From patchwork Wed Jan 11 19:19:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 641410 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 6B4F1C63797 for ; Wed, 11 Jan 2023 19:20:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234315AbjAKTUU (ORCPT ); Wed, 11 Jan 2023 14:20:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230417AbjAKTUN (ORCPT ); Wed, 11 Jan 2023 14:20:13 -0500 Received: from mail-lj1-x22d.google.com (mail-lj1-x22d.google.com [IPv6:2a00:1450:4864:20::22d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 889BBCDF for ; Wed, 11 Jan 2023 11:20:12 -0800 (PST) Received: by mail-lj1-x22d.google.com with SMTP id s22so17053980ljp.5 for ; Wed, 11 Jan 2023 11:20:12 -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=bUWsUOgM+3gkrkirbO/qNZC62lWFtdVL4LkLhPFIxC9/yMmj584+7CADol/V9AxloD Ta+P9UTZGkldArBHe8LJga7oyKjTNhkqyHWev1hjcWgQwDaFes9dVItKVReOy2i9j9bx GA/2Ao8S6LHJ4vGSGOeQS9qE7iZlqHzNoeaM2ZRyLkx9oTakzS1HlG3J57+0uWrByIa8 IPZCbC+i84msKsYkWlARznbu6bStbzWAaHymXHXVCn9SCXRAN4wa1ylcEX6G7cq3qF+6 T8DfK1+4RBdyFnrwrgsn5m2lA6y2SARFw110wE83QGhki6MSDtt53LuQ/AtCSHirrlX0 hDWA== 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=14n0AaN0U+D1mCmYzY9U8KIJyc9xdOnsn0yEz3+FKDT4vGD0ae/9CuefncZxKlf5Qh WmjySn3HRiNfP+x3T1Q7SX0jSOwfxdXLfvFdPutp4/42Hjpw3XkgQHiRWn8LPnj2bO0r sCX4RpnuE/fhOlWYDAqH9Nq7kpM8PJrAf3/l8hUzT/uHpnPFdMXKdmNaHM7mJloaMWWJ HCHApDm6rQxridRXLrttiHtr8r9Zd9FIoIFs4bd0VLH6NuptrIYaS2WOjZKLo9nfrZMk 0vWYm5n+fh2/cz9WxPRYta030mLsOofuBuA4jnTpyOGj7tIErXW6xi66/MXoRkylFfnO fuYA== X-Gm-Message-State: AFqh2krPeXcB2XhigsNpyxma/yIqkVA+5zmou8dDqk2G+W2aamTd74bZ rjJQiJRngLbOktaIoTu2+VEgcg== X-Google-Smtp-Source: AMrXdXvgTsZRC1nttDyFGKiNVJRn9CeLMjX5AIx6m0iC+pBN/TNNK6riowDi1cP+c7koqjmv7VRS2A== X-Received: by 2002:a05:651c:2399:b0:27f:f184:6ef9 with SMTP id bk25-20020a05651c239900b0027ff1846ef9mr10877432ljb.10.1673464810896; Wed, 11 Jan 2023 11:20:10 -0800 (PST) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id bj36-20020a2eaaa4000000b0027ff2fabcb5sm1807787ljb.104.2023.01.11.11.20.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jan 2023 11:20:10 -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 05/13] clk: qcom: cpu-8996: skip ACD init if the setup is valid Date: Wed, 11 Jan 2023 22:19:56 +0300 Message-Id: <20230111192004.2509750-6-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230111192004.2509750-1-dmitry.baryshkov@linaro.org> References: <20230111192004.2509750-1-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); }