Re: [PATCH 1/4] dt-bindings: pinctrl: Combine MediaTek MT67xx pinctrl binding docs

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Il 21/09/22 12:24, yassine.oudjana@xxxxxxxxx ha scritto:


On Wed, Sep 21 2022 at 11:45:41 AM +0200, AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:
Il 21/09/22 11:30, yassine.oudjana@xxxxxxxxx ha scritto:


On Wed, Sep 21 2022 at 09:11:12 AM +0200, Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote:
On 20/09/2022 10:06, AngeloGioacchino Del Regno wrote:
 Il 19/09/22 19:01, Yassine Oudjana ha scritto:
 From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>

 Documents for MT6779, MT6795 and MT6797 that currently exist share
 most properties, and each one has slightly differently worded
 descriptions for those properties. Combine all three documents into
 one common document for all MT67xx SoC pin controllers, picking a few
 parts from each and accounting for differences such as items in reg
 and reg-names properties. Also document the MT6765 pin controller
 which currently has a driver but no DT binding documentation. It should
 be possible to also include bindings for MT8183 and MT8188, but these
 have some additional properties that might complicate things a bit,
 so they are left alone for now.

 Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
 ---
   .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 207 ------------------
   .../pinctrl/mediatek,mt6797-pinctrl.yaml      | 176 ---------------
   ...6795.yaml => mediatek,mt67xx-pinctrl.yaml} | 181 +++++++++++----

 Hello Yassine,
 nice cleanup over here!

 There's a catch though: as far as I know, wildcards are not permitted... so you
 should, at this point, merge all of these in mediatek,mt6779-pinctrl.yaml instead.

 Before jumping to that, though... Krzysztof, can you please confirm (or deny)?

Wildcards are not allowed in compatibles. In filename wildcards or
family name could work if they are really going to match the devices. I
have doubts here. 67xx is quite a lot of different devices, so I am not
sure this will cover them all.

I would prefer one name (oldest SoC or lowest number).

Lowest number (and probably oldest too but not sure since mediatek naming conventions are a bit weird) currently documented is mt6779, but mt6765 gets documented in this patch and mt6735 (this one I know for sure is older than the rest) in a following patch, so do I just stick with mt6779 or do I change it in the following patches documenting mt6765 and mt6735?


I see the sequence as:

1. You merge mediatek,mt6797-pinctrl.yaml into mediatek,mt6779-pinctrl.yaml; then

And mediatek,pinctrl-mt6795 gets merged here too I assume?


Yeah sorry about forgetting that one. Anyway, obviously, do one merge operation
per commit!


2. Adding MT6765 documentation to mediatek,mt6779-pinctrl.yaml; then
3. Adding support for MT6735, documentation goes again to 6779-pinctrl.

This means that you're working with mediatek,mt6779-pinctrl.yaml :-)

P.S.: That was also a suggestion about how to split things per-commit!

Cheers,
Angelo

Thanks,
Yassine


Best regards,
Krzysztof










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