[PATCH v3 1/5] dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Add support for glymur Gen5 x8 bifurcation mode

[Krzysztof Kozlowski]

On 20/04/2026 09:23, Qiang Yu wrote:
>>> It is not the same as the 5x4 PHY. In DT, we model three PHY nodes:
>>> phy_3a (1x4), phy_3b (1x4), and a separate phy_1x8 node for x8 mode.
>>
>> OK, that's what I wanted to hear. And that's what should not be done,
>>
>> You should not have a separate node for the same hardware. First, DTC
>> will give you a W=1 warning, although warning itself should be moved to
>> W=2.
>>
>> Second, the warning tells important story - same hardware is described
>> twice.
>>
>> You only need phy_3a and phy_3b, so only two in total.
> 
> We can keep only phy_3a and phy_3b, but still add new compatible
> qcom,glymur-qmp-gen5x8-pcie-phy in binding, right?


No, you cannot. You cannot create fake device nodes.

Best regards,
Krzysztof