linux-kernel - Re: [PATCH 18/22] dt-bindings: spi: document support for SA8255p

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Message-ID: <e391c0b3-079c-48be-b343-f4e893f910af@quicinc.com>
Date: Thu, 29 Aug 2024 07:28:16 -0700
From: Nikunj Kela <quic_nkela@...cinc.com>
To: Rob Herring <robh@...nel.org>
CC: <andersson@...nel.org>, <konradybcio@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <rafael@...nel.org>, <viresh.kumar@...aro.org>,
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        <quic_psodagud@...cinc.com>, <quic_tsoni@...cinc.com>,
        <quic_shazhuss@...cinc.com>, Praveen Talari <quic_ptalari@...cinc.com>
Subject: Re: [PATCH 18/22] dt-bindings: spi: document support for SA8255p


On 8/28/2024 8:06 PM, Rob Herring wrote:
> On Wed, Aug 28, 2024 at 01:37:17PM -0700, Nikunj Kela wrote:
>> Add compatible representing spi support on SA8255p.
>>
>> Clocks and interconnects are being configured in firmware VM
>> on SA8255p platform, therefore making them optional.
>>
>> CC: Praveen Talari <quic_ptalari@...cinc.com>
>> Signed-off-by: Nikunj Kela <quic_nkela@...cinc.com>
>> ---
>>  .../bindings/spi/qcom,spi-geni-qcom.yaml      | 64 +++++++++++++++----
>>  1 file changed, 53 insertions(+), 11 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
>> index 2e20ca313ec1..74ea7c4f2451 100644
>> --- a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
>> +++ b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
>> @@ -25,10 +25,41 @@ description:
>>  
>>  allOf:
>>    - $ref: /schemas/spi/spi-controller.yaml#
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: qcom,sa8255p-geni-spi
>> +    then:
>> +      required:
>> +        - power-domains
>> +        - power-domain-names
> blank line
>
>> +      properties:
>> +        power-domains:
>> +          minItems: 2
>> +          maxItems: 2
> Drop maxItems as 2 is already the max (with my change below).
>
> Add blank line here.
>
>> +    else:
>> +      required:
>> +        - clocks
>> +        - clock-names
> blank line
>
>> +      properties:
>> +        power-domains:
>> +          maxItems: 1
> blank line
>
>> +        interconnects:
>> +          minItems: 2
>> +          maxItems: 3
> blank line
>
>> +        interconnect-names:
>> +          minItems: 2
>> +          items:
>> +            - const: qup-core
>> +            - const: qup-config
>> +            - const: qup-memory
>>  
>>  properties:
>>    compatible:
>> -    const: qcom,geni-spi
>> +    enum:
>> +      - qcom,geni-spi
>> +      - qcom,sa8255p-geni-spi
>>  
>>    clocks:
>>      maxItems: 1
>> @@ -45,15 +76,10 @@ properties:
>>        - const: rx
>>  
>>    interconnects:
>> -    minItems: 2
>> -    maxItems: 3
>> +    description: phandles of interconnect bw provider
>>  
>>    interconnect-names:
>> -    minItems: 2
>> -    items:
>> -      - const: qup-core
>> -      - const: qup-config
>> -      - const: qup-memory
>> +    description: names of interconnects
> No, keep all properties defined at the top-level and then add 
> constraints in if/then schemas.
>
>>  
>>    interrupts:
>>      maxItems: 1
>> @@ -61,15 +87,18 @@ properties:
>>    operating-points-v2: true
>>  
>>    power-domains:
>> -    maxItems: 1
>> +    $ref: "/schemas/power/power-domain.yaml#/properties/power-domains"
> Do you see an example of this anywhere else? No. You need:
>
> minItems: 1
> maxItems: 2

Thanks Rob for reviewing the patch. Will take care of your comments in
next version.


>> +
>> +  power-domain-names:
>> +    items:
>> +      - const: power
>> +      - const: perf
>>  
>>    reg:
>>      maxItems: 1
>>  
>>  required:
>>    - compatible
>> -  - clocks
>> -  - clock-names
>>    - interrupts
>>    - reg
>>  
>> @@ -116,3 +145,16 @@ examples:
>>          #address-cells = <1>;
>>          #size-cells = <0>;
>>      };
>> +
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +
>> +    spi@...000 {
>> +        compatible = "qcom,sa8255p-geni-spi";
>> +        reg = <0x888000 0x4000>;
>> +        interrupts = <GIC_SPI 584 IRQ_TYPE_LEVEL_HIGH>;
>> +        #address-cells = <1>;
>> +        #size-cells = <0>;
>> +        power-domains = <&scmi10_pd 16>, <&scmi10_dvfs 16>;
>> +        power-domain-names = "power", "perf";
>> +    };
>> -- 
>> 2.34.1
>>