Message-ID: <e9287c9b-6ac7-dcb3-3b03-98bc83bbf119@microchip.com>
Date:   Thu, 10 Mar 2022 07:35:47 +0000
From:   <Conor.Dooley@...rochip.com>
To:     <palmer@...belt.com>, <sboyd@...nel.org>, <zong.li@...ive.com>
CC:     <Lewis.Hanly@...rochip.com>, <Daire.McNamara@...rochip.com>,
        <Ivan.Griffin@...rochip.com>, <atishp@...osinc.com>,
        <linus.walleij@...aro.org>, <brgl@...ev.pl>, <robh+dt@...nel.org>,
        <jassisinghbrar@...il.com>, <thierry.reding@...il.com>,
        <u.kleine-koenig@...gutronix.de>, <lee.jones@...aro.org>,
        <a.zummo@...ertech.it>, <alexandre.belloni@...tlin.com>,
        <paul.walmsley@...ive.com>, <aou@...s.berkeley.edu>,
        <geert@...ux-m68k.org>, <krzysztof.kozlowski@...onical.com>,
        <linux-gpio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>,
        <linux-rtc@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v7 00/11] Update the Icicle Kit device tree

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.

> 
> 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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