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Subject: Re: [PATCH v10 09/19] PM / devfreq: tegra30: Support interconnect and
 OPPs from device-tree
To:     Chanwoo Choi <cw00.choi@samsung.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Georgi Djakov <georgi.djakov@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Peter De Schrijver <pdeschrijver@nvidia.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Mikko Perttunen <cyndis@kapsi.fi>,
        Viresh Kumar <vireshk@kernel.org>,
        Peter Geis <pgwipeout@gmail.com>,
        Nicolas Chauvet <kwizart@gmail.com>,
        Krzysztof Kozlowski <krzk@kernel.org>
Cc:     linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
References: <20201123002723.28463-1-digetx@gmail.com>
 <CGME20201123003325epcas1p1b90c7b94507a3d58053949f5395c885a@epcas1p1.samsung.com>
 <20201123002723.28463-10-digetx@gmail.com>
 <f8f0b254-b5d6-7951-7576-846d8f58cb13@samsung.com>
From:   Dmitry Osipenko <digetx@gmail.com>
Message-ID: <cb9ba2fd-c450-b35d-9a72-846f33e0c427@gmail.com>
Date:   Mon, 23 Nov 2020 15:14:20 +0300
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23.11.2020 10:02, Chanwoo Choi пишет:
> Hi Dmitry,
> 
> On 11/23/20 9:27 AM, Dmitry Osipenko wrote:
>> This patch moves ACTMON driver away from generating OPP table by itself,
>> transitioning it to use the table which comes from device-tree. This
>> change breaks compatibility with older device-trees and brings support
>> for the interconnect framework to the driver. This is a mandatory change
>> which needs to be done in order to implement interconnect-based memory
>> DVFS, i.e. device-trees need to be updated. Now ACTMON issues a memory
>> bandwidth requests using dev_pm_opp_set_bw() instead of driving EMC clock
>> rate directly.
>>
>> Tested-by: Peter Geis <pgwipeout@gmail.com>
>> Tested-by: Nicolas Chauvet <kwizart@gmail.com>
>> Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
>> ---
>>  drivers/devfreq/tegra30-devfreq.c | 79 +++++++++++++++----------------
>>  1 file changed, 37 insertions(+), 42 deletions(-)
>>
> 
> (snip)

Hello Chanwoo,

> When the patches related to icc are merged, I'll merge patch9/10.
> Thanks for your work.
> 

Alright, thank you!