From patchwork Wed Mar 15 13:23:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 664438 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0123EC7618B for ; Wed, 15 Mar 2023 13:23:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230421AbjCONXk (ORCPT ); Wed, 15 Mar 2023 09:23:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231871AbjCONXj (ORCPT ); Wed, 15 Mar 2023 09:23:39 -0400 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7631F59E8 for ; Wed, 15 Mar 2023 06:23:37 -0700 (PDT) Received: by mail-ed1-x530.google.com with SMTP id cn21so45311888edb.0 for ; Wed, 15 Mar 2023 06:23:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1678886616; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=HLRj53L/DjbMBhi79PBbCLq4uHXoSyceNvFogThLTB0=; b=O83NQyj//J7bmfedXnmbIqeW8+JZ+xkH6PdT0B1LHXQwigwDA4kKO9qois1oqflooO 2qN3SbCw7sMLxHiCBH7UUzaSlQI4tGkIPl7tWzRhqwe4cPeQHepWNoSWdv1JkeiUSAqn 6SzVrAsKaY8+/+6upW+K0/kX1dagOxqA+52IjhgReVcifbfVHPco3q1/sknGmtHVlrny zCmslTLInyjOgsClAVV/udywSh2Gcem+dLJEEkkoouFM6o1cNve15fCMg3e293FtrHTG hgnBZQ8zlkCCYlgZaw+6j17I9qlldEHXyzFQlTMNuVVtaAODnnJm+KQvCRdBVtEzX7Il 8rzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678886616; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=HLRj53L/DjbMBhi79PBbCLq4uHXoSyceNvFogThLTB0=; b=YQOdaMh1uoQ3UjI7CpHC0mjaUymCOwTrylMGhVbKVSGna0GYlD4WVD0qdiTyEY1jXS LY+0tZUOcRyfYnqEquBAjIbRHpIb9eqpZdnyFojfCI9Dzp/ipvCAV1rgG1PVEsV7Kqe1 V96c8iaYpWRpzewdGnK6kkn36L9S23BigxR9K+CQ3VFFDblicbuQm0SipZw7tjDTUWHU LPjrK4gWaju4HiwKQtJV5TmzUnAb5ZYFttkv7CzJDKcpRlVteTDJ6oOefxH/Egt90TZx 14V6py4AbrgDUinzxa/rGbctaVzTVw1qj2BgWwJXXgz6Ogae6tjXXEKgYgaGJHufb6dl KxbA== X-Gm-Message-State: AO0yUKUwS4NDRe6TOItXy20He0GxsjjzyCjNtlHfGV6ZbQ81rH0yue9i RqUea+WXmbQLuHToihZMrVpulw== X-Google-Smtp-Source: AK7set9pBrz1LS8rrkjEkjlBWW/QTLUzc6ajPIuUyelYl6UYlSSo60YiGfHokLYhvw8Y59YDahM3DQ== X-Received: by 2002:a17:906:c2c3:b0:870:b950:18d4 with SMTP id ch3-20020a170906c2c300b00870b95018d4mr5975836ejb.5.1678886615800; Wed, 15 Mar 2023 06:23:35 -0700 (PDT) Received: from localhost.localdomain ([94.52.112.99]) by smtp.gmail.com with ESMTPSA id pj18-20020a170906d79200b008b133f9b33dsm2497365ejb.169.2023.03.15.06.23.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Mar 2023 06:23:35 -0700 (PDT) From: Abel Vesa To: "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Pavel Machek , Len Brown , Greg Kroah-Hartman , Bjorn Andersson , Andy Gross , Konrad Dybcio , Mike Turquette , Stephen Boyd , Saravana Kannan Cc: linux-pm@vger.kernel.org, Linux Kernel Mailing List , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, Doug Anderson , Matthias Kaehlcke Subject: [RFC PATCH 1/5] PM: domains: Allow power off queuing from providers Date: Wed, 15 Mar 2023 15:23:26 +0200 Message-Id: <20230315132330.450877-2-abel.vesa@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230315132330.450877-1-abel.vesa@linaro.org> References: <20230315132330.450877-1-abel.vesa@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org In some cases, the providers might choose to refuse powering off some domains until all of the consumer have had a chance to probe, that is, until sync state callback has been called. Such providers might choose to disable such domains on their on, from the sync state callback. So, in order to do that, they need a way to queue up a power off request. Since the generic genpd already has such API, make that available to those providers. Signed-off-by: Abel Vesa --- drivers/base/power/domain.c | 3 ++- include/linux/pm_domain.h | 6 ++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 32084e38b73d..97d4e2f2da91 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -649,10 +649,11 @@ static int _genpd_power_off(struct generic_pm_domain *genpd, bool timed) * Queue up the execution of genpd_power_off() unless it's already been done * before. */ -static void genpd_queue_power_off_work(struct generic_pm_domain *genpd) +void genpd_queue_power_off_work(struct generic_pm_domain *genpd) { queue_work(pm_wq, &genpd->power_off_work); } +EXPORT_SYMBOL_GPL(genpd_queue_power_off_work); /** * genpd_power_off - Remove power from a given PM domain. diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index f776fb93eaa0..c9c0b4916e25 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -231,6 +231,7 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, int pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off); int pm_genpd_remove(struct generic_pm_domain *genpd); +void genpd_queue_power_off_work(struct generic_pm_domain *genpd); int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state); int dev_pm_genpd_add_notifier(struct device *dev, struct notifier_block *nb); int dev_pm_genpd_remove_notifier(struct device *dev); @@ -278,6 +279,11 @@ static inline int pm_genpd_remove(struct generic_pm_domain *genpd) return -EOPNOTSUPP; } +void genpd_queue_power_off_work(struct generic_pm_domain *genpd); +{ + return -EOPNOTSUPP; +} + static inline int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state) {