Re: [PATCH v3 04/10] cpufreq: dt: invoke frequency-invariance setter function

[Viresh Kumar]

On 27-07-17, 20:33, Dietmar Eggemann wrote:
> Call the frequency-invariance setter function arch_set_freq_scale()
> if the new frequency has been successfully set which is indicated by
> dev_pm_opp_set_rate() returning 0.
> 
> Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
> Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
> ---
>  drivers/cpufreq/cpufreq-dt.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
> index fef3c2160691..cbac8a7dbc50 100644
> --- a/drivers/cpufreq/cpufreq-dt.c
> +++ b/drivers/cpufreq/cpufreq-dt.c
> @@ -43,9 +43,17 @@ static struct freq_attr *cpufreq_dt_attr[] = {
>  static int set_target(struct cpufreq_policy *policy, unsigned int index)
>  {
>  	struct private_data *priv = policy->driver_data;
> +	unsigned long freq = policy->freq_table[index].frequency;
> +	int ret;
> +
> +	ret = dev_pm_opp_set_rate(priv->cpu_dev, freq * 1000);
>  
> -	return dev_pm_opp_set_rate(priv->cpu_dev,
> -				   policy->freq_table[index].frequency * 1000);
> +	if (!ret) {
> +		arch_set_freq_scale(policy->related_cpus, freq,
> +				    policy->cpuinfo.max_freq);
> +	}
> +
> +	return ret;
>  }

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

-- 
viresh