From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D542EE4993 for ; Wed, 23 Aug 2023 07:55:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233628AbjHWHzX (ORCPT ); Wed, 23 Aug 2023 03:55:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232073AbjHWHzX (ORCPT ); Wed, 23 Aug 2023 03:55:23 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 652FECD0 for ; Wed, 23 Aug 2023 00:55:21 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-3fef56f7223so20401835e9.3 for ; Wed, 23 Aug 2023 00:55:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692777320; x=1693382120; h=content-transfer-encoding:in-reply-to:organization:autocrypt :references:cc:to:content-language:subject:reply-to:from:user-agent :mime-version:date:message-id:from:to:cc:subject:date:message-id :reply-to; bh=LRneTZRUa8cNy0srxSHuZvRzwItRI2yXoW2UtKvjV84=; b=zMi9Kg6JnKkiOCApN1UHZOgHFh2i6WbZwKiWfNMJhTP0YcLnPhqjYtGoHsa2KL9uCl ll1PppstbMvSt6v+N12uykxm05dWXOvpbJyTeWdZbscJ6r/Yto28AY9VO4WuVDmQFy/g hji+USfZejzfd3XLL4J8I+izrbgywVakeg++lhsfF157OFcA6OExoaoXSQu2nd4BK3LG CkVMSVA0Qa0r1FifISz8+3bi7xcWNIImgvxtjTTvr+MHDHpJykdDs2yskkvi9VnFEduN WF4ib2gwSBm9gL5ba8mPo2KB7yIvhk5uJXyV/k5cdqVJSSixxhd8qom0/WtP6fM3Nf++ lmNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692777320; x=1693382120; h=content-transfer-encoding:in-reply-to:organization:autocrypt :references:cc:to:content-language:subject:reply-to:from:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=LRneTZRUa8cNy0srxSHuZvRzwItRI2yXoW2UtKvjV84=; b=ZfPWvdjb9sKND8gzYOzp4kEwSev9s/TertO5BYzRrzRM9aMXuu37dMSLVzWhpJksgy v8X68w0cP1NenTjH3XDL9Zz1aBP2LhEy9WAB7mKATyxwabb6Ipp1HvygbFX6WxsHqc4A H3zMi+Orw/zkC7ZkCQY3CZmcCk3jTnVKJ455WOQl9Z4BGrF/hBTvXpxT3pArZg3qdwLK 4SkkGzBaGdmuZtiT1gh3HSPKJjQTiSbu4fOa1Gkpn7Mas42cI5ddc3/03cd+P5+qREv3 L8xHwOZ16CKE1g8meBjw2jH7oT26FcVU/4AWbKJPp1/ZZSXCViF0OAcO5SYnkj/6IoTk lz2Q== X-Gm-Message-State: AOJu0YxH8Q7sxDgERhGHQwvtYM2JqCL7CXcc4qiE8jjYaY/JqGVrNUs9 gtKhPwjdwNNbR79EM2F2vd3ulQcj/XwIZjryKkl93A== X-Google-Smtp-Source: AGHT+IFzUCxBjFJpacEZ0cCouJ1S4MFuI4b7FnwIj+Snn5zburmfTxe9ZoVlX4tYEuogvDUfQBBXWw== X-Received: by 2002:a05:600c:22d4:b0:3fc:f9c:a3ed with SMTP id 20-20020a05600c22d400b003fc0f9ca3edmr9798385wmg.22.1692777319859; Wed, 23 Aug 2023 00:55:19 -0700 (PDT) Received: from ?IPV6:2a01:e0a:cad:2140:c457:5132:4849:b9d9? ([2a01:e0a:cad:2140:c457:5132:4849:b9d9]) by smtp.gmail.com with ESMTPSA id n4-20020a5d4204000000b0031c5dda3aedsm5749631wrq.95.2023.08.23.00.55.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Aug 2023 00:55:19 -0700 (PDT) Message-ID: Date: Wed, 23 Aug 2023 09:55:17 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: neil.armstrong@linaro.org Subject: Re: [PATCH 1/2] dt-bindings: crypto: qcom,prng: document SM8550 Content-Language: en-US, fr To: Om Prakash Singh , Konrad Dybcio , Andy Gross , Bjorn Andersson , 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 References: <20230822-topic-sm8550-rng-v1-0-8e10055165d1@linaro.org> <20230822-topic-sm8550-rng-v1-1-8e10055165d1@linaro.org> <8479869b-9984-41e3-9812-c7f5727cfd2c@linaro.org> <26bae022-c114-4871-8715-73d7e8aeaa52@linaro.org> Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro Developer Services In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi, On 23/08/2023 02:10, Om Prakash Singh wrote: > > > On 8/22/2023 9:34 PM, Konrad Dybcio wrote: >> On 22.08.2023 16:54, Om Prakash Singh wrote: >>> PRNG Block on most of newer target from Qualcomm have some configuration where clock is configured by security firmware. >>> >>> Adding separate compatible string for each platform is overhead. >>> >>> We need to introduce common compatible string that can be used for all platforms with same configuration. >>> >>> I would suggest to use "qcom,rng-ee" for newer platform, dropping "p" also signifies it is not a Pseudo Random Number Generator. >> Please reply inline and don't top-post. >> >> >> Is this what you're trying to say? >> >> 1. sort out the clock requirements for designs where Linux manages it >>     vs where the FW does so > >> 2. introduce a new compatible for SoCs implementing a TRNG >> >> 3. for SoCs in 2., register the TRNG as a hwrng device > > Yes to all I can send a proposal, but that means writing a new driver for this compatible in drivers/char/hw_random/ right ? Neil > >> >> >> ? >> >> Konrad > > Thanks, > Om