From patchwork Wed Jan 11 20:01:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 641401 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 1324EC46467 for ; Wed, 11 Jan 2023 20:05:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239666AbjAKUF1 (ORCPT ); Wed, 11 Jan 2023 15:05:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238770AbjAKUFD (ORCPT ); Wed, 11 Jan 2023 15:05:03 -0500 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9725843DA6 for ; Wed, 11 Jan 2023 12:01:34 -0800 (PST) Received: by mail-lf1-x130.google.com with SMTP id y25so25191150lfa.9 for ; Wed, 11 Jan 2023 12:01:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; 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=UcTrQNFFbWCL7GgAo7RNP0TzY01GvFcQgkQKLT8ew64=; b=GvnUTovdSaH2y/t2hZgjAMqhy0bL8GpaM2GmZ7CRWjrVpGkVO7YZGCrV2S0bH5/x4R h2YAWuD6xrgAZBG+j+7Dhjb9nmz+YSdRgkUgjApy2zaz+uJJu5Vd0YRm+WIONodwtRpE 7qMrgDab9BAKeROCPZfv2Ty5Tgic/tLqewdIJDGtBAjxLyuaEi8xa/5Y7b6zL2LoCop7 SMKRX72A+2bVNNFJgrmaXYXfwtkaDGKFG+zz9tEzs2yb5MrKuvhr0J81OtfESfHz2Gnr rA0XSDxGmmWQS+E1+iyIGt4bUMo8Qu7Hjg3+273ahAJfXlfzYff1NWmmz/pGbs8pmAya 4Z9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=UcTrQNFFbWCL7GgAo7RNP0TzY01GvFcQgkQKLT8ew64=; b=fIYdYDTZGOTh60Jh6r8CoTOGZqJ4woqBbm6eD5PZymcmaUr0PeZHTkisNtj5/6F1sd MB14k5Wgjsw0KWMK9JZDTjssSa2PeuB22GKYSOk22nNA99VpM6Bcn17pD2jL7caGUZxl iUefAMFTENgJ7Otp4PgObqmW8t0V73cUB85CtVbSG2tNB28L0YvH9h+9VZ85xRpthLXD dIoCEWesLgtX+jdtBprXoVmhCkcTCzZE4HW0MWW1ODxbEuCdTMLDvoQ/P6t+u6e6TX+C ttYccRIDzp0VImSVDQRnG3uwaEXtRJ6G9p59f9n7AlUxVgrGUGXrQ7Wkx8rVPF7+4Azh laLA== X-Gm-Message-State: AFqh2kqBvbAqr/gDho0mHTAxbf1PegKN8RqNbTwCjfPggfUt7MliN8ae 8X+8j7hGNDq4CfeJHmsmrJOBHg== X-Google-Smtp-Source: AMrXdXu0iCRkiiReh19/Xr0H079pJ0g71zSpaJfuuYIcqiIji5/Tx9DsEseAgyhkwDvwR//d+1WMfA== X-Received: by 2002:ac2:5df2:0:b0:4aa:7821:8021 with SMTP id z18-20020ac25df2000000b004aa78218021mr24329911lfq.34.1673467293337; Wed, 11 Jan 2023 12:01:33 -0800 (PST) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id v20-20020a05651203b400b004b4e6dab30esm2881437lfp.222.2023.01.11.12.01.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jan 2023 12:01:32 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Stephen Boyd , Michael Turquette , Rob Herring , Krzysztof Kozlowski , Taniya Das Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v2 06/14] clk: qcom: cpu-8996: skip ACD init if the setup is valid Date: Wed, 11 Jan 2023 23:01:20 +0300 Message-Id: <20230111200128.2593359-7-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230111200128.2593359-1-dmitry.baryshkov@linaro.org> References: <20230111200128.2593359-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Check whether L2 registers contain correct values and skip programming if they are valid. This follows the code present downstream. Signed-off-by: Dmitry Baryshkov --- drivers/clk/qcom/clk-cpu-8996.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/clk/qcom/clk-cpu-8996.c b/drivers/clk/qcom/clk-cpu-8996.c index 0e0c00d44c6f..7e5246ca7e7f 100644 --- a/drivers/clk/qcom/clk-cpu-8996.c +++ b/drivers/clk/qcom/clk-cpu-8996.c @@ -472,10 +472,15 @@ static void __iomem *base; static void qcom_cpu_clk_msm8996_acd_init(void __iomem *base) { u64 hwid; + u32 val; unsigned long flags; spin_lock_irqsave(&qcom_clk_acd_lock, flags); + val = kryo_l2_get_indirect_reg(L2ACDTD_REG); + if (val == 0x00006a11) + goto out; + hwid = read_cpuid_mpidr() & CPU_AFINITY_MASK; kryo_l2_set_indirect_reg(L2ACDTD_REG, 0x00006a11); @@ -492,6 +497,7 @@ static void qcom_cpu_clk_msm8996_acd_init(void __iomem *base) writel(0xf, base + PERFCL_REG_OFFSET + SSSCTL_OFFSET); } +out: spin_unlock_irqrestore(&qcom_clk_acd_lock, flags); }