From patchwork Fri Feb 21 08:49:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11395821 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 1B7C014BC for ; Fri, 21 Feb 2020 08:50:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE45D24673 for ; Fri, 21 Feb 2020 08:50:28 +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="RtA+Z2GS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388543AbgBUIu2 (ORCPT ); Fri, 21 Feb 2020 03:50:28 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:34683 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728035AbgBUIu2 (ORCPT ); Fri, 21 Feb 2020 03:50:28 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1582275027; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=NDf76POzrBaiIQjXswqcEzYSjtruwnkMVhDJkl3rhyo=; b=RtA+Z2GShhO3Ot4vTm346eSj9UdCVzIJbj7A+b5JQBnngN33QeXKyByd9Q0eLjA9Z2KtBOPx H/0GjX5Zpfu4xHLK34mxOO3aA1qIYMgLpwolTj+CmT8CQLgZV3D5ugiJLFHNY/6FD3zuOkrG dRpzVyHIMDR5JgYCZsVngZqwZ3w= 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 5e4f99ce.7f54d6adefb8-smtp-out-n01; Fri, 21 Feb 2020 08:50:22 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 0836BC447A2; Fri, 21 Feb 2020 08:50:22 +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 95935C43383; Fri, 21 Feb 2020 08:50:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 95935C43383 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 v2 0/4] Introduce SoC sleep stats driver Date: Fri, 21 Feb 2020 14:19:42 +0530 Message-Id: <1582274986-17490-1-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 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