From: Wei Ni <wni@nvidia.com>
To: daniel.lezcano@linaro.org, edubezval@gmail.com, robh@kernel.org
Cc: thierry.reding@gmail.com, linux-tegra@vger.kernel.org,
rui.zhang@intel.com, srikars@nvidia.com,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org, Wei Ni <wni@nvidia.com>
Subject: [PATCH v2 01/12] of: Add bindings of thermtrip for Tegra soctherm
Date: Thu, 21 Feb 2019 18:18:36 +0800 [thread overview]
Message-ID: <1550744327-4677-2-git-send-email-wni@nvidia.com> (raw)
In-Reply-To: <1550744327-4677-1-git-send-email-wni@nvidia.com>
Add optional property "nvidia,thermtrips".
If present, these trips will be used as HW shutdown trips,
and critical trips will be used as SW shutdown trips.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
.../bindings/thermal/nvidia,tegra124-soctherm.txt | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
index b6c0ae53d4dc..ab66d6feab4b 100644
--- a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
+++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
@@ -55,10 +55,21 @@ Required properties :
- #cooling-cells: Should be 1. This cooling device only support on/off state.
See ./thermal.txt for a description of this property.
+Optional properties:
+- nvidia,thermtrips : When present, this property specifies the temperature at
+ which the soctherm hardware will assert the thermal trigger signal to the
+ Power Management IC, which can be configured to reset or shutdown the device.
+ It is an array of pairs where each pair represents a tsensor id followed by a
+ temperature in milli Celcius. In the absence of this property the critical
+ trip point will be used for thermtrip temperature.
+
Note:
-- the "critical" type trip points will be set to SOC_THERM hardware as the
-shut down temperature. Once the temperature of this thermal zone is higher
-than it, the system will be shutdown or reset by hardware.
+- the "critical" type trip points will be used to set the temperature at which
+the SOC_THERM hardware will assert a thermal trigger if the "nvidia,thermtrips"
+property is missing. When the thermtrips property is present, the breach of a
+critical trip point is reported back to the thermal framework to implement
+software shutdown.
+
- the "hot" type trip points will be set to SOC_THERM hardware as the throttle
temperature. Once the the temperature of this thermal zone is higher
than it, it will trigger the HW throttle event.
@@ -79,6 +90,9 @@ Example :
#thermal-sensor-cells = <1>;
+ nvidia,thermtrips = <TEGRA124_SOCTHERM_SENSOR_CPU 102500
+ TEGRA124_SOCTHERM_SENSOR_GPU 103000>;
+
throttle-cfgs {
/*
* When the "heavy" cooling device triggered,
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Wei Ni <wni@nvidia.com>
To: <daniel.lezcano@linaro.org>, <edubezval@gmail.com>, <robh@kernel.org>
Cc: <thierry.reding@gmail.com>, <linux-tegra@vger.kernel.org>,
<rui.zhang@intel.com>, <srikars@nvidia.com>,
<linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>,
<devicetree@vger.kernel.org>, Wei Ni <wni@nvidia.com>
Subject: [PATCH v2 01/12] of: Add bindings of thermtrip for Tegra soctherm
Date: Thu, 21 Feb 2019 18:18:36 +0800 [thread overview]
Message-ID: <1550744327-4677-2-git-send-email-wni@nvidia.com> (raw)
In-Reply-To: <1550744327-4677-1-git-send-email-wni@nvidia.com>
Add optional property "nvidia,thermtrips".
If present, these trips will be used as HW shutdown trips,
and critical trips will be used as SW shutdown trips.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
.../bindings/thermal/nvidia,tegra124-soctherm.txt | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
index b6c0ae53d4dc..ab66d6feab4b 100644
--- a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
+++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
@@ -55,10 +55,21 @@ Required properties :
- #cooling-cells: Should be 1. This cooling device only support on/off state.
See ./thermal.txt for a description of this property.
+Optional properties:
+- nvidia,thermtrips : When present, this property specifies the temperature at
+ which the soctherm hardware will assert the thermal trigger signal to the
+ Power Management IC, which can be configured to reset or shutdown the device.
+ It is an array of pairs where each pair represents a tsensor id followed by a
+ temperature in milli Celcius. In the absence of this property the critical
+ trip point will be used for thermtrip temperature.
+
Note:
-- the "critical" type trip points will be set to SOC_THERM hardware as the
-shut down temperature. Once the temperature of this thermal zone is higher
-than it, the system will be shutdown or reset by hardware.
+- the "critical" type trip points will be used to set the temperature at which
+the SOC_THERM hardware will assert a thermal trigger if the "nvidia,thermtrips"
+property is missing. When the thermtrips property is present, the breach of a
+critical trip point is reported back to the thermal framework to implement
+software shutdown.
+
- the "hot" type trip points will be set to SOC_THERM hardware as the throttle
temperature. Once the the temperature of this thermal zone is higher
than it, it will trigger the HW throttle event.
@@ -79,6 +90,9 @@ Example :
#thermal-sensor-cells = <1>;
+ nvidia,thermtrips = <TEGRA124_SOCTHERM_SENSOR_CPU 102500
+ TEGRA124_SOCTHERM_SENSOR_GPU 103000>;
+
throttle-cfgs {
/*
* When the "heavy" cooling device triggered,
--
2.7.4
next prev parent reply other threads:[~2019-02-21 10:18 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 10:18 [PATCH v2 00/12] Add some functionalities for Tegra soctherm Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` Wei Ni [this message]
2019-02-21 10:18 ` [PATCH v2 01/12] of: Add bindings of thermtrip " Wei Ni
2019-02-21 10:18 ` [PATCH v2 02/12] thermal: tegra: support hw and sw shutdown Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 03/12] arm64: dts: tegra210: set thermtrip Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-04-26 3:21 ` Wei Ni
2019-04-26 3:21 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 04/12] of: Add bindings of gpu hw throttle for Tegra soctherm Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 05/12] thermal: tegra: add support for gpu hw-throttle Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 06/12] arm64: dts: tegra210: set gpu hw throttle level Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 07/12] thermal: tegra: add support for thermal IRQ Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 08/12] thermal: tegra: add set_trips functionality Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 09/12] thermal: tegra: add support for EDP IRQ Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 10/12] arm64: dts: tegra210: set EDP interrupt line Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 11/12] of: Add bindings of OC hw throttle for Tegra soctherm Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-02-21 10:18 ` [PATCH v2 12/12] thermal: tegra: enable OC hw throttle Wei Ni
2019-02-21 10:18 ` Wei Ni
2019-04-23 15:46 ` Eduardo Valentin
2019-04-24 8:36 ` Wei Ni
2019-04-24 8:36 ` Wei Ni
2019-04-24 9:49 ` Wei Ni
2019-04-24 9:49 ` Wei Ni
2019-03-26 2:17 ` [PATCH v2 00/12] Add some functionalities for Tegra soctherm Wei Ni
2019-03-26 2:17 ` Wei Ni
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