Re: [PATCH 106/228] cpufreq: integrator: don't initialize part ofpolicy that is set by core too

From: Russell King - ARM Linux
Date: Fri Sep 13 2013 - 12:11:20 EST


On Fri, Sep 13, 2013 at 06:30:52PM +0530, Viresh Kumar wrote:
> Many common initializations of struct policy are moved to core now and hence
> this driver doesn't need to do it. This patch removes such code.
>
> Most recent of those changes is to call ->get() in the core after calling
> ->init().
>
> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
> drivers/cpufreq/integrator-cpufreq.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
> index 8152a9b..babf3e4 100644
> --- a/drivers/cpufreq/integrator-cpufreq.c
> +++ b/drivers/cpufreq/integrator-cpufreq.c
> @@ -181,10 +181,9 @@ static int integrator_cpufreq_init(struct cpufreq_policy *policy)
> {
>
> /* set default policy and cpuinfo */
> - policy->cpuinfo.max_freq = 160000;
> - policy->cpuinfo.min_freq = 12000;
> + policy->max = policy->cpuinfo.max_freq = 160000;
> + policy->min = policy->cpuinfo.min_freq = 12000;
> policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */
> - policy->cur = policy->min = policy->max = integrator_get(policy->cpu);

This patch actually changes things - the description is misleading.
Please explain why this change - which results in different values for
policy->min and policy->max doesn't cause any functional difference.

Thanks.
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