linux-kernel - Re: [PATCH v3 00/10] regulator/mfd/clock: dt-bindings: Samsung S2M and S5M to dtschema

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Message-ID: <YXEtuX5j9z8es0/i@google.com>
Date:   Thu, 21 Oct 2021 10:07:05 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v3 00/10] regulator/mfd/clock: dt-bindings: Samsung S2M
 and S5M to dtschema

On Wed, 20 Oct 2021, Krzysztof Kozlowski wrote:

> On 20/10/2021 18:08, Krzysztof Kozlowski wrote:
> > On 20/10/2021 18:04, Lee Jones wrote:
> >> On Wed, 06 Oct 2021, Krzysztof Kozlowski wrote:
> >>
> >>> Hi All,
> >>>
> >>> Changes since v2
> >>> ================
> >>> 1. Add Rob's tags.
> >>> 2. Remove "regulator-name" from properties (all regulator dtschema).
> >>> 3. Move "unevaluatedProperties" higher to make code easier to read (all regulator dtschema).
> >>> 4. Add ref-type to op-mode property (patch 6: s5m8767 regulators).
> >>>
> >>> Changes since v1
> >>> ================
> >>> 1. Drop DTS patches - applied.
> >>> 2. Fully remove bindings/regulator/samsung,s5m8767.txt .
> >>> 3. Minor subject reformatting and few typos in text.
> >>>
> >>>
> >>> Intro
> >>> =====
> >>> This patchset converts all devicetree bindings of Samsung S2M and S5M
> >>> PMIC devices from txt to dtschema.
> >>>
> >>> It includes also two fixes because later conversion depends on it
> >>> (contextually).
> >>>
> >>>
> >>> Merging/dependencies
> >>> ====================
> >>> 1. Regulator related binding changes depend on first two commits (the
> >>>    fixes), because of context.
> >>> 2. The mfd bindings depend on clock and regulator bindings.
> >>>
> >>> The fixes and bindings changes (patches 1-10) should go via the same
> >>> tree.  For example regulator or mfd tree.
> >>>
> >>> Another alternative is that regulator patches (1-2, 4-6) go via Mark who
> >>> later gives MFD a stable branch/tag to pull. Then the clock and MFD
> >>> bindings would go on top via MFD tree. Or any other setup you would like
> >>> to have. :)
> >>>
> >>>
> >>> Overview of devices
> >>> ===================
> >>> Essentially all Samsung S2M and S5M PMICs are very similar devices. They
> >>> provide the same functionality: regulators, RTC, 2 or 3 clocks and main
> >>> power management (e.g. power cut to SoC).
> >>>
> >>> The differences are mostly in registers layout and number of regulators.
> >>>
> >>> The drivers are built around one common part, mfd/sec-core.c, and share
> >>> some drivers between devices:
> >>> 1. MFD sec-core for all devices,
> >>> 1. one clock driver for most of devices,
> >>> 2. one RTC driver for all devices,
> >>> 3. three regulator drivers.
> >>>
> >>> The regulator drivers were implementing slightly different features,
> >>> therefore one regulator binding for all devices does not make much
> >>> sense.  However the clock device binding can be shared.
> >>>
> >>> The final dtschema bindings try to implement this - share only the clock
> >>> bindings.
> >>>
> >>> Best regards,
> >>> Krzysztof
> >>>
> >>> Krzysztof Kozlowski (10):
> >>>   regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS
> >>>     is disabled
> >>>   regulator: dt-bindings: samsung,s5m8767: correct
> >>>     s5m8767,pmic-buck-default-dvs-idx property
> >>>   dt-bindings: clock: samsung,s2mps11: convert to dtschema
> >>>   regulator: dt-bindings: samsung,s2m: convert to dtschema
> >>>   regulator: dt-bindings: samsung,s2mpa01: convert to dtschema
> >>>   regulator: dt-bindings: samsung,s5m8767: convert to dtschema
> >>>   dt-bindings: mfd: samsung,s2mps11: convert to dtschema
> >>>   dt-bindings: mfd: samsung,s2mpa01: convert to dtschema
> >>>   dt-bindings: mfd: samsung,s5m8767: convert to dtschema
> >>>   dt-bindings: mfd: samsung,s5m8767: document buck and LDO supplies
> >>
> >> Looks like these are ready to be pushed.
> >>
> >> However, I am not in receipt of patches 1-2.
> >>
> >> Am I okay to merge 3-10 right now?
> > 
> > No. This is v3, but we need v4. Please:
> > 1. Merge tag from Mark:
> > https://lore.kernel.org/lkml/YWCT+YL%2F9qHbF9f0@sirena.org.uk/
> > 
> > 2. Then apply patches 7-10 (MFD bindings).
> 
> ... patches 7-10 from that v4 of course. They start here:
> https://lore.kernel.org/lkml/20211008113931.134847-4-krzysztof.kozlowski@canonical.com/

... and these can do in on their own?  With no inter-dependencies?

Or is Rob going to tell me off again?

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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