linux-kernel - Re: [PATCH v2 3/4] cpufreq: tegra: Re-model Tegra cpufreq driver

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Date:	Fri, 13 Sep 2013 16:26:14 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Bill Huang <bilhuang@...dia.com>
CC:	rjw@...k.pl, viresh.kumar@...aro.org, linux@....linux.org.uk,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH v2 3/4] cpufreq: tegra: Re-model Tegra cpufreq driver

On 09/12/2013 05:24 AM, Bill Huang wrote:
> Re-model Tegra cpufreq driver to support all Tegra series of SoCs.
> 
> * Make tegra-cpufreq.c a generic Tegra cpufreq driver.
> * Move Tegra20 specific codes into tegra20-cpufreq.c.
> * Bind Tegra cpufreq dirver with a fake device so defer probe would work
>   when we're going to get regulator in the driver to support voltage
>   scaling (DVFS).

> diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm

> @@ -232,6 +232,12 @@ config ARM_TEGRA_CPUFREQ
>  	bool "TEGRA CPUFreq support"
>  	depends on ARCH_TEGRA
>  	select CPU_FREQ_TABLE
> +
> +config ARM_TEGRA20_CPUFREQ
> +	bool "NVIDIA TEGRA20"
> +	depends on ARM_TEGRA_CPUFREQ && ARCH_TEGRA_2x_SOC
>  	default y
>  	help
> -	  This adds the CPUFreq driver support for TEGRA SOCs.
> +	  This adds the CPUFreq driver for NVIDIA TEGRA20 SoC.
> +
> +	  If in doubt, say N.

This patch removes the following from "config ARM_TEGRA_CPUFREQ":

	default y
	help
	  This adds the CPUFreq driver support for TEGRA SOCs.

I think that option should be left unchanged, such that this patch
*just* adds the new option without changing the existing one. If you do
that, then you can completely drop patch 4/4.

Other than that, this series looks fine.
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