From patchwork Fri Apr 16 12:03:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 423550 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=-16.7 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, 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 EF0A3C433B4 for ; Fri, 16 Apr 2021 12:04:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2AE5611AB for ; Fri, 16 Apr 2021 12:04:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243063AbhDPMFG (ORCPT ); Fri, 16 Apr 2021 08:05:06 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:42009 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242911AbhDPMFF (ORCPT ); Fri, 16 Apr 2021 08:05:05 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1618574681; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=YOwzIYJ83xr2d2pUVJi1fOqEdvWf9yPJIsLnKxAkwYk=; b=BkQGX6UEHXOhzypfQMFQJ8jVWDMnUpYs+TKX9GHUPdOhvy9YoRWCTEiBgxMmg6+YNMZ6y88/ mX0P6h3BRNbRCuEAmUf2cWVSn6OYB+UF4+nFF0sSvSOdP3An0PN5rDPDgbEs/gMBeMlFuH/M mv4drwITB6wkOs7u97OjpDPEF58= X-Mailgun-Sending-Ip: 198.61.254.9 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-n07.prod.us-west-2.postgun.com with SMTP id 60797d452cc44d3aea2cc1c0 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 16 Apr 2021 12:04:21 GMT Sender: sibis=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id C0AC5C43467; Fri, 16 Apr 2021 12:04:21 +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 8A136C433CA; Fri, 16 Apr 2021 12:04:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8A136C433CA 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, ulf.hansson@linaro.org, mathieu.poirier@linaro.org, robh+dt@kernel.org, swboyd@chromium.org Cc: 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 02/12] soc: qcom: aoss: Drop power domain support Date: Fri, 16 Apr 2021 17:33:48 +0530 Message-Id: <1618574638-5117-3-git-send-email-sibis@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1618574638-5117-1-git-send-email-sibis@codeaurora.org> References: <1618574638-5117-1-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 51b32f6d9bdb..f084ea9f6b66 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 { @@ -87,20 +84,12 @@ 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); @@ -329,95 +318,6 @@ 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) { @@ -636,13 +536,11 @@ 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); @@ -674,7 +572,6 @@ 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);