On 6/13/25 12:37 AM, André Apitzsch via B4 Relay wrote:
> From: André Apitzsch <g...@apitzsch.eu>
>
> 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 and qcom,sps-dma@7ac4000 [1] so adding
> "qcom,controlled-remotely" upstream matches the behavior of the
> downstream/vendor kernel.
>
> Adding this fixes booting Longcheer L9360.
>
> [1]:
> https://git.codelinaro.org/clo/la/kernel/msm-3.10/-/blob/LA.BR.1.3.7.c26/arch/arm/boot/dts/qcom/msm8976.dtsi#L1149-1163
>
> Signed-off-by: André Apitzsch <g...@apitzsch.eu>
> ---
Fixes: 0484d3ce0902 ("arm64: dts: qcom: Add DTS for MSM8976 and MSM8956 SoCs")
Reviewed-by: Konrad Dybcio <konrad.dyb...@oss.qualcomm.com>
Konrad
