Re: [PATCH v3 1/6] dt-bindings: PCI: Add binding for qps615

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On Mon, Dec 23, 2024 at 10:18:24PM +0530, Krishna Chaitanya Chundru wrote:
> 
> 
> On 12/11/2024 11:30 AM, Manivannan Sadhasivam wrote:
> > On Wed, Dec 04, 2024 at 03:25:59PM -0600, Bjorn Helgaas wrote:
> > > On Tue, Nov 12, 2024 at 08:31:33PM +0530, Krishna chaitanya chundru wrote:
> > > > Add binding describing the Qualcomm PCIe switch, QPS615,
> > > > which provides Ethernet MAC integrated to the 3rd downstream port
> > > > and two downstream PCIe ports.
> > > 
> > > > +$defs:
> > > > +  qps615-node:
> > > > +    type: object
> > > > +
> > > > +    properties:
> > > > +      qcom,l0s-entry-delay-ns:
> > > > +        description: Aspm l0s entry delay.
> > > > +
> > > > +      qcom,l1-entry-delay-ns:
> > > > +        description: Aspm l1 entry delay.
> > > 
> > > To match spec usage:
> > > s/Aspm/ASPM/
> > > s/l0s/L0s/
> > > s/l1/L1/
> > > 
> > > Other than the fact that qps615 needs the driver to configure these,
> > > there's nothing qcom-specific here, so I suggest the names should omit
> > > "qcom" and include "aspm".
> > > 
> > 
> > In that case, these properties should be documented in dt-schema:
> > https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/pci/pci-bus-common.yaml
> > 
> > - Mani
> I am fine to move to pci-bus-common.yaml but currently these are being used
> by qps615 only I hope that is fine.

With bindings there is no such thing as "currently". Once defined they
become an ABI and must not be changed.

-- 
With best wishes
Dmitry




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