On Mon, 04 Dec 2023 11:21:19 +0100, Stephan Gerhold wrote:
The blsp_dma controller is shared between the different subsystems, which is why it is already initialized by the firmware. We should not reinitialize it from Linux to avoid potential other users of the DMA engine to misbehave.
In mainline this can be described using the "qcom,controlled-remotely" property. In the downstream/vendor kernel from Qualcomm there is an opposite "qcom,managed-locally" property. This property is *not* set for the qcom,sps-dma@7884000 so adding "qcom,controlled-remotely" upstream matches the behavior of the downstream/vendor kernel.
[...]
Applied, thanks!
[1/2] arm64: dts: qcom: msm8916: Make blsp_dma controlled-remotely commit: 7c45b6ddbcff01f9934d11802010cfeb0879e693 [2/2] arm64: dts: qcom: msm8939: Make blsp_dma controlled-remotely commit: 4bbda9421f316efdaef5dbf642e24925ef7de130
Best regards,