a89565ae11
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@quicinc.com/. Change-Id: I8f26201cebefd5c717fed6c9d50ebee781b1fc75 Suggested-by: Om Prakash Singh <quic_omprsing@quicinc.com> Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Om Prakash Singh <quic_omprsing@quicinc.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Git-commit: 63b299a18694b89d6c814e0d86230d09542bed4c Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git Signed-off-by: PRANAY BHARGAV BHAVARAJU <quic_pbhavara@quicinc.com>
59 lines
1015 B
YAML
59 lines
1015 B
YAML
# SPDX-License-Identifier: GPL-2.0-only
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/crypto/qcom,prng.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Pseudo Random Number Generator
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maintainers:
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- Vinod Koul <vkoul@kernel.org>
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properties:
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compatible:
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oneOf:
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- enum:
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- qcom,prng # 8916 etc.
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- qcom,prng-ee # 8996 and later using EE
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- items:
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- enum:
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- qcom,sm8450-trng
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- const: qcom,trng
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: core
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required:
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- compatible
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- reg
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allOf:
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- if:
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not:
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properties:
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compatible:
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contains:
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const: qcom,trng
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then:
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required:
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- clocks
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- clock-names
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additionalProperties: false
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examples:
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- |
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rng@f9bff000 {
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compatible = "qcom,prng";
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reg = <0xf9bff000 0x200>;
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clocks = <&clk 125>;
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clock-names = "core";
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};
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