Re: [PATCH v3 1/2] dt-bindings: power: reset: qcom-pon: update "reg" property details

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On 7/14/2022 4:48 AM, Krzysztof Kozlowski wrote:
> On 13/07/2022 21:33, Anjelique Melendez wrote:
>> From: David Collins <quic_collinsd@xxxxxxxxxxx>
>>
>> Update the description of "reg" property to add the PON_PBS base
>> address along with PON_HLOS base address.  Also add "reg-names"
>> property description.
>>
>> Signed-off-by: David Collins <quic_collinsd@xxxxxxxxxxx>
>> Signed-off-by: Anjelique Melendez <quic_amelende@xxxxxxxxxxx>
>> ---
>>  Documentation/devicetree/bindings/power/reset/qcom,pon.yaml | 73 ++++++++++++++++++++++++++++--
>>  1 file changed, 69 insertions(+), 4 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
>> index 353f155d..562fe308 100644
>> --- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
>> +++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
>> @@ -15,18 +15,26 @@ description: |
>>  
>>    This DT node has pwrkey and resin as sub nodes.
>>  
>> -allOf:
>> -  - $ref: reboot-mode.yaml#
>> -
>>  properties:
>>    compatible:
>>      enum:
>>        - qcom,pm8916-pon
>>        - qcom,pms405-pon
>>        - qcom,pm8998-pon
>> +      - qcom,pmk8350-pon
>>  
>>    reg:
>> -    maxItems: 1
>> +    description: |
>> +      Specifies the SPMI base address for the PON (power-on) peripheral.  For
>> +      PMICs that have the PON peripheral (GEN3) split into PON_HLOS and PON_PBS
>> +      (e.g. PMK8350), this can hold addresses of both PON_HLOS and PON_PBS
>> +      peripherals.  In that case, the PON_PBS address needs to be specified to
>> +      facilitate software debouncing on some PMIC.
> 
> You miss here min and maxItems
ACK
> 
>> +
>> +  reg-names:
>> +    description: |
>> +      For PON GEN1 and GEN2, it should be "pon". For PON GEN3 it should include
>> +      "hlos" and optionally "pbs".
> 
> Skip description. You miss here min and maxItems.
> 
> See
> https://elixir.bootlin.com/linux/v5.19-rc6/source/Documentation/devicetree/bindings/clock/samsung,exynos7-clock.yaml#L57
> for examples.
ACK
> 
> 
>>  
>>    pwrkey:
>>      type: object
>> @@ -42,6 +50,63 @@ required:
>>  
>>  unevaluatedProperties: false
>>  
>> +allOf:
>> +  - $ref: reboot-mode.yaml#
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: qcom,pm8916-pon
>> +    then:
>> +      properties:
>> +        reg:
>> +          maxItems: 1
>> +        reg-names:
>> +          items:
>> +            - const: pon
>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: qcom,pms405-pon
>> +    then:
>> +      properties:
>> +        reg:
>> +          maxItems: 1
>> +        reg-names:
>> +          items:
>> +            - const: pon
>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: qcom,pm8998-pon
>> +    then:
>> +      properties:
>> +        reg:
>> +          maxItems: 1
>> +        reg-names:
>> +          items:
>> +            - const: pon
> 
> No clue why you made three if statements. This is one if for all three
> variants.
> 
Sorry about that was not sure how to combine the if statements originally.
Found that you could do:

- if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,pm8916-pon
              - qcom,pms405-pon
              - qcom,pm8998-pon
    then:
     ...

I was wondering if for the "qcom,pmk8350-pon" compatible would you rather
have the if statement the way it is or have it follow the same pattern as
above i.e.

contains:
  const: qcom,pmk8350-pon

vs

contains:
  enum:
    - qcom,pmk8350-pon
>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: qcom,pmk8350-pon
>> +    then:
>> +      properties:
>> +        reg:
>> +          minItems: 1
>> +          maxItems: 2
>> +        reg-names:
>> +          minItems: 1
>> +          items:
>> +            - const: hlos
>> +            - const: pbs
>> +
>>  examples:
>>    - |
>>     #include <dt-bindings/interrupt-controller/irq.h>
> 
> 
> Best regards,
> Krzysztof

Thanks,
Anjelique



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