From patchwork Sun Aug 27 03:27:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 717551 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 7F5CDC83F17 for ; Sun, 27 Aug 2023 03:29:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229944AbjH0D2j (ORCPT ); Sat, 26 Aug 2023 23:28:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230001AbjH0D2L (ORCPT ); Sat, 26 Aug 2023 23:28:11 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37D0DCD2 for ; Sat, 26 Aug 2023 20:28:08 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id 2adb3069b0e04-50078eba7afso3406462e87.0 for ; Sat, 26 Aug 2023 20:28:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693106886; x=1693711686; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JDcX6nc3xf4NnNrUKfcUNu5SXO4YsMvuQIo9lBU68H8=; b=HR8yZWX1d5bxSySO0g4a67Ipugd3uqpw7d1qrV0rbEt5V0WLp2iS7E+4MRhRclbzYv BfIzctwAb3FsfMgfFxsr+h8k0MxPwdhgr1vBRk4+2OE+NvxIZw6/BPG69ucG3ckp+vRD YAMqzAUwA0z6ptUOfVoT4LTpi2vHJiUIkJ3ivVdyxrQs+Sn+z9RWLfopbAHonlHxwlWm maNv1zx+il5iCar80F422rCkXfn+D1NaY7wiQ7O/SI1Z0G72KwpJC6wFFg9jdKY8CVD3 dwMxD7Ky+pQWFjkNyaV7Xf6wyd+ZGbdrAUNTOMjIpC8MfAJg56uSTAE+RA5pLT5lqY53 oa8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693106886; x=1693711686; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JDcX6nc3xf4NnNrUKfcUNu5SXO4YsMvuQIo9lBU68H8=; b=h1Dt4NG35jC3ncinSYkqdCvYl5yKwVz5zX2x6WaFj1quCt6VjZKScd+Eq/kMV8ETXo CxeQI4yuFbTOfP5tPG5HwsiGEk53VAWOOuZkLmZFsCmWykZxNRvW2WXEIhRnTVv7Pami v6aDb58xylV3aE2XrktQHBh7WkUOp29/Ib12DOFlnCqsUdsOVdhPo2mEyUe/f67ttk30 7jSX+CtVN89z5FoMC8rReeNLx8icQlWwuz3dY4JCe8hL8zZjqdh5ASNcV0yLXMBmSS2M OxopwGYAnL/1JaR7mRRs+/ekN8GlBA5vzwhbeB5OLlG767QO8LbsACvqquJOOHmES2zM dltg== X-Gm-Message-State: AOJu0YyHvwkSuicn87xaEWzSWn9TKt2eK0fahA1rb/2kLlBADKgwpTuY 9qHNNafxZXnUutluzoEJ8txNVg== X-Google-Smtp-Source: AGHT+IGux7+fe7WeUPSp78YK1YySxewfhDKbFzq71mjdHBbSG7uE6yCErWRI/u5u/sIYn8TIhYa6wA== X-Received: by 2002:a19:9158:0:b0:500:a2d3:3e65 with SMTP id y24-20020a199158000000b00500a2d33e65mr5142697lfj.23.1693106886272; Sat, 26 Aug 2023 20:28:06 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id w7-20020ac254a7000000b004fb99da37e3sm955709lfk.220.2023.08.26.20.28.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Aug 2023 20:28:05 -0700 (PDT) From: Dmitry Baryshkov To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Konrad Dybcio , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd , Michael Turquette , "Rafael J. Wysocki" , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold Subject: [PATCH v4 2/6] cpufreq: qcom-nvmem: create L2 cache device Date: Sun, 27 Aug 2023 06:27:59 +0300 Message-Id: <20230827032803.934819-3-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230827032803.934819-1-dmitry.baryshkov@linaro.org> References: <20230827032803.934819-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Scaling the frequencies on some of Qualcomm Krait platforms (e.g. APQ8064) also requires scaling of the L2 cache frequency. As the l2-cache device node is places under /cpus/ path, it is not created by default by the OF code. Create corresponding device here. Signed-off-by: Dmitry Baryshkov --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c index 84d7033e5efe..f4c196ba4432 100644 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -377,6 +378,7 @@ static int __init qcom_cpufreq_init(void) { struct device_node *np = of_find_node_by_path("/"); const struct of_device_id *match; + unsigned int cpu; int ret; if (!np) @@ -387,6 +389,25 @@ static int __init qcom_cpufreq_init(void) if (!match) return -ENODEV; + for_each_possible_cpu(cpu) { + struct device *dev = get_cpu_device(cpu); + struct device_node *cache; + struct platform_device *pdev; + + cache = of_find_next_cache_node(dev->of_node); + if (!cache) + continue; + + if (of_device_is_compatible(cache, "qcom,krait-l2-cache")) { + pdev = of_platform_device_create(cache, NULL, NULL); + if (IS_ERR(pdev)) + pr_err("%s: %pe, failed to create L2 cache node\n", __func__, pdev); + /* the error is not fatal */ + } + + of_node_put(cache); + } + ret = platform_driver_register(&qcom_cpufreq_driver); if (unlikely(ret < 0)) return ret;