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| author | Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> | 2025-12-29 14:57:35 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-01-05 19:49:14 +0300 |
| commit | 1c6192ec9c4ab8bdb7b2cf8763b7ef7e38671ffe (patch) | |
| tree | 7c6de88bc548dac974e99795e2f9631e09ef5eb6 | |
| parent | 6691966f4afc06c674b7679a772b7423cd16c545 (diff) | |
| download | linux-1c6192ec9c4ab8bdb7b2cf8763b7ef7e38671ffe.tar.xz | |
arm64: dts: qcom: sm8750: Fix BAM DMA probing
Bindings always required "qcom,num-ees" and "num-channels" properties,
as reported by dtbs_check:
sm8750-mtp.dtb: dma-controller@1dc4000 (qcom,bam-v1.7.4): 'anyOf' conditional failed, one must be fixed:
'qcom,powered-remotely' is a required property
'num-channels' is a required property
'qcom,num-ees' is a required property
'clocks' is a required property
'clock-names' is a required property
However since commit 5068b5254812 ("dmaengine: qcom: bam_dma: Fix DT
error handling for num-channels/ees") missing properties are actually
fatal and BAM does not probe:
bam-dma-engine 1dc4000.dma-controller: num-channels unspecified in dt
bam-dma-engine 1dc4000.dma-controller: probe with driver bam-dma-engine failed with error -22
Fixes: eeb0f3e4ea67 ("arm64: dts: qcom: sm8750: Add QCrypto nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251229115734.205744-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/sm8750.dtsi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi index 8a471b2349be..0a6f2a449c20 100644 --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi @@ -2088,6 +2088,8 @@ <&apps_smmu 0x481 0>; qcom,ee = <0>; + qcom,num-ees = <4>; + num-channels = <20>; qcom,controlled-remotely; }; |