Message-ID: <66d64241-d2bc-d25a-4204-56f10521ad6c@conchuod.ie>
Date:   Fri, 11 Mar 2022 19:56:59 +0000
From:   Conor Dooley <mail@...chuod.ie>
To:     Zong Li <zong.li@...ive.com>, Palmer Dabbelt <palmer@...belt.com>
Cc:     Stephen Boyd <sboyd@...nel.org>,
        Conor Dooley <Conor.Dooley@...rochip.com>,
        Lewis.Hanly@...rochip.com, Daire.McNamara@...rochip.com,
        Ivan.Griffin@...rochip.com, atishp@...osinc.com,
        linus.walleij@...aro.org, brgl@...ev.pl,
        Rob Herring <robh+dt@...nel.org>, jassisinghbrar@...il.com,
        thierry.reding@...il.com, u.kleine-koenig@...gutronix.de,
        Lee Jones <lee.jones@...aro.org>, a.zummo@...ertech.it,
        alexandre.belloni@...tlin.com,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        linux-gpio@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        linux-pwm@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-riscv <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v7 00/11] Update the Icicle Kit device tree



On 11/03/2022 07:59, Zong Li wrote:
> On Thu, Mar 10, 2022 at 3:35 PM <Conor.Dooley@...rochip.com> wrote:
>>
>> On 10/03/2022 07:07, Palmer Dabbelt wrote:
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>>
>>> On Wed, 23 Feb 2022 12:48:16 PST (-0800), mail@...chuod.ie wrote:
>>>> On 14/02/2022 13:58, conor.dooley@...rochip.com wrote:
>>>>> From: Conor Dooley <conor.dooley@...rochip.com>
>>>>>
>>>>> This series updates the Microchip Icicle Kit device tree by adding a
>>>>> host of peripherals, and some updates to the memory map. In addition,
>>>>> the device tree has been split into a third part, which contains "soft"
>>>>> peripherals that are in the fpga fabric.
>>>>>
>>>>> Several of the entries are for peripherals that have not get had their
>>>>> drivers upstreamed, so in those cases the dt bindings are included where
>>>>> appropriate in order to avoid the many "DT compatible string <x> appears
>>>>> un-documented" errors.
>>>>>
>>>>> Depends on mpfs clock driver binding (on clk/next) to provide
>>>>> dt-bindings/clock/microchip,mpfs-clock.h for the device tree
>>>>> and on the other changes to the icicle/mpfs device tree from geert
>>>>> that are already in linux/riscv/for-next.
>>>
>>> So that's causing this to not build, as I can't build without the
>>> header.  I went ahead and put these on top of that patch, resulting in
>>>
>>>      * 48e8641c2bf0 - (HEAD -> riscv-microchip, palmer/riscv-microchip) MAINTAINERS: update riscv/microchip entry (2 minutes ago) <Conor Dooley>
>>>      * 528a5b1f2556 - riscv: dts: microchip: add new peripherals to icicle kit device tree (2 minutes ago) <Conor Dooley>
>>>      * 5b28df37d311 - riscv: dts: microchip: update peripherals in icicle kit device tree (2 minutes ago) <Conor Dooley>
>>>      * c5094f371008 - riscv: dts: microchip: refactor icicle kit device tree (2 minutes ago) <Conor Dooley>
>>>      * 72560c6559b8 - riscv: dts: microchip: add fpga fabric section to icicle kit (2 minutes ago) <Conor Dooley>
>>>      * 6546f920868e - riscv: dts: microchip: use clk defines for icicle kit (2 minutes ago) <Conor Dooley>
>>>      * df77f7735786 - dt-bindings: pwm: add microchip corepwm binding (2 minutes ago) <Conor Dooley>
>>>      * 735806d8a68e - dt-bindings: gpio: add bindings for microchip mpfs gpio (2 minutes ago) <Conor Dooley>
>>>      * 4cbcc0d7b397 - dt-bindings: rtc: add bindings for microchip mpfs rtc (2 minutes ago) <Conor Dooley>
>>>      * b435a1728c9f - dt-bindings: soc/microchip: add info about services to mpfs sysctrl (2 minutes ago) <Conor Dooley>
>>>      * 213556235526 - dt-bindings: soc/microchip: update syscontroller compatibles (2 minutes ago) <Conor Dooley>
>>>      * 2145bb687e3f - (clk/clk-microchip) dt-bindings: clk: microchip: Add Microchip PolarFire host binding (6 weeks ago) <Daire McNamara>
>>>      * e783362eb54c - (tag: v5.17-rc1) Linux 5.17-rc1 (7 weeks ago) <Linus Torvalds>
>>>
>>> sboyd: IIRC it's OK to consider clk-microchip as a stable branch?  If
>>> not I can just wait until you send your PR to Linus and send this later
>>> in the merge window, no big deal on my end.
>>>
>>> I've put this on for-next.  If that's a problem let me know and I'll
>>> delay it.
>> Great, thanks! Probably worth mentioning that I've deleted the dma node
>> that Zong Li is modifying in his pdma patchset.
>>
> 
> I guess I could re-sent the next version based on top of for-next, or
> delay my patch set until the next tag. What is your perspective?

I'll be honest and say that I have no idea what one is supposed to do here.
Palmer?

> 
>>>
>>> Thanks!
>>>
>>>>>
>>>>> Additionally, the interrupt-extended warnings on the plic/clint are
>>>>> cleared by [1] & [2].
>>>>>
>>>>> [1] https://lore.kernel.org/linux-riscv/cover.1639744468.git.geert@linux-m68k.org/
>>>>> [2] https://lore.kernel.org/linux-riscv/cover.1639744106.git.geert@linux-m68k.org/
>>>>
>>>> Hey Palmer,
>>>>
>>>> dt-bindings should be set now, so if you're still happy to take the
>>>> series via riscv, that'd be great. i2c, spi & usb patches ended going
>>>> via the sub-system trees (and have been dropped from the series), in
>>>> case those generate warnings for you.
>>>
>>> Something went off the rails in email land and #0 and #2 didn't end up
>>> in my patch queue but the rest did.  Luckily enough made it through that
>>> it didn't get lost, and lore's pretty great so this sort of thing isn't
>>> that big of a deal these days.  That said, email is a bit of a black box
>>> so figured I'd give you a heads up.
>>
>> Huh, interesting. I do check after sending that I can see the mails in my
>> other email's inbox & they're there. Guess good thing that I sent the follow up.
>> Thanks,
>> Conor.
>>
>>>
>>>>
>>>> Thanks,
>>>> Conor.
>>>>>
>>>>> Changes from v6:
>>>>> - Dropped i2c patch, as its in i2c-next
>>>>> - Added ack on gpio, reviewed-by on rtc
>>>>> - Dropped child nodes from sysctrl binding entirely, added a link to
>>>>>     the online documenation for the services the system controller can
>>>>>     provide
>>>>> - Dropped the #pwm-cells and replaced with a ref, a la Krzysztof's
>>>>>     series
>>>>>
>>>>> Changes from v5:
>>>>> - reworded the descriptions in the pwm binding to (hopefully) add
>>>>>     clarity
>>>>> - added -mask to the custom properties and made them 32 bit
>>>>> - renamed the i2c binding to corei2c, since it is not mpfs specific
>>>>> - removed the child nodes of the system controller in example/dts &
>>>>>     will create them in the driver.
>>>>>     @Rob, I assume keeping them documented is the correct thing to do?
>>>>> - removed the dependancy on the clock binding from the examples
>>>>> - reformatted rtc interrupts as per Rob's suggestion
>>>>>
>>>>> Changes from v4:
>>>>> - dont include icicle_kit_defconfig, accidentally added in v3
>>>>> - drop prescaler from mpfs-rtc & calculate the value instead
>>>>> - use corei2c as a fallback device for mpfs-i2c
>>>>> - drop spi dt-binding (on spi-next)
>>>>>     commit 2da187304e556ac59cf2dacb323cc78ded988169
>>>>> - drop usb dt-binding (on usb-next)
>>>>>
>>>>> Changes from v3:
>>>>> - drop "mailbox: change mailbox-mpfs compatible string", already upstream:
>>>>>     commit f10b1fc0161cd99e ("mailbox: change mailbox-mpfs compatible string")
>>>>> - fix copy paste error in microchip,mpfs-mailbox dt-binding
>>>>> - remove whitespace in syscontroller dt entry
>>>>>
>>>>> Changes from v2:
>>>>> - dropped plic int header & corresponding defines in dts{,i}
>>>>> - use $ref to drmode in mpfs-musb binding
>>>>> - split changes to dts{,i} again: functional changes to existing
>>>>>     elements now are in a new patch
>>>>> - drop num-cs property in mpfs-spi binding
>>>>> - dont make the system controller a simple-mfd
>>>>> - move the separate bindings for rng/generic system services into the
>>>>>     system controller binding
>>>>> - added an instance corei2c as i2c2 in the fabric dtsi
>>>>> - add version numbering to corepwm and corei2c compat string (-rtl-vN)
>>>>>
>>>>> Conor Dooley (11):
>>>>>     dt-bindings: soc/microchip: update syscontroller compatibles
>>>>>     dt-bindings: soc/microchip: add info about services to mpfs sysctrl
>>>>>     dt-bindings: rtc: add bindings for microchip mpfs rtc
>>>>>     dt-bindings: gpio: add bindings for microchip mpfs gpio
>>>>>     dt-bindings: pwm: add microchip corepwm binding
>>>>>     riscv: dts: microchip: use clk defines for icicle kit
>>>>>     riscv: dts: microchip: add fpga fabric section to icicle kit
>>>>>     riscv: dts: microchip: refactor icicle kit device tree
>>>>>     riscv: dts: microchip: update peripherals in icicle kit device tree
>>>>>     riscv: dts: microchip: add new peripherals to icicle kit device tree
>>>>>     MAINTAINERS: update riscv/microchip entry
>>>>>
>>>>>    .../bindings/gpio/microchip,mpfs-gpio.yaml    |  79 ++++++
>>>>>    ...ilbox.yaml => microchip,mpfs-mailbox.yaml} |   6 +-
>>>>>    .../bindings/pwm/microchip,corepwm.yaml       |  81 ++++++
>>>>>    .../bindings/rtc/microchip,mfps-rtc.yaml      |  58 ++++
>>>>>    .../microchip,mpfs-sys-controller.yaml        |  40 +++
>>>>>    ...icrochip,polarfire-soc-sys-controller.yaml |  35 ---
>>>>>    MAINTAINERS                                   |   2 +
>>>>>    .../dts/microchip/microchip-mpfs-fabric.dtsi  |  25 ++
>>>>>    .../microchip/microchip-mpfs-icicle-kit.dts   | 115 ++++++--
>>>>>    .../boot/dts/microchip/microchip-mpfs.dtsi    | 254 ++++++++++++++----
>>>>>    10 files changed, 591 insertions(+), 104 deletions(-)
>>>>>    create mode 100644 Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
>>>>>    rename Documentation/devicetree/bindings/mailbox/{microchip,polarfire-soc-mailbox.yaml => microchip,mpfs-mailbox.yaml} (82%)
>>>>>    create mode 100644 Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml
>>>>>    create mode 100644 Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml
>>>>>    create mode 100644 Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
>>>>>    delete mode 100644 Documentation/devicetree/bindings/soc/microchip/microchip,polarfire-soc-sys-controller.yaml
>>>>>    create mode 100644 arch/riscv/boot/dts/microchip/microchip-mpfs-fabric.dtsi
>>>>>
>>
> 
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