Disable the CTI device of the camera block to prevent potential NoC errors
during AMBA bus device matching.

The clocks for the Qualcomm Debug Subsystem (QDSS) are managed by aoss_qmp
through a mailbox. However, the camera block resides outside the AP domain,
meaning its QDSS clock cannot be controlled via aoss_qmp.

Fixes: bf469630552a ("arm64: dts: qcom: qcs615: Add coresight nodes")
Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs615.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
index bb8b6c3ebd03..fc2ab750f2cd 100644
--- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
@@ -2461,6 +2461,9 @@ cti@6c13000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+
+			/* Not all required clocks can be enabled from the OS */
+			status = "fail";
 		};
 
 		cti@6c20000 {
-- 
2.34.1

On Wed, 11 Jun 2025 11:00:03 +0800, Jie Gan wrote:
> Disable the CTI device of the camera block to prevent potential NoC errors
> during AMBA bus device matching.
> 
> The clocks for the Qualcomm Debug Subsystem (QDSS) are managed by aoss_qmp
> through a mailbox. However, the camera block resides outside the AP domain,
> meaning its QDSS clock cannot be controlled via aoss_qmp.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: qcs615: disable the CTI device of the camera block
      commit: 1b7fc8a281cae9e3176584558a4ac551ce0f777d

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>

On 6/11/25 5:00 AM, Jie Gan wrote:
> Disable the CTI device of the camera block to prevent potential NoC errors
> during AMBA bus device matching.
> 
> The clocks for the Qualcomm Debug Subsystem (QDSS) are managed by aoss_qmp
> through a mailbox. However, the camera block resides outside the AP domain,
> meaning its QDSS clock cannot be controlled via aoss_qmp.
> 
> Fixes: bf469630552a ("arm64: dts: qcom: qcs615: Add coresight nodes")
> Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad