From: André Apitzsch Date: Sun, 15 Jun 2025 20:35:03 +0000 (+0200) Subject: arm64: dts: qcom: msm8976: Make blsp_dma controlled-remotely X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76270a18dbdf0bb50615f1b29d2cae8d683da01e;p=thirdparty%2Flinux.git arm64: dts: qcom: msm8976: Make blsp_dma controlled-remotely 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 Fixes: 0484d3ce0902 ("arm64: dts: qcom: Add DTS for MSM8976 and MSM8956 SoCs") Reviewed-by: Konrad Dybcio Signed-off-by: André Apitzsch Link: https://lore.kernel.org/r/20250615-bqx5plus-v2-1-72b45c84237d@apitzsch.eu Signed-off-by: Bjorn Andersson --- diff --git a/arch/arm64/boot/dts/qcom/msm8976.dtsi b/arch/arm64/boot/dts/qcom/msm8976.dtsi index e2ac2fd6882fc..2a30246384700 100644 --- a/arch/arm64/boot/dts/qcom/msm8976.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8976.dtsi @@ -1331,6 +1331,7 @@ clock-names = "bam_clk"; #dma-cells = <1>; qcom,ee = <0>; + qcom,controlled-remotely; }; blsp1_uart1: serial@78af000 { @@ -1451,6 +1452,7 @@ clock-names = "bam_clk"; #dma-cells = <1>; qcom,ee = <0>; + qcom,controlled-remotely; }; blsp2_uart2: serial@7af0000 {