On 05/08/2024 06:11, Krishna Chaitanya Chundru wrote: >>> + >>> + qcom,nfts: >>> + $ref: /schemas/types.yaml#/definitions/uint8 >>> + description: >>> + Fast Training Sequence (FTS) is the mechanism that >>> + is used for bit and Symbol lock. >> >> What are the values? Why this is uint8? >> > These represents number of fast training sequence and doesn't have > any units and the maximum value for this is 0xFF only so we used > uint8. >> You described the desired Linux feature or behavior, not the actual >> hardware. The bindings are about the latter, so instead you need to >> rephrase the property and its description to match actual hardware >> capabilities/features/configuration etc. > ack. >> >>> + >>> +allOf: >>> + - $ref: /schemas/pci/pci-bus-common.yaml# >>> + - if: >>> + properties: >>> + compatible: >>> + contains: >>> + const: pci1179,0623 >>> + required: >>> + - compatible >> >> Why do you have entire if? You do not have multiple variants, drop. >> > The child nodes also referencing the qcom,qps615.yaml# node, I tried > to use this way to say "the below properties are for the required for > parent and optional for child". I don't understand how child device can be exactly the same as parent device. How does it look in terms of hardware? Pins and supplies? >>> + then: >>> + required: >>> + - vdd18-supply >>> + - vdd09-supply >>> + - vddc-supply >>> + - vddio1-supply >>> + - vddio2-supply >>> + - vddio18-supply >>> + - qcom,qps615-controller >>> + - reset-gpios >>> + >>> +patternProperties: >>> + "@1?[0-9a-f](,[0-7])?$": >>> + type: object >>> + $ref: qcom,qps615.yaml# >>> + additionalProperties: true >> >> Nope, drop pattern Properties or explain what is this. >> > the child nodes represent the downstream ports of the PCIe > switch which wants to use same properties that is why > I tried to use this pattern properties. Downstream port is not the same as device. Why downstream port has the same supplies? To which pins are they connected? Best regards, Krzysztof