[PATCH 01/11] thermal: remove unused function parameter

[PATCH 01/11] thermal: remove unused function parameter

[Lukasz Luba]

Clean unused parameter from internal framework function.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 drivers/thermal/thermal_core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 6ab9823..2c6d72a 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -313,9 +313,7 @@ static void monitor_thermal_zone(struct thermal_zone_device *tz)
 	mutex_unlock(&tz->lock);
 }
 
-static void handle_non_critical_trips(struct thermal_zone_device *tz,
-				      int trip,
-				      enum thermal_trip_type trip_type)
+static void handle_non_critical_trips(struct thermal_zone_device *tz, int trip)
 {
 	tz->governor ? tz->governor->throttle(tz, trip) :
 		       def_governor->throttle(tz, trip);
@@ -416,7 +414,7 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 	if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
 		handle_critical_trips(tz, trip, type);
 	else
-		handle_non_critical_trips(tz, trip, type);
+		handle_non_critical_trips(tz, trip);
 	/*
 	 * Alright, we handled this trip successfully.
 	 * So, start monitoring again.
-- 
2.7.4

[PATCH 02/11] thermal: add irq-mode configuration for trip point

[Lukasz Luba]

This patch adds support irq mode in trip point.
When that flag is set in DT, there is no need for polling
int thermal framework. Crossing the trip point will rise an irq.
The naming convention for tip point 'type' can be confussing
and 'passive' (whic is passive cooling) might be interpretted wrongly.

This mechanism prevents from missue and adds explicit setting
for hardware which support interrupts for pre-configured temperature
threshold.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 drivers/thermal/of-thermal.c   | 17 +++++++++++++++++
 drivers/thermal/thermal_core.c | 10 ++++++++--
 include/linux/thermal.h        |  5 +++++
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 4f28165..db0942a 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -289,6 +289,20 @@ static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
 	return 0;
 }
 
+static int
+of_thermal_get_trip_irq_mode(struct thermal_zone_device *tz, int trip,
+			     bool *mode)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (trip >= data->ntrips || trip < 0)
+		return -EDOM;
+
+	*mode = data->trips[trip].irq_mode;
+
+	return 0;
+}
+
 static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
 				    int *temp)
 {
@@ -371,6 +385,7 @@ static struct thermal_zone_device_ops of_thermal_ops = {
 	.set_mode = of_thermal_set_mode,
 
 	.get_trip_type = of_thermal_get_trip_type,
+	.get_trip_irq_mode = of_thermal_get_trip_irq_mode,
 	.get_trip_temp = of_thermal_get_trip_temp,
 	.set_trip_temp = of_thermal_set_trip_temp,
 	.get_trip_hyst = of_thermal_get_trip_hyst,
@@ -779,6 +794,8 @@ static int thermal_of_populate_trip(struct device_node *np,
 		return ret;
 	}
 
+	trip->irq_mode = of_property_read_bool(np, "irq-mode");
+
 	/* Required for cooling map matching */
 	trip->np = np;
 	of_node_get(np);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 2c6d72a..f569532 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -404,6 +404,7 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 {
 	enum thermal_trip_type type;
+	bool irq_mode = false;
 
 	/* Ignore disabled trip points */
 	if (test_bit(trip, &tz->trips_disabled))
@@ -417,9 +418,14 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 		handle_non_critical_trips(tz, trip);
 	/*
 	 * Alright, we handled this trip successfully.
-	 * So, start monitoring again.
+	 * So, start monitoring in polling mode if
+	 * trip is not using irq HW support.
 	 */
-	monitor_thermal_zone(tz);
+	if (tz->ops->get_trip_irq_mode)
+		tz->ops->get_trip_irq_mode(tz, trip, &irq_mode);
+
+	if (!irq_mode)
+		monitor_thermal_zone(tz);
 }
 
 static void update_temperature(struct thermal_zone_device *tz)
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5f4705f..b064565 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -103,6 +103,7 @@ struct thermal_zone_device_ops {
 		enum thermal_device_mode);
 	int (*get_trip_type) (struct thermal_zone_device *, int,
 		enum thermal_trip_type *);
+	int (*get_trip_irq_mode) (struct thermal_zone_device *, int, bool *);
 	int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
 	int (*set_trip_temp) (struct thermal_zone_device *, int, int);
 	int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);
@@ -196,6 +197,7 @@ struct thermal_zone_device {
 	struct thermal_attr *trip_temp_attrs;
 	struct thermal_attr *trip_type_attrs;
 	struct thermal_attr *trip_hyst_attrs;
+	struct thermal_attr *trip_irq_mode_attrs;
 	void *devdata;
 	int trips;
 	unsigned long trips_disabled;	/* bitmap for disabled trips */
@@ -364,6 +366,8 @@ struct thermal_zone_of_device_ops {
  * @temperature: temperature value in miliCelsius
  * @hysteresis: relative hysteresis in miliCelsius
  * @type: trip point type
+ * @irq_mode: to not use polling in framework set support of HW irq (which will
+ *	      be triggered when temperature reaches this level).
  */
 
 struct thermal_trip {
@@ -371,6 +375,7 @@ struct thermal_trip {
 	int temperature;
 	int hysteresis;
 	enum thermal_trip_type type;
+	bool irq_mode;
 };
 
 /* Function declarations */
-- 
2.7.4

[PATCH 03/11] thermal: add new sysfs file for irq-mode

[Lukasz Luba]

Patch adds show functions for irq-mode feature.
It allocates new attributes and extends the old list.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 drivers/thermal/thermal_sysfs.c | 53 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 51 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 2241cea..372b439 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -21,6 +21,8 @@
 
 #include "thermal_core.h"
 
+#define TRIP_ATTR_NUM 4
+
 /* sys I/F for thermal zone */
 
 static ssize_t
@@ -167,6 +169,28 @@ trip_point_temp_show(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
+trip_point_irq_mode_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct thermal_zone_device *tz = to_thermal_zone(dev);
+	int trip, ret;
+	bool mode;
+
+	if (!tz->ops->get_trip_irq_mode)
+		return -EPERM;
+
+	if (sscanf(attr->attr.name, "trip_point_%d_irq", &trip) != 1)
+		return -EINVAL;
+
+	ret = tz->ops->get_trip_irq_mode(tz, trip, &mode);
+
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t
 trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
 		      const char *buf, size_t count)
 {
@@ -520,10 +544,19 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 	if (!tz->trip_type_attrs)
 		return -ENOMEM;
 
+	tz->trip_irq_mode_attrs = kcalloc(tz->trips,
+					  sizeof(*tz->trip_irq_mode_attrs),
+					  GFP_KERNEL);
+	if (!tz->trip_irq_mode_attrs) {
+		kfree(tz->trip_type_attrs);
+		return -ENOMEM;
+	}
+
 	tz->trip_temp_attrs = kcalloc(tz->trips, sizeof(*tz->trip_temp_attrs),
 				      GFP_KERNEL);
 	if (!tz->trip_temp_attrs) {
 		kfree(tz->trip_type_attrs);
+		kfree(tz->trip_irq_mode_attrs);
 		return -ENOMEM;
 	}
 
@@ -533,14 +566,17 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 					      GFP_KERNEL);
 		if (!tz->trip_hyst_attrs) {
 			kfree(tz->trip_type_attrs);
+			kfree(tz->trip_irq_mode_attrs);
 			kfree(tz->trip_temp_attrs);
 			return -ENOMEM;
 		}
 	}
 
-	attrs = kcalloc(tz->trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
+	attrs = kcalloc(tz->trips * TRIP_ATTR_NUM + 1, sizeof(*attrs),
+			GFP_KERNEL);
 	if (!attrs) {
 		kfree(tz->trip_type_attrs);
+		kfree(tz->trip_irq_mode_attrs);
 		kfree(tz->trip_temp_attrs);
 		if (tz->ops->get_trip_hyst)
 			kfree(tz->trip_hyst_attrs);
@@ -559,6 +595,19 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		tz->trip_type_attrs[indx].attr.show = trip_point_type_show;
 		attrs[indx] = &tz->trip_type_attrs[indx].attr.attr;
 
+		/* create trip irq_mode attribute */
+		snprintf(tz->trip_irq_mode_attrs[indx].name,
+			 THERMAL_NAME_LENGTH, "trip_point_%d_irq", indx);
+
+		sysfs_attr_init(&tz->trip_irq_mode_attrs[indx].attr.attr);
+		tz->trip_irq_mode_attrs[indx].attr.attr.name =
+			tz->trip_irq_mode_attrs[indx].name;
+		tz->trip_irq_mode_attrs[indx].attr.attr.mode = S_IRUGO;
+		tz->trip_irq_mode_attrs[indx].attr.show =
+			trip_point_irq_mode_show;
+		attrs[indx + tz->trips * 3] =
+			&tz->trip_irq_mode_attrs[indx].attr.attr;
+
 		/* create trip temp attribute */
 		snprintf(tz->trip_temp_attrs[indx].name, THERMAL_NAME_LENGTH,
 			 "trip_point_%d_temp", indx);
@@ -595,7 +644,7 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		attrs[indx + tz->trips * 2] =
 					&tz->trip_hyst_attrs[indx].attr.attr;
 	}
-	attrs[tz->trips * 3] = NULL;
+	attrs[tz->trips * TRIP_ATTR_NUM] = NULL;
 
 	tz->trips_attribute_group.attrs = attrs;
 
-- 
2.7.4

[PATCH 04/11] Doc: thermal: new irq-mode for trip point

[Lukasz Luba]

Thermal trip point gets new flag in DT: irq-mode.
Trip point may have a new explicit flag which indicate
irq support when the temperature is met (so the thermal framework
deos not need set polling for it).
It is useful for 'passive' cooling trip point,
which now will not be register for polling the temperature.

Update documentation about irq-mode for trip points.
The new sysfs file shows 1 if the trip point supports irq.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 Documentation/thermal/sysfs-api.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index 9113997..e405724 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -272,6 +272,7 @@ Thermal zone device sys I/F, created once it's registered:
     |---trip_point_[0-*]_temp:	Trip point temperature
     |---trip_point_[0-*]_type:	Trip point type
     |---trip_point_[0-*]_hyst:	Hysteresis value for this trip point
+    |---trip_point_[0-*]_irq:	Trip point supports triggering irq
     |---emul_temp:		Emulated temperature set node
     |---sustainable_power:      Sustainable dissipatable power
     |---k_po:                   Proportional term during temperature overshoot
@@ -365,6 +366,10 @@ trip_point_[0-*]_type
 	thermal zone.
 	RO, Optional
 
+trip_point_[0-*]_irq
+	Boolean which indicate that the trip point triggers irq.
+	RO, Optional
+
 trip_point_[0-*]_hyst
 	The hysteresis value for a trip point, represented as an integer
 	Unit: Celsius
@@ -544,12 +549,16 @@ method, the sys I/F structure will be built like this:
     |---available_policies:	step_wise fair_share
     |---trip_point_0_temp:	100000
     |---trip_point_0_type:	critical
+    |---trip_point_0_irq:	1
     |---trip_point_1_temp:	80000
     |---trip_point_1_type:	passive
+    |---trip_point_1_irq:	1
     |---trip_point_2_temp:	70000
     |---trip_point_2_type:	active0
+    |---trip_point_2_irq:	0
     |---trip_point_3_temp:	60000
     |---trip_point_3_type:	active1
+    |---trip_point_3_irq:	1
     |---cdev0:			--->/sys/class/thermal/cooling_device0
     |---cdev0_trip_point:	1	/* cdev0 can be used for passive */
     |---cdev0_weight:           1024
-- 
2.7.4

[PATCH 05/11] Doc: DT: thermal: new irq-mode for trip point

[Lukasz Luba]

Thermal trip point gets new flag in DT: irq-mode.
Trip point may have a new explicit flag which indicate
irq support when the temperature is met (so the thermal framework
deos not need set polling for it).
It is useful for 'passive' cooling trip point,
which now will not register for polling the temperature.

Update documentation about irq-mode for trip points.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 Documentation/devicetree/bindings/thermal/thermal.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index eb7ee91..c98a355 100644
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt
@@ -90,6 +90,10 @@ Required properties:
 	"critical":	Hardware not reliable.
   Type: string
 
+- irq-mode:		A flag indicating that trip rises irq, so there is no
+  Type: bool		need of polling in thermal framework.
+  Size: one cell
+
 * Cooling device maps
 
 The cooling device maps node is a node to describe how cooling devices
@@ -256,16 +260,19 @@ thermal-zones {
 				temperature = <90000>; /* millicelsius */
 				hysteresis = <2000>; /* millicelsius */
 				type = "active";
+				irq-mode;
 			};
 			cpu_alert1: cpu-alert1 {
 				temperature = <100000>; /* millicelsius */
 				hysteresis = <2000>; /* millicelsius */
 				type = "passive";
+				irq-mode;
 			};
 			cpu_crit: cpu-crit {
 				temperature = <125000>; /* millicelsius */
 				hysteresis = <2000>; /* millicelsius */
 				type = "critical";
+				irq-mode;
 			};
 		};
 
-- 
2.7.4

[PATCH 06/11] DT: arm64: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi | 105 ++++++++++++++++---------
 1 file changed, 70 insertions(+), 35 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
index fe3a0b1..c4330f6 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
@@ -17,37 +17,44 @@ thermal-zones {
 			atlas0_alert_0: atlas0-alert-0 {
 				temperature = <65000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_1: atlas0-alert-1 {
 				temperature = <70000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_2: atlas0-alert-2 {
 				temperature = <75000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_3: atlas0-alert-3 {
 				temperature = <80000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_4: atlas0-alert-4 {
 				temperature = <85000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_5: atlas0-alert-5 {
 				temperature = <90000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas0_alert_6: atlas0-alert-6 {
 				temperature = <95000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 		};
 
@@ -98,37 +105,44 @@ thermal-zones {
 			atlas1_alert_0: atlas1-alert-0 {
 				temperature = <65000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_1: atlas1-alert-1 {
 				temperature = <70000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_2: atlas1-alert-2 {
 				temperature = <75000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_3: atlas1-alert-3 {
 				temperature = <80000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_4: atlas1-alert-4 {
 				temperature = <85000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_5: atlas1-alert-5 {
 				temperature = <90000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			atlas1_alert_6: atlas1-alert-6 {
 				temperature = <95000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 		};
 	};
@@ -141,37 +155,44 @@ thermal-zones {
 			g3d_alert_0: g3d-alert-0 {
 				temperature = <70000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_1: g3d-alert-1 {
 				temperature = <75000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_2: g3d-alert-2 {
 				temperature = <80000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_3: g3d-alert-3 {
 				temperature = <85000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_4: g3d-alert-4 {
 				temperature = <90000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_5: g3d-alert-5 {
 				temperature = <95000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			g3d_alert_6: g3d-alert-6 {
 				temperature = <100000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 		};
 	};
@@ -184,37 +205,44 @@ thermal-zones {
 			apollo_alert_0: apollo-alert-0 {
 				temperature = <65000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_1: apollo-alert-1 {
 				temperature = <70000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_2: apollo-alert-2 {
 				temperature = <75000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_3: apollo-alert-3 {
 				temperature = <80000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_4: apollo-alert-4 {
 				temperature = <85000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_5: apollo-alert-5 {
 				temperature = <90000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			apollo_alert_6: apollo-alert-6 {
 				temperature = <95000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 		};
 
@@ -255,37 +283,44 @@ thermal-zones {
 			isp_alert_0: isp-alert-0 {
 				temperature = <80000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_1: isp-alert-1 {
 				temperature = <85000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_2: isp-alert-2 {
 				temperature = <90000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_3: isp-alert-3 {
 				temperature = <95000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_4: isp-alert-4 {
 				temperature = <100000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_5: isp-alert-5 {
 				temperature = <105000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			isp_alert_6: isp-alert-6 {
 				temperature = <110000>;	/* millicelsius */
 				hysteresis = <1000>;	/* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 		};
 	};
-- 
2.7.4

Re: [PATCH 06/11] DT: arm64: exynos: add support for thermal trip irq-mode

[Krzysztof Kozlowski]

On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>

Hi Lukasz,

Thanks for patches.

I did not receive the first patches in the series. It is okay (depends
on the context) but in such case sending cover letter to all people is
quite useful. It helps to understand the entire patchset. Since I did
not get them, I really do not know:
1. Whether DTS patches are independent?
2. How this fits in the big picture of Exynos thermal?


> This patch adds support for new flash which indicates

What is "flash"?

Please wrap your lines accordingly (75 characters like in
submitting-patches.rst). Current wrapping makes it more difficult to
read.

> that trip point triggers irq when temperature is met.
> Exynos5433 supports 8 trip point which will trigger irq.

"Exynos5433 supports 8 trip points which trigger interrupt."
(or IRQ but not irq)

> Above that number other trip points should be registered
> without 'irq-mode' flag.

Why they should be registered without irq-mode?

> That will force the thermal framework to start polling
> the temperature sensor under configured conditions and
> handle the trip point.

How does it fit into existing polling mode?

>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
> ---
>  arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi | 105 ++++++++++++++++---------
>  1 file changed, 70 insertions(+), 35 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> index fe3a0b1..c4330f6 100644
> --- a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> +++ b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> @@ -17,37 +17,44 @@ thermal-zones {
>                         atlas0_alert_0: atlas0-alert-0 {
>                                 temperature = <65000>;  /* millicelsius */
>                                 hysteresis = <1000>;    /* millicelsius */
> -                               type = "active";
> +                               type = "passive";

Change of active->passive looks irrelevant to this topic. Here and
everywhere else.

Best regards,
Krzysztof

Re: [PATCH 06/11] DT: arm64: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

Hi Krzysztof,

On 10/16/2018 05:09 PM, Krzysztof Kozlowski wrote:
> On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>>
> 
> Hi Lukasz,
> 
> Thanks for patches.
> 
> I did not receive the first patches in the series. It is okay (depends
> on the context) but in such case sending cover letter to all people is
> quite useful. It helps to understand the entire patchset. Since I did
> not get them, I really do not know:
> 1. Whether DTS patches are independent?
> 2. How this fits in the big picture of Exynos thermal?
I have lost your email for my 'cc' command line, my apologies.
I will add you in v2.
Here you can find the cover letter:
https://marc.info/?l=linux-pm&m=153970180314648&w=2
regarding
1. they are independent
2. It will be less confusing and more coherent with documentation
when we use 'passive' for DVFS cooling. Unfortunately, when 'passive'
is set, it registers our trip points for polling and thermal schedules
the work. I had conversation with Daniel regarding this setup,
please check these email:
https://marc.info/?l=linux-kernel&m=153924620318766&w=2
and my response:
https://marc.info/?l=linux-kernel&m=153933708316168&w=2

> 
> 
>> This patch adds support for new flash which indicates
> 
> What is "flash"?
Should be 'flag', thanks for that.
> 
> Please wrap your lines accordingly (75 characters like in
> submitting-patches.rst). Current wrapping makes it more difficult to
> read.
OK
> 
>> that trip point triggers irq when temperature is met.
>> Exynos5433 supports 8 trip point which will trigger irq.
> 
> "Exynos5433 supports 8 trip points which trigger interrupt."
> (or IRQ but not irq)
ACK
> 
>> Above that number other trip points should be registered
>> without 'irq-mode' flag.
> 
> Why they should be registered without irq-mode?
For this HW, only 4 temperatures can be monitored for which IRQ
will fire, AFAIK.
> 
>> That will force the thermal framework to start polling
>> the temperature sensor under configured conditions and
>> handle the trip point.
> 
> How does it fit into existing polling mode?
The existing polling mode is default for 'passive' which does
not have this flag, so nothing changes. The benefit for 'passive'
which are supported by HW IRQ and has this flag is lack of polling
every Xms.
In current situation we are trying to establish this behavior by a
workaround with 'active'. the 'active' in default
does not register polling and waits for IRQs, so the framework is quiet.
This naming tricks are a bit confusing for people, though.

Thank you for comments.

Regards,
Lukasz

> 
>>
>> Cc: Kukjin Kim <kgene@kernel.org>
>> Cc: Krzysztof Kozlowski <krzk@kernel.org>
>> Cc: devicetree@vger.kernel.org
>> Cc: linux-arm-kernel@lists.infradead.org
>> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
>> ---
>>   arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi | 105 ++++++++++++++++---------
>>   1 file changed, 70 insertions(+), 35 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
>> index fe3a0b1..c4330f6 100644
>> --- a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
>> +++ b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
>> @@ -17,37 +17,44 @@ thermal-zones {
>>                          atlas0_alert_0: atlas0-alert-0 {
>>                                  temperature = <65000>;  /* millicelsius */
>>                                  hysteresis = <1000>;    /* millicelsius */
>> -                               type = "active";
>> +                               type = "passive";
> 
> Change of active->passive looks irrelevant to this topic. Here and
> everywhere else.
> 
> Best regards,
> Krzysztof
> 
> 

Re: [PATCH 06/11] DT: arm64: exynos: add support for thermal trip irq-mode

[Krzysztof Kozlowski]

On Tue, 16 Oct 2018 at 17:48, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>
> Hi Krzysztof,
>
> On 10/16/2018 05:09 PM, Krzysztof Kozlowski wrote:
> > On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
> >>
> >
> > Hi Lukasz,
> >
> > Thanks for patches.
> >
> > I did not receive the first patches in the series. It is okay (depends
> > on the context) but in such case sending cover letter to all people is
> > quite useful. It helps to understand the entire patchset. Since I did
> > not get them, I really do not know:
> > 1. Whether DTS patches are independent?
> > 2. How this fits in the big picture of Exynos thermal?
> I have lost your email for my 'cc' command line, my apologies.
> I will add you in v2.
> Here you can find the cover letter:
> https://marc.info/?l=linux-pm&m=153970180314648&w=2
> regarding
> 1. they are independent
> 2. It will be less confusing and more coherent with documentation
> when we use 'passive' for DVFS cooling. Unfortunately, when 'passive'
> is set, it registers our trip points for polling and thermal schedules
> the work. I had conversation with Daniel regarding this setup,
> please check these email:
> https://marc.info/?l=linux-kernel&m=153924620318766&w=2
> and my response:
> https://marc.info/?l=linux-kernel&m=153933708316168&w=2

I see it on the linux-pm, I'll reply there.

Best regards,
Krzysztof

[PATCH 07/11] DT: arm64: exynos7: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi
index d3301b8..39185af 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7-trip-points.dtsi
@@ -11,40 +11,48 @@ trips {
 		temperature = <75000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-1 {
 		temperature = <80000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-2 {
 		temperature = <85000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-3 {
 		temperature = <90000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-4 {
 		temperature = <95000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-5 {
 		temperature = <100000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-6 {
 		temperature = <110000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
 		type = "passive";
+		irq-mode;
 	};
 	cpu-crit-0 {
 		temperature = <115000>; /* millicelsius */
 		hysteresis = <0>; /* millicelsius */
 		type = "critical";
+		irq-mode;
 	};
 };
-- 
2.7.4

Re: [PATCH 07/11] DT: arm64: exynos7: add support for thermal trip irq-mode

[Krzysztof Kozlowski]

On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>
> This patch adds support for new flash which indicates
> that trip point triggers irq when temperature is met.
> Exynos5433 supports 8 trip point which will trigger irq.

Exynos7?

Beside that comments from previous email apply (no need to duplicate them).

Best regards,
Krzysztof

[PATCH 08/11] DT: arm: exynos4: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm/boot/dts/exynos4-cpu-thermal.dtsi | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi b/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
index 021d9fc..5e07289 100644
--- a/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
+++ b/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
@@ -17,22 +17,26 @@ thermal-zones {
 			cpu_alert0: cpu-alert-0 {
 				temperature = <70000>; /* millicelsius */
 				hysteresis = <10000>; /* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			cpu_alert1: cpu-alert-1 {
 				temperature = <95000>; /* millicelsius */
 				hysteresis = <10000>; /* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			cpu_alert2: cpu-alert-2 {
 				temperature = <110000>; /* millicelsius */
 				hysteresis = <10000>; /* millicelsius */
-				type = "active";
+				type = "passive";
+				irq-mode;
 			};
 			cpu_crit0: cpu-crit-0 {
 				temperature = <120000>; /* millicelsius */
 				hysteresis = <0>; /* millicelsius */
 				type = "critical";
+				irq-mode;
 			};
 		};
 		cooling-maps {
-- 
2.7.4

Re: [PATCH 08/11] DT: arm: exynos4: add support for thermal trip irq-mode

[Krzysztof Kozlowski]

On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>
> This patch adds support for new flash which indicates
> that trip point triggers irq when temperature is met.
> Exynos5433 supports 8 trip point which will trigger irq.

Exynos4? 4 trip points?

Beside that other comments apply as well.

Best regards,
Krzysztof

[PATCH 09/11] DT: arm: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm/boot/dts/exynos5420-trip-points.dtsi | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5420-trip-points.dtsi b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
index a67a3807..9e16970 100644
--- a/arch/arm/boot/dts/exynos5420-trip-points.dtsi
+++ b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
@@ -11,21 +11,25 @@ trips {
 	cpu-alert-0 {
 		temperature = <85000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
-		type = "active";
+		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-1 {
 		temperature = <103000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
-		type = "active";
+		type = "passive";
+		irq-mode;
 	};
 	cpu-alert-2 {
 		temperature = <110000>; /* millicelsius */
 		hysteresis = <10000>; /* millicelsius */
-		type = "active";
+		type = "passive";
+		irq-mode;
 	};
 	cpu-crit-0 {
 		temperature = <120000>; /* millicelsius */
 		hysteresis = <0>; /* millicelsius */
 		type = "critical";
+		irq-mode;
 	};
 };
-- 
2.7.4

Re: [PATCH 09/11] DT: arm: exynos: add support for thermal trip irq-mode

[Krzysztof Kozlowski]

On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>
> This patch adds support for new flash which indicates
> that trip point triggers irq when temperature is met.
> Exynos5433 supports 8 trip point which will trigger irq.

Exynos5420? 4 trip points?

BTW, I just noted that you skipped samsung-soc mailing list.

DTS patches always should go through arm-soc so in case of Exynos -
linux-samsung-soc mailing list. The list should be also CC-ed if you
touch other Exynos or Samsung related code and get_maintainers.pl
always point it. Because you skipped it, some people might miss your
patches and definitely Patchwork which I am using won't see them
(https://patchwork.kernel.org/project/linux-samsung-soc/list/).

Best regards,
Krzysztof

Re: [PATCH 09/11] DT: arm: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

On 10/16/2018 05:13 PM, Krzysztof Kozlowski wrote:
> On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>>
>> This patch adds support for new flash which indicates
>> that trip point triggers irq when temperature is met.
>> Exynos5433 supports 8 trip point which will trigger irq.
> 
> Exynos5420? 4 trip point
Thanks, you are right. I will fix the comment in a few places.
> 
> BTW, I just noted that you skipped samsung-soc mailing list.
> 
> DTS patches always should go through arm-soc so in case of Exynos -
> linux-samsung-soc mailing list. The list should be also CC-ed if you
> touch other Exynos or Samsung related code and get_maintainers.pl
> always point it. Because you skipped it, some people might miss your
> patches and definitely Patchwork which I am using won't see them
> (https://patchwork.kernel.org/project/linux-samsung-soc/list/).
OK, I will push v2 through that list also.

Regards,
Lukasz
> 
> Best regards,
> Krzysztof
> 
> 

[PATCH 10/11] DT: arm: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 40 +++++++++++++++-------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 96e281c..dbce706ed 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -59,22 +59,26 @@
 				cpu0_alert0: cpu-alert-0 {
 					temperature = <50000>; /* millicelsius */
 					hysteresis = <5000>; /* millicelsius */
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu0_alert1: cpu-alert-1 {
 					temperature = <60000>; /* millicelsius */
 					hysteresis = <5000>; /* millicelsius */
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu0_alert2: cpu-alert-2 {
 					temperature = <70000>; /* millicelsius */
 					hysteresis = <5000>; /* millicelsius */
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu0_crit0: cpu-crit-0 {
 					temperature = <120000>; /* millicelsius */
 					hysteresis = <0>; /* millicelsius */
 					type = "critical";
+					irq-mode;
 				};
 				/*
 				 * Exynos542x supports only 4 trip-points
@@ -142,22 +146,26 @@
 				cpu1_alert0: cpu-alert-0 {
 					temperature = <50000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu1_alert1: cpu-alert-1 {
 					temperature = <60000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu1_alert2: cpu-alert-2 {
 					temperature = <70000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu1_crit0: cpu-crit-0 {
 					temperature = <120000>;
 					hysteresis = <0>;
 					type = "critical";
+					irq-mode;
 				};
 				cpu1_alert3: cpu-alert-3 {
 					temperature = <70000>;
@@ -209,22 +217,26 @@
 				cpu2_alert0: cpu-alert-0 {
 					temperature = <50000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu2_alert1: cpu-alert-1 {
 					temperature = <60000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu2_alert2: cpu-alert-2 {
 					temperature = <70000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu2_crit0: cpu-crit-0 {
 					temperature = <120000>;
 					hysteresis = <0>;
 					type = "critical";
+					irq-mode;
 				};
 				cpu2_alert3: cpu-alert-3 {
 					temperature = <70000>;
@@ -276,22 +288,26 @@
 				cpu3_alert0: cpu-alert-0 {
 					temperature = <50000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu3_alert1: cpu-alert-1 {
 					temperature = <60000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu3_alert2: cpu-alert-2 {
 					temperature = <70000>;
 					hysteresis = <5000>;
-					type = "active";
+					type = "passive";
+					irq-mode;
 				};
 				cpu3_crit0: cpu-crit-0 {
 					temperature = <120000>;
 					hysteresis = <0>;
 					type = "critical";
+					irq-mode;
 				};
 				cpu3_alert3: cpu-alert-3 {
 					temperature = <70000>;
-- 
2.7.4

[PATCH 11/11] DT: arm: exynos: add support for thermal trip irq-mode

[Lukasz Luba]

This patch adds support for new flash which indicates
that trip point triggers irq when temperature is met.
Exynos5433 supports 8 trip point which will trigger irq.
Above that number other trip points should be registered
without 'irq-mode' flag.
That will force the thermal framework to start polling
the temperature sensor under configured conditions and
handle the trip point.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm/boot/dts/exynos5410-odroidxu.dts | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5410-odroidxu.dts b/arch/arm/boot/dts/exynos5410-odroidxu.dts
index a2046f5..c255466 100644
--- a/arch/arm/boot/dts/exynos5410-odroidxu.dts
+++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts
@@ -121,22 +121,26 @@
 		cpu_alert0: cpu-alert-0 {
 			temperature = <50000>; /* millicelsius */
 			hysteresis = <5000>; /* millicelsius */
-			type = "active";
+			type = "passive";
+			irq-mode;
 		};
 		cpu_alert1: cpu-alert-1 {
 			temperature = <60000>; /* millicelsius */
 			hysteresis = <5000>; /* millicelsius */
-			type = "active";
+			type = "passive";
+			irq-mode;
 		};
 		cpu_alert2: cpu-alert-2 {
 			temperature = <70000>; /* millicelsius */
 			hysteresis = <5000>; /* millicelsius */
-			type = "active";
+			type = "passive";
+			irq-mode;
 		};
 		cpu_crit0: cpu-crit-0 {
 			temperature = <120000>; /* millicelsius */
 			hysteresis = <0>; /* millicelsius */
 			type = "critical";
+			irq-mode;
 		};
 	};
 
-- 
2.7.4