[PATCH v5 3/5] arm64: dts: qcom: kaanapali: fix traceNoC probe issue

[Jie Gan]

The traceNoC node used the "qcom,coresight-tnoc", "arm,primecell"
compatible, which places the device on the AMBA bus. To bind an AMBA
device, the bus first reads the peripheral and component ID registers
(PID/CID) at the top of the device's register block and matches them
against the primecell ID. On this platform the traceNoC does not expose
a valid CID in that register, so the read never yields the expected
primecell value, the AMBA match fails, and the device is left stuck in
deferred probe indefinitely.

Drop the "arm,primecell" entry and use the standalone
"qcom,coresight-tnoc" compatible, which binds via the platform driver by
compatible string and does not rely on reading the primecell ID register
at all. This lets the device probe on hardware that does not expose a
readable CID, while remaining an Aggregator TNOC that retains ATID
functionality.

Fixes: f73959d86c15 ("arm64: dts: qcom: kaanapali: add coresight nodes")
Signed-off-by: Jie Gan <jie.gan at oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/kaanapali.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
index 7aa9653bd456..5d0e7e8c2e58 100644
--- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
+++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
@@ -5004,7 +5004,7 @@ tpdm_pcie_rscc_out: endpoint {
 		};
 
 		tn at 111b8000 {
-			compatible = "qcom,coresight-tnoc", "arm,primecell";
+			compatible = "qcom,coresight-tnoc";
 			reg = <0x0 0x111b8000 0x0 0x4200>;
 
 			clocks = <&aoss_qmp>;

-- 
2.34.1