linux-kernel - Re: [PATCH 07/18] MIPS: DTS: jz4780: fix otg node as reported by dtbscheck

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Date:   Sat, 09 Apr 2022 13:27:03 +0100
From:   Paul Cercueil <paul@...pouillou.net>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     "H. Nikolaus Schaller" <hns@...delico.com>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, letux-kernel@...nphoenux.org
Subject: Re: [PATCH 07/18] MIPS: DTS: jz4780: fix otg node as reported by
 dtbscheck

Hi,

Le sam., avril 9 2022 at 13:15:37 +0200, Krzysztof Kozlowski 
<krzysztof.kozlowski@...aro.org> a écrit :
> On 08/04/2022 20:37, H. Nikolaus Schaller wrote:
>>  arch/mips/boot/dts/ingenic/ci20.dtb: usb@...00000: compatible: 
>> 'oneOf' conditional failed, one must be fixed:
>>  	['ingenic,jz4780-otg', 'snps,dwc2'] is too long
>>  	['ingenic,jz4780-otg', 'snps,dwc2'] is too short
>>  	'brcm,bcm2835-usb' was expected
>>  	'hisilicon,hi6220-usb' was expected
>>  	'rockchip,rk3066-usb' was expected
>>  	'ingenic,jz4780-otg' is not one of ['rockchip,px30-usb', 
>> 'rockchip,rk3036-usb', 'rockchip,rk3188-usb', 'rockchip,rk3228-usb', 
>> 'rockchip,rk3288-usb', 'rockchip,rk3308-usb', 'rockchip,rk3328-usb', 
>> 'rockchip,rk3368-usb', 'rockchip,rv1108-usb']
>>  	'lantiq,arx100-usb' was expected
>>  	'lantiq,xrx200-usb' was expected
>>  	'ingenic,jz4780-otg' is not one of ['amlogic,meson8-usb', 
>> 'amlogic,meson8b-usb', 'amlogic,meson-gxbb-usb', 
>> 'amlogic,meson-g12a-usb', 'intel,socfpga-agilex-hsotg']
>>  	'amcc,dwc-otg' was expected
>>  	'apm,apm82181-dwc-otg' was expected
>>  	'snps,dwc2' was expected
>>  	'st,stm32f4x9-fsotg' was expected
>>  	'st,stm32f4x9-hsotg' was expected
>>  	'st,stm32f7-hsotg' was expected
>>  	'st,stm32mp15-fsotg' was expected
>>  	'st,stm32mp15-hsotg' was expected
>>  	'samsung,s3c6400-hsotg' was expected
>>  	'intel,socfpga-agilex-hsotg' was expected
> 
> You really don't need to paste entire warning.
> 
> 
>>  	From schema: Documentation/devicetree/bindings/usb/dwc2.yaml
>> 
>>  Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
>>  ---
>>   arch/mips/boot/dts/ingenic/jz4780.dtsi | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>>  diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi 
>> b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>  index 2021836983c96..c5124459678b7 100644
>>  --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>  +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>  @@ -576,7 +576,7 @@ bch: bch@...d0000 {
>>   	};
>> 
>>   	otg: usb@...00000 {
>>  -		compatible = "ingenic,jz4780-otg", "snps,dwc2";
>>  +		compatible = "snps,dwc2";
> 
> This looks wrong, the block usually should have a specific compatible.
> Please mention why it does not.

Agreed. The "snps,dwc2" should be a fallback string, otherwise there is 
no way to uniquely identify the JZ4780 implementation of the IP.

Cheers,
-Paul