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 <stephan.gerhold@linaro.org>
Link: https://lore.kernel.org/r/20250212-bam-dma-fixes-v1-2-f560889e65d8@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 9c809fc5fa45a98ff5441a0b6809931588897243..419df72cd04b0c328756fdc484f4e46b6c325412 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -5283,6 +5283,8 @@
                        interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
                        #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>,