linux-kernel - Re: [PATCH 7/8] cpufreq: st: Provide runtime initialised driver for ST's platforms

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Date:	Tue, 23 Jun 2015 10:00:11 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Lee Jones <lee.jones@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	kernel@...inux.com, rjw@...ysocki.net, viresh.kumar@...aro.org,
	linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
	ajitpal.singh@...com
Subject: Re: [PATCH 7/8] cpufreq: st: Provide runtime initialised driver for
 ST's platforms

On Mon, 2015-06-22 at 16:43 +0100, Lee Jones wrote:
> --- a/drivers/cpufreq/Kconfig.arm
> +++ b/drivers/cpufreq/Kconfig.arm
 
> +config ARM_ST_CPUFREQ
> +> 	> bool "ST CPUFreq support"
> +> 	> depends on SOC_STIH407
> +> 	> help
> +> 	>   OPP list for cpufreq-dt driver can be provided through DT or can be
> +> 	>   created at runtime.  Select this if you want create OPP list at runtime.


> --- a/drivers/cpufreq/Makefile
> +++ b/drivers/cpufreq/Makefile

> +obj-$(CONFIG_ARM_ST_CPUFREQ)		+= st-cpufreq.o

> --- /dev/null
> +++ b/drivers/cpufreq/st-cpufreq.c

> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.

> +#include <linux/module.h>

> +MODULE_DEVICE_TABLE(of, sti_cpufreq_of_match);
> 
> +module_platform_driver(sti_cpufreq);

> 
> +MODULE_AUTHOR("Ajitpal Singh <ajitpal.singh@...com>");
> +MODULE_DESCRIPTION("Creates an OPP list for cpufreq-cpu0 at runtime");
> +MODULE_LICENSE("GPL v2");


(There's a mismatch between the license used in the comment at the top
of this file and the ident used in the MODULE_LICENSE() macro. See
include/linux/module.h.)

st-cpufreq.o can only be built-in. But the code contains of few lines
that are only useful if the code can be modular. Was ARM_ST_CPUFREQ
perhaps meant to be tristate?

Thanks,


Paul Bolle
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