On 30/11/2023 12:15, Jinlong Mao wrote: > > > On 11/30/2023 4:55 PM, Krzysztof Kozlowski wrote: >> On 29/11/2023 15:38, Mao Jinlong wrote: >>> The inport of funnel@3023000 connects to a source which is not supported >>> in current linux kernel. Remove the device tree node of funnel@3023000 >>> to fix the warning. It will be added once the driver support to the >>> source is added to linux kernel. >> >> Thanks for the changes, but that's not correct reason to remove DTS >> code. What kernel supports or not, should be irrelevant for the DTS. DTS >> for example is used in other projects - did you check if they have the >> same issues? Anyway, DTS describes the hardware, so how current kernel >> support defines what is and what is not in the hardware? >> >> >> Best regards, >> Krzysztof > > Hi Krzysztof, > > The funnel dt node must have in-ports node. It is to describe the input > connection of funnel HW. But there is no dt_binding doc to describe the > DT node of the HW connected to funnel@3023000. So remove the funnel to > solve the warning as of now. The funnel will be added back once driver > and dt_binding are added for the HW. > > Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml Why we cannot add now the binding for the connected hardware? It's not really related to the driver. Best regards, Krzysztof
