From patchwork Wed May 11 14:56:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 12846300 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 7B360C433EF for ; Wed, 11 May 2022 14:57:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245295AbiEKO5m (ORCPT ); Wed, 11 May 2022 10:57:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245293AbiEKO5f (ORCPT ); Wed, 11 May 2022 10:57:35 -0400 Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B450712F9 for ; Wed, 11 May 2022 07:57:27 -0700 (PDT) Received: by mail-lj1-x22c.google.com with SMTP id t25so2956004ljd.6 for ; Wed, 11 May 2022 07:57:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=o0SVdNZTesTCt27Lh8nfNAnhtcZlgzCNi0eR/b6PWgs=; b=btWLqxTiISmaw5e1BljDRvBH2qafHAGi+/5/pMimaSVkt/0UTBLhs9SqsV0uEaLFt2 NLn2wz4Srkn2BZJWzNPD8D/xV9qv29WDGHyd4GTTH77GWOwL8X+5HeezMNr8KpbEXnJD EfUOJNVvwQetEL9xVC5VFP2V3XykQ+SV6lo4cXjoRhkSHwkCLhFrN4vG4mPGvGHoC/Dx MrPIXa+Re/2PPgzGTzW2iqBCM/4ex3tpxxlh+HTTyNyfWxFis6pD6197IP8JhpVVXsGw 3uzdXjzSPnP2uZ+PpprRuKT01aeOrPl/BcMZd3fN4wKMy5RWss1bpCc9q3pT0Cjpi3bF 7bQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=o0SVdNZTesTCt27Lh8nfNAnhtcZlgzCNi0eR/b6PWgs=; b=Wfi9LdBLWP2/QWH9TG71WuZHFIfvsRWOPREqbDEprOrkb91bvF4Jw+FC8dRvMTx2Rt 8y+ZD/U5+MhHePkH4ftMPA/HvKHszaT/zn2+ql2NLPl37/+fA4gHmf0tlkySZGm7FuKT WB93/2EzjFZ8fRz/p1UoWysSWwqV/WhyrkisheupY+c7JB/1O81U36cvHlDyH9R7JKLP sseWpSD2JJZCfwT6SFJyhINGSUbE2mXyQSDCzChEDvnBpEzWnIoM+ToesXEUuRcQ0ONs QXs1yNjNAg7rvgDyyM7pqCN+aHH0BzqY+L/DudnZLeVOt/4TuhSPXEEEVVHyKU3re17w DzVA== X-Gm-Message-State: AOAM531Kixz++2OU//eQpzB53xwEK3hN6T+R62trRIDPv+iBFWv9jamL FiG/AgvWFLC/l8PZHcKgrUB48A== X-Google-Smtp-Source: ABdhPJzGAxm2Ip0gBbvXZ4HIZMDDktzLw0NmQQSoajM67RWvgRmy7EZgRS/ywmFdRNSc6+KE8jk78g== X-Received: by 2002:a2e:8496:0:b0:24f:130d:e38b with SMTP id b22-20020a2e8496000000b0024f130de38bmr17242674ljh.498.1652281045536; Wed, 11 May 2022 07:57:25 -0700 (PDT) Received: from localhost.localdomain (h-98-128-181-154.NA.cust.bahnhof.se. [98.128.181.154]) by smtp.gmail.com with ESMTPSA id z26-20020a19f71a000000b0047255d210f3sm320793lfe.34.2022.05.11.07.57.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 07:57:24 -0700 (PDT) From: Ulf Hansson To: "Rafael J . Wysocki" , linux-pm@vger.kernel.org Cc: "Rafael J . Wysocki" , Geert Uytterhoeven , Maulik Shah , Gabriel Fernandez , Alexandre Torgue , Dmitry Osipenko , Kevin Hilman , Ulf Hansson , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 04/14] PM: domains: Rename irq_safe_dev_in_no_sleep_domain() in genpd Date: Wed, 11 May 2022 16:56:54 +0200 Message-Id: <20220511145704.698189-5-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220511145704.698189-1-ulf.hansson@linaro.org> References: <20220511145704.698189-1-ulf.hansson@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The name "irq_safe_dev_in_no_sleep_domain", doesn't really match the conditions that are being checked in the function, hence the code becomes a bit confusing to read. Let's clarify this by renaming it into "irq_safe_dev_in_sleep_domain" and let's also take the opportunity to clarify a corresponding comment in the code. Signed-off-by: Ulf Hansson --- drivers/base/power/domain.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 5059c5d2e64a..269bfa3d2303 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -131,7 +131,7 @@ static const struct genpd_lock_ops genpd_spin_ops = { #define genpd_is_cpu_domain(genpd) (genpd->flags & GENPD_FLAG_CPU_DOMAIN) #define genpd_is_rpm_always_on(genpd) (genpd->flags & GENPD_FLAG_RPM_ALWAYS_ON) -static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev, +static inline bool irq_safe_dev_in_sleep_domain(struct device *dev, const struct generic_pm_domain *genpd) { bool ret; @@ -139,9 +139,9 @@ static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev, ret = pm_runtime_is_irq_safe(dev) && !genpd_is_irq_safe(genpd); /* - * Warn once if an IRQ safe device is attached to a no sleep domain, as - * to indicate a suboptimal configuration for PM. For an always on - * domain this isn't case, thus don't warn. + * Warn once if an IRQ safe device is attached to a domain, which + * callbacks are allowed to sleep. This indicates a suboptimal + * configuration for PM, but it doesn't matter for an always on domain. */ if (ret && !genpd_is_always_on(genpd)) dev_warn_once(dev, "PM domain %s will not be powered off\n", @@ -653,7 +653,7 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on, * device is part of a non-IRQ safe domain. */ if (!pm_runtime_suspended(pdd->dev) || - irq_safe_dev_in_no_sleep_domain(pdd->dev, genpd)) + irq_safe_dev_in_sleep_domain(pdd->dev, genpd)) not_suspended++; } @@ -925,7 +925,7 @@ static int genpd_runtime_suspend(struct device *dev) * If power.irq_safe is set, this routine may be run with * IRQs disabled, so suspend only if the PM domain also is irq_safe. */ - if (irq_safe_dev_in_no_sleep_domain(dev, genpd)) + if (irq_safe_dev_in_sleep_domain(dev, genpd)) return 0; genpd_lock(genpd); @@ -965,7 +965,7 @@ static int genpd_runtime_resume(struct device *dev) * As we don't power off a non IRQ safe domain, which holds * an IRQ safe device, we don't need to restore power to it. */ - if (irq_safe_dev_in_no_sleep_domain(dev, genpd)) { + if (irq_safe_dev_in_sleep_domain(dev, genpd)) { timed = false; goto out; }