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SubjectRe: [PATCH V2 3/4] dt-bindings: power: reset: qcom-pon: Convert qcom PON binding to yaml
On 2021-04-27 14:07, Sebastian Reichel wrote:
> Hi,
>
> On Tue, Apr 27, 2021 at 11:45:44AM +0530, skakit@codeaurora.org wrote:
>> Hi Sebastian,
>>
>> On 2021-04-09 13:48, skakit@codeaurora.org wrote:
>> > Hi Sebastian,
>> >
>> > On 2021-04-08 18:30, Sebastian Reichel wrote:
>> > > Hi,
>> > >
>> > > On Thu, Apr 08, 2021 at 05:01:08PM +0530, satya priya wrote:
>> > > > Convert qcom PON binding from .txt to .yaml format.
>> > > >
>> > > > Signed-off-by: satya priya <skakit@codeaurora.org>
>> > > > ---
>> > >
>> > > Thanks for doing this.
>> > >
>> > > > Changes in V2:
>> > > > - As per Rob's comments, converted the main PON binding and
>> > > > added in V2.
>> > > >
>> [...]
>> > > > + reg:
>> > > > + description: Specifies the physical address of the pon register
>> > >
>> > > That description is obvious and pointless. Instead add
>> > >
>> > > maxItems: 1
>> > >
>> >
>> > Okay.
>> >
>> > > > + pwrkey:
>> > > > + type: object
>> > > > + $ref: "../../input/qcom,pm8941-pwrkey.yaml#"
>> > > > +
>> > > > + resin:
>> > > > + type: object
>> > > > + $ref: "../../input/qcom,pm8941-pwrkey.yaml#"
>> > > > +
>> > > > +required:
>> > > > + - compatible
>> > > > + - reg
>> > > > +
>> > > > +additionalProperties: true
>> > >
>> > > Instead of allowing arbitrary properties, only valid modes
>> > > should be allowed. So drop additionalProperties and do this
>> > > instead:
>> > >
>> > > allOf:
>> > > - $ref: reboot-mode.yaml#
>> > >
>> > > unevaluatedProperties: false
>> > >
>> >
>> > Okay.
>>
>> I am not able to use 'allOf' to refer reboot-mode.yaml as some of the
>> properties do not match with reboot-mode.yaml properties. Can we use
>> oneOf
>> like below?
>>
>> oneOf:
>> - $ref: "reboot-mode.yaml#"
>> - $ref: "../../input/qcom,pm8941-pwrkey.yaml#"
>
> That does not make sense.
>
> The reference to reboot-mode.yaml is needed because it adds valid
> mode properties, so that you can set unevaluatedProperties to false.
> You need it at the root of the PON binding. They are not added to
> the required list, so it's fine if not all of them are used. Also
> there can (and usually is) more than one mode, so using oneOf is not
> ok.
>

Okay, but I am getting errors like below during make dtbs_check.

kernel/arch/arm64/boot/dts/qcom/sdm630-sony-xperia-ganges-kirin.dt.yaml:
pon@800: 'compatible', 'pwrkey', 'reg' do not match any of the regexes:
'^mode-.*$', 'pinctrl-[0-9]+'

As suggested I have added

allOf:
- $ref: reboot-mode.yaml#

at the root of binding and also added unevaluatedProperties: false

> Last but not least the pwrkey reference is needed to describe
> specific nodes (resin, pwrkey) and should not appear at the root
> of the PON binding.
>
>> Also, If I drop additionalProperties I am getting below error.
>>
>> kernel/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml:
>> 'additionalProperties' is a required property
>
> You need to add 'unevaluatedProperties: false'. It is basically
> the same as 'additionalProperties: false', but also accepts
> properties from the referenced bindings.
>
> Thanks,
>
> -- Sebastian

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