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

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Date:   Wed, 20 Oct 2021 18:08:21 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Lee Jones <lee.jones@...aro.org>
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 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).

Best regards,
Krzysztof