linux-kernel - Re: [RESEND PATCH v2 0/3] Broadcom AVS CPUfreq driver

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Date:   Fri, 7 Oct 2016 16:22:09 -0700
From:   Markus Mayer <markus.mayer@...adcom.com>
To:     "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Broadcom Kernel List <bcm-kernel-feedback-list@...adcom.com>,
        Device Tree List <devicetree@...r.kernel.org>,
        Power Management List <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Markus Mayer <mmayer@...adcom.com>
Subject: Re: [RESEND PATCH v2 0/3] Broadcom AVS CPUfreq driver

My apologies. Please ignore this e-mail. Proper series coming up shortly.

Regards,
-Markus

On 7 October 2016 at 16:20, Markus Mayer <mmayer@...adcom.com> wrote:
> 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).
>
> lkml.org seems to be down for me. Here are patchwork links to the original
> series:
>
> https://patchwork.kernel.org/patch/9278119/
> https://patchwork.kernel.org/patch/9278121/
> https://patchwork.kernel.org/patch/9278127/
>
> Changes from v1:
>     - renamed binding document
>     - rewrote the introduction of the binding document
>     - created a new driver documentation file that contains Linux specific
>       information that was previously part of the binding document
>     - renamed the driver (and related config options) to include a reference
>       to "STB", since this implementation is primarily intended for use on
>       set-top boxes
>     - improved comments
>     - updated function __map_region()
>     - updated struct private_data
>     - added code to unmap memory regions in the error and exit paths
>     - added new sysfs property to report frequency directly from the
>       co-processor register
>
> Markus Mayer (3):
>   dt: cpufreq: brcm: New binding document for brcmstb-avs-cpufreq
>   cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs
>   cpufreq: brcmstb-avs-cpufreq: add debugfs support
>
>  Documentation/cpu-freq/brcmstb-avs-cpufreq.txt     |   27 +
>  .../bindings/cpufreq/brcm,stb-avs-cpu-freq.txt     |   77 ++
>  MAINTAINERS                                        |    9 +
>  drivers/cpufreq/Kconfig.arm                        |   10 +
>  drivers/cpufreq/Makefile                           |    1 +
>  drivers/cpufreq/brcmstb-avs-cpufreq.c              | 1026 ++++++++++++++++++++
>  6 files changed, 1150 insertions(+)
>  create mode 100644 Documentation/cpu-freq/brcmstb-avs-cpufreq.txt
>  create mode 100644 Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt
>  create mode 100644 drivers/cpufreq/brcmstb-avs-cpufreq.c
>
> --
> 2.7.4
>