[PATCH v2 2/2] arm64: dts: qcom: kaanapali: fix traceNoC probe issue

Leo Yan leo.yan at arm.com
Wed Jun 24 07:25:48 PDT 2026


On Wed, Jun 24, 2026 at 05:49:26PM +0800, Jie Gan wrote:
> The AMBA bus attempts to read the CID/PID of a device before invoking
> its probe function if the arm,primecell-periphid property is absent.
> This causes a deferred probe issue for the TraceNoC device, as the
> CID/PID cannot be read from the periphid register.
> Add the arm,primecell-periphid property to bypass the AMBA bus
> check and resolve the probe issue.

tnoc.c registers both an AMBA driver and a platform driver. Shouldn't it
be registered as a platform device instead?

Thanks,
Leo



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