Re: [PATCH v3 3/5] arm64: dts: qcom: kaanapali: fix traceNoC probe issue

[Konrad Dybcio]

On 6/30/26 12:36 PM, Jie Gan wrote:
> The traceNoC node used the "qcom,coresight-tnoc", "arm,primecell"
> compatible, which places the device on the AMBA bus. The AMBA peripheral
> ID probing fails on this platform, so the device never probes.

An interested reader would immediately expect an answer to why that's
the case

> Switch the node to the standalone "qcom,coresight-agtnoc" compatible.
> Dropping "arm,primecell" makes the device probe through the platform
> driver instead of the AMBA bus, which resolves the probe failure while
> keeping it an Aggregator TNOC that retains ATID functionality.

This describes OS behavior. Move your message towards the other
compatible not depending on reading that ID register.

Konrad