linux-kernel - Re: [PATCH v2 6/8] dt-bindings: pinctrl: add compatible for Allwinner A523/T527

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Message-ID: <CAGb2v66eOuT+0n71OEPUky_rLd37_msT4b1+QC+8Nyhwtqarng@mail.gmail.com>
Date: Thu, 27 Feb 2025 20:46:37 +0800
From: Chen-Yu Tsai <wens@...e.org>
To: Andre Przywara <andre.przywara@....com>
Cc: "Rob Herring (Arm)" <robh@...nel.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-sunxi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-gpio@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, 
	Samuel Holland <samuel@...lland.org>
Subject: Re: [PATCH v2 6/8] dt-bindings: pinctrl: add compatible for Allwinner A523/T527

On Thu, Feb 27, 2025 at 7:46 PM Andre Przywara <andre.przywara@....com> wrote:
>
> On Thu, 13 Feb 2025 19:19:48 -0600
> "Rob Herring (Arm)" <robh@...nel.org> wrote:
>
> Hi Rob,
>
> > On Fri, 14 Feb 2025 00:37:32 +0000, Andre Przywara wrote:
> > > The A523 contains a pin controller similar to previous SoCs, although
> > > using 10 GPIO banks (PortB-PortK), all of them being IRQ capable.
> > > With this SoC we introduce a new style of binding, where the pinmux values
> > > for each pin group are stored in the new "allwinner,pinmux" property in
> > > the DT node, instead of requiring every driver to store a mapping between
> > > the function names and the required pinmux.
> > >
> > > Add a new binding file, since all the different variants of the old
> > > binding are making the file a bit unwieldy to handle already, and the new
> > > property would make the situation worse.
> > >
> > > Signed-off-by: Andre Przywara <andre.przywara@....com>
> > > ---
> > >  .../allwinner,sun55i-a523-pinctrl.yaml        | 177 ++++++++++++++++++
> > >  1 file changed, 177 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.yaml
> > >
> >
> > My bot found errors running 'make dt_binding_check' on your patch:
> >
> > yamllint warnings/errors:
> >
> > dtschema/dtc warnings/errors:
> > Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.example.dts:24:18: fatal error: dt-bindings/clock/sun55i-a523-r-ccu.h: No such file or directory
> >    24 |         #include <dt-bindings/clock/sun55i-a523-r-ccu.h>
> >       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Ah yeah, of course, that's in another series. What's the best approach
> here? I could cheekily import an existing header file, the symbol names in
> there are often the same (ccu-sun20i-d1-r.h defines the same symbol, even
> with the same number).
> Or I just replace it below with the number "1"?

This, or just drop in a random number.

ChenYu

> Or let git format-patch append the patch-id of the clock binding header
> patch?
>
> Cheers,
> Andre
>
> > compilation terminated.
> > make[2]: *** [scripts/Makefile.dtbs:131: Documentation/devicetree/bindings/pinctrl/allwinner,sun55i-a523-pinctrl.example.dtb] Error 1
> > make[2]: *** Waiting for unfinished jobs....
> > make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1511: dt_binding_check] Error 2
> > make: *** [Makefile:251: __sub-make] Error 2
> >
> > doc reference errors (make refcheckdocs):
> >
> > See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250214003734.14944-7-andre.przywara@arm.com
> >
> > The base for the series is generally the latest rc1. A different dependency
> > should be noted in *this* patch.
> >
> > If you already ran 'make dt_binding_check' and didn't see the above
> > error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > date:
> >
> > pip3 install dtschema --upgrade
> >
> > Please check and re-submit after running the above command yourself. Note
> > that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> > your schema. However, it must be unset to test all examples with your schema.
> >
>
>