| Message ID | 20210119174557.227318-7-angelogioacchino.delregno@somainline.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | cpufreq-qcom-hw: Implement full OSM programming | expand |
On Tue 19 Jan 11:45 CST 2021, AngeloGioacchino Del Regno wrote: > In order to fine-tune the frequency scaling from various governors, > allow to set a maximum transition latency from OPPs, which may be > different depending on the SoC. > Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Regards, Bjorn > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> > --- > drivers/cpufreq/qcom-cpufreq-hw.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c > index a92959bb7b50..5f67da796f6c 100644 > --- a/drivers/cpufreq/qcom-cpufreq-hw.c > +++ b/drivers/cpufreq/qcom-cpufreq-hw.c > @@ -1401,6 +1401,7 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) > void __iomem *base; > struct qcom_cpufreq_data *data; > const char *fdom_resname; > + unsigned int transition_latency; > int cpu_count, index, ret; > > cpu_dev = get_cpu_device(policy->cpu); > @@ -1478,6 +1479,12 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) > goto error; > } > > + transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev); > + if (!transition_latency) > + transition_latency = CPUFREQ_ETERNAL; > + > + policy->cpuinfo.transition_latency = transition_latency; > + > dev_pm_opp_of_register_em(cpu_dev, policy->cpus); > > if (policy_has_boost_freq(policy)) { > -- > 2.30.0 >
diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index a92959bb7b50..5f67da796f6c 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -1401,6 +1401,7 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) void __iomem *base; struct qcom_cpufreq_data *data; const char *fdom_resname; + unsigned int transition_latency; int cpu_count, index, ret; cpu_dev = get_cpu_device(policy->cpu); @@ -1478,6 +1479,12 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) goto error; } + transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev); + if (!transition_latency) + transition_latency = CPUFREQ_ETERNAL; + + policy->cpuinfo.transition_latency = transition_latency; + dev_pm_opp_of_register_em(cpu_dev, policy->cpus); if (policy_has_boost_freq(policy)) {
In order to fine-tune the frequency scaling from various governors, allow to set a maximum transition latency from OPPs, which may be different depending on the SoC. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> --- drivers/cpufreq/qcom-cpufreq-hw.c | 7 +++++++ 1 file changed, 7 insertions(+)