[ARM] tegra: Add cpufreq support
Implement cpufreq support for the Tegra SOC. DVFS is handled by the
core virtual cpu clock. The frequencies of the two cores are tied
together, the highest frequency requested by either core determines
the actual frequency.
Signed-off-by: Colin Cross <ccross@android.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3849887..fc6573d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -573,6 +573,7 @@
select HAVE_CLK
select COMMON_CLKDEV
select ARCH_HAS_BARRIERS if CACHE_L2X0
+ select ARCH_HAS_CPUFREQ
help
This enables support for NVIDIA Tegra based systems (Tegra APX,
Tegra 6xx and Tegra 2 series).