From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="eWXi+Fwk" Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 365D110C2 for ; Wed, 29 Nov 2023 10:59:45 -0800 (PST) Received: by mail-ej1-x631.google.com with SMTP id a640c23a62f3a-9e1021dbd28so13050466b.3 for ; Wed, 29 Nov 2023 10:59:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701284383; x=1701889183; 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=TfCS7EJc5WZz01BXUAh+J5+ayBuQvlNbLl5dADuNIr0=; b=eWXi+FwkEeykvAIkfTJ3q9XLTq63hkmWKRgBD2kWeTzJ1gEKVp39kyT86AKisFlVif Z2rPmSrEGWUQnN9qSskLJhN5BAAoF+fO2s05TE7jRSTKUfs1p87A1Y7m4ixGITWetqsj NsMmrvXY5oymfqYjOUQqR6VBPyAYB1JkP81tguNTk3JQFahzDiwTW11CcvWzXiEbB6RQ xoWijcsfq4OzotzSUIYaFSzzNDYX7TD2+TUpkf0xsFLYCBmsq/f9ghwWkr/RB3aLoufs LRJUxMuDjzbXNbvQSbH5zN9yUbTrGXosp20foAyoJ+U1VEvLUBok/pSriwD0/wskfs21 Q7ew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701284383; x=1701889183; 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=TfCS7EJc5WZz01BXUAh+J5+ayBuQvlNbLl5dADuNIr0=; b=mYcFtN3iMr5wtUcIVSmFKstmcCqluSJvFt/r7WbdfkCNo19qr2n2v4p6NMMGkU5l8k aD/9TJmzqSh5QovsoJp78g2lYVXPNIKIjlgY987mwMzrs6QuRPs/GqPUQP2Xc6miJY9V WNPwfycjQY7KkbmxffNF341dKph0dHTVfNH6opyUJBT95+S4dfB5pIAV5JPlUQQiqTyB iY8MKrucm7K9sX0NiMe6jO4eADduqtSIDlInGX8Qk0PT4+/I50BWLeM583IyxBRThBHi GhkBKM27rwEKNeL97acAcR6bpIhVxGub9voHzCo6MbiIiSEq/+cE2TWxgCjgvqVEAzt+ 4maw== X-Gm-Message-State: AOJu0YxtRMCjKkUch4FkbKACOEJHiTHFkxmGY7waz8u3sq9AwJ36umI/ Wxr7mElFtBzh+cMZj6uD/CEZ7g== X-Google-Smtp-Source: AGHT+IHdsAEntAPDNPbOmIJ9ctzpXER6XkzToZVGHNKTijCtH9Cu2wlbCO+KcXmcyrZtzhKCEcA++w== X-Received: by 2002:a17:907:1687:b0:a12:7347:3b5d with SMTP id cx7-20020a170907168700b00a1273473b5dmr4777939ejd.16.1701284383644; Wed, 29 Nov 2023 10:59:43 -0800 (PST) Received: from [10.167.154.1] (178235187166.dynamic-4-waw-k-2-3-0.vectranet.pl. [178.235.187.166]) by smtp.gmail.com with ESMTPSA id o11-20020a1709061d4b00b009faca59cf38sm8160232ejh.182.2023.11.29.10.59.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 10:59:43 -0800 (PST) From: Konrad Dybcio Date: Wed, 29 Nov 2023 19:59:28 +0100 Subject: [PATCH v2 09/15] clk: qcom: gcc-sm6115: Add runtime PM Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230717-topic-branch_aon_cleanup-v2-9-2a583460ef26@linaro.org> References: <20230717-topic-branch_aon_cleanup-v2-0-2a583460ef26@linaro.org> In-Reply-To: <20230717-topic-branch_aon_cleanup-v2-0-2a583460ef26@linaro.org> To: Bjorn Andersson , Andy Gross , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1701284367; l=2112; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=qGB7J3P0DJtbWo81wrMojy7eEnHmPOy4px200OELZEk=; b=aIRs2rJlONz8naMSqsaqRWgFHG1nnH/4qxSnOHk2nrHC8tiATP5GenS/hkWEDZjLTjFjESVeT ii6pxDzgV4WBTZFi8rmYx+KpJrUry8oLFFbRFwabsdeDdzps/0fjRE4 X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= The GCC block on SM6115 is powered by the VDD_CX rail. We need to ensure that CX is enabled to prevent unwanted power collapse and that the reference is dropped when unused so that the system can enter a firmware-managed lower power state. Enable runtime PM to keep the power flowing only when necessary. Signed-off-by: Konrad Dybcio --- drivers/clk/qcom/gcc-sm6115.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/clk/qcom/gcc-sm6115.c b/drivers/clk/qcom/gcc-sm6115.c index 87a2bfe222a3..3e0a3fd09718 100644 --- a/drivers/clk/qcom/gcc-sm6115.c +++ b/drivers/clk/qcom/gcc-sm6115.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -3384,14 +3385,26 @@ static int gcc_sm6115_probe(struct platform_device *pdev) struct regmap *regmap; int ret; + ret = devm_pm_runtime_enable(&pdev->dev); + if (ret) + return ret; + + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret) + return ret; + regmap = qcom_cc_map(pdev, &gcc_sm6115_desc); - if (IS_ERR(regmap)) + if (IS_ERR(regmap)) { + pm_runtime_put(&pdev->dev); return PTR_ERR(regmap); + } ret = qcom_cc_register_rcg_dfs(regmap, gcc_dfs_clocks, ARRAY_SIZE(gcc_dfs_clocks)); - if (ret) + if (ret) { + pm_runtime_put(&pdev->dev); return ret; + } clk_alpha_pll_configure(&gpll8, regmap, &gpll8_config); clk_alpha_pll_configure(&gpll9, regmap, &gpll9_config); @@ -3406,7 +3419,10 @@ static int gcc_sm6115_probe(struct platform_device *pdev) qcom_branch_set_clk_en(regmap, 0x36004); /* GCC_GPU_CFG_AHB_CLK */ qcom_branch_set_clk_en(regmap, 0x2b06c); /* GCC_SYS_NOC_CPUSS_AHB_CLK */ - return qcom_cc_really_probe(pdev, &gcc_sm6115_desc, regmap); + ret = qcom_cc_really_probe(pdev, &gcc_sm6115_desc, regmap); + pm_runtime_put(&pdev->dev); + + return ret; } static struct platform_driver gcc_sm6115_driver = { -- 2.43.0