linux-kernel - Re: [PATCH 2/2] cpufreq: conservative: set requested_freq to policy max when it is over policy max

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Message-ID: <CAKohponWfm5etQPwBGUFhobkuE-MJdLauab7XM1mG+gEmnx0dA@mail.gmail.com>
Date:	Fri, 8 Nov 2013 10:57:37 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Xiaoguang Chen <chenxg@...vell.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Xiaoguang Chen <chenxg.marvell@...il.com>
Subject: Re: [PATCH 2/2] cpufreq: conservative: set requested_freq to policy
 max when it is over policy max

On 8 November 2013 10:53, Xiaoguang Chen <chenxg@...vell.com> wrote:
> When requested_freq is over policy->max, set it to policy->max.
> This can help to speed up decreasing frequency.
>
> Signed-off-by: Xiaoguang Chen <chenxg@...vell.com>
> ---
>  drivers/cpufreq/cpufreq_conservative.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
> index 218460f..25a70d0 100644
> --- a/drivers/cpufreq/cpufreq_conservative.c
> +++ b/drivers/cpufreq/cpufreq_conservative.c
> @@ -68,6 +68,9 @@ static void cs_check_cpu(int cpu, unsigned int load)
>
>                 dbs_info->requested_freq += get_freq_target(cs_tuners, policy);
>
> +               if (dbs_info->requested_freq > policy->max)
> +                       dbs_info->requested_freq = policy->max;
> +
>                 __cpufreq_driver_target(policy, dbs_info->requested_freq,
>                         CPUFREQ_RELATION_H);
>                 return;

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
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