Re: [PATCH v1 1/3] dt-binding: pci: add JH7110 PCIe dt-binding documents.

From: Minda Chen
Date: Thu Apr 06 2023 - 23:46:02 EST




On 2023/4/7 2:35, Conor Dooley wrote:
> On Thu, Apr 06, 2023 at 08:24:55PM +0200, Krzysztof Kozlowski wrote:
>> On 06/04/2023 13:11, Minda Chen wrote:
>> > +
>> > + interrupt-controller:
>> > + type: object
>> > + properties:
>> > + '#address-cells':
>> > + const: 0
>> > +
>> > + '#interrupt-cells':
>> > + const: 1
>> > +
>> > + interrupt-controller: true
>> > +
>> > + required:
>> > + - '#address-cells'
>> > + - '#interrupt-cells'
>> > + - interrupt-controller
>> > +
>> > + additionalProperties: false
>> > +
>> > +required:
>> > + - reg
>> > + - reg-names
>> > + - "#interrupt-cells"
>>
>> Keep consistent quotes - either ' or "
>>
>> Are you sure this is correct? You have interrupt controller as child node.
>
> I know existing stuff in-tree is far from a guarantee that it'll be
> right, but this does at least follow what we've got for PolarFire SoC:
> Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
>
> Both PLDA and both RISC-V w/ a PLIC as the interrupt controller, so in
> similar waters.
> This note existed in the original text form binding of the Microchip
> PCI controller:
> | +NOTE:
> | +The core provides a single interrupt for both INTx/MSI messages. So,
> | +create an interrupt controller node to support 'interrupt-map' DT
> | +functionality. The driver will create an IRQ domain for this map, decode
> | +the four INTx interrupts in ISR and route them to this domain.
>
> Given the similarities, I figure the same requirement applies here too.
> Minda?
>
> Cheers,
> Conor.

Yes, Thanks very much.