Hi Geert
> > grep asahi-kasei sound/soc/codecs/*
> > sound/soc/codecs/ak4104.c: { .compatible = "asahi-kasei,ak4104", },
> > sound/soc/codecs/ak4554.c: { .compatible = "asahi-kasei,ak4554" },
> > sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4642", .data = &ak4642_drvdata},
> > sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4643", .data = &ak4643_drvdata},
> > sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4648", .data = &ak4648_drvdata},
> > sound/soc/codecs/ak5386.c: { .compatible = "asahi-kasei,ak5386", },
> >
> > ak4642 driver can't probe by "ak";
>
> That's bad. And all but one of these match entries have been added
> _after_ the addition of "ak" to vendor-prefixes.txt...
>
> Outside sound, there's also "asahi-kasei,ak8975" vs. "ak,ak8975".
In my quick check,
The driver which is supporting "ak" is only ak8975.
Other Asahi-Kasei driver is using "asahi-kasei".
Very interesting is that the document of ak8975
./Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt
said it should be "asahi-kasei"
what is the policy of Documentation/devicetree/bindings/vendor-prefixes.txt ?
-----------------------------------------------
grep compatible `find | grep ".*/ak"`
./arch/arm/boot/dts/aks-cdu.dts: compatible = "gpio-leds";
./drivers/iio/magnetometer/ak8975.c: { .compatible = "asahi-kasei,ak8975", },
./drivers/iio/magnetometer/ak8975.c: { .compatible = "ak8975", },
./sound/soc/codecs/ak4104.c: { .compatible = "asahi-kasei,ak4104", },
./sound/soc/codecs/ak5386.c: { .compatible = "asahi-kasei,ak5386", },
./sound/soc/codecs/ak4554.c: { .compatible = "asahi-kasei,ak4554" },
./sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4642", .data = &ak4642_drvdata},
./sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4643", .data = &ak4643_drvdata},
./sound/soc/codecs/ak4642.c: { .compatible = "asahi-kasei,ak4648", .data = &ak4648_drvdata},
./Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt: - compatible : should be "asahi-kasei,ak8975"
./Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt: compatible = "asahi-kasei,ak8975";
./Documentation/devicetree/bindings/sound/ak4642.txt: - compatible : "asahi-kasei,ak4642" or "asahi-kasei,ak4643" or "asahi-kasei,ak4648"
./Documentation/devicetree/bindings/sound/ak4642.txt: compatible = "asahi-kasei,ak4642";
./Documentation/devicetree/bindings/sound/ak5386.txt: - compatible : "asahi-kasei,ak5386"
./Documentation/devicetree/bindings/sound/ak5386.txt: compatible = "asahi-kasei,ak5386";
./Documentation/devicetree/bindings/sound/ak4104.txt: - compatible : "asahi-kasei,ak4104"
./Documentation/devicetree/bindings/sound/ak4104.txt: compatible = "asahi-kasei,ak4104";
./Documentation/devicetree/bindings/sound/ak4554.c: - compatible : "asahi-kasei,ak4554"
./Documentation/devicetree/bindings/sound/ak4554.c: compatible = "asahi-kasei,ak4554";
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