linux-kernel - Re: [PATCH v4 2/3] dt-bindings: phy: rockchip,inno-usb2phy: add rk3576

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Message-ID: <b3046637-7a35-49ef-a2b4-2f44355980a7@gmail.com>
Date: Tue, 8 Oct 2024 11:04:49 +0800
From: Frank Wang <frawang.cn@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: vkoul@...nel.org, kishon@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, heiko@...ech.de, linux-phy@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
 william.wu@...k-chips.com, tim.chen@...k-chips.com, frank.wang@...k-chips.com
Subject: Re: [PATCH v4 2/3] dt-bindings: phy: rockchip,inno-usb2phy: add
 rk3576

Hi Krzysztof,

On 2024/9/30 3:36, Krzysztof Kozlowski wrote:
> On Sun, Sep 29, 2024 at 02:10:24PM +0800, Frank Wang wrote:
>> From: Frank Wang <frank.wang@...k-chips.com>
>>
>> Add compatible for the USB2 phy in the Rockchip RK3576 SoC.
>>
>> This change also refactor the clocks list as there are new clocks
>> adding used for the USB MMU in RK3576 SoC.
>>
>> Signed-off-by: Frank Wang <frank.wang@...k-chips.com>
>> ---
>> Changelog:
>> v4:
>>   - refactor the clocks list used if:then:
>>
>> v3:
>>   - narrowed rk3576 clocks by compatible property.
>>
>> v2:
>>   - Categorize clock names by oneOf keyword.
>>
>> v1:
>>   - https://patchwork.kernel.org/project/linux-phy/patch/20240923025326.10467-1-frank.wang@rock-chips.com/
>>
>>   .../bindings/phy/rockchip,inno-usb2phy.yaml   | 46 ++++++++++++++++++-
>>   1 file changed, 44 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/phy/rockchip,inno-usb2phy.yaml b/Documentation/devicetree/bindings/phy/rockchip,inno-usb2phy.yaml
>> index 5254413137c6..fc2c03d01a20 100644
>> --- a/Documentation/devicetree/bindings/phy/rockchip,inno-usb2phy.yaml
>> +++ b/Documentation/devicetree/bindings/phy/rockchip,inno-usb2phy.yaml
>> @@ -20,6 +20,7 @@ properties:
>>         - rockchip,rk3366-usb2phy
>>         - rockchip,rk3399-usb2phy
>>         - rockchip,rk3568-usb2phy
>> +      - rockchip,rk3576-usb2phy
>>         - rockchip,rk3588-usb2phy
>>         - rockchip,rv1108-usb2phy
>>   
>> @@ -34,10 +35,12 @@ properties:
>>       const: 0
>>   
>>     clocks:
>> -    maxItems: 1
>> +    minItems: 1
>> +    maxItems: 3
>>   
>>     clock-names:
>> -    const: phyclk
>> +    minItems: 1
>> +    maxItems: 3
>>   
>>     assigned-clocks:
>>       description:
>> @@ -172,6 +175,45 @@ allOf:
>>               - interrupts
>>               - interrupt-names
>>   
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - rockchip,px30-usb2phy
>> +              - rockchip,rk3128-usb2phy
>> +              - rockchip,rk3228-usb2phy
>> +              - rockchip,rk3308-usb2phy
>> +              - rockchip,rk3328-usb2phy
>> +              - rockchip,rk3366-usb2phy
>> +              - rockchip,rk3399-usb2phy
>> +              - rockchip,rk3568-usb2phy
>> +              - rockchip,rk3588-usb2phy
>> +              - rockchip,rv1108-usb2phy
>> +    then:
>> +      properties:
>> +        clocks:
>> +          maxItems: 1
>> +        clock-names:
>> +          const: phyclk
> maxItems: 1 instead

Sorry for late reply.

Do you mean use "maxItems: 1" instead of "const: phyclk" ?


>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - rockchip,rk3576-usb2phy
>> +    then:
>> +      properties:
>> +        clocks:
>> +          minItems: 3
>> +          maxItems: 3
>> +        clock-names:
>> +          items:
>> +            - const: phyclk
>> +            - const: aclk
>> +            - const: aclk_slv
> This list goes to the top property with minItems: 1. Here you have only
> minItems: 3.
>
> This way you have only one definition of entire list with same order of
> items between variants.

For rockchip,rk3576-usb2phy, three clocks are all required, and the 
driver does not care about the order of the clocks.

So is the above definition correct?


Best regards,
Frank

> Best regards,
> Krzysztof
>