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authorMark Brown <broonie@linaro.org>2014-05-09 17:40:31 +0100
committerAlex Shi <alex.shi@linaro.org>2014-06-05 17:48:45 +0800
commit3b610bc09b68913dabf846c49adca5da1c241055 (patch)
tree8b095d2738fc21265a8e2846d5a357867898771d
parentf5bb879294d3ce6c620616c72c4c4bed9be2b537 (diff)
downloadlinux-linaro-stable-v3.14/topic/arm64-bl-cpufreq.tar.gz
cpufreq: Enable big.LITTLE cpufreq driver on arm64v3.14/topic/arm64-bl-cpufreq
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. Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> (cherry picked from commit 4920ab84979d8cd2eb7e3c4fefcc924efabf1cb2) Signed-off-by: Alex Shi <alex.shi@linaro.org>
-rw-r--r--drivers/cpufreq/Kconfig.arm3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 3129749..56f9cdb 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -4,7 +4,8 @@
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.