[PATCH] arm64: dts: qcom: sm8750: Fix iommu stream ID masks for CDSP compute CBs
From: Vinayak Katoch
Date: Thu Oct 29 2026 - 10:46:34 EST
The stream ID masks of compute-cb@12 and compute-cb@14 are wrong, so
these two context banks fail to probe.
Fix the masks:
- compute-cb@12: SID 0x0c2c, mask 0x20 -> 0x0
- compute-cb@14: SID 0x0c0e, mask 0x20 -> 0x40
Fixes: 58471055ae76 ("arm64: dts: qcom: sm8750: Add CDSP")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Vinayak Katoch <vinayak.katoch@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8750.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index cf947acc5760..de9d9bf3ca4b 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -6497,7 +6497,7 @@ compute-cb@12 {
compatible = "qcom,fastrpc-compute-cb";
reg = <12>;
iommus = <&apps_smmu 0x196c 0x0>,
- <&apps_smmu 0x0c2c 0x20>,
+ <&apps_smmu 0x0c2c 0x0>,
<&apps_smmu 0x0c0c 0x40>,
<&apps_smmu 0x19cc 0x0>;
dma-coherent;
@@ -6518,7 +6518,7 @@ compute-cb@14 {
compatible = "qcom,fastrpc-compute-cb";
reg = <14>;
iommus = <&apps_smmu 0x196e 0x0>,
- <&apps_smmu 0x0c0e 0x20>,
+ <&apps_smmu 0x0c0e 0x40>,
<&apps_smmu 0x19ce 0x0>;
dma-coherent;
};
---
base-commit: a39c950806213f6861d00f90729acaaa21f2d95a
change-id: 20261029-sm8750-fix-sid-masks-f27747b63ab7
Best regards,
--
Vinayak Katoch <vinayak.katoch@xxxxxxxxxxxxxxxx>