linux-kernel - Re: [PATCH v3 00/11] Broadcom Stingray SOC Initial Support

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Date:   Fri, 19 May 2017 11:38:35 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Anup Patel <anup.patel@...adcom.com>,
        Olof Johansson <olof@...om.net>,
        Michael Turquette <mturquette@...libre.com>,
        sboyd@...eaurora.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Jon Mason <jonmason@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Oza Pawandeep <oza.oza@...adcom.com>,
        Srinath Mannam <srinath.mannam@...adcom.com>,
        Pramod Kumar <pramod.kumar@...adcom.com>,
        Sandeep Tripathy <sandeep.tripathy@...adcom.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Broadcom Kernel Feedback List 
        <bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH v3 00/11] Broadcom Stingray SOC Initial Support

On 05/16/2017 09:24 PM, Anup Patel wrote:
> On Wed, May 17, 2017 at 12:23 AM, Olof Johansson <olof@...om.net> wrote:
>> Hi,
>>
>>
>>
>> On Tue, May 16, 2017 at 4:30 AM, Anup Patel <anup.patel@...adcom.com> wrote:
>>> This patchset adds initial support of Broadcom Stingray SOC
>>> by reusing existing Broadcom iProc device drivers.
>>>
>>> Most of the patches in this patchset are DT patches except
>>> the Stingray clock tree support which just one patch.
>>>
>>> This patchset is based on Linux-4.12-rc1 and it is also available
>>> at stingray-v3 branch of https://github.com/Broadcom/arm64-linux.git
>>>
>>> Changes since v2:
>>>  - Remove default bootargs from chosen DT node
>>>  - Remove "linux" prefix from stdout DT attribute of chosen DT node
>>>  - Remove use of GIC_CPU_MASK_xxx() for PPIs
>>>
>>> Changes since v1:
>>>  - Rebased patches for Linux-4.12-rc1
>>>  - Removed unwanted /memreserve/ from bcm958742-base.dtsi
>>>  - Use ranges DT property to clear view of memory-layout
>>>  - Make bcm-sr.h part of clock DT bindings patch
>>>
>>> Anup Patel (3):
>>>   dt-bindings: bcm: Add Broadcom Stingray bindings document
>>>   arm64: dts: Initial DTS files for Broadcom Stingray SOC
>>>   arm64: dts: Add PL022, PL330 and SP805 DT nodes for Stingray
>>>
>>> Oza Pawandeep (1):
>>>   arm64: dts: Add I2C DT nodes for Stingray SoC
>>>
>>> Pramod Kumar (3):
>>>   arm64: dts: Add NAND DT nodes for Stingray SOC
>>>   arm64: dts: Add pinctrl DT nodes for Stingray SOC
>>>   arm64: dts: Add GPIO DT nodes for Stingray SOC
>>>
>>> Sandeep Tripathy (3):
>>>   dt-bindings: clk: Extend binding doc for Stingray SOC
>>>   clk: bcm: Add clocks for Stingray SOC
>>>   arm64: dts: Add clock DT nodes for Stingray SOC
>>>
>>> Srinath Mannam (1):
>>>   arm64: dts: Add PWM and SDHCI DT nodes for Stingray SOC
>>>
>>>  .../devicetree/bindings/arm/bcm/brcm,stingray.txt  |  12 +
>>>  .../bindings/clock/brcm,iproc-clocks.txt           |  76 ++++
>>>  arch/arm64/boot/dts/broadcom/Makefile              |   1 +
>>>  arch/arm64/boot/dts/broadcom/stingray/Makefile     |   6 +
>>>  .../boot/dts/broadcom/stingray/bcm958742-base.dtsi | 131 ++++++
>>>  .../boot/dts/broadcom/stingray/bcm958742k.dts      |  78 ++++
>>>  .../boot/dts/broadcom/stingray/bcm958742t.dts      |  40 ++
>>>  .../boot/dts/broadcom/stingray/stingray-clock.dtsi | 170 ++++++++
>>>  .../dts/broadcom/stingray/stingray-pinctrl.dtsi    | 345 ++++++++++++++++
>>>  .../arm64/boot/dts/broadcom/stingray/stingray.dtsi | 460 +++++++++++++++++++++
>>>  drivers/clk/bcm/Kconfig                            |   8 +
>>>  drivers/clk/bcm/Makefile                           |   1 +
>>>  drivers/clk/bcm/clk-sr.c                           | 300 ++++++++++++++
>>>  include/dt-bindings/clock/bcm-sr.h                 | 101 +++++
>>>  .../dt-bindings/pinctrl/brcm,pinctrl-stingray.h    |  68 +++
>>>  15 files changed, 1797 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,stingray.txt
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/Makefile
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/bcm958742-base.dtsi
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/bcm958742k.dts
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/bcm958742t.dts
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/stingray-clock.dtsi
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/stingray-pinctrl.dtsi
>>>  create mode 100644 arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
>>>  create mode 100644 drivers/clk/bcm/clk-sr.c
>>>  create mode 100644 include/dt-bindings/clock/bcm-sr.h
>>>  create mode 100644 include/dt-bindings/pinctrl/brcm,pinctrl-stingray.h
>>
>> Grouping as one patchset for review is fine, but when you submit this
>> for merge you need to split it up:
>>
>> - Documentation/devicetree can go with the driver pieces or with the
>> DT changes, your choice
>> - DTS/DTSI changes should go through the Broadcom maintainers to arm-soc
>> - clk changes should go to clk maintainers.
> 
> Only PATCH3 needs to go through clk maintainers rest all patches
> are DT bindings document and DTS changes which can go through
> Broadcom tree. Right ??

Patch 2 and 3 should go through the clock maintainers, and I can take
the remaining patches through the Broadcom ARM/ARM64 SoC pull requests,
no problem.

Unless there are specific changes requested which warrant a v4, I can
coordinate with Stephen and Mike to make sure that they take the
appropriate patches.

> 
>>
>> Also, there's usually no need to split up a DT introduction and having
>> separate pieces for NAND/pinctrl/GPIO/etc: They can all go in the main
>> DT submission patch.
> 
> Yes, we have already squashed DTS patches from same author into
> one DTS patch except NAND, PINCTRL and GPIO patches.
> 
> The NAND, PINCTRL, and GPIO patches were not squashed into
> one patch for easy review but since you suggest I will squash these
> three DTS patches into one DTS patch.
> 
> Regards,
> Anup
> 


-- 
Florian