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 19:30:36 +0530
From:	Anand Moon <linux.amoon@...il.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.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

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.

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 ]

Best Regards
-Anand Moon