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From: Stephen Boyd <sboyd@codeaurora.org>
To: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Michael Turquette <mturquette@baylibre.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org
Subject: Re: [PATCH 5/6] clk: pxa: transfer CPU clock setting from pxa2xx-cpufreq
Date: Wed, 19 Oct 2016 13:51:28 -0700	[thread overview]
Message-ID: <20161019205128.GE8871@codeaurora.org> (raw)
In-Reply-To: <877f943xjk.fsf@belgarion.home>

On 10/19, Robert Jarzmik wrote:
> Stephen Boyd <sboyd@codeaurora.org> writes:
> 
> > On 10/18, Robert Jarzmik wrote:
> >> Robert Jarzmik <robert.jarzmik@free.fr> writes:
> >> Hi Michael and Stephen,
> >> 
> >> I'm planing on sending a v2 next week with minor corrections, mostly in the data
> >> tables (pxa25x_freqs and pxa27x_freqs), as testing prooved some values were wrong.
> >> 
> >> If you want me modify this serie, will you have time to review for next week or
> >> should I delay the v2 posting ?
> >> 
> >
> > No need to delay. clk patches look fine with a quick glance. It
> > would be really neat if we could make cpufreq-dt work without DT.
> > What's blocking that? OPP tables?
> 
> Heu I'm not the author of cpufreq-dt, so I'm not the best to answer.
> To answer the question "without DT", it depends if you mean "with ACPI" or "with
> platform_data" or something else.

I mean platform_data mostly. Do you use ACPI with the clk driver?

> 
> From what I've seen so far, the missing/blocking points are :
>  - the OPP points definition as you said

Hm.. I thought cpufreq-dt worked with OPP tables populated by
other code (i.e. platform code).

>  - probably same thing for the input power supply / regulator

Regulators should be optional I hope. Do you use regulators in
your design that has platform_data?

>  - the cooling parts probably
>  - and more generaly all the cpufreq-dt is built around device-tree
>  - last point, the name from KConfig, "Generic DT based cpufreq driver"
>    => that strongly suggest it's device-tree only
> 
> I'm deeply convinced that Viresh being one of the authors will shed more light
> on this.

Sure, thanks for the notes.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2016-10-19 20:51 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-10 20:09 [PATCH 0/6] Make pxa core clocks settable Robert Jarzmik
2016-10-10 20:09 ` [PATCH 1/6] clk: pxa: remove unused variables Robert Jarzmik
2016-10-10 20:09 ` [PATCH 2/6] clk: pxa: core pll is not affected by t bit Robert Jarzmik
2016-10-10 20:09 ` [PATCH 3/6] clk: pxa: b bit of clkcfg means fast bus Robert Jarzmik
2016-10-10 20:09 ` [PATCH 4/6] clk: pxa: export core clocks Robert Jarzmik
2016-10-10 20:09 ` [PATCH 5/6] clk: pxa: transfer CPU clock setting from pxa2xx-cpufreq Robert Jarzmik
2016-10-18  7:00   ` Robert Jarzmik
2016-10-18 23:48     ` Stephen Boyd
2016-10-19 20:15       ` Robert Jarzmik
2016-10-19 20:51         ` Stephen Boyd [this message]
2016-10-20  3:44           ` Viresh Kumar
2016-10-10 20:09 ` [PATCH 6/6] cpufreq: pxa: convert to clock API Robert Jarzmik
2016-10-12  2:36   ` Viresh Kumar
2016-10-12  6:22     ` Robert Jarzmik
2016-10-12  6:32       ` Viresh Kumar
2016-10-12  8:29         ` Robert Jarzmik
2016-10-12  8:40           ` Viresh Kumar
2016-10-12 19:12             ` Robert Jarzmik
2016-10-15 19:42               ` Robert Jarzmik

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