ACPI / CPPC: Add a CPUFreq driver for use with CPPC

[firefly-linux-kernel-4.4.55.git] / drivers / cpufreq / Kconfig.arm

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 5f498d9f1825038da8da98758a72701f58a7d08d..642fd49793b0a9284a83eddb3275ff627ca46763 100644 (file)
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -84,6 +84,7 @@ config ARM_KIRKWOOD_CPUFREQ
 config ARM_MT8173_CPUFREQ
        bool "Mediatek MT8173 CPUFreq support"
        depends on ARCH_MEDIATEK && REGULATOR
+       depends on !CPU_THERMAL || THERMAL=y
        select PM_OPP
        help
          This adds the CPUFreq driver support for Mediatek MT8173 SoC.
@@ -226,3 +227,20 @@ config ARM_PXA2xx_CPUFREQ
          This add the CPUFreq driver support for Intel PXA2xx SOCs.
 
          If in doubt, say N.
+
+config ACPI_CPPC_CPUFREQ
+       tristate "CPUFreq driver based on the ACPI CPPC spec"
+       depends on ACPI
+       select ACPI_CPPC_LIB
+       default n
+       help
+         This adds a CPUFreq driver which uses CPPC methods
+         as described in the ACPIv5.1 spec. CPPC stands for
+         Collaborative Processor Performance Controls. It
+         is based on an abstract continuous scale of CPU
+         performance values which allows the remote power
+         processor to flexibly optimize for power and
+         performance. CPPC relies on power management firmware
+         support for its operation.
+
+         If in doubt, say N.