Date:   Wed, 13 Oct 2021 18:08:17 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Sam Shih <sam.shih@...iatek.com>
Cc:     Ryder.Lee@...iatek.com, devicetree@...r.kernel.org,
        enric.balletbo@...labora.com, fparent@...libre.com,
        gregkh@...uxfoundation.org, herbert@...dor.apana.org.au,
        hsinyi@...omium.org, john@...ozen.org, linus.walleij@...aro.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-serial@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux@...ck-us.net, mpm@...enic.com, mturquette@...libre.com,
        robh+dt@...nel.org, sboyd@...nel.org, sean.wang@...nel.org,
        seiya.wang@...iatek.com, wim@...ux-watchdog.org
Subject: Re: [v3,7/9] dt-bindings: arm64: dts: mediatek: Add mt7986 series

Hi Sam,

On 12/10/2021 12:29, Sam Shih wrote:
> Hi
> 
> On Fri, 2021-10-08 at 15:53 +0200, Matthias Brugger wrote:
>> Hi Sam,
>>
>> I'd advise to split this series in parts for:
>> - basic device support via dts.
>> - pinctrl driver + dts
>> - clk driver + dts
> 
> Okay, I will split the patches that are still under review into the
> above patch series.
> 
> But I have a dumb question, currently, we have some patches that have
> been assigned version numbers.
> If I want to seprate original patch series, and resend 3 new patch
> series (basic / pinctrl / clock) according to your comment, if I want
> to keep the preview change log, tags in the patch set:
> 
> like:
> ---
> v3: changed 'MT7986' to 'MT7986 series' in the commit message
> v2: added an Acked-by tag
> ---
> 
> Which version number should I use for these new patch series ?
> 

I'd use v4 keeping the change-log and adding a link with hint to v3 in the cover 
letter.

> Does the version number in corver-letter and the version number in each
> patch need to be the same in the entire patch series ?
> 

Yes, otherwise the version number doesn't make to much sense.

> // (Original patch series/thread, version number is v3)
> [PATCH v3 0/3] Add basic SoC support for mediatek mt7986
>    [PATCH v3 1/3] dt-bindings: arm64: dts: mediatek: Add mt7986 series
>    // (the version number has been updated to v5 previously)
>    // (basic part only, not include pinctrl and clock nodes)
>    [PATCH v5 2/3] arm64: dts: mediatek: add mt7986a support
>    [PATCH v5 3/3] arm64: dts: mediatek: add mt7986b support

use v6 explaining where in the mailing list one can find v5.

> 
> // (New clock driver patch series)
> [PATCH 0/3] Add clock driver support for mediatek mt7986
>    [PATCH v3,1/3] dt-bindings: clock: mediatek: document clk bindings
> for mediatek mt7986 SoC
>    // (the version number has been updated to v3 previously)
>    [PATCH v3 2/3] clk: mediatek: add mt7986 clock IDs
>    [PATCH v2 3/3] clk: mediatek: add mt7986 clock support
> 

Same here, use v4.

> // (New pinctrl driver patch series)
> [PATCH 0/4] Add pinctrl driver support for mediatek mt7986
>    // (the version number has been updated to v6 previously)
>    [PATCH v6 1/4] dt-bindings: pinctrl: update bindings for MT7986 SoC
>    // (the version number has been updated to v2 previously)
>    [PATCH v2 2/4] pinctrl: mediatek: add support for MT7986 SoC
>    [PATCH 3/4] arm64: dts: mediatek: add mt7986a pinctrl support
>    [PATCH 3/4] arm64: dts: mediatek: add mt7986b pinctrl support
> 

use v7 here.

>>
>> I would also advise to not send new versions of patches as new
>> threads and don't
>> respond in the same thread. At least for me that breaks my workflow
>> as I use b4.
> 
> If I don't respond to the next patch set in the same thread, should I
> create an entire new patch series ?
> 

Respond to any review comments in the thread but once you are ready to send a 
new version of the patch, send the whole series with an incremented

> For example, if I want to update PATCH 2/3 in the bellows patch series,
> and my PATCH 1/3 has been accepted by reviewer previously
> 
> [PATCH v2 0/3] Add basic SoC support for mediatek mt7986
>    [PATCH v2 1/3] ...   (patch set v1, applied by matainer)

beware: applied != accepted
reviewer != maintainer

if the patch got applied to some maintainer repo, then in the next version drop 
that patch (it is already applied) but mention that in the cover letter.

>    [PATCH v2 2/3] ...   (patch set v2, need to be upgrade to v3)
>    [PATCH v2 3/3] ...   (patch set v1, waiting for review)
> 

This series would be v3, if 1/3 is applied, drop. 2/3 will have changes and 3/3 
will be the same as in v2.

> Is this correct to send patch mail to maintaiers for the above
> situation ?
> 
> [PATCH v3 0/2] Add basic SoC support for mediatek mt7986
>    [PATCH v3 1/2] ...   (patch set v3)
>    [PATCH v3 2/2] ...   (still patch set v1, waiting for review)
> 

yes, that's how is expected you send your patches.

Let me know if you have any further questions :)

Regards,
Matthias

> 
>>
>> Regards,
>> Matthias
>>
>>
>> On 24/09/2021 13:40, Sam Shih wrote:
>>> MT7986 series is Mediatek's new 4-core SoC, which is mainly for
>>> wifi-router application. The difference between mt7986a and mt7986b
>>> is that some pins do not exist on mt7986b.
>>>
>>> Signed-off-by: Sam Shih <sam.shih@...iatek.com>
>>> Acked-by: Rob Herring <robh@...nel.org>
>>>
>>> ---
>>> v3: changed 'MT7986' to 'MT7986 series' in the commit message
>>> v2: added an Acked-by tag
>>> ---
>>>    Documentation/devicetree/bindings/arm/mediatek.yaml | 8 ++++++++
>>>    1 file changed, 8 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml
>>> b/Documentation/devicetree/bindings/arm/mediatek.yaml
>>> index 80a05f6fee85..a9a778269684 100644
>>> --- a/Documentation/devicetree/bindings/arm/mediatek.yaml
>>> +++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
>>> @@ -76,6 +76,14 @@ properties:
>>>              - enum:
>>>                  - mediatek,mt7629-rfb
>>>              - const: mediatek,mt7629
>>> +      - items:
>>> +          - enum:
>>> +              - mediatek,mt7986a-rfb
>>> +          - const: mediatek,mt7986a
>>> +      - items:
>>> +          - enum:
>>> +              - mediatek,mt7986b-rfb
>>> +          - const: mediatek,mt7986b
>>>          - items:
>>>              - enum:
>>>                  - mediatek,mt8127-moose
>>>
> 
> Thanks,
> Sam
> 

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