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authorMarkus Mayer <mmayer@broadcom.com>2016-10-27 14:05:35 -0700
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-11-01 06:07:37 +0100
commitde322e085995b9417582d6f72229dadb5c09d163 (patch)
tree1bb065d7a8010dbb8a5e8ab3bd99a303d0c20054 /drivers/cpufreq/Kconfig.arm
parentbb446b574e1a0c7fcaeb4ff59a3693e3194f57fe (diff)
downloadlinux-de322e085995b9417582d6f72229dadb5c09d163.tar.bz2
cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs
This driver supports voltage and frequency scaling on Broadcom STB SoCs using AVS firmware with DFS and DVFS support. Actual frequency or voltage scaling is done exclusively by the AVS firmware. The driver merely provides a standard CPUfreq interface to other kernel components and userland, and instructs the AVS firmware to perform frequency or voltage changes on its behalf. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/Kconfig.arm')
-rw-r--r--drivers/cpufreq/Kconfig.arm11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index fdbc630272b3..04f7862eacd3 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -12,6 +12,17 @@ config ARM_BIG_LITTLE_CPUFREQ
help
This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
+config ARM_BRCMSTB_AVS_CPUFREQ
+ tristate "Broadcom STB AVS CPUfreq driver"
+ depends on ARCH_BRCMSTB || COMPILE_TEST
+ default y
+ help
+ Some Broadcom STB SoCs use a co-processor running proprietary firmware
+ ("AVS") to handle voltage and frequency scaling. This driver provides
+ a standard CPUfreq interface to to the firmware.
+
+ Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
+
config ARM_DT_BL_CPUFREQ
tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
depends on ARM_BIG_LITTLE_CPUFREQ && OF