[PATCH 3/3] cpufreq: Enable big.LITTLE cpufreq driver on arm64
From: viresh.kumar@linaro.org (Viresh Kumar)
Date: 2014-05-12 04:16:01
Also in:
linux-pm
On 9 May 2014 22:10, Mark Brown [off-list ref] wrote:
From: Mark Brown <redacted> There are arm64 big.LITTLE systems so enable the big.LITTLE cpufreq driver. While IKS is not available for these systems the driver is still useful since it manages clusters with shared frequencies which is the common case for these systems. Long term combining the cpufreq-cpu0 and big.LITTLE drivers may be a more sensible option but that is substantially more complex especially in the case of IKS.
Yeah, it was left separately for IKS specially :(
quoted hunk ↗ jump to hunk
Signed-off-by: Mark Brown <redacted> --- drivers/cpufreq/Kconfig.arm | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 6e05a1e18e52..6a7dd3e958d5 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm@@ -5,7 +5,8 @@ # big LITTLE core layer and glue drivers config ARM_BIG_LITTLE_CPUFREQ tristate "Generic ARM big LITTLE CPUfreq driver" - depends on ARM && BIG_LITTLE && ARM_CPU_TOPOLOGY && HAVE_CLK + depends on (BIG_LITTLE && ARM_CPU_TOPOLOGY) || (ARM64 && SMP) + depends on HAVE_CLK select PM_OPP help This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>