linux-kernel - Re: [PATCH v5 3/4] ARM: tegra: Add thermal trip points for Jetson TK1

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Date:	Wed, 24 Sep 2014 21:34:16 +0300
From:	Mikko Perttunen <mikko.perttunen@...si.fi>
To:	Eduardo Valentin <edubezval@...il.com>,
	Mikko Perttunen <mperttunen@...dia.com>
CC:	rui.zhang@...el.com, swarren@...dotorg.org,
	thierry.reding@...il.com, linux-pm@...r.kernel.org,
	linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, juha-matti.tilli@....fi
Subject: Re: [PATCH v5 3/4] ARM: tegra: Add thermal trip points for Jetson
 TK1

On 09/24/2014 09:32 PM, Eduardo Valentin wrote:
> Hello Mikko,
>
> On Thu, Aug 21, 2014 at 01:17:21PM +0300, Mikko Perttunen wrote:
>> This adds critical trip points to the Jetson TK1 device tree.
>> The device will do a controlled shutdown when either the CPU, GPU
>> or MEM thermal zone reaches 101 degrees Celsius.
>>
>> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
>> ---
>> v5: added cooling-maps nodes
>>
>
> OK. But no cooling map entry in it. What was the reason again you don't
> need/want to add the maps?

There is currently no cooling device to map to.

Mikko

>
>>   arch/arm/boot/dts/tegra124-jetson-tk1.dts | 41 +++++++++++++++++++++++++++++++
>>   1 file changed, 41 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> index 0cdb5cf..bcdab7f 100644
>> --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> @@ -1876,4 +1876,45 @@
>>   			 <&tegra_car TEGRA124_CLK_EXTERN1>;
>>   		clock-names = "pll_a", "pll_a_out0", "mclk";
>>   	};
>> +
>> +	thermal-zones {
>> +		cpu {
>> +			trips {
>> +				trip@0 {
>> +					temperature = <101000>;
>> +					hysteresis = <0>;
>> +					type = "critical";
>> +				};
>> +			};
>> +
>> +			cooling-maps {
>> +			};
>> +		};
>> +
>> +		mem {
>> +			trips {
>> +				trip@0 {
>> +					temperature = <101000>;
>> +					hysteresis = <0>;
>> +					type = "critical";
>> +				};
>> +			};
>> +
>> +			cooling-maps {
>> +			};
>> +		};
>> +
>> +		gpu {
>> +			trips {
>> +				trip@0 {
>> +					temperature = <101000>;
>> +					hysteresis = <0>;
>> +					type = "critical";
>> +				};
>> +			};
>> +
>> +			cooling-maps {
>> +			};
>> +		};
>> +	};
>>   };
>> --
>> 1.8.1.5
>>
> --
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