linux-kernel - Re: [PATCH 1/2] cpufreq: mediatek: Add MT8173 cpufreq driver

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Date:	Wed, 22 Apr 2015 11:14:50 +0800
From:	Pi-Cheng Chen <pi-cheng.chen@...aro.org>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	Viresh Kumar <viresh.kumar@...aro.org>,
	Mike Turquette <mturquette@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	"Joe.C" <yingjoe.chen@...iatek.com>,
	Eddie Huang <eddie.huang@...iatek.com>,
	Howard Chen <ibanezchen@...il.com>,
	Chen Fan <fan.chen@...iatek.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linaro Kernel Mailman List <linaro-kernel@...ts.linaro.org>,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 1/2] cpufreq: mediatek: Add MT8173 cpufreq driver

On Tue, Apr 21, 2015 at 2:28 AM, Paul Bolle <pebolle@...cali.nl> wrote:
> On Mon, 2015-04-20 at 17:27 +0800, pi-cheng.chen wrote:
>> --- a/drivers/cpufreq/Kconfig.arm
>> +++ b/drivers/cpufreq/Kconfig.arm
>
>> +config ARM_MT8173_CPUFREQ
>> +     bool "Mediatek MT8173 CPUFreq support"
>> +     depends on ARCH_MEDIATEK && REGULATOR
>> +     help
>> +       This adds the CPUFreq driver support for Mediatek MT8173 SoC.
>
>> --- a/drivers/cpufreq/Makefile
>> +++ b/drivers/cpufreq/Makefile
>
>> +obj-$(CONFIG_ARM_MT8173_CPUFREQ)     += mt8173-cpufreq.o
>
> ARM_MT8173_CPUFREQ is a bool symbol, so mt8173-cpufreq.o will never be
> part of a module.
>
> (If that's incorrect you can stop reading here.)
>
>> --- /dev/null
>> +++ b/drivers/cpufreq/mt8173-cpufreq.c
>
>> +#include <linux/module.h>
>
> I guess this include is not needed. And, for what it's worth,
>     make ARCH=arm CROSS_COMPILE=arm-linux-gnu- drivers/cpufreq/mt8173-cpufreq.o
>
> compiles silently even if it's dropped.
>
>> +module_init(mt8173_cpufreq_driver_init);
>
> According to include/linux/init.h, for built-in only code, this is
> equivalent to device_initcall([...]). And two runs of
>     make ARCH=arm CROSS_COMPILE=arm-linux-gnu- drivers/cpufreq/mt8173-cpufreq.i
>
> confirm that.

Hi Paul,

Thanks for your reviewing.
The <linux/module.h> is not needed here.
I'll remove it.

Best Regards,
Pi-Cheng

>
> Thanks,
>
>
> Paul Bolle
>
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