linux-kernel - Re: [PATCH v2 1/3] cpufreq: Add Tegra186 cpufreq driver

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Message-ID: <ce29c6b7-2942-0054-d014-7b262da6fb6d@kapsi.fi>
Date:   Tue, 11 Apr 2017 09:37:28 +0300
From:   Mikko Perttunen <cyndis@...si.fi>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Mikko Perttunen <mperttunen@...dia.com>
Cc:     rjw@...ysocki.net, thierry.reding@...il.com, jonathanh@...dia.com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: Re: [PATCH v2 1/3] cpufreq: Add Tegra186 cpufreq driver

On 04/11/2017 09:35 AM, Viresh Kumar wrote:
> On 04-04-17, 16:43, Mikko Perttunen wrote:
>> Add a new cpufreq driver for Tegra186 (and likely later).
>> The CPUs are organized into two clusters, Denver and A57,
>> with two and four cores respectively. CPU frequency can be
>> adjusted by writing the desired rate divisor and a voltage
>> hint to a special per-core register.
>>
>> The frequency of each core can be set individually; however,
>> this is just a hint as all CPUs in a cluster will run at
>> the maximum rate of non-idle CPUs in the cluster.
>>
>> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
>> ---
>> v2:
>> - Many cosmetic / restructuring changes
>> - Only one aperture read from DT now, with a new
>>   structure containing the offset among other details
>>   per cluster.
>> - Don't enable the driver by default.
>>
>>  drivers/cpufreq/Kconfig.arm        |   6 +
>>  drivers/cpufreq/Makefile           |   1 +
>>  drivers/cpufreq/tegra186-cpufreq.c | 275 +++++++++++++++++++++++++++++++++++++
>>  3 files changed, 282 insertions(+)
>>  create mode 100644 drivers/cpufreq/tegra186-cpufreq.c
>
> For all three patches.
>
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
>

Thanks!

Mikko