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

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Message-ID: <Y4SV+5/3Y0dw5QeU@wendy>
Date:   Mon, 28 Nov 2022 11:05:31 +0000
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Rob Herring <robh@...nel.org>
CC:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        <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 Sat, Nov 26, 2022 at 04:25:36PM -0600, Rob Herring wrote:
> 
> On Thu, 24 Nov 2022 20:13:58 +0100, Jonathan Neuschäfer wrote:
> > The Flash Interface Unit (FIU) is the SPI flash controller in the
> > Nuvoton WPCM450 BMC SoC. It supports four chip selects, and direct
> > (memory-mapped) access to 16 MiB per chip. Larger flash chips can be
> > accessed by software-defined SPI transfers.
> > 
> > The FIU in newer NPCM7xx SoCs is not compatible with the WPCM450 FIU.
> > 
> > Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
> > ---
> > 
> > v2:
> > - A few cleanups suggested by Krzysztof Kozlowski
> > - Simplify binding by making second reg item mandatory
> > 
> > v1:
> > - https://lore.kernel.org/lkml/20221105185911.1547847-4-j.neuschaefer@gmx.net/
> > ---
> >  .../bindings/spi/nuvoton,wpcm450-fiu.yaml     | 66 +++++++++++++++++++
> >  1 file changed, 66 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/spi/nuvoton,wpcm450-fiu.yaml
> > 
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> 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.

Thanks,
Conor.