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cpufreq: st: Provide runtime initialised driver for ST's platforms

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The bootloader is charged with the responsibility to provide platform
specific Dynamic Voltage and Frequency Scaling (DVFS) information via
Device Tree.  This driver takes the supplied configuration and
registers it with the new generic OPP framework, to then be used with
CPUFreq.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lee Jones
2015-12-10 09:42:16 +00:00
committed by Rafael J. Wysocki
parent 68435c0d4a
commit ab0ea257fc
3 changed files with 305 additions and 0 deletions
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10
drivers/cpufreq/Kconfig.arm
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@@ -219,6 +219,16 @@ config ARM_SPEAR_CPUFREQ
help
This adds the CPUFreq driver support for SPEAr SOCs.
config ARM_STI_CPUFREQ
tristate "STi CPUFreq support"
depends on SOC_STIH407
help
This driver uses the generic OPP framework to match the running
platform with a predefined set of suitable values. If not provided
we will fall-back so safe-values contained in Device Tree. Enable
this config option if you wish to add CPUFreq support for STi based
SoCs.
config ARM_TEGRA20_CPUFREQ
bool "Tegra20 CPUFreq support"
depends on ARCH_TEGRA