On Wed 13 Jan 00:52 CST 2021, Shawn Guo wrote:
> At least on sdm850, the 2956800 khz is detected as a boost frequency in
> function qcom_cpufreq_hw_read_lut(). Let's enable boost support by
> calling cpufreq_enable_boost_support(), so that we can get the boost
> frequency by switching it on via 'boost' sysfs entry like below.
>
> $ echo 1 > /sys/devices/system/cpu/cpufreq/boost
>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
> drivers/cpufreq/qcom-cpufreq-hw.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
> index 315ee987d2d3..6eb88463a24e 100644
> --- a/drivers/cpufreq/qcom-cpufreq-hw.c
> +++ b/drivers/cpufreq/qcom-cpufreq-hw.c
> @@ -351,6 +351,12 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
>
> dev_pm_opp_of_register_em(cpu_dev, policy->cpus);
>
> + if (policy_has_boost_freq(policy)) {
> + ret = cpufreq_enable_boost_support();
> + if (ret)
> + dev_warn(cpu_dev, "failed to enable boost: %d\n", ret);
> + }
> +
> return 0;
> error:
> devm_iounmap(dev, base);
> --
> 2.17.1
>
