From feadf31790331977bc368f9536bca28aa9e456f1 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Wed, 12 Feb 2025 18:03:48 +0100 Subject: [PATCH] arm64: dts: qcom: sm8450: Add missing properties for cryptobam commit 0fe6357229cb15a64b6413c62f1c3d4de68ce55f upstream. num-channels and qcom,num-ees are required for BAM nodes without clock, because the driver cannot ensure the hardware is powered on when trying to obtain the information from the hardware registers. Specifying the node without these properties is unsafe and has caused early boot crashes for other SoCs before [1, 2]. Add the missing information from the hardware registers to ensure the driver can probe successfully without causing crashes. [1]: https://lore.kernel.org/r/CY01EKQVWE36.B9X5TDXAREPF@fairphone.com/ [2]: https://lore.kernel.org/r/20230626145959.646747-1-krzysztof.kozlowski@linaro.org/ Cc: stable@vger.kernel.org Fixes: b92b0d2f7582 ("arm64: dts: qcom: sm8450: add crypto nodes") Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20250212-bam-dma-fixes-v1-2-f560889e65d8@linaro.org Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/qcom/sm8450.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi index 3b4d78823008..c1ed39cac8c5 100644 --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi @@ -4233,6 +4233,8 @@ interrupts = ; #dma-cells = <1>; qcom,ee = <0>; + qcom,num-ees = <4>; + num-channels = <16>; qcom,controlled-remotely; iommus = <&apps_smmu 0x584 0x11>, <&apps_smmu 0x588 0x0>,