linux-kernel - Re: [PATCH v2 1/3] dt-bindings: spi: Add Nuvoton WPCM450 Flash Interface Unit (FIU)

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Date:   Mon, 28 Nov 2022 14:09:37 +0000
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Jonathan Neuschäfer <j.neuschaefer@....net>
CC:     Rob Herring <robh@...nel.org>, <linux-kernel@...r.kernel.org>,
        <openbmc@...ts.ozlabs.org>, <linux-spi@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] dt-bindings: spi: Add Nuvoton WPCM450 Flash
 Interface Unit (FIU)

On Mon, Nov 28, 2022 at 02:58:57PM +0100, Jonathan Neuschäfer wrote:
> On Mon, Nov 28, 2022 at 11:05:31AM +0000, Conor Dooley wrote:
> > On Sat, Nov 26, 2022 at 04:25:36PM -0600, Rob Herring wrote:
> [...]
> > > dtschema/dtc warnings/errors:
> > > Documentation/devicetree/bindings/spi/nuvoton,wpcm450-fiu.example.dts:18:18: fatal error: dt-bindings/clock/nuvoton,wpcm450-clk.h: No such file or directory
> > >    18 |         #include <dt-bindings/clock/nuvoton,wpcm450-clk.h>
> > >       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > compilation terminated.
> > > make[1]: *** [scripts/Makefile.lib:406: Documentation/devicetree/bindings/spi/nuvoton,wpcm450-fiu.example.dtb] Error 1
> > > make[1]: *** Waiting for unfinished jobs....
> > > make: *** [Makefile:1492: dt_binding_check] Error 2
> > 
> > FWIW this seems to now be in linux-next as dd71cd4dd6c9 ("spi: Add Nuvoton
> > WPCM450 Flash Interface Unit (FIU) bindings") & is breaking
> > dt_binding_check.
> 
> Ah, sorry about that. It should resolve itself once nuvoton,wpcm450-clk
> binding gets merged, but I don't see a definite timeframe for that, yet.
> 
> Alternatively, I can send a patch to simplify the example in the FIU
> binding.

Without being a Responsible Adult^TM for either SPI or DT, my preference
would be for simplifying the binding so that if your clk stuff doesn't
land for 6.2 the binding checks still work.