From patchwork Sun Dec 2 03:55:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taniya Das X-Patchwork-Id: 10707821 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 28C4F1057 for ; Sun, 2 Dec 2018 03:55:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1D11C2B371 for ; Sun, 2 Dec 2018 03:55:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 10ACA2B612; Sun, 2 Dec 2018 03:55:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1AE032B371 for ; Sun, 2 Dec 2018 03:55:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725372AbeLBDzU (ORCPT ); Sat, 1 Dec 2018 22:55:20 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:36052 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725298AbeLBDzU (ORCPT ); Sat, 1 Dec 2018 22:55:20 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 7501A601C4; Sun, 2 Dec 2018 03:55:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1543722916; bh=Zhuf8XDZCM24D969x6tJQNEyvmsx16/kTh8OBn2LPdk=; h=From:To:Cc:Subject:Date:From; b=XeWNDfZElIFjHa3lvk80cbV4u8ufIdz04YyHDuqKVEtKCXt0bqrJhhah4n7HsEG4r bTRVy9PiHYeFSa4ai4eyNTVVWdurdEaNdW/G/OTl+La8B3eXHUi/RKwf4aQBcaqcbH qTxEjSCjmTbG4ebf1PAukilRQiuvFonVufvIFbB8= Received: from tdas-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tdas@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2B36E601C4; Sun, 2 Dec 2018 03:55:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1543722915; bh=Zhuf8XDZCM24D969x6tJQNEyvmsx16/kTh8OBn2LPdk=; h=From:To:Cc:Subject:Date:From; b=Sq3vzxvOlQArYYbKs10OofTDAte5bNLBKtuzWNFuZDLa1KUYDVG6Tysl29Xafz74Z VIGyxZeJc0Uo97awnmrUwbXpR//TGsv94Wde3kgvFMLQYjeI5HuZ4M5BFvXcUy+Teq NRQBRlsq0mPJtJAsECUdjg7Oiy8KKiCfukCqnCOw= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2B36E601C4 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=tdas@codeaurora.org From: Taniya Das To: "Rafael J. Wysocki" , Viresh Kumar , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Stephen Boyd Cc: Rajendra Nayak , devicetree@vger.kernel.org, robh@kernel.org, skannan@codeaurora.org, linux-arm-msm@vger.kernel.org, evgreen@google.com, Taniya Das Subject: [PATCH v11 0/2] cpufreq: qcom-hw: Add support for QCOM cpufreq HW Date: Sun, 2 Dec 2018 09:25:01 +0530 Message-Id: <1543722903-10989-1-git-send-email-tdas@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP [v11] * Updated the code logic as per Stephen. * Default boost enabled is removed. * Update the clock name to use "alternate" for GPLL0 source in code and Documentation binding. * Module description updated. * perf_base updated to perf_state_reg. [v10] * Update Documentation binding for cpufreq node. * Make the driver 'tristate' instead of 'bool' and update code. * Update the clock name to reflect the hardware name. * Remove support for varying offset. [v9] * Update the Documentation binding for freq-domain-cells & cpufreq node. * Address comments in Kconfig.arm & Makefile. * Remove include file & MODULE_DESCRIPTION not required. * Fix the code for 'of_node_put(cpu_np)'. [v8] * Address comments to update code to take cpufreq_hw phandle and index from the CPU nodes. * Updated the Documentation for the above change in DT. * Updated logic for assigning 'qcom_freq_domain_map' for related CPUs. * Clock input to the HW block is taken from DT which has been updated in code and Device tree documentation. [v7] * Updated the logic to check for related CPUs. [v6] * Renamed match table 'qcom_cpufreq_hw_match'. * Renamed 'qcom_read_lut' to 'qcom_cpufreq_hw_read_lut'. * Updated the logic to check for related CPUs at the beginning of the 'qcom_cpu_resources_init'. * Use devm_ioremap_resource instead of devm_ioremap. * Update the use of of_node_put to handle error conditions. * Use policy->cached_resolved_idx in fast switch callback. * Keep precalculated offsets 'reg_bases'. * XO clock is taken from Device tree. * Update documentation binding for clocks/clock-names. * Minor comments in Kconfig.arm. * Comments to move dev_info to dev_dbg. [v5] * Remove mapping different register regions of perf/lut/enable, instead map the entire HW region. * Add reg_offset/cpufreq_qcom_std_offsets to be supplied as device data. * Check of src == 0 during lut read. * Add of_node_put(cpu_np) in qcom_get_related_cpus * Update the qcom_cpu_resources_init for register offset data, and cleanup the related cpus to keep a single copy of CPUfreq. * Replace FW with HW, update Kconfig, rename filename qcom-cpufreq-hw.c * Update the documentation binding to reflect the changes of mapping the * entire HW region. [v4] * Fixed console messages as per comments. * Return error from qcom_resources_init() in the cases where failed to get frequency domain. * Rename cpu_dev to cpu_np in qcom_resources_init, qcom_get_related_cpus(). Also use temp variable freq_np in qcom_get_related_cpus(). * Update qcom_cpufreq_fw_get() to use the policy data to incoporate the hotplug use case. * Update code to use of fast_switching. * Check for !c->max_cores instead of cpumask_empty in qcom_get_related_cpus(). * Update the logic of assigning 'c' to qcom_freq_domain_map[cpu]. [v3] * Remove index check from 'qcom_cpufreq_fw_target_index'. * Update the Documentation binding to add the platform specific properties in the CPU nodes, node name "qcom,freq-domain". * Update return value to '0' from -ENODEV from 'qcom_cpufreq_fw_get'. * Update the logic for boost frequency to use local variables instead of cpufreq driver data in 'qcom_read_lut'. * Update the logic in 'qcom_get_related_cpus' to find the related cpus. * Update the reg-names to remove "_base" and also update the binding with the description of these registers. * Update the logic in 'qcom_resources_init' to address the new device tree notation of handling the frequency domain phandles. [v2] * Fixed the alignment issues in "qcom_cpufreq_fw_target_index" for dev_err and also for "qcom_cpu_resources_init". * Removed ret = 0 from qcom_get_related_cpus and added to check for cpu_mask_empty to return -ENOENT. * Fixes qcom_cpu_resources_init function * Remove initialization of 'index' * Check for valid 'c' * Removed initialization of 'prev_cc' from 'qcom_read_lut'. Taniya Das (2): dt-bindings: cpufreq: Introduce QCOM CPUFREQ Firmware bindings cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver .../bindings/cpufreq/cpufreq-qcom-hw.txt | 172 +++++++++++ drivers/cpufreq/Kconfig.arm | 11 + drivers/cpufreq/Makefile | 1 + drivers/cpufreq/qcom-cpufreq-hw.c | 334 +++++++++++++++++++++ 4 files changed, 518 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.txt create mode 100644 drivers/cpufreq/qcom-cpufreq-hw.c --- Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member of the Code Aurora Forum, hosted by the Linux Foundation.