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From: Matthew Longnecker <mlongnecker@nvidia.com>
To: linux-pm@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Subject: Re: [PATCH v2 0/2] Support to tune governor in run time
Date: Mon, 13 Jan 2014 11:01:36 -0800	[thread overview]
Message-ID: <52D43810.6030801@nvidia.com> (raw)
In-Reply-To: <52D4095C.205@ti.com>

On 1/13/2014 7:42 AM, Eduardo Valentin wrote:
>> This serie can support to turn governor for thermal zone in
>> run time.
>
> Can you please explain why this is needed? Are you facing troubles with
> current way to switch governors? If yes, can you please report them?
>

....

>> Adds thermal_update_governor() function, so the thermal platform
>> driver can use it to update governor.
>
> Here I cannot see why the platform driver would need to update a
> governor, instead of a zone. Platform drivers are not supposed to be
> aware of governors. For updating a zone we already have an API for that,
> please check documentation.
>

I think we have a miscommunication. The purpose of 
thermal_update_governor is to *switch* governors at runtime (from within 
the kernel).

Wei has used the term "update" in the sense of switch rather than 
"update" in the sense used by thermal_zone_device_update.

Eduardo, what is your recommended technique for setting the governor of 
a thermal zone device created via device tree?

thanks,
Matt


  reply	other threads:[~2014-01-13 19:01 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-13 11:17 [PATCH v2 0/2] Support to tune governor in run time Wei Ni
2014-01-13 11:17 ` [PATCH v2 1/2] thermal: add available policies attribut Wei Ni
     [not found]   ` <1389611863-7812-2-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-13 15:58     ` Eduardo Valentin
2014-01-15 11:26       ` Wei Ni
     [not found]         ` <52D67066.8010403-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-15 14:00           ` Eduardo Valentin
     [not found] ` <1389611863-7812-1-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-13 11:17   ` [PATCH v2 2/2] thermal: add interface to support tune governor in run-time Wei Ni
     [not found]     ` <1389611863-7812-3-git-send-email-wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-17  8:22       ` Zhang Rui
2014-01-17  9:32         ` Wei Ni
     [not found]           ` <52D8F8BD.1080700-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-20  1:41             ` Zhang Rui
2014-01-20  8:47               ` Wei Ni
2014-01-17 16:01         ` Eduardo Valentin
2014-01-13 15:42   ` [PATCH v2 0/2] Support to tune governor in run time Eduardo Valentin
2014-01-13 19:01     ` Matthew Longnecker [this message]
2014-01-13 21:33       ` Eduardo Valentin
2014-01-14  4:17         ` Wei Ni
2014-01-14 17:44           ` Eduardo Valentin
     [not found]             ` <52D57762.8070609-l0cyMroinI0@public.gmane.org>
2014-01-15 11:35               ` Wei Ni
     [not found]                 ` <52D67296.7050107-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-15 14:06                   ` Eduardo Valentin
     [not found]           ` <52D4BA76.4040003-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-01-14 17:50             ` Eduardo Valentin
     [not found]               ` <52D57901.5050300-l0cyMroinI0@public.gmane.org>
2014-01-15 11:43                 ` Wei Ni
2014-01-15 14:04                   ` Eduardo Valentin

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