It has been reported at [1] the RNG HW on SM8450 is in fact a True Random Number Generator and no more Pseudo, document this by adding a new qcom,trng and the corresponding SoC specific sm8450 compatible. [1] https://lore.kernel.org/all/20230818161720.3644424-1-quic_omprsing@xxxxxxxxxxx/ Suggested-by: Om Prakash Singh <quic_omprsing@xxxxxxxxxxx> Suggested-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> Reviewed-by: Om Prakash Singh <quic_omprsing@xxxxxxxxxxx> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- .../devicetree/bindings/crypto/qcom,prng.yaml | 25 +++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/crypto/qcom,prng.yaml b/Documentation/devicetree/bindings/crypto/qcom,prng.yaml index bb42f4588b40..04ddcc0f7165 100644 --- a/Documentation/devicetree/bindings/crypto/qcom,prng.yaml +++ b/Documentation/devicetree/bindings/crypto/qcom,prng.yaml @@ -11,9 +11,14 @@ maintainers: properties: compatible: - enum: - - qcom,prng # 8916 etc. - - qcom,prng-ee # 8996 and later using EE + oneOf: + - enum: + - qcom,prng # 8916 etc. + - qcom,prng-ee # 8996 and later using EE + - items: + - enum: + - qcom,sm8450-trng + - const: qcom,trng reg: maxItems: 1 @@ -28,8 +33,18 @@ properties: required: - compatible - reg - - clocks - - clock-names + +allOf: + - if: + not: + properties: + compatible: + contains: + const: qcom,trng + then: + required: + - clocks + - clock-names additionalProperties: false -- 2.34.1
