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Re: [PATCH v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock and CPUFreq support

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  Re: [PATCH v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock and  CPUFreq support Liviu Dudau <Liviu.Dudau@arm.com> - 2015-08-03 12:20 +0200
    Re: [PATCH v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock  and CPUFreq support Sudeep Holla <sudeep.holla@arm.com> - 2015-08-03 12:50 +0200

#1198707 — Re: [PATCH v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock and CPUFreq support

On Fri, Jul 31, 2015 at 06:43:03PM +0100, Sudeep Holla wrote:
> Hi ARM-SoC guys,
> 
> It has been on the list for a while and have got all the necessary ACKs.
> Can you please pull this series for v4.3 ?
> 
> Regards,
> Sudeep
> 
> This patch series adds support for:
>   1. SCPI(System Control and Power Interface) mailbox protocol driver.
>      It uses ARM MHU mailbox controller driver on Juno but can work with
>      any mailbox controllers using standard mailbox APIs
>   2. Add support for clocks provided by SCP firmware through the SCPI
>      interface
>   3. Using the existing arm_big_little cpufreq driver and the newly
>      added SCPI clock driver, it also adds support for CPU DVFS on
>      ARM64 JUNO development platforms.

Hi Sudeep,

Is there a branch where I can pull this series from?

Best regards,
Liviu

> 
> The SCPI protocol document is available @[1],[2]
> 
> Changes v5->v6:
> 	- Minor review comments on clock bindings and clock driver
> 	- Added all the ACKs necessary
> 
> Changes v4->v5:
> 	- Updated the SCPI clock bindings to correct the clock specifier
> 	  usage and other minor updates as per review feedback
> 	- Updated clock driver to use SCPI specifier clock specifier
> 	  decode function
> 	- Minor reshuffling in Juno DTS files, no functionality change
> 
> Changes v3->v4:
> 	- Updated the SCPI binding based on MarkR's feedback
> 	- Updated SCPI clock driver to incorporate Stephen Boyd's review
> 	  comments + used clk_set_rate_range to limit the clock range
> 	- Since no major changes are expected in SCPI DT, updated the
> 	  Juno DTS to support SCPI and dependent device nodes.
> 
> Changes v2->v3:
> 	- Minor fix in SCPI driver and added Tixy's reviewed-by tag
> 	- Updated scpi clock driver to incorporate all the comments from
> 	  Stephen
> 	- Added Viresh's ack
> 
> Changes v1->v2:
> 	- Updated the token handling in scpi driver as per Tixy's
> 	  suggestion along with other review comments
> 	- Removed multiple drivers in scpi clock as Lorenzo suggested
> 	- Added free_opp_table in scpi-cpufreq as Viresh suggested
> 	- Separated the DT binding document
> 	- Moved SCPI protocol driver to drivers/firmware
> 
> [1] http://community.arm.com/servlet/JiveServlet/download/8401-45-18326/DUI0922B_scp_message_interface.pdf
> [2] https://wiki.linaro.org/ARM/Juno?action=AttachFile&do=get&target=DUI0922B_scp_message_interface.pdf
> v1: https://lkml.org/lkml/2015/4/27/232
> v2: https://lkml.org/lkml/2015/5/14/470
> v3: https://lkml.org/lkml/2015/5/27/220
> v4: https://lkml.org/lkml/2015/6/8/178
> v5: https://lkml.org/lkml/2015/7/23/270
> 
> Cc: devicetree@vger.kernel.org
> Cc: linux-clk@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> 
> Sudeep Holla (8):
>   Documentation: add DT binding for ARM System Control and Power
>     Interface(SCPI) protocol
>   firmware: add support for ARM System Control and Power Interface(SCPI)
>     protocol
>   clk: add support for clocks provided by SCP(System Control Processor)
>   clk: scpi: add support for cpufreq virtual device
>   cpufreq: arm_big_little: add SCPI interface driver
>   arm64: dts: add SRAM, MHU mailbox and SCPI support on Juno
>   arm64: dts: add CPU topology on Juno
>   arm64: dts: add clock support for all the cpus
> 
>  Documentation/devicetree/bindings/arm/arm,scpi.txt | 150 +++++
>  MAINTAINERS                                        |  10 +
>  arch/arm64/boot/dts/arm/juno-base.dtsi             |  54 ++
>  arch/arm64/boot/dts/arm/juno-r1.dts                |  32 +
>  arch/arm64/boot/dts/arm/juno.dts                   |  32 +
>  drivers/clk/Kconfig                                |  10 +
>  drivers/clk/Makefile                               |   1 +
>  drivers/clk/clk-scpi.c                             | 325 ++++++++++
>  drivers/cpufreq/Kconfig.arm                        |   9 +
>  drivers/cpufreq/Makefile                           |   1 +
>  drivers/cpufreq/scpi-cpufreq.c                     | 124 ++++
>  drivers/firmware/Kconfig                           |  19 +
>  drivers/firmware/Makefile                          |   1 +
>  drivers/firmware/arm_scpi.c                        | 711 +++++++++++++++++++++
>  include/linux/scpi_protocol.h                      |  61 ++
>  15 files changed, 1540 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/arm,scpi.txt
>  create mode 100644 drivers/clk/clk-scpi.c
>  create mode 100644 drivers/cpufreq/scpi-cpufreq.c
>  create mode 100644 drivers/firmware/arm_scpi.c
>  create mode 100644 include/linux/scpi_protocol.h
> 
> -- 
> 1.9.1
> 

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯

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#1198730 — Re: [PATCH v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock and CPUFreq support

On 03/08/15 11:18, Liviu Dudau wrote:
> On Fri, Jul 31, 2015 at 06:43:03PM +0100, Sudeep Holla wrote:
>> Hi ARM-SoC guys,
>>
>> It has been on the list for a while and have got all the necessary ACKs.
>> Can you please pull this series for v4.3 ?
>>
>> Regards,
>> Sudeep
>>
>> This patch series adds support for:
>>    1. SCPI(System Control and Power Interface) mailbox protocol driver.
>>       It uses ARM MHU mailbox controller driver on Juno but can work with
>>       any mailbox controllers using standard mailbox APIs
>>    2. Add support for clocks provided by SCP firmware through the SCPI
>>       interface
>>    3. Using the existing arm_big_little cpufreq driver and the newly
>>       added SCPI clock driver, it also adds support for CPU DVFS on
>>       ARM64 JUNO development platforms.
>
> Hi Sudeep,
>
> Is there a branch where I can pull this series from?
>

Yes, you can pull from
git://linux-arm.org/linux-skn.git juno_dvfs

Regards,
Sudeep
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