This series contains the CPUfreq driver for Broadcom SoCs that use "AVS Firmware" for voltage and frequency scaling. All voltage and frequency transitions are performed by the firmware and are therefore hidden from Linux.
The driver provides a standard CPUfreq interface to other kernel components and to userland on the one hand and communicates with the AVS co-processor on the other. Communication between the two processors is via shared mailbox registers and interrupts (ARM -> AVS to tell the firmware that there is a command to process and AVS -> ARM to tell the driver that a command finished executing). Markus Mayer (3): dt: cpufreq: brcm: New binding document for brcm-avs-cpufreq cpufreq: brcm-avs-cpufreq: AVS CPUfreq driver for Broadcom SoCs cpufreq: brcm-avs-cpufreq: add debugfs support .../bindings/cpufreq/brcm-avs-cpufreq.txt | 84 ++ MAINTAINERS | 8 + drivers/cpufreq/Kconfig.arm | 10 + drivers/cpufreq/Makefile | 1 + drivers/cpufreq/brcm-avs-cpufreq.c | 1000 ++++++++++++++++++++ 5 files changed, 1103 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/brcm-avs-cpufreq.txt create mode 100644 drivers/cpufreq/brcm-avs-cpufreq.c -- 2.7.4
