Re: [PATCH v3 1/2] cpufreq: tegra: Call tegra_cpufreq_init() specifically in machine code

bilhuang
2013-12-09T08:41:14Z

On 12/06/2013 06:54 AM, Stephen Warren wrote:
> On 12/05/2013 12:44 AM, Bill Huang wrote:
>> Move the call from module_init to Tegra machine codes so it won't be
>> called in a multi-platform kernel running on non-Tegra SoCs.
>
>> diff --git a/include/linux/tegra-soc.h b/include/linux/tegra-soc.h
>
> It might be better to create <linux/tegra-cpufreq.h> for the interface
> to the cpufreq driver; tegra-soc.h is for the interface to core Tegra
> code *from* other drivers.
Thanks, will do.
>
>> +#ifdef CONFIG_ARM_TEGRA_CPUFREQ
>> +int tegra_cpufreq_init(void);
>> +#else
>> +static inline int tegra_cpufreq_init(void)
>> +{
>> + return -EINVAL;
>> +}
>> +#endif
>
> Probably best to "return 0" from the !CONFIG_ARM_TEGRA_CPUFREQ case; the
> whole point is to isolate callers from having to care whether
> CONFIG_ARM_TEGRA_CPUFREQ is enabled, and making the function act like it
> worked OK is part of that isolation.
>
OK thanks.