From patchwork Fri Mar 6 07:23:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11423259 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AB08717E0 for ; Fri, 6 Mar 2020 07:24:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8BF8820866 for ; Fri, 6 Mar 2020 07:24:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="caRAlL5h" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726185AbgCFHYA (ORCPT ); Fri, 6 Mar 2020 02:24:00 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:30412 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725855AbgCFHX7 (ORCPT ); Fri, 6 Mar 2020 02:23:59 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1583479439; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=pNuHrGqCUbPfbsklbXCwMeTwekc6NKw2ZW7iJ5WEbXo=; b=caRAlL5hZQGrwOYyUF19UA2M9hpKEl2cHtj5vOt5w46KeHLXVs/FS4cHOd8zlinkNiD/+gWK oZoJd2ArwpWpeQqJFbdgu1sDlyk4DhOsgG1bBQXW7tYkXGYUu4W9ernlEFMVMsk8P4bIuSIm nwaV5sl/XN5bcZRgbungafqibUw= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e61fa7d.7fe2763b8998-smtp-out-n04; Fri, 06 Mar 2020 07:23:41 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 57317C43637; Fri, 6 Mar 2020 07:23:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mkshah-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: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id 00450C433D2; Fri, 6 Mar 2020 07:23:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 00450C433D2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=mkshah@codeaurora.org From: Maulik Shah To: swboyd@chromium.org, mka@chromium.org, evgreen@chromium.org, bjorn.andersson@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, agross@kernel.org, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, Maulik Shah Subject: [PATCH v3 0/4] Introduce SoC sleep stats driver Date: Fri, 6 Mar 2020 12:53:28 +0530 Message-Id: <1583479412-18320-1-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Changes in v3: - Address stephen's comments from v2 in change 1 and 2. - Address bjorn's comments from v2 in change 3 and 4. - Add Rob and bjorn's Reviewed-by on YAML change. Changes in v2: - Convert Documentation to YAML. - Address stephen's comments from v1. - Use debugfs instead of sysfs. - Add sc7180 dts changes for sleep stats - Add defconfig changes to enable driver - Include subsystem stats from [1] in this single stats driver. - Address stephen's comments from [1] - Update cover letter inline to mention [1] Qualcomm Technologies, Inc. (QTI)'s chipsets support SoC level low power modes. SoCs Always On Processor/Resource Power Manager produces statistics of the SoC sleep modes involving lowering or powering down of the rails and the oscillator clock. Additionally multiple subsystems present on SoC like modem, spss, adsp, cdsp maintains their low power mode statistics in shared memory (SMEM). Statistics includes SoC sleep mode type, number of times LPM entered, time of last entry, exit, and accumulated sleep duration in seconds. This series adds a driver to read the stats and export to debugfs. [1] https://lore.kernel.org/patchwork/patch/1149381/ Mahesh Sivasubramanian (2): dt-bindings: Introduce soc sleep stats bindings for Qualcomm SoCs soc: qcom: Add SoC sleep stats driver Maulik Shah (2): arm64: dts: qcom: sc7180: Enable soc sleep stats arm64: defconfig: Enable SoC sleep stats driver for Qualcomm .../bindings/soc/qcom/soc-sleep-stats.yaml | 47 ++++ arch/arm64/boot/dts/qcom/sc7180.dtsi | 5 + arch/arm64/configs/defconfig | 1 + drivers/soc/qcom/Kconfig | 10 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/soc_sleep_stats.c | 279 +++++++++++++++++++++ 6 files changed, 343 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/soc-sleep-stats.yaml create mode 100644 drivers/soc/qcom/soc_sleep_stats.c