_disable_unprepare(priv->clk_topcrm);
-
-	if (priv && priv->clk_apb)
-		clk_disable_unprepare(priv->clk_apb);
-
-	return 0;
-}
-
-static int zx2967_thermal_resume(struct device *dev)
-{
-	struct zx2967_thermal_priv *priv = dev_get_drvdata(dev);
-	int error;
-
-	error = clk_prepare_enable(priv->clk_topcrm);
-	if (error)
-		return error;
-
-	error = clk_prepare_enable(priv->clk_apb);
-	if (error) {
-		clk_disable_unprepare(priv->clk_topcrm);
-		return error;
-	}
-
-	return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(zx2967_thermal_pm_ops,
-			 zx2967_thermal_suspend, zx2967_thermal_resume);
-
-static struct platform_driver zx2967_thermal_driver = {
-	.probe = zx2967_thermal_probe,
-	.remove = zx2967_thermal_exit,
-	.driver = {
-		.name = "zx2967_thermal",
-		.of_match_table = zx2967_thermal_id_table,
-		.pm = &zx2967_thermal_pm_ops,
-	},
-};
-module_platform_driver(zx2967_thermal_driver);
-
-MODULE_AUTHOR("Baoyou Xie <baoyou.xie@linaro.org>");
-MODULE_DESCRIPTION("ZTE zx2967 thermal driver");
-MODULE_LICENSE("GPL v2");

include/linux/iio/adc/qcom-vadc-common.h

@@ -158,6 +158,9 @@ int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
 		    const struct adc5_data *data,
 		    u16 adc_code, int *result_mdec);
 
+u16 qcom_adc_tm5_temp_volt_scale(unsigned int prescale_ratio,
+				 u32 full_scale_code_volt, int temp);
+
 int qcom_adc5_prescaling_from_dt(u32 num, u32 den);
 
 int qcom_adc5_hw_settle_time_from_dt(u32 value, const unsigned int *hw_settle);

include/linux/thermal.h

@@ -17,7 +17,6 @@
 #include <linux/workqueue.h>
 #include <uapi/linux/thermal.h>
 
-#define THERMAL_TRIPS_NONE	-1
 #define THERMAL_MAX_TRIPS	12
 
 /* invalid cooling state */
@@ -77,8 +76,6 @@ struct thermal_zone_device_ops {
 	int (*set_emul_temp) (struct thermal_zone_device *, int);
 	int (*get_trend) (struct thermal_zone_device *, int,
 			  enum thermal_trend *);
-	int (*notify) (struct thermal_zone_device *, int,
-		       enum thermal_trip_type);
 	void (*hot)(struct thermal_zone_device *);
 	void (*critical)(struct thermal_zone_device *);
 };
@@ -118,9 +115,9 @@ struct thermal_cooling_device {
  * @devdata:	private pointer for device private data
  * @trips:	number of trip points the thermal zone supports
  * @trips_disabled;	bitmap for disabled trips
- * @passive_delay:	number of milliseconds to wait between polls when
+ * @passive_delay_jiffies: number of jiffies to wait between polls when
  *			performing passive cooling.
- * @polling_delay:	number of milliseconds to wait between polls when
+ * @polling_delay_jiffies: number of jiffies to wait between polls when
  *			checking whether trip points have been crossed (0 for
  *			interrupt driven systems)
  * @temperature:	current temperature.  This is only for core code,
@@ -133,9 +130,6 @@ struct thermal_cooling_device {
 			trip point.
  * @prev_high_trip:	the above current temperature if you've crossed a
 			passive trip point.
- * @forced_passive:	If > 0, temperature at which to switch on all ACPI
- *			processor cooling devices.  Currently only used by the
- *			step-wise governor.
  * @need_update:	if equals 1, thermal_zone_device_update needs to be invoked.
  * @ops:	operations this &thermal_zone_device supports
  * @tzp:	thermal zone parameters
@@ -161,15 +155,14 @@ struct thermal_zone_device {
 	void *devdata;
 	int trips;
 	unsigned long trips_disabled;	/* bitmap for disabled trips */
-	int passive_delay;
-	int polling_delay;
+	unsigned long passive_delay_jiffies;
+	unsigned long polling_delay_jiffies;
 	int temperature;
 	int last_temperature;
 	int emul_temperature;
 	int passive;
 	int prev_low_trip;
 	int prev_high_trip;
-	unsigned int forced_passive;
 	atomic_t need_update;
 	struct thermal_zone_device_ops *ops;
 	struct thermal_zone_params *tzp;
@@ -397,7 +390,6 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
 int thermal_zone_get_slope(struct thermal_zone_device *tz);
 int thermal_zone_get_offset(struct thermal_zone_device *tz);
 
-void thermal_cdev_update(struct thermal_cooling_device *);
 void thermal_notify_framework(struct thermal_zone_device *, int);
 int thermal_zone_device_enable(struct thermal_zone_device *tz);
 int thermal_zone_device_disable(struct thermal_zone_device *tz);
@@ -444,8 +436,6 @@ static inline int thermal_zone_get_offset(
 		struct thermal_zone_device *tz)
 { return -ENODEV; }
 
-static inline void thermal_cdev_update(struct thermal_cooling_device *cdev)
-{ }
 static inline void thermal_notify_framework(struct thermal_zone_device *tz,
 	int trip)
 { }