From mboxrd@z Thu Jan 1 00:00:00 1970 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=-2.4 required=3.0 tests=DKIM_SIGNED, FROM_LOCAL_NOVOWEL,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIM_INVALID,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 43A2AC433F5 for ; Fri, 24 Aug 2018 20:07:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F41EF2150F for ; Fri, 24 Aug 2018 20:07:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="UPjo8tkz"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="mhNF0QDH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F41EF2150F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727942AbeHXXn0 (ORCPT ); Fri, 24 Aug 2018 19:43:26 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:52592 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726675AbeHXXnZ (ORCPT ); Fri, 24 Aug 2018 19:43:25 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 784B96053D; Fri, 24 Aug 2018 20:07:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1535141239; bh=80p+hVcHiozCeb8iIF+K72+zmyqyACym21JQWgbupek=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UPjo8tkzXSBLQBfj+UjRqY2ponTuCuOSxC078H8Ep+O1XRZadrW1lB+P9uxddaQKs KW66Cs3jU92j30uTw7Mr2j301DdvXVNksaGn8NcNQnO5RBkXq/Hy/Ua6WMJ6TirvwN UaEQlelRJhv2EekLa2mQd0ZCS4PbLTTLjhcEaKZQ= Received: from rplsssn-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: rplsssn@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 88DBB60591; Fri, 24 Aug 2018 20:07:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1535141236; bh=80p+hVcHiozCeb8iIF+K72+zmyqyACym21JQWgbupek=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mhNF0QDHWKcLiSlJso50gNejM4/B9v6YGbIWCxQ22iMJ+9jmQgXloYUh0/0LqLchm rCmvFXo7JoHOOZCaXKn1MMvpqoZK5pgONMgHdTQoT3zmJ/nsTqcAhsFnb0vPIWfBdu JwoBpOO8GxGGbQgJlNEJlLQb7MIAwh3NqoSHv8t8= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 88DBB60591 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=rplsssn@codeaurora.org From: "Raju P.L.S.S.S.N" To: andy.gross@linaro.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-pm@vger.kernel.org Cc: rnayak@codeaurora.org, bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, lorenzo.pieralisi@arm.com, rafael@kernel.org, drake@endlessm.com, sboyd@kernel.org, evgreen@chromium.org, dianders@chromium.org, mka@chromium.org, ilina@codeaurora.org, "Raju P.L.S.S.S.N" Subject: [PATCH RFC 3/6] drivers: qcom: system_pm: Add power management ops Date: Sat, 25 Aug 2018 01:36:25 +0530 Message-Id: <1535141188-29731-4-git-send-email-rplsssn@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1535141188-29731-1-git-send-email-rplsssn@codeaurora.org> References: <1535141188-29731-1-git-send-email-rplsssn@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add suspend power management ops so that the sleep & wake resource requests are flushed to corresponding TCS. The firmware would ensure that the buffered requests in TCS are sent to Resource Power Manager during entry to deepest low power modes. Signed-off-by: Raju P.L.S.S.S.N --- drivers/soc/qcom/Kconfig | 2 +- drivers/soc/qcom/system_pm.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index a52abe9..ac0e413 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -88,7 +88,7 @@ config QCOM_RPMH config QCOM_SYSTEM_PM bool "Qualcomm System PM" - depends on CPU_PM && QCOM_RPMH + depends on CPU_PM && PM_SLEEP && QCOM_RPMH help Support for QCOM platform system power management to perform tasks necessary while application processor votes for deeper modes so that diff --git a/drivers/soc/qcom/system_pm.c b/drivers/soc/qcom/system_pm.c index 40e5aa7..8810b84 100644 --- a/drivers/soc/qcom/system_pm.c +++ b/drivers/soc/qcom/system_pm.c @@ -67,6 +67,23 @@ static int sys_pm_probe(struct platform_device *pdev) return 0; } +static int sys_pm_suspend(struct device *dev) +{ + if (rpmh_ctrlr_idle(dev)) { + /* Flush the sleep/wake sets in RSC controller */ + rpmh_flush(dev); + } else { + pr_err("%s:rpmh controller is busy\n", __func__); + return -EBUSY; + } + + return 0; +} + +static const struct dev_pm_ops sys_pm_dev_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(sys_pm_suspend, NULL) +}; + static const struct of_device_id sys_pm_drv_match[] = { { .compatible = "qcom,system-pm", }, { } @@ -77,6 +94,7 @@ static int sys_pm_probe(struct platform_device *pdev) .driver = { .name = KBUILD_MODNAME, .of_match_table = sys_pm_drv_match, + .pm = &sys_pm_dev_pm_ops, }, }; builtin_platform_driver(sys_pm_driver); -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation.