From patchwork Mon Jun 7 15:39:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 455488 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 6B04AC48BCD for ; Mon, 7 Jun 2021 15:41:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5643261164 for ; Mon, 7 Jun 2021 15:41:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231617AbhFGPmx (ORCPT ); Mon, 7 Jun 2021 11:42:53 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:63495 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231553AbhFGPmr (ORCPT ); Mon, 7 Jun 2021 11:42:47 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1623080456; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=S1Av6cpcxiYcijyWPv1z6BygAimN7ri/VcSQDyrNnr8=; b=l94wUSow83u9HVD+wFlzLMNm4GEWBSvyvE8glA8TqEmDB3M+t8XKOGY4qlKjikQD1CUGG1iF YWC55A0oajpMluFiTR7xBZyJGkrb9x7H6T0RAfE8gNshHt4Op5wdwUfHk1LdvLjLnypnD8/W AVVsrLBSjgTzFPusnUPpp8nhF5o= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-west-2.postgun.com with SMTP id 60be3e052eaeb98b5ef7315c (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 07 Jun 2021 15:40:53 GMT Sender: sibis=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 4418DC43152; Mon, 7 Jun 2021 15:40:53 +0000 (UTC) Received: from blr-ubuntu-87.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id 01007C43149; Mon, 7 Jun 2021 15:40:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 01007C43149 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=fail smtp.mailfrom=sibis@codeaurora.org From: Sibi Sankar To: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, robh+dt@kernel.org, swboyd@chromium.org Cc: ulf.hansson@linaro.org, rjw@rjwysocki.net, agross@kernel.org, ohad@wizery.com, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dianders@chromium.org, rishabhb@codeaurora.org, sidgup@codeaurora.org, Sibi Sankar Subject: [PATCH v2 11/13] soc: qcom: aoss: Drop power domain support Date: Mon, 7 Jun 2021 21:09:30 +0530 Message-Id: <1623080372-13521-12-git-send-email-sibis@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1623080372-13521-1-git-send-email-sibis@codeaurora.org> References: <1623080372-13521-1-git-send-email-sibis@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The load state resources are expected to follow the life cycle of the remote processor it tracks. However, modeling load state resources as power-domains result in them getting turned off during system suspend and thereby falling out of sync with the remote processors that are still on. Fix this by replacing load state resource control through the generic qmp message send interface instead. Signed-off-by: Sibi Sankar --- drivers/soc/qcom/qcom_aoss.c | 109 ++----------------------------------------- 1 file changed, 3 insertions(+), 106 deletions(-) diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c index 5902cc7b1afd..9bfe82d234cd 100644 --- a/drivers/soc/qcom/qcom_aoss.c +++ b/drivers/soc/qcom/qcom_aoss.c @@ -2,7 +2,6 @@ /* * Copyright (c) 2019, Linaro Ltd */ -#include #include #include #include @@ -11,7 +10,6 @@ #include #include #include -#include #include #include #include @@ -68,7 +66,6 @@ struct qmp_cooling_device { * @event: wait_queue for synchronization with the IRQ * @tx_lock: provides synchronization between multiple callers of qmp_send() * @qdss_clk: QDSS clock hw struct - * @pd_data: genpd data * @cooling_devs: thermal cooling devices */ struct qmp { @@ -88,20 +85,12 @@ struct qmp { struct mutex tx_lock; struct clk_hw qdss_clk; - struct genpd_onecell_data pd_data; struct qmp_cooling_device *cooling_devs; #if IS_ENABLED(CONFIG_DEBUG_FS) struct dentry *debugfs_file; #endif /* CONFIG_DEBUG_FS */ }; -struct qmp_pd { - struct qmp *qmp; - struct generic_pm_domain pd; -}; - -#define to_qmp_pd_resource(res) container_of(res, struct qmp_pd, pd) - static void qmp_kick(struct qmp *qmp) { mbox_send_message(qmp->mbox_chan, NULL); @@ -330,95 +319,6 @@ static void qmp_qdss_clk_remove(struct qmp *qmp) clk_hw_unregister(&qmp->qdss_clk); } -static int qmp_pd_power_toggle(struct qmp_pd *res, bool enable) -{ - char buf[QMP_MSG_LEN] = {}; - - snprintf(buf, sizeof(buf), - "{class: image, res: load_state, name: %s, val: %s}", - res->pd.name, enable ? "on" : "off"); - return qmp_send(res->qmp, buf, sizeof(buf)); -} - -static int qmp_pd_power_on(struct generic_pm_domain *domain) -{ - return qmp_pd_power_toggle(to_qmp_pd_resource(domain), true); -} - -static int qmp_pd_power_off(struct generic_pm_domain *domain) -{ - return qmp_pd_power_toggle(to_qmp_pd_resource(domain), false); -} - -static const char * const sdm845_resources[] = { - [AOSS_QMP_LS_CDSP] = "cdsp", - [AOSS_QMP_LS_LPASS] = "adsp", - [AOSS_QMP_LS_MODEM] = "modem", - [AOSS_QMP_LS_SLPI] = "slpi", - [AOSS_QMP_LS_SPSS] = "spss", - [AOSS_QMP_LS_VENUS] = "venus", -}; - -static int qmp_pd_add(struct qmp *qmp) -{ - struct genpd_onecell_data *data = &qmp->pd_data; - struct device *dev = qmp->dev; - struct qmp_pd *res; - size_t num = ARRAY_SIZE(sdm845_resources); - int ret; - int i; - - res = devm_kcalloc(dev, num, sizeof(*res), GFP_KERNEL); - if (!res) - return -ENOMEM; - - data->domains = devm_kcalloc(dev, num, sizeof(*data->domains), - GFP_KERNEL); - if (!data->domains) - return -ENOMEM; - - for (i = 0; i < num; i++) { - res[i].qmp = qmp; - res[i].pd.name = sdm845_resources[i]; - res[i].pd.power_on = qmp_pd_power_on; - res[i].pd.power_off = qmp_pd_power_off; - - ret = pm_genpd_init(&res[i].pd, NULL, true); - if (ret < 0) { - dev_err(dev, "failed to init genpd\n"); - goto unroll_genpds; - } - - data->domains[i] = &res[i].pd; - } - - data->num_domains = i; - - ret = of_genpd_add_provider_onecell(dev->of_node, data); - if (ret < 0) - goto unroll_genpds; - - return 0; - -unroll_genpds: - for (i--; i >= 0; i--) - pm_genpd_remove(data->domains[i]); - - return ret; -} - -static void qmp_pd_remove(struct qmp *qmp) -{ - struct genpd_onecell_data *data = &qmp->pd_data; - struct device *dev = qmp->dev; - int i; - - of_genpd_del_provider(dev->of_node); - - for (i = 0; i < data->num_domains; i++) - pm_genpd_remove(data->domains[i]); -} - static int qmp_cdev_get_max_state(struct thermal_cooling_device *cdev, unsigned long *state) { @@ -650,13 +550,11 @@ static int qmp_probe(struct platform_device *pdev) if (ret) goto err_close_qmp; - ret = qmp_pd_add(qmp); - if (ret) - goto err_remove_qdss_clk; - ret = qmp_cooling_devices_register(qmp); - if (ret) + if (ret) { dev_err(&pdev->dev, "failed to register aoss cooling devices\n"); + goto err_remove_qdss_clk; + } platform_set_drvdata(pdev, qmp); @@ -689,7 +587,6 @@ static int qmp_remove(struct platform_device *pdev) #endif /* CONFIG_DEBUG_FS */ qmp_qdss_clk_remove(qmp); - qmp_pd_remove(qmp); qmp_cooling_devices_remove(qmp); qmp_close(qmp);