linux-kernel - Re: [PATCH v1] cpufreq: mediatek-hw: Add support for Mediatek cpufreq HW driver

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Date:   Fri, 23 Oct 2020 14:57:20 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Hector Yuan <hector.yuan@...iatek.com>
Cc:     linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Maxime Ripard <mripard@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Amit Kucheria <amit.kucheria@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Dave Gerlach <d-gerlach@...com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        wsd_upstream@...iatek.com
Subject: Re: [PATCH v1] cpufreq: mediatek-hw: Add support for Mediatek
 cpufreq HW driver

On 23-10-20, 17:08, Hector Yuan wrote:
> On Fri, 2020-10-23 at 13:58 +0530, Viresh Kumar wrote:
> > On 23-10-20, 16:24, Hector Yuan wrote:
> > > This patchset includes 6 patches and depends on the MT6779 DTS patch[1] submitted by Hanks Chen.
> > > The first 3 patches are for CPUFREQ HW driver and device tree binding, which are already sent before separately [2][3]. For binding part, I add a new patch to add property in cpu schema.
> > > Besides, we add three more patches including EM power table, SVS CPU initialize, and cooling device.
> > 
> > And even after so many versions of these you chose to name this V1. It
> > is very difficult for reviewers to find time to review your stuff, and
> > they expect some sort of summary from you on what exactly changed from
> > last version and you also need to name the current version currently.
> > 
> > This should have been V8 and you should have added a "V7->V8 diff:"
> > section here, naming all the changes you did. Please send that as
> > reply to this email, so I can see what really changed.
> > 
> Hi, Viresh
> 
> Sorry for your inconvenience.
> #1~#3 is for cpufreq driver we have reviewed and the bindings which
> separate freq domain to CPU schema.There is no change for the driver
> itself.
>   1. cpufreq: mediatek-hw: Add support for CPUFREQ HW
>   2. dt-bindings: arm: cpus: Document 'mtk,freq-domain' property
>   3. dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW
> 
> #4~#6 is for other CPU features, i.e. SVS [1]
>   4. cpufreq: mediatek-hw: register EM power table
>   5. cpufreq: mediatek-hw: Add SVS CPU initialization
>   6. cpufreq: mediatek-hw: Add cooling dev flag
> 
> I supposed that it could be more clean to separate #4~#6 in another
> patchset.May I know is it okay to you? Or I should merge all of changes
> into v8 like you mentioned? Thank you.

Merge them all together and explain any special features (like SVS) in
the commit log. It will also help in future when people want to
understand your driver. Explain whatever is worth explaining there and
is not straight forward.

Thanks for the details.

-- 
viresh