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[23.128.96.32]) by mx.google.com with ESMTPS id 126-20020a630084000000b00553813c2df0si798830pga.513.2023.10.03.00.11.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Oct 2023 00:11:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=QLsmYww4; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id 28954801E68C; Tue, 3 Oct 2023 00:10:59 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231184AbjJCHKg (ORCPT + 18 others); Tue, 3 Oct 2023 03:10:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230359AbjJCHKe (ORCPT ); Tue, 3 Oct 2023 03:10:34 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6965FAF for ; Tue, 3 Oct 2023 00:10:29 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id 5b1f17b1804b1-406402933edso5518855e9.2 for ; Tue, 03 Oct 2023 00:10:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696317028; x=1696921828; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=bWSoJPhCIlN0cC4i2L0NWdvzE2l13BuJshGU4nRAwjo=; b=QLsmYww4Qg3ptWMRpcL6sdk6DBNGBGvZa7L/xuX//J0OdjwjHHB+W/qqvNtSoUvKk4 LZMyedpltPTHDK46VWU9qKk7iPc64f/NpEbOtAEjn/bYx94toRKMygM3R0AdSzjt4du7 lD2jqVe/7iRv9bhINz3HRUpra132+eIpe5vozguMaxXc8CnthnMDzPb+btTpMD4jNVyn /yNUmnijOwcQXl/md5/NZQ/cT+sFbc405323iQxD1LZxI/Trfvt52Wd4zJsxkrGAhhmK p/Ix1N9gv08sx7u9i/BjpEeo5uuxM48Sxp3AU4rkYFcBXTq2mkRggqT9Odl8fKYdG8MU +i6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696317028; x=1696921828; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bWSoJPhCIlN0cC4i2L0NWdvzE2l13BuJshGU4nRAwjo=; b=Xs9yTcjVWaX+CONJEOFqPVEORpK4wFis4X7RA2JnWkoxuKKHziJhn1LcLAITSVGfmP 4d+terGuYojXf2DIs4oIjYIIgcQVI7Jw5F9lf8tcK6grUko5qcWWz1xQQfVsicXseVCk PJeyP08GJnspCH+6vs8DIEe4UONWlnkmIfLxPnLLKrPXj12O4wFBqWckmeZq1riJmE/Z SjlO0BmurlXuMC+NCebus82Hlx0IyHvQ2cA7eRKjMe9WLDZrseg8LkQPO6uLV+q4nBno b/4JC8i8U2HErDisekOqxV6WiR+y+7Kcz58UOQ8l9FC/7AIckEoJ385sF3RSw6Sw27Tr +Bsw== X-Gm-Message-State: AOJu0YwLIYFEIBkqEhS5buMhqVOLEPGNKswB4uCuJZfbPcOpOCtelPiK WvQ771L+bUQZRuW7JiP1tnlDyw== X-Received: by 2002:a05:600c:2303:b0:405:dbe2:df10 with SMTP id 3-20020a05600c230300b00405dbe2df10mr11472017wmo.35.1696317027775; Tue, 03 Oct 2023 00:10:27 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id k2-20020a05600c1c8200b004065d72ab19sm8746652wms.0.2023.10.03.00.10.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Oct 2023 00:10:27 -0700 (PDT) From: Neil Armstrong Date: Tue, 03 Oct 2023 09:10:19 +0200 Subject: [PATCH v4 1/5] dt-bindings: crypto: qcom,prng: document that RNG on SM8450 is a TRNG MIME-Version: 1.0 Message-Id: <20231003-topic-sm8550-rng-v4-1-255e4d0ba08e@linaro.org> References: <20231003-topic-sm8550-rng-v4-0-255e4d0ba08e@linaro.org> In-Reply-To: <20231003-topic-sm8550-rng-v4-0-255e4d0ba08e@linaro.org> To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Herbert Xu , "David S. Miller" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul Cc: linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong , Om Prakash Singh X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1743; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=8CwyDjTKBT82oN5QeEf44nn7stnpG4wjL1jNGz85BlQ=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBlG75fnBvRRVRmH6ri56CNjn4g9zIjD1YBZR8zzUKs BCJ5GDWJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZRu+XwAKCRB33NvayMhJ0WkvD/ 0XVBX3vNDxd0zFxw8kZ4Zp6w9qMu8h2j3ZsJtXBqefv4yQ3oKtndrJoqRlfqgD6hfj03u0IRwjbkwC YzwGOVAf2UqSwUgx1CynzxHUYDYwZc+OCBDAHbfRaBUiDhmPXjgVdI9v8xouMk7BK5KaGiMspjQ07B NUtmJMTdYlqUfizUlyfQLmLaqkGXSwyMqy7GxTbibx/d9ug/3j2SBEKJ5Cr/Q5DuR2StXh8jh7lLNV z/y9D/Y5z3PKYltC11W+Q94XXB64ZXcLH8+3ZctIXDflCdP2XvFd9+x+jhxbuwOpn4a4wBUK01fqFl rSCRB/CPq6AXtsxdeef53kDt4AFR8OB+G89oPn4HCA7oZX/Fb8G8Jl/iIm1T1uyBrqfQCLt1EQew0k M3lAHdkb7LwuhACRzfFsD897dLN3CjVL22Z12cgxzLfJXNHm01/eypnizTg2Y1qcMjSE6+sdRIgkkN nM8PC1hwd2/DlLOEtlq1alnIXJjqWXRcghW6kUE7SghUb1a4jfxiiMwyeSGfStb6IZaVHZ39TEw3wX AVbJkXYHls2S1nH+fri2LlbYSEnBGShAnQg0jPnuzVLLgUrUo0qeyiYkeMpR5OnaqSv5+hYsoize1r GpukhE83FsjPNgpHRBM6+03pNbmfo1riWH1M6zaQUtQeAacRPgqmLRNYsujg== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Tue, 03 Oct 2023 00:10:59 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1778717363491382157 X-GMAIL-MSGID: 1778717363491382157 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/ Suggested-by: Om Prakash Singh Suggested-by: Konrad Dybcio Reviewed-by: Om Prakash Singh Signed-off-by: Neil Armstrong Reviewed-by: Krzysztof Kozlowski --- .../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