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>
---
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
