linux-kernel - Re: [PATCH v5 1/1] cpufreq: tegra: Re-model Tegra20 cpufreq driver

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Date:	Thu, 19 Dec 2013 12:33:35 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Bill Huang <bilhuang@...dia.com>, rjw@...ysocki.net,
	viresh.kumar@...aro.org, thierry.reding@...il.com
CC:	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH v5 1/1] cpufreq: tegra: Re-model Tegra20 cpufreq driver

On 12/19/2013 04:18 AM, Bill Huang wrote:
> Re-model Tegra20 cpufreq driver as below.
> 
> * Rename tegra-cpufreq.c to tegra20-cpufreq.c since this file supports
>   only Tegra20.
> * Add probe function so defer probe can be used when we're going to
>   support DVFS.
> * Create a fake cpufreq platform device with its name being
>   "${root_compatible}-cpufreq" so SoC cpufreq driver can bind to it
>   accordingly.

Tested-by: Stephen Warren <swarren@...dia.com>
Acked-by: Stephen Warren <swarren@...dia.com>

It should be fine to merge the arch/arm/mach-tegra/ changes in this
patch through the cpufreq tree, since I don't think they'll conflict at
all with anything in other trees this kernel cycle.

> diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra20-cpufreq.c

> -#define NUM_CPUS	2
> +#define MAX_CPUS	2

Nit: Given this driver is explicitly for a 2-CPU SoC, I don't think
there's any need to s/NUM/MAX/ here. But I don't care that much.

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