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 11/12] of: Add bindings of OC hw throttle for Tegra soctherm
Date: Thu, 21 Feb 2019 18:18:46 +0800 [thread overview]
Message-ID: <1550744327-4677-12-git-send-email-wni@nvidia.com> (raw)
In-Reply-To: <1550744327-4677-1-git-send-email-wni@nvidia.com>
Add OC HW throttle configuration for soctherm in DT.
It is used to describe the OCx throttle events.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
.../bindings/thermal/nvidia,tegra124-soctherm.txt | 25 ++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
index cf6d0be56b7a..f02f38527a6b 100644
--- a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
+++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
@@ -64,6 +64,20 @@ 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: The following properties are T210 specific and
+ valid only for OCx throttle events.
+ - nvidia,count-threshold: Specifies the number of OC events that are
+ required for triggering an interrupt. Interrupts are not triggered if
+ the property is missing. A value of 0 will interrupt on every OC alarm.
+ - nvidia,polarity-active-low: Configures the polarity of the OC alaram
+ signal. If present, this means assert low, otherwise assert high.
+ - nvidia,alarm-filter: Number of clocks to filter event. When the filter
+ expires (which means the OC event has not occurred for a long time),
+ the counter is cleared and filter is rearmed. Default value is 0.
+ - nvidia,throttle-period-us: Specifies the number of uSec for which
+ throttling is engaged after the OC event is deasserted. Default value
+ is 0.
+
Optional properties:
- nvidia,thermtrips : When present, this property specifies the temperature at
which the soctherm hardware will assert the thermal trigger signal to the
@@ -134,6 +148,17 @@ Example :
* arbiter will select the highest priority as the final throttle
* settings to skip cpu pulse.
*/
+
+ throttle_oc1: oc1 {
+ nvidia,priority = <50>;
+ nvidia,polarity-active-low;
+ nvidia,count-threshold = <100>;
+ nvidia,alarm-filter = <5100000>;
+ nvidia,throttle-period-us = <0>;
+ nvidia,cpu-throt-percent = <75>;
+ nvidia,gpu-throt-level =
+ <TEGRA_SOCTHERM_THROT_LEVEL_MED>;
+ };
};
};
--
2.7.4
next prev parent reply other threads:[~2019-02-21 10:18 UTC|newest]
Thread overview: 18+ 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 ` [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 ` [PATCH v2 03/12] arm64: dts: tegra210: set thermtrip 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 ` [PATCH v2 05/12] thermal: tegra: add support for gpu hw-throttle 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 ` [PATCH v2 07/12] thermal: tegra: add support for thermal IRQ Wei Ni
2019-02-21 10:18 ` [PATCH v2 08/12] thermal: tegra: add set_trips functionality 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 ` [PATCH v2 10/12] arm64: dts: tegra210: set EDP interrupt line Wei Ni
2019-02-21 10:18 ` Wei Ni [this message]
2019-02-21 10:18 ` [PATCH v2 12/12] thermal: tegra: enable OC hw throttle Wei Ni
2019-04-23 15:46 ` Eduardo Valentin
2019-04-24 8:36 ` 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
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