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Commit 17ec3fc5 authored by Danny Lin's avatar Danny Lin Committed by Akshay Kakatkar
Browse files

cpufreq: Allow configuring default minimum frequencies in Kconfig 



This adds config options that set the default minimum frequency for the
little, big, and prime CPU clusters.

Signed-off-by: default avatarDanny Lin <danny@kdrag0n.dev>
parent 10c99ed2

drivers/cpufreq/Kconfig

+27 −0
Original line number Diff line number Diff line
@@ -220,6 +220,33 @@ config CPU_FREQ_GOV_SCHEDUTIL 


	  If in doubt, say N.



config CPU_FREQ_DEFAULT_LITTLE_MIN

	int "Default minimum frequency for the little cluster"

	default 0

	help

	  This sets the default minimum frequency (in kHz) for the little CPU

	  cluster.



	  If in doubt, say 0 to use the hardware's minimum frequency.



config CPU_FREQ_DEFAULT_BIG_MIN

	int "Default minimum frequency for the big cluster"

	default 0

	help

	  This sets the default minimum frequency (in kHz) for the big CPU

	  cluster.



	  If in doubt, say 0 to use the hardware's minimum frequency.



config CPU_FREQ_DEFAULT_PRIME_MIN

	int "Default minimum frequency for the prime cluster"

	default 0

	help

	  This sets the default minimum frequency (in kHz) for the prime CPU

	  cluster.



	  If in doubt, say 0 to use the hardware's minimum frequency.



comment "CPU frequency scaling drivers"



config CPUFREQ_DT

drivers/cpufreq/freq_table.c

+13 −0
Original line number Diff line number Diff line
@@ -58,6 +58,19 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy, 
	policy->min = policy->cpuinfo.min_freq = min_freq;

	policy->max = policy->cpuinfo.max_freq = max_freq;



#if CONFIG_CPU_FREQ_DEFAULT_LITTLE_MIN

	if (cpumask_test_cpu(policy->cpu, cpu_lp_mask))

		policy->min = CONFIG_CPU_FREQ_DEFAULT_LITTLE_MIN;

#endif

#if CONFIG_CPU_FREQ_DEFAULT_BIG_MIN

	if (cpumask_test_cpu(policy->cpu, cpu_perf_mask))

		policy->min = CONFIG_CPU_FREQ_DEFAULT_BIG_MIN;

#endif

#if CONFIG_CPU_FREQ_DEFAULT_PRIME_MIN

	if (cpumask_test_cpu(policy->cpu, cpu_perfp_mask))

		policy->min = CONFIG_CPU_FREQ_DEFAULT_PRIME_MIN;

#endif



	if (max_freq > cpuinfo_max_freq_cached)

		cpuinfo_max_freq_cached = max_freq;