linux-kernel - Re: [PATCH 1/6] clk: Tegra: Add CPU0 clock driver

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Message-ID: <CAKohpomaCVLdJoMDhTcRkELvkE6UrtFjN4W7STf=MgYR8sxj4Q@mail.gmail.com>
Date:	Fri, 9 Aug 2013 08:49:18 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	mturquette@...aro.org, "Rafael J. Wysocki" <rjw@...k.pl>,
	Stephen Warren <swarren@...dotorg.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Nishanth Menon <nm@...com>
Cc:	swarren@...dia.com, linaro-kernel@...ts.linaro.org,
	patches@...aro.org, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/6] clk: Tegra: Add CPU0 clock driver

On 9 August 2013 00:20, Stephen Warren <swarren@...dotorg.org> wrote:
> I don't think so. I think it's reasonable to have a per-SoC cpufreq
> driver whose primary content is the parameterization data and/or custom
> hooks for a unified core cpufreq driver. The duplicate parts of each
> cpufreq driver can be moved into the core cpufreq driver, but the
> non-duplicate parts remain. That's how many other subsystems work (MMC,
> USB, ASoC spring to mind).

Guys in the --to list:

Please shout before its too late...

I can understand why Stephen is asking not to implement a virtual clock
driver for cpu as there is no clock corresponding to that.. We are just playing
with existing clocks there..

But I thought these clock APIs can be considered as hooks that we were
looking for and so shouldn't be a problem..

But yes, different people see things differently..

So, if I take Stephen's suggestions then I need to implement hooks into
cpufreq-cpu0 driver for taking freq-table/ setting clk rates, etc...

Let me know if anybody has a issue with that before we actually implement
that..

--
viresh
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