From patchwork Tue Sep 15 07:24:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 292855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5217FC433E2 for ; Tue, 15 Sep 2020 07:24:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F015120EDD for ; Tue, 15 Sep 2020 07:24:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="QQRnPO9D" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726222AbgIOHYu (ORCPT ); Tue, 15 Sep 2020 03:24:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726200AbgIOHYm (ORCPT ); Tue, 15 Sep 2020 03:24:42 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D870C06178C for ; Tue, 15 Sep 2020 00:24:41 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id t14so1494464pgl.10 for ; Tue, 15 Sep 2020 00:24:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=PoM8dcszi4ABBEkuvRZ20RPA0JshzdDSlrpShM9qdPc=; b=QQRnPO9DxxyQF69n+gAvyc5ZVThhlnOSdWwS8Q9nDB2v74a7XMzWD3iwM1BlhU8Xpx N+7b7q225OlQDQ2Q+v/5IbSfrS4tzAIvbEpLWRa2BVkYgXHlZKVAhsdzbba7HZJ2EVr7 7uFjMe61muiKhTdkjeBe01EZxFxKPFBjt657vCgdBHW9ev9m2ckHLpo9Wx2lHAQuylPg Qd7lB4e/alOo18mlRIMRZl9fAAQTOXm/l5ddG+zTmR0CLvhvuUuYYJd2/AjRFdQPEDlw zN81QDuhpYU073BiLjtRAlOhm5tgztu1U/v6YzmfzXO3N1lxFvD/iPsfI9j2a0bvUPsk h0aA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=PoM8dcszi4ABBEkuvRZ20RPA0JshzdDSlrpShM9qdPc=; b=DH1vzGbcmJhzo1LL9TjNrYYMsxo/ToiWqa2HjrZ2NoZ0bTGhPlTWlkhalrZMsqhnlC +ENZHqyGKBouDYuxteYIW0jkXOPqzIzSCVtmWfTb0jcPgFMYyZMw07Vgrnn8+9yNdII6 GWQFEbyDCHwjlhqP4a0QxwfMOZmoXqGkf6no+ViE1cuYZiAbAB5rUNcd6ku92NgWkX4h prbHfeyPmf94e18Re2niNNvAATDDYIKN80zLrT7yB9MJa/NxyTUN7cj4sxsTNWW6U+Wx 8KP/1P3Z5YibDK7hFDKeO55NDxJ/5PiR5/cqTDgl0P5U8KfwOvRtwy097uPmH7vSXScZ oeXw== X-Gm-Message-State: AOAM532aFQDQjjks6YvomS48dJ1+02MT3uB1KeubPScxmbmmZdqjdPm8 2wyd6b3P2a+Kpv207bRtZXFO X-Google-Smtp-Source: ABdhPJxbviGwmECdlzw7W63+DAmIWNu/LdmyT7qT+q7QnH5RbqsKAv3ZfzzIg5OxnW91hpmdMbLcVg== X-Received: by 2002:aa7:8816:0:b029:13e:d13d:a10b with SMTP id c22-20020aa788160000b029013ed13da10bmr16313072pfo.39.1600154680676; Tue, 15 Sep 2020 00:24:40 -0700 (PDT) Received: from localhost.localdomain ([103.59.133.81]) by smtp.googlemail.com with ESMTPSA id m24sm10701501pgn.44.2020.09.15.00.24.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 00:24:40 -0700 (PDT) From: Manivannan Sadhasivam To: rjw@rjwysocki.net, viresh.kumar@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: amitk@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org, tdas@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 1/5] dt-bindings: cpufreq: cpufreq-qcom-hw: Document Qcom EPSS compatible Date: Tue, 15 Sep 2020 12:54:19 +0530 Message-Id: <20200915072423.18437-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> References: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The hardware block which carries out CPUFreq operations on SM8250 SoC is called EPSS. Hence, document the compatible. Signed-off-by: Manivannan Sadhasivam Reviewed-by: Amit Kucheria Reviewed-by: Bjorn Andersson --- Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt index 33856947c561..9299028ee712 100644 --- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt @@ -8,7 +8,7 @@ Properties: - compatible Usage: required Value type: - Definition: must be "qcom,cpufreq-hw". + Definition: must be "qcom,cpufreq-hw" or "qcom,cpufreq-epss". - clocks Usage: required From patchwork Tue Sep 15 07:24:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 292853 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFF19C2D0E1 for ; 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Tue, 15 Sep 2020 00:24:44 -0700 (PDT) Received: from localhost.localdomain ([103.59.133.81]) by smtp.googlemail.com with ESMTPSA id m24sm10701501pgn.44.2020.09.15.00.24.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 00:24:44 -0700 (PDT) From: Manivannan Sadhasivam To: rjw@rjwysocki.net, viresh.kumar@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: amitk@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org, tdas@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 2/5] arm64: dts: qcom: sm8250: Add cpufreq hw node Date: Tue, 15 Sep 2020 12:54:20 +0530 Message-Id: <20200915072423.18437-3-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> References: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bjorn Andersson Add cpufreq HW device node to scale 4-Silver/3-Gold/1-Gold+ cores on SM8250 SoCs. Signed-off-by: Bjorn Andersson Signed-off-by: Manivannan Sadhasivam Acked-by: Viresh Kumar Reviewed-by: Amit Kucheria --- arch/arm64/boot/dts/qcom/sm8250.dtsi | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi index e7d139e1a6ce..7eb0eda37b26 100644 --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi @@ -87,6 +87,7 @@ reg = <0x0 0x0>; enable-method = "psci"; next-level-cache = <&L2_0>; + qcom,freq-domain = <&cpufreq_hw 0>; L2_0: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -102,6 +103,7 @@ reg = <0x0 0x100>; enable-method = "psci"; next-level-cache = <&L2_100>; + qcom,freq-domain = <&cpufreq_hw 0>; L2_100: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -114,6 +116,7 @@ reg = <0x0 0x200>; enable-method = "psci"; next-level-cache = <&L2_200>; + qcom,freq-domain = <&cpufreq_hw 0>; L2_200: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -126,6 +129,7 @@ reg = <0x0 0x300>; enable-method = "psci"; next-level-cache = <&L2_300>; + qcom,freq-domain = <&cpufreq_hw 0>; L2_300: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -138,6 +142,7 @@ reg = <0x0 0x400>; enable-method = "psci"; next-level-cache = <&L2_400>; + qcom,freq-domain = <&cpufreq_hw 1>; L2_400: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -150,6 +155,7 @@ reg = <0x0 0x500>; enable-method = "psci"; next-level-cache = <&L2_500>; + qcom,freq-domain = <&cpufreq_hw 1>; L2_500: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -163,6 +169,7 @@ reg = <0x0 0x600>; enable-method = "psci"; next-level-cache = <&L2_600>; + qcom,freq-domain = <&cpufreq_hw 1>; L2_600: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -175,6 +182,7 @@ reg = <0x0 0x700>; enable-method = "psci"; next-level-cache = <&L2_700>; + qcom,freq-domain = <&cpufreq_hw 2>; L2_700: l2-cache { compatible = "cache"; next-level-cache = <&L3_0>; @@ -2076,6 +2084,20 @@ }; }; }; + + cpufreq_hw: cpufreq@18591000 { + compatible = "qcom,sm8250-cpufreq-epss", "qcom,cpufreq-epss"; + reg = <0 0x18591000 0 0x1000>, + <0 0x18592000 0 0x1000>, + <0 0x18593000 0 0x1000>; + reg-names = "freq-domain0", "freq-domain1", + "freq-domain2"; + + clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>; + clock-names = "xo", "alternate"; + + #freq-domain-cells = <1>; + }; }; timer { From patchwork Tue Sep 15 07:24:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 250256 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6D40C433E2 for ; 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Tue, 15 Sep 2020 00:24:48 -0700 (PDT) Received: from localhost.localdomain ([103.59.133.81]) by smtp.googlemail.com with ESMTPSA id m24sm10701501pgn.44.2020.09.15.00.24.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 00:24:48 -0700 (PDT) From: Manivannan Sadhasivam To: rjw@rjwysocki.net, viresh.kumar@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: amitk@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org, tdas@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 3/5] cpufreq: qcom-hw: Use devm_platform_ioremap_resource() to simplify code Date: Tue, 15 Sep 2020 12:54:21 +0530 Message-Id: <20200915072423.18437-4-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> References: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org devm_platform_ioremap_resource() is the combination of platform_get_resource() and devm_ioremap_resource(). Hence, use it to simplify the code a bit. Signed-off-by: Manivannan Sadhasivam Reviewed-by: Amit Kucheria Reviewed-by: Bjorn Andersson --- drivers/cpufreq/qcom-cpufreq-hw.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index ccea34f61152..8a303783927f 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -244,7 +244,6 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) struct of_phandle_args args; struct device_node *cpu_np; struct device *cpu_dev; - struct resource *res; void __iomem *base; int ret, index; @@ -267,13 +266,9 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) index = args.args[0]; - res = platform_get_resource(pdev, IORESOURCE_MEM, index); - if (!res) - return -ENODEV; - - base = devm_ioremap(dev, res->start, resource_size(res)); - if (!base) - return -ENOMEM; + base = devm_platform_ioremap_resource(pdev, index); + if (IS_ERR(base)) + return PTR_ERR(base); /* HW should be in enabled state to proceed */ if (!(readl_relaxed(base + REG_ENABLE) & 0x1)) { From patchwork Tue Sep 15 07:24:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 250257 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D2C1C2D0E0 for ; Tue, 15 Sep 2020 07:27:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CAEC20897 for ; 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Tue, 15 Sep 2020 00:24:52 -0700 (PDT) Received: from localhost.localdomain ([103.59.133.81]) by smtp.googlemail.com with ESMTPSA id m24sm10701501pgn.44.2020.09.15.00.24.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 00:24:52 -0700 (PDT) From: Manivannan Sadhasivam To: rjw@rjwysocki.net, viresh.kumar@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: amitk@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org, tdas@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 4/5] cpufreq: qcom-hw: Use of_device_get_match_data for offsets and row size Date: Tue, 15 Sep 2020 12:54:22 +0530 Message-Id: <20200915072423.18437-5-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> References: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org For preparing the driver to handle further SoC revisions, let's use the of_device_get_match_data() API for getting the device specific offsets and row size instead of defining them globally. Signed-off-by: Manivannan Sadhasivam Reviewed-by: Bjorn Andersson --- drivers/cpufreq/qcom-cpufreq-hw.c | 89 ++++++++++++++++++++----------- 1 file changed, 59 insertions(+), 30 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index 8a303783927f..e3c46984a037 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -19,15 +19,21 @@ #define LUT_L_VAL GENMASK(7, 0) #define LUT_CORE_COUNT GENMASK(18, 16) #define LUT_VOLT GENMASK(11, 0) -#define LUT_ROW_SIZE 32 #define CLK_HW_DIV 2 #define LUT_TURBO_IND 1 -/* Register offsets */ -#define REG_ENABLE 0x0 -#define REG_FREQ_LUT 0x110 -#define REG_VOLT_LUT 0x114 -#define REG_PERF_STATE 0x920 +struct qcom_cpufreq_soc_data { + u32 reg_enable; + u32 reg_freq_lut; + u32 reg_volt_lut; + u32 reg_perf_state; + u8 lut_row_size; +}; + +struct qcom_cpufreq_data { + void __iomem *base; + const struct qcom_cpufreq_soc_data *soc_data; +}; static unsigned long cpu_hw_rate, xo_rate; static bool icc_scaling_enabled; @@ -76,10 +82,11 @@ static int qcom_cpufreq_update_opp(struct device *cpu_dev, static int qcom_cpufreq_hw_target_index(struct cpufreq_policy *policy, unsigned int index) { - void __iomem *perf_state_reg = policy->driver_data; + struct qcom_cpufreq_data *data = policy->driver_data; + const struct qcom_cpufreq_soc_data *soc_data = data->soc_data; unsigned long freq = policy->freq_table[index].frequency; - writel_relaxed(index, perf_state_reg); + writel_relaxed(index, data->base + soc_data->reg_perf_state); if (icc_scaling_enabled) qcom_cpufreq_set_bw(policy, freq); @@ -91,7 +98,8 @@ static int qcom_cpufreq_hw_target_index(struct cpufreq_policy *policy, static unsigned int qcom_cpufreq_hw_get(unsigned int cpu) { - void __iomem *perf_state_reg; + struct qcom_cpufreq_data *data; + const struct qcom_cpufreq_soc_data *soc_data; struct cpufreq_policy *policy; unsigned int index; @@ -99,9 +107,10 @@ static unsigned int qcom_cpufreq_hw_get(unsigned int cpu) if (!policy) return 0; - perf_state_reg = policy->driver_data; + data = policy->driver_data; + soc_data = data->soc_data; - index = readl_relaxed(perf_state_reg); + index = readl_relaxed(data->base + soc_data->reg_perf_state); index = min(index, LUT_MAX_ENTRIES - 1); return policy->freq_table[index].frequency; @@ -110,12 +119,13 @@ static unsigned int qcom_cpufreq_hw_get(unsigned int cpu) static unsigned int qcom_cpufreq_hw_fast_switch(struct cpufreq_policy *policy, unsigned int target_freq) { - void __iomem *perf_state_reg = policy->driver_data; + struct qcom_cpufreq_data *data = policy->driver_data; + const struct qcom_cpufreq_soc_data *soc_data = data->soc_data; unsigned int index; unsigned long freq; index = policy->cached_resolved_idx; - writel_relaxed(index, perf_state_reg); + writel_relaxed(index, data->base + soc_data->reg_perf_state); freq = policy->freq_table[index].frequency; arch_set_freq_scale(policy->related_cpus, freq, @@ -125,8 +135,7 @@ static unsigned int qcom_cpufreq_hw_fast_switch(struct cpufreq_policy *policy, } static int qcom_cpufreq_hw_read_lut(struct device *cpu_dev, - struct cpufreq_policy *policy, - void __iomem *base) + struct cpufreq_policy *policy) { u32 data, src, lval, i, core_count, prev_freq = 0, freq; u32 volt; @@ -134,6 +143,8 @@ static int qcom_cpufreq_hw_read_lut(struct device *cpu_dev, struct dev_pm_opp *opp; unsigned long rate; int ret; + struct qcom_cpufreq_data *drv_data = policy->driver_data; + const struct qcom_cpufreq_soc_data *soc_data = drv_data->soc_data; table = kcalloc(LUT_MAX_ENTRIES + 1, sizeof(*table), GFP_KERNEL); if (!table) @@ -160,14 +171,14 @@ static int qcom_cpufreq_hw_read_lut(struct device *cpu_dev, } for (i = 0; i < LUT_MAX_ENTRIES; i++) { - data = readl_relaxed(base + REG_FREQ_LUT + - i * LUT_ROW_SIZE); + data = readl_relaxed(drv_data->base + soc_data->reg_freq_lut + + i * soc_data->lut_row_size); src = FIELD_GET(LUT_SRC, data); lval = FIELD_GET(LUT_L_VAL, data); core_count = FIELD_GET(LUT_CORE_COUNT, data); - data = readl_relaxed(base + REG_VOLT_LUT + - i * LUT_ROW_SIZE); + data = readl_relaxed(drv_data->base + soc_data->reg_volt_lut + + i * soc_data->lut_row_size); volt = FIELD_GET(LUT_VOLT, data) * 1000; if (src) @@ -237,6 +248,20 @@ static void qcom_get_related_cpus(int index, struct cpumask *m) } } +static const struct qcom_cpufreq_soc_data qcom_soc_data = { + .reg_enable = 0x0, + .reg_freq_lut = 0x110, + .reg_volt_lut = 0x114, + .reg_perf_state = 0x920, + .lut_row_size = 32, +}; + +static const struct of_device_id qcom_cpufreq_hw_match[] = { + { .compatible = "qcom,cpufreq-hw", .data = &qcom_soc_data }, + {} +}; +MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match); + static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) { struct platform_device *pdev = cpufreq_get_driver_data(); @@ -245,6 +270,7 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) struct device_node *cpu_np; struct device *cpu_dev; void __iomem *base; + struct qcom_cpufreq_data *data; int ret, index; cpu_dev = get_cpu_device(policy->cpu); @@ -270,8 +296,17 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) if (IS_ERR(base)) return PTR_ERR(base); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto error; + } + + data->soc_data = of_device_get_match_data(&pdev->dev); + data->base = base; + /* HW should be in enabled state to proceed */ - if (!(readl_relaxed(base + REG_ENABLE) & 0x1)) { + if (!(readl_relaxed(base + data->soc_data->reg_enable) & 0x1)) { dev_err(dev, "Domain-%d cpufreq hardware not enabled\n", index); ret = -ENODEV; goto error; @@ -284,9 +319,9 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) goto error; } - policy->driver_data = base + REG_PERF_STATE; + policy->driver_data = data; - ret = qcom_cpufreq_hw_read_lut(cpu_dev, policy, base); + ret = qcom_cpufreq_hw_read_lut(cpu_dev, policy); if (ret) { dev_err(dev, "Domain-%d failed to read LUT\n", index); goto error; @@ -310,13 +345,13 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) static int qcom_cpufreq_hw_cpu_exit(struct cpufreq_policy *policy) { struct device *cpu_dev = get_cpu_device(policy->cpu); - void __iomem *base = policy->driver_data - REG_PERF_STATE; + struct qcom_cpufreq_data *data = policy->driver_data; struct platform_device *pdev = cpufreq_get_driver_data(); dev_pm_opp_remove_all_dynamic(cpu_dev); dev_pm_opp_of_cpumask_remove_table(policy->related_cpus); kfree(policy->freq_table); - devm_iounmap(&pdev->dev, base); + devm_iounmap(&pdev->dev, data->base); return 0; } @@ -386,12 +421,6 @@ static int qcom_cpufreq_hw_driver_remove(struct platform_device *pdev) return cpufreq_unregister_driver(&cpufreq_qcom_hw_driver); } -static const struct of_device_id qcom_cpufreq_hw_match[] = { - { .compatible = "qcom,cpufreq-hw" }, - {} -}; -MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match); - static struct platform_driver qcom_cpufreq_hw_driver = { .probe = qcom_cpufreq_hw_driver_probe, .remove = qcom_cpufreq_hw_driver_remove, From patchwork Tue Sep 15 07:24:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 292854 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F4FBC43461 for ; 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Tue, 15 Sep 2020 00:24:56 -0700 (PDT) Received: from localhost.localdomain ([103.59.133.81]) by smtp.googlemail.com with ESMTPSA id m24sm10701501pgn.44.2020.09.15.00.24.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 00:24:56 -0700 (PDT) From: Manivannan Sadhasivam To: rjw@rjwysocki.net, viresh.kumar@linaro.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: amitk@kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org, tdas@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 5/5] cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC Date: Tue, 15 Sep 2020 12:54:23 +0530 Message-Id: <20200915072423.18437-6-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> References: <20200915072423.18437-1-manivannan.sadhasivam@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org SM8250 SoC uses EPSS block for carrying out the cpufreq duties. Hence, add support for it in the driver with relevant dev data. Signed-off-by: Manivannan Sadhasivam Reviewed-by: Amit Kucheria Reviewed-by: Bjorn Andersson --- drivers/cpufreq/qcom-cpufreq-hw.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index e3c46984a037..c485be839172 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -256,8 +256,17 @@ static const struct qcom_cpufreq_soc_data qcom_soc_data = { .lut_row_size = 32, }; +static const struct qcom_cpufreq_soc_data epss_soc_data = { + .reg_enable = 0x0, + .reg_freq_lut = 0x100, + .reg_volt_lut = 0x200, + .reg_perf_state = 0x320, + .lut_row_size = 4, +}; + static const struct of_device_id qcom_cpufreq_hw_match[] = { { .compatible = "qcom,cpufreq-hw", .data = &qcom_soc_data }, + { .compatible = "qcom,cpufreq-epss", .data = &epss_soc_data }, {} }; MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match);