Re: [PATCH] arm64: dts: qcom: qcs615: disable the CTI device of the camera block

From: Jie Gan
Date: Tue May 27 2025 - 06:33:18 EST




On 5/27/2025 6:23 PM, Konrad Dybcio wrote:
On 5/27/25 3:52 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.

Which clock drives it then?

It's qcom,aoss-qmp.

clk_prepare->qmp_qdss_clk_prepare
https://elixir.bootlin.com/linux/v6.15-rc7/source/drivers/soc/qcom/qcom_aoss.c#L280

Thanks,
Jie


Konrad