linux-kernel - [PATCH v2 2/7] Revert "arm64: dts: qcom: sm8450: Add PRNG"

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Message-Id: <20230824-topic-sm8550-rng-v2-2-dfcafbb16a3e@linaro.org>
Date:   Thu, 24 Aug 2023 13:33:21 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Om Prakash Singh <quic_omprsing@...cinc.com>
Subject: [PATCH v2 2/7] Revert "arm64: dts: qcom: sm8450: Add PRNG"

This reverts commit 76a6dd7bfcbb ("arm64: dts: qcom: sm8450: Add PRNG"),
since the RNG HW on the SM8450 SoC is in fact a True Random Number Generator,
a more appropriate compatible should be instead as reported at [1].

[1] https://lore.kernel.org/all/20230818161720.3644424-1-quic_omprsing@quicinc.com/

Suggested-by: Om Prakash Singh <quic_omprsing@...cinc.com>
Suggested-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 2a60cf8bd891..6ae64059cea5 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -1738,11 +1738,6 @@ spi14: spi@...000 {
 			};
 		};
 
-		rng: rng@...3000 {
-			compatible = "qcom,sm8450-prng-ee", "qcom,prng-ee";
-			reg = <0 0x010c3000 0 0x1000>;
-		};
-
 		pcie0: pci@...0000 {
 			compatible = "qcom,pcie-sm8450-pcie0";
 			reg = <0 0x01c00000 0 0x3000>,

-- 
2.34.1