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Date:   Sun, 1 Nov 2020 17:12:41 +0300
From:   Dmitry Osipenko <>
Cc:     Thierry Reding <>,
        Jonathan Hunter <>,
        Georgi Djakov <>,
        Rob Herring <>,
        Michael Turquette <>,
        Stephen Boyd <>,
        Peter De Schrijver <>,
        MyungJoo Ham <>,
        Kyungmin Park <>,
        Chanwoo Choi <>,
        Mikko Perttunen <>,
        Viresh Kumar <>,
        Peter Geis <>,
        Nicolas Chauvet <>,
        Krzysztof Kozlowski <>,,
        Linux PM list <>,
        linux-kernel <>,
        dri-devel <>,
        devicetree <>
Subject: Re: [PATCH v6 49/52] PM / devfreq: tegra20: Convert to EMC_STAT
 driver, support interconnect and device-tree

01.11.2020 16:31, Chanwoo Choi пишет:
> Hi Dmitry,
> This patch contains the three features as following:
> 1. Use interconnect interface for controlling the clock instead of
> controlling it direclty
> 2. Use EMC_STAT instead of IMC_STAT
> 3. Change polling_interval and upthreshold for more fast responsiveness
> I think you need to make the separate patches for each role.
> But, if it is difficult or not proper to split out 1,2 roles, you can
> make two patches for 1,2 and 3 roles.

Hello Chanwoo,

We will probably move the Tegra20 EMC_STAT devfreq driver into the
memory driver and remove the older IMC_STAT driver in v7, like it was
suggested by Thierry Reding. This will be a much less invasive code change.

> Also, if you want to get more responsiveness, you could use delayed timer
> instead of deferrable timer by editing the devfreq_dev_profile structure.

Thanks, I'll try the deferrable timer.

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