linux-kernel - Re: [PATCH] ARM: dts: exynos: Only Odroid XU3-family boards use DTSI with CPU thermal nodes

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Date:	Tue, 10 May 2016 16:03:07 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Anand Moon <linux.amoon@...il.com>
Cc:	Kukjin Kim <kgene@...nel.org>,
	Lukasz Majewski <l.majewski@...sung.com>,
	Javier Martinez Canillas <javier@....samsung.com>,
	devicetree <devicetree@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH] ARM: dts: exynos: Only Odroid XU3-family boards use DTSI
 with CPU thermal nodes

On 05/10/2016 04:00 PM, Anand Moon wrote:
> Hi Krzysztof,
> 
> On 10 May 2016 at 18:13, Krzysztof Kozlowski <k.kozlowski@...sung.com> wrote:
>> On 05/10/2016 11:29 AM, Anand Moon wrote:
>>>>
>>>> I am sorry but I do not understand.
>>>> 1. Are you saying that my patch causes the issue?
>>>> 2. Are you saying that I should not send some patches because of
>>>> conflicting work? (that would be peculiar...)
>>>> 3. Are you saying that I should not apply this patch to me tree because
>>>> of conflicting work?
>>>> 4. Other?
>>>>
>>>> Best regards.
>>>> Krzysztof
>>>>
>>>>
>>>
>>> Sorry for the confusion it's not about you patch.
>>> The feature is not working correctly as per my testing with the
>>> original source code.
>>> It need to be more tuned or some other approach to the issue need to found.
>>
>> Known issue. You don't have cpufreq cooling enabled. I sent patches for
>> that and they are in the mainline. However cpufreq cooling requires
>> cpufreq which cannot work with BL_SWITCHER and on Exynos542x on
>> exynos_defconfig BL_SWITCHER is enabled.
>>
>> Just disable the BL_Krzysztof.
>>
>> Best regards,
>> Krzysztof
> 
> I have already disabled BL_SWITCHER in my exynos_defconfig. to support
> CONFIG_CPUFREQ_DT.
> 
> But how about adjust the  the cputemp so that all the core will have
> same tip points.


I don't understand you. All of the cores have same trip points.

Best regards,
Krzysztof

> 
> xcpu0-t 0:[ 44][>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>     A50
>      A60       P70            P85                                C120
> ]
> xcpu1-t 1:[ 46][>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>                               A85               A103   A110      C120
> ]
> xcpu2-t 2:[ 51][>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>                          A85               A103   A110      C120 ]
> xcpu3-t 3:[ 47][>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>                              A85               A103   A110      C120 ]
> xgpu-th 4:[ 48][>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>                             A85               A103   A110      C120 ]